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Varistors ideal for commercial, industrial, and automotive apps

Thu, 04/18/2013 - 4:31pm

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AVX Corporation has added several new varistors to its trusted TransGuard and TransGuard Automotive Series. Based on AVX’s reliable zinc-oxide varistor technology, the extended TransGuard series provide customers with a much broader range of voltage and energy rating options than were previously available, significantly expanding both the number and type of applications for which the series are an ideal solution. 

Both AVX’s TransGuard and TransGuard Automotive series varistors 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. The two TransGuard series also feature non-linear, bi-directional voltage-current characteristics similar to those of back-to-back zener diodes, but with the added advantage of greater current and energy-handling capabilities, as well as EMI/RFI attenuation. Lead-free and RoHS compliant, both series are designed for use in temperatures ranging from -55°C to +125°C.

AVX’s TransGuard and TransGuard Automotive Series varistors exhibit a peak current up to 2000A, transient energy up to 12J, and low leakage currents under standard DC operating conditions.  Both series are also available with Ni/Sn-plated terminations for lead free soldering or with Pd/Ag terminations for hybrid assembly. 

TransGuard Series varistors are available in 0201 to 2220 surface-mount case sizes, as well as with radial and axial leads.  Exhibiting a working voltage range of 3.3–85VDC, the series is ideal for a wide range of professional, industrial, and commercial applications. 

TransGuard Automotive Series varistors are available in 0402 to 2220 surface-mount case sizes, as well as with radial leads.  Featuring a working voltage range of 5.6-85VDC, the AEC-Q200-qualified series exhibits high current and high energy handling capabilities, multi-strike capability, and 1nS response to ESD strikes, which makes it extremely well-suited for protecting against automotive transients in wide range of applications, including: safety devices (airbags, ABS, etc.), body electronics (ECU, sensors, etc.), drive train (water pump, power steering, etc.), comfort and convenience (electric mirror, audio, etc.), and hybrid and electric engines (engine start/stop, electric drive, etc.). 

For more information about AVX, please visit www.avx.com

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