AVX Adds Several New Varistors To Its Trusted Transguard & Transguard Automotive Series

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.

“Demonstrating only negligible degradation in breakdown voltage and minimal increases in leakage current after repeated high-current pulsing, TransGuard Series varistors consistently outperform the competition and have thus been very well-received,” said Jiri Machanicek, Technical Marketing Manager at AVX. “Consequently, AVX has extended both series with additional voltage and energy rating options designed to provide an even broader range of applications with trusted transient voltage suppression solutions.”

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 applications (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 vehicles (engine start/stop, electric drive, etc.).