ProTek Devices Introduces First-Ever Hybrid Semiconductor Circuit Protection Devices – EEJournal

The company’s hybrid semiconductor solutions are patent pending and will target circuit protection in common household and industrial applications as ideal replacements for surface mount MOVs.

TEMPE, Ariz. – September 13, 2022 – ProTek Devices has introduced hybrid semiconductor technology that is the company’s first ever for circuit protection in common industrial and household applications such as power adapters, household appliances , industrial automation controls, smart meters and other critical applications. New patent-pending technology makes the new devices ideal replacements for high-end surface-mount metal-oxide varistors (MOVs).

ProTek Devices’ new hybrid transient voltage suppression components (TVS component) offer several unique benefits. They offer a more robust product in a small form factor that does not use the wear mechanism present in gas discharge tubes (GDTs) and MOVs. Therefore, the operational life and reliability are significantly extended. The new components, the PHYTVSxxxV3 and PHYTVSxxxV4 series, provide a reliable surge solution when lower blocking voltage is required. Each series is made up of three component offerings.

Both series are compatible with IEC 61000-4-5 (overvoltage). However, the PHYTVSxxxV3 is class LL 2, for 500V 1.2/50 microseconds – Req = 2 ohm, i.e. 250A 8/20 microseconds, and the PHYTVSxxxV4 is class 3, 1kV 1.2/50 microseconds – Req = 2 ohm, or 500A 8/20 microseconds. Both also feature bi-directional operation for 50/60/400Hz AC lines. Additionally, both series are available for SMT reflow soldering, have an operating temperature of -55 to +125 degrees Celsius, and are RoHS and REACH compliant.

The PHYTVSxxxV3 and V4 series also meet and exceed IEC 61000-4-2 (ESD): Level 4 Air plus or minus 15 kV, contact plus or minus 8 kV and IEC 61000-4-4 (EFT): 40 A.

Mechanical details and availability information

Both series come in a DFN-2-KW package. The PHYTVSxxxV3 has an approximate weight of only 2.5 grams and the PHYTVSxxxV3 is only 0.75 grams. The PHYTVSxxxV3 has a form factor compatible with SMT 3225. Other mechanical features include lead-free tin plating for the PHYTVSxxxV3 and lead-free silver plating for the PHYTVSxxxV4. They both have a solder reflow temperature of (260-270 degrees Celsius, 10 seconds. Finally, both series have a flammability rating of UL 94V-0. A datasheet for the PHYTVSxxxV3 is available here and for the PHYTVSxxxV4 is available here.

Both series of hybrid TVS components are available on 12mm tape and reel, conforming to EIA 481, in minimum quantities of 1,000. Pricing information and purchase details can be obtained by contacting any any authorized worldwide distributor or representative or directly with ProTek Devices. These trading resources are available throughout North America, Europe, Asia, South America, and more. Full contact information for all regions is available on the company’s website.

ProTek Devices circuit protection components include transient voltage suppressors, TVS diodes, TVS arrays of steering diodes, and other modules and components. They are used worldwide in many applications to guard against various electrical transients and high voltage spikes that can damage electronic investments. This includes aerospace subsystems, automotive subsystems, computer interfaces, consumer electronics, industrial and instrumentation equipment, medical devices, military subsystems, and networking and communications equipment.

About ProTek Devices

In business for over 30 years, ProTek Devices™ is a privately held semiconductor company. It offers a complete line of circuit protection devices. Its transient voltage suppressors (TVS array), steering diode TVS arrays, component modules, etc., are widely used around the world. Consumer brands and many other companies use them to improve security and protect the investments they make in electronic designs, from industrial to consumer products. Circuit protection is provided against lightning; electrostatic discharge (ESD); Electrical Fast Transients (EFT), Nuclear Electromagnetic Pulses (NEMP); inductive switching; electromagnetic interference / radio frequency interference (EMI / RFI), and more. ProTek Devices is based in Tempe, Arizona. Distributors and sales representatives are available in the United States, Europe, Asia, Latin America, etc. Additional information is available at

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