Product category:
Circuit Protection Devices
News Release from: AVX | Subject: StaticGuard
Edited by the Electronicstalk Editorial
Team on 15 February 2008
Varistors protect in less space
Multilayer ceramic devices feature nonlinear bidirectional voltage-current characteristics similar to back-to-back Zener diodes and an EMC capacitor in parallel.
StaticGuard multilayer ceramic transient voltage suppressors from AVX Corp are designed to provide ESD protection for CMOS, bipolar and SiGe devices The voltage suppressors meet 15kV ESD pulse (air discharge) per IEC1000-4-2, Level 4, generating less than 20mJ of energy
This article was originally published on Electronicstalk on 27 Jan 2004 at 8.00am (UK)
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It is particularly important to protect ICs against ESD as the typical failure voltage for CMOS and bipolar is under 200V.
The zinc-oxide (ZnO) based, multilayer ceramic StaticGuard devices are varistors that feature nonlinear bidirectional voltage-current characteristics similar to back-to-back Zener diodes and an EMC (electromagnetic compatibility) capacitor in parallel.
By effectively integrating this functionality into a single device the varistors require significantly less PCB real estate.
They also have the added advantage of greater current and energy handling capabilities as well as EMI/RFI attenuation.
StaticGuard specifications include a DC working voltage of less than 18V, AC working voltage of under 14V, clamping voltage of 50V, versions with capacitances of 40, 50, 80 and 200pF, peak current rating of 15A for the VC04LC18V500 and 30A for the others, an axial leaded device and SMD case sizes of 0402, 0603, 0805, and 1206.
Low capacitance makes these devices ideal for high-speed data transmission, and low leakage current of 10uA maximum ensures that battery operated equipment maximises battery performance. Request a free brochure from AVX ...
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