Exploring the World of Piezo Elements: Applications and Innovations

Piezoelectricity is a property of certain materials that means they generate electricity when subjected to mechanical stress. Piezoelectricity is most commonly seen in ceramics, but it’s also present in some types of glass and crystals. The most common application for piezoelectricity is generating electricity from sound waves—you may have heard about how some people use piezoelectric plates under their feet (or elsewhere) to charge up devices like smartphones or digital cameras while they are exercising. There are many other uses for this technology as well!

Piezo elements are used in everything from washing machines to musical instruments.

Piezo elements are used in everything from washing machines to musical instruments. Piezoelectricity is the ability of certain materials to generate an electrical charge when they are subjected to mechanical stress, such as pressure or bending. Piezo elements are made of ceramic, glass or other materials that expand when they’re subjected to an electrical current.

The piezoelectric effect was discovered by Jacques and Pierre Curie in 1880; they found that certain crystals could produce electricity when mechanically stressed or compressed at room temperature. These crystals were also found to reverse this process: applying a voltage across them could cause them to bend or shrink in size–a property known as pyroelectricity (pyro meaning “heat”).

Piezo elements are made of ceramic, glass or other materials that expand when they’re subjected to an electrical current.

Piezo elements are made of ceramic, glass or other materials that expand when they’re subjected to an electrical current. The material is usually a piezoelectric ceramic (such as lead zirconate titanate). Piezo elements can be used to trigger sound effects in musical instruments and toys, as well as control the speed of motors and fans.

They can generate a large amount of force from a small amount of energy, which makes them useful in many devices.

Piezoelectric elements are produced by applying pressure to a piezoelectric material. When you press on a piezo element, it creates an electrical charge that can be used to power other devices. These elements have many applications and can be found in everyday devices like digital cameras and cell phones, as well as musical instruments like guitars and pianos.

A piezoelectric generator converts mechanical energy into electricity, and vice versa.

A piezoelectric generator converts mechanical energy into electricity, and vice versa.

Piezoelectricity is the generation of electric charge when mechanical stress is applied to certain crystals. Piezoelectric generators use a mechanical force to create an electrical current, and vice versa. They are used in many devices, including ultrasound machines and electric guitars.

For example, if you put pressure on the material it expands, creating voltage changes in the ceramic material inside, which causes an electrical charge to be generated. The reverse is also true; if there is a voltage change on the material itself, it will cause the material to bend or vibrate at a faster rate – this creates mechanical energy as well as producing small voltages and currents through piezoelectricity.

Piezoelectricity is the conversion of mechanical energy into electrical energy and vice versa. A piezoelectric generator is used in many devices, including watches, computers and mobile phones. When you press a button on your phone or type on the keyboard, piezoelectric crystals generate an electrical charge that powers up the device’s processor.

In other words: when you put pressure on something (like squeezing) it expands – creating voltage changes in the ceramic material inside which causes an electrical charge to be generated; reversely when there is a change in voltage on this material itself it will cause bending or vibrating at a faster rate – this creates mechanical energy as well as producing small voltages and currents through piezoelectricity

Piezoelectricity is responsible for converting mechanical energy into electricity and vice versa

Piezoelectricity is responsible for converting mechanical energy into electricity and vice versa. It’s a phenomenon observed in certain materials, including ceramics, glasses and polymers. When you apply a mechanical stress on these materials (such as applying pressure or flexing the material), they produce an electric field that can be used to generate power. This phenomenon can be used in many different applications ranging from washing machines to musical instruments!

In order for piezo element to work properly, there must be two types of polarization: positive and negative polarizations within each molecule of material being used for making your piezo element. When you apply an electrical current across these polarized molecules they will expand outwardly due to their natural tendency towards arranging themselves parallel with each other when exposed to heat or pressure; this causes them to expand outwardly at high speeds which generates vibrations similar those found in earthquakes – hence why these devices are sometimes referred to as seismic sensors!


Piezoelectricity is a fascinating phenomenon that has many applications and implications for our world. From washing machines to musical instruments, piezo elements are everywhere!

How to Buy The Best Piezo Element

Piezo elements are a type of transducer that converts mechanical energy into electrical energy. Piezo elements are used in many applications, including musical instruments and tools. They can be found in a wide variety of forms including discs, strips and rings. The piezo element material depends on the type of application you are using it for.

What is a piezo element?

A piezo element is a device that converts electrical energy into mechanical energy. It’s made up of a ceramic material that generates electricity when it is compressed. Piezoelectricity was first discovered by French scientist Pierre Curie in 1880, but it wasn’t until 1921 when Polish scientist Zdzislaw Kucia discovered how this phenomenon could be used as an actuator for sound reproduction and transducers (sensors).

Since then, piezo elements have been used in many applications including speakers, microphones and brake pads among others.

Piezo elements are used for a wide variety of applications.

Piezo elements are used for a wide variety of applications. They can be found in microphones, speakers and other audio devices; they’re also used in sensors and switches. Piezo elements are even used in the automotive industry to provide the “click” sound when you turn off the ignition key on your car!

A piezoelectric material produces electricity when it is deformed (stressed). When you apply pressure to these materials they convert mechanical energy into electrical energy or vice versa.

How to choose the right piezo element?

The first thing you’ll need to do is choose the right material for your application. Piezo elements are made from different materials, and each type has its own set of benefits and limitations.

The most common types are:

  • Ceramic – These are typically used in high-voltage applications such as spark plugs or ignitions systems because they can withstand high voltages without breaking down over time like other materials might. They’re also resistant to corrosion by moisture or chemicals, making them ideal for use in harsh environments like marine engines where saltwater may be present in the atmosphere around them all day long (or night). On the downside, these elements tend to be more expensive than other options due to their specialized production requirements; even though ceramics are stronger than other kinds of piezos at high temperatures (like those found inside ovens), they still need special care during manufacturing so that no cracks form during firing which could lead them breaking apart later on down road after using less than usual force required when pressing against surface area being cleaned off dirt buildup from car parts like tires etc..

Tip 1 – Know the application you need.

The first tip is to know the application you need before you start looking for piezo elements. Don’t just buy the first thing that looks good, as this could mean wasting money on an element that doesn’t meet your requirements and therefore isn’t suitable for your application.

Similarly, don’t buy something too big or too small as it will be more expensive than necessary and may not fit into available space within your equipment’s housing (if applicable).

Tip 2 – Choose the right material for your application.

The second tip is to choose the right material for your application. Piezo elements are made from different materials, and each one has its own properties. For example, if you need a piezo element for high temperature applications (over 600 degrees Celsius), then choose a material that can withstand high temperatures such as silicon carbide or quartz crystal. On the other hand, if you need a piezo element for low temperature applications (below 400 degrees Celsius), then choose a material such as lead zirconate titanate or barium strontium titanate (BaSrTiO4).

Tip 3 – Consider the budget.

You should also consider your budget.

If you’re on a tight budget, consider buying a cheaper piezo element (they can be as low as $2). However, these will not be of the highest quality and may not last very long. If you have more money to spend on piezo elements then it might be worth investing in higher quality ones that will last longer and perform better.

The right piezo element can make a huge impact on your project, so do not rush in choosing it

You should not rush in choosing a piezo element for your project. Remember that the right piezo element can make a huge impact on your project, so it is important that you choose carefully.

  • Make sure that the piezo element is suited to your application: If you want to use it in an environment where there will be vibrations or shocks (such as on an ATV), then you need an ultra-rugged one; if on the other hand you will be using it in something like an electronic drum kit or musical instrument amplifier, then consider something with more sensitivity and lower impedance levels because these devices require higher frequency responses than most other industrial applications do.
  • Check whether any damage has occurred during shipping: Sometimes manufacturers ship their products without any packaging materials inside them which can lead them being damaged during transit by getting stepped on by someone carrying heavy luggage onto buses/trains etc., so always check before ordering if possible! If not then try asking customer service representatives about this issue first before buying anything online since they may offer some kind of compensation depending upon how severe their policy states such things as “shipping damage” vs “defective item.”


We hope that this article has helped you understand the basics of piezo elements, as well as how to choose the right one for your project. We know that it can be difficult to find the right piezo element in today’s marketplace, but we also know that if you follow our tips on choosing and using them correctly then there will be no problem at all!

Vote For Us

Exciting news! Karl Kruse has been nominated for the Electronic Distributor of the Year 2023 award by elektroniknet.de.

We’re proud to be recognized for our commitment to providing top-quality electronic products and exceptional consulting service. We would be honored to have your evaluation and support on this award competition. It only takes a few moments to cast your vote, and your support would mean the world to us.

To evaluate Karl Kruse Electronics, simply click the link  https://www.elektroniknet.de/distribution/distributor-des-jahres/) and follow the instructions. The voting is only available in German. Thank you for your support and for being a part of our journey as we continue to grow and serve our customers with excellence.



Individuals with lower blood oxygen concentration often require an oxygen concentrator to make breathing easier. Oxygen therapy is used to normalize the blood oxygen level during sleep, rest and activity. According to the American Thoracic Society (ATS), more than 1.5 million adults in the United States use supplemental oxygen to combat a variety of respiratory disorders. For most users, oxygen concentrators help improve their quality of life and increase their lifespan.

Early-model oxygen concentrators, however, were heavy and bulky, tethering patients to home or hospital, greatly impacting their ability to work, travel, or socialize. Newer models have incorporated more advanced (and smaller) components, so today’s portable oxygen concentrators (POCs) are smaller, lighter, and quieter than previous versions. They are easily transported and increase mobility for users, but their smaller footprints inherently increase the device’s heat density, increasing thermal load.

High-performance fans are required to cool temperature-sensitive components and efficiently remove waste heat. To meet modern POC design objectives, these fans must combine a compact design with high airflow and low noise operation.

Component kitting and assembly services


Oxygen concentrators operate in a manner similar to an air conditioning unit, but rather than compressing and conditioning the air to cool a building or vehicle, oxygen concentrators compress, condition, and purify the air to assist breathing. A POC intakes air through a motor, compresses that air, and moves it through two sieve beds and filters removing dust, pollen, pet hair, mites, and many other air contaminants that complicate breathing.

This is where the pressure drops, and nitrogen is released. The ambient air is collected at a ration around 20% oxygen and 80% nitrogen. After the compression and filtering process, the air is 90 to 95% oxygen. The purified, oxygen-rich air is then delivered to the patient via a nasal cannula or mask.

Portable oxygen concentrators can be powered by battery, electricity, or DC power. Weighing between 3 and 18 pounds, many can be carried in backpacks or pulled in carts. All POCs provide on-demand (pulse) flow oxygen delivery, and advanced models monitor the purity of the oxygen, allowing users to adjust delivery settings, flow rate and more.


POCs should maintain their internal temperature no matter the external environment to which they are subjected. The equipment often is used outdoors, and experiences fluctuations in temperature and humidity. Weather and extreme temperatures can impact significantly the equipment’s performance. If the battery exceeds the temperature limit, its charge could diminish quickly. In some cases, the overheated battery could cause the unit to power down completely, a dangerous situation for the user if they are not close to home. Even if the battery continues to power the POC, the oxygen concentrator will not produce oxygen when the temperature crosses the tolerance range. For most oxygen concentrators, the operating temperature threshold is 104°F (40°C).

Additionally, the equipment’s components also play a role in maintaining the unit’s operating temperature. Smaller, more compact POCs feature densely packed components. Crowding more electronics into a smaller footprint increases the heat flux density. As a result, cooling solutions with higher airflows are required to move heat away from temperature-sensitive electronics. Airflows of 40 CFM are required in most POC designs to adequately provide proper cooling. In addition, the cooling solution must offer low power operation to ensure it does not add to the thermal load as well.

The noise generated by the unit should also be considered. Low-noise POCs, whether used in hospitals, in the home or on the go, are preferable for most users, who often don’t wish to draw attention to the machine or cause a distraction for others. In addition, a loud POC can interfere with everyday activities like watching TV, reading a book, conversing with others, or sleeping. POCs require fans that operate under 40 decibels to ensure everyone’s comfort.

POCs also must withstand the wear and tear of daily use. Portability requires ruggedization, and all electronics in a POC must be able to handle shock and vibration from normal daily mobile use. Most POCs are not waterproof, but resistance to moisture and humidity are critical characteristics of the cooling solutions chosen for their design.


To meet these application demands while ensuring temperature-sensitive electronics remain cool, POCs often employ small DC fans. DC fans offer rugged and reliable operation with airflows well above 40 CFM and noise levels under 40 decibels — all at only 12V operation.

But not all DC fans are created equal. Fan manufacturers like Orion Fans sell and design advanced cooling solutions and value-added services for customers with unique problems. For example, Orion Fans recently developed a dual DC fan design for a POC manufacturer with a size constraint issue. The manufacturer was seeking a high-functioning miniature DC fan with a low height of under 20mm but was unable to find an off-the-shelf product from standard fan resellers and manufacturers. Orion Fans created a fan kit using two OD5015 Series DC fans assembled side by side.

At only 50mm x 50mm x 15mm, the OD5015 DC fans met the desired height clearance, and easily fit into the POC to cool electronics to ambient temperatures. Orion Fans assembled the fan kits using adhesive foam tape, leaving adequate spacing for vibration resistance and airflow.

In addition, Orion Fans also assembled two custom twisted leads with connectors. The wire leads are secured to stay in place, ensuring a proper connection for long-term operation. This value-added service lowered the POC manufacturer’s costs as well as reduced assembly time.


In addition, Orion Fans also assembled two custom twisted leads with connectors. The wire leads are secured to stay in place, ensuring a proper connection for long-term operation. This value-added service lowered the POC manufacturer’s costs as well as reduced assembly time.

Oxygen concentrators offer respiratory therapy by delivering necessary purified oxygen to users, and lightweight portable versions allow greater mobility for everyday activities and freedom to travel. As POC manufacturers continue to design smaller, lighter and quieter versions to meet this user demand, they will need to specify components, particularly for cooling solutions, that can address heat flux density. POC equipment’s footprint can vary significantly from one manufacturer to the next, and it will be increasingly difficult to find off-the-shelf fans and other cooling solutions that meet the system’s needs. Finding a fan manufacturer who offers design engineering and value-added services is an affordable, even cost-saving measure that will offer maximum flexibility in end-product design and end- user satisfaction.

New Franchise – Karl Kruse Adds Golledge to Authorized Portfolio with New Strategic Distribution Agreement

Karl Kruse is now an authorized distributor and design-in partner for Golledge throughout Germany and Europe.

As a global supplier of frequency control products, Golledge Electronics has been an industry leader for over 25 years. Every day, Golledge Electronics works with the world’s leading designers and manufacturers to create competitive RF products that are an integral part of their designs. Golledge Electronics’ broad product range includes all types of timing components including: Crystals, Oscillators, TCXOs, VCXOs, OCXOs, SAW and Crystal Filters, Duplexers and RTC Modules.

The products are used in a wide variety of areas in the electronics industry, such as telecommunications, satellites, microprocessors, aerospace, the automotive industry, instrumentation and medical applications.

Hi-Rel Fuses P600L

AEM, Inc. HRB Series Ferrite Chip Beads are manufactured in an AS9100 facility in the USA (San Diego, CA) and offer full material and process traceability. All components are manufactured with qualified materials and process systems and tested according to DSCC drawing 03024.


HRB Series beads are designed for mission critical applications. Capable of operating in harsh environments and extreme temperatures, these Hi-Rel chips are tin whisker free with Sn/Pb or Au terminations. A variety of EIA/EIAJ chip sizes from 0603 to 1206 are offered and feature nickel barrier terminations with a solder pad finish to ensure a reliable solder connection.



AEM, Inc. is the only US manufacturer of solid state current limiting fuses manufactured using thick film technology followed by testing and qualification for spacecraft/satellite applications. AEM, Inc.’s P600L series fuses have been selected by most major space programs and have been in orbit without failure for the past 35 years.


• Used in military and commercial satellites and spacecraft,including manned spacecraft

• Protection of power supplies, batteries and solar systems

• Isolation of redundant and branch circuits

• Short-circuit protection by fired squib and ejector circuit



  • Consistent clearing times achieved at overload currents regardless of vacuum conditions
  • Solid body construction without outgassing and not subjected to the de-rating factors of MIL-STD-975
  • Solid body construction capable of withstanding greater vibration and shock exposure without damage
  • Positive temperature coefficient of fuse element causing resistance to increase (prior to opening) thereby preventing absolute short to the power source
  • Internal construction ensuring that arc, plasma, and vapor are contained within the fuse package during overload current conditions
  • Groups A/B data supplied with each shipment and Group C inspection optional
  • High-reliability fuse series with over 29 million hours of life testing without a failure
  • Available as QPL Certified per MIL-PRF-23419/12

Introducing Geehy Semiconductor, an ST Micro Alternative with Shorter Lead Times

As an authorized distributor, Karl Kruse  has partnered with Geehy, in effort to provide seamless access to Geehy solutions worldwide including ST Micro Alternatives.

Geehy now brings over 20 years of experience in the development of application-specific semiconductor Geehy is a professional supplier of products and solutions for the industrial-grade general MCU, BLE SoC, and domestic leading IIoT SoC-eSE security SoC.

Geehy is committed to providing higher quality products and services in industrial control, consumer electronics, medical equipment, smart home, and automobile application.

Products & Solutions: 


✓ APM32 Microcontrollers – Achieve competitive advantage

  • ARM® Cortex®-M7
  • ARM® Cortex®-M3
  • ARM® Cortex®-M0+ 

✓ BLE SoC – Fully upgraded transmission performance

  • BLE 5.1
  • BLE 4.2

✓ Dachuan Series SoC – Based on the T-head CPU cores

  • GS300
  • GS400
  • GS500

✓ Security SoC Platform – Ensure the security of internet information

As a licensee of ARM, the microcontrollers of the APM32 series are based on Cortex-M0+, Cortex-M3 and Cortex-M4 (with FPU) cores. For applications requiring high performance, Cortex-M7 based controllers are under development. In addition to this architecture, RISC-V and T-head cores are also in the focus of development.

The overview on the left shows Geehy’s current product portfolio.



In addition to the standard microcontrollers already mentioned, which were introduced to the market in the period 2019 to 2021, 2022 shows that Geehy is now concentrating in the low-power, automotive as well as motor control areas.

Introducing Geehy Semiconductor, an ST Micro Alternative with Shorter Lead Times | Request Cross Reference &  Samples.

Have you become interested? Our team will be happy to advise you in detail about currently available derivatives and packages.

Call +49 211 27403530

us or send us an enquiry  to info@kruse.de

Sourcing The Correct Display

Displays play an active role in all environments of our lives – at home, in the workplace, when travelling, and in leisure venues.

Electronic displays provide visual information and data, to be easily consumed by the target audience. There are many different types of displays technology available, but what do you need to consider when selecting the correct display for a specific application?

Application value – if your application is being designed with a high-end price point, you may need to consider a high-quality display to match the application design. For example, a TFT display with IPS technology (for high quality all-round viewing angles), and high brightness, will ensure that the product looks impressive visually.

Type of information – a simple character LCD or OLED may be appropriate for displaying a basic level of information, such as a security panel simply stating ‘armed’. However, if you want to promote something you are going to want an eye-catching display, such as a TFT which provide a full colour, graphic, image or video.

Environment – If the application is going to be outdoors, you will need to consider how the display will perform in direct sunlight. There are reflective displays that work well in this situation and modules that can be enhanced to cope with such environments. Also, extreme temperatures can cause displays to experience failure or issues, and some technologies can cope better in harsh, cold, or hot, temperatures.

Enhancement – if the product requires some form of user interaction, you may consider touch screen technology. TFT technology is most suited for touch screen applications, with some OLEDs also capable. Displays can also be enhanced in many ways, such as adding cover glass which can improve a displays durability, and sunlight readability.

Budget – display technologies vary in cost. Monochrome LCDs tend to be the best option for a low-cost application that needs to display basic character or graphic information. TFTs would be the most expensive option, however, this comes down to the specification required. Smaller, less technical TFTs have become more economical as the technology has developed over time.

When all the above has been considered, you will be in a good position to select the appropriate technology. Below is a brief breakdown of the four main display technologies.

Monochrome LCD

This technology is the oldest technology, but it certainly still has a valuable role to play in the market. These displays are easy to interface, with simple character and graphic options available. They are most used in low-cost applications, such as fire and security panels.


TFT display technology is improving all the time. These displays cover a huge range of the market and are generally considered the most ‘premium product’. High bright displays, IPS all-round viewing angles, touch screen technology, and high-definition resolutions are just a few of the key features.


A simple way to describe this technology would be a much-improved LCD, although the display is a completely different technology. They have brighter text/graphics on a true black background and are viewable from all angles.


This is a relatively new technology which is ideal for ultra-low power applications. The bi-stable technology enables the display to retain the image, even when the power is disconnected. The most recognisable application for this technology now is shelf-edge labelling.

Contact Karl Kruse at Schirmer Strasse 59, 40211 Düsseldorf
by phone at + 49-211 27403530, e-mail to info@kruse.de or in the shop at www.kruse24.com.

Megawin MCU provide Flash memory from 4KB to 132KB with competitive price and good quality

Megawin Technology was formed by a group of IC design and sale specialists in 1999. The company’s mission is to become the worldwide MCU supplier through nonstop research & development and patent portfolio plan.

Megawin 8bit 8051 MCU and 32bit Cortex M0 MCU , which are widely used  for the application such as Telecom, Instrument equipment and lots of controller requirement.

Item                 Flash memory size

—————–     ————————————–

MG82F6D17     16KB ,      8bit 8051 MCU

MG82F6D32     32KB ,      8bit 8051 MCU

MG82F6D64     64KB ,      8bit 8051 MCU

MG32F02A032    32KB  , 32bit M0 MCU

MG32F02A064   64KB ,   32bit M0 MCU

MG32F02A128  128KB ,  32bit M0 MCU

MG32F02U128   128KB , 32bit M0 USB MCU

MG32F02U064     64KB , 32bit M0 USB MCU

Reverse Logistics

The reverse logistics applies to all operations related to the reuse of products and materials. It is “the process of moving goods from their typical final destination for purposes of valuation or proper disposal”.

Reverse logistics is a long-overlooked element in the consumer electronics fulfillment cycle. While the forward logistics commands are focused (the flow of product from the factory to the end user), the reverse logistics takes place after a product has reached the customer

Karl Kruse reverse supply chain logistics include:

  • Disposal of IT assets: Global, secure and compliant disposition services for IT assets at the end of their life, including deletion and disposal of data, recycling and re-marketing of systems and components.
  • Electronic Components Distribution: Electronic components distribution, Electronic components sourcing service and quality control programs based on extensive testing capabilities, integrated systems, industry information, and a global market presence.
  • Product returns management: Value recovery through our asset distribution and the re-marketing of materials back into the global supply chain.
  • Service Spare Parts Management: Optimizing inventory and reducing the risk of excess spare parts using our planning processes to improve serviceability and overall sales.