Glass-Encapsulated Varistors have 2,000 A peak rating.

Press Release Summary:

TransGuard® Series multilayer varistors are available in 16, 34, and 65 Vdc models and 42, 44, 77, and 135 V clamping voltages, while Automotive TransGuard® Series varistors come in 42, 77, and 135 V clamping voltages. Featuring sub 1 nsec response to ESD strikes, both monolithic multilayer units are rated for use in -55 to +125°C temperatures and provide bidirectional overvoltage protection and EMI/RFI attenuation. Products come in 1210, 1812, and 2220 case sizes.

Original Press Release:

AVX'S New Glass-Encapsulated Varistors Provide Advanced Circuit Protection in Harsh Commercial, Industrial, & Automotive Applications

The latest additions to AVX's TransGuard® & Automotive TransGuard® Series varistors extend bi-directional over-voltage protection & EMI/RFI attenuation benefits to high energy & harsh environment applications

GREENVILLE, S.C. -- AVX Corporation, a leading manufacturer of advanced passive components and interconnect solutions, has expanded both its TransGuard® and Automotive TransGuard® Series multilayer varistors to include glass-encapsulated, acid-resistant parts for use in high energy and harsh environment commercial, industrial, and automotive applications.  Exhibiting non-linear, bi-directional, V-I characteristics, both zinc-oxide-based ceramic semiconductor device series provide bi-directional over-voltage protection and EMI/RFI attenuation in a single SMT package.  The series also feature multi-strike capability, sub 1nS response to ESD strikes, and excellent solderability.   

"The TransGuard® and Automotive TransGuard® varistor series feature a unique, high-energy, monolithic multilayer construction that provides state-of-the-art circuit protection from voltage transients caused by ESD, lightning, inductive switching, automotive related transients, and other disruptions," said Jiri Machanicek, technical marketing manager at AVX.  "With the addition of the high energy, glass-encapsulated options, an even broader range of applications can take advantage of the series' advanced, high-reliability circuit protection capabilities." 

Ideal for use in harsh environments - such as those utilizing acid, salt, or chlorite flux - AVX's glass-encapsulated TransGuard® and Automotive TransGuard® Series varistors are available in three case sizes (1210, 1812, and 2220), four energy ratings (spanning 2-12J) and feature a peak current rating of up to 2000A.  Both series also have Ni/Sn-plated terminations, are RoHS compliant, are rated for use in temperatures spanning -55°C to +125°C, and are packaged on 7" or 13" reels. 

TransGuard® Series varistors are available in four working voltages (16, 22, 28, and 65VDC), four clamping voltages (42, 44, 77, and 135V), and can be employed in a range of professional, industrial, and commercial applications, including: IC protection, DC motor protection, relays, controllers, sensors, smart grids, and alarms, among others. 

Available in four working voltages (16, 34, and 65VDC) and three clamping voltages (42, 77, and 135V), Automotive TransGuard® Series varistors exhibit high current and energy handling capabilities, are AEC-Q200-qualified, and are ideal for use in a variety of automotive applications typical of internal combustion, hybrid electric, plug-in hybrid electric, and commercial vehicles.  The series can also provide advanced circuit protection in sensor, relay, LIN BUS, ECU, and DC motor applications. 

For more information about AVX, please visit, call 864-967-2150, or write to One AVX Boulevard, Fountain Inn, S.C. 29644.

About AVX

AVX Corporation is a leading international supplier of electronic passive components and interconnect solutions with 26 manufacturing and customer support facilities in 15 countries around the world. AVX offers a broad range of devices including capacitors, resistors, filters, timing and circuit protection devices and connectors. The company is publicly traded on the New York Stock Exchange (NYSE:AVX).

For more information, contact:

Jiri Machanicek

Technical Marketing Manager, AVX

+420 575757-161

More from Mechanical Power Transmission

All Topics