For protecting automotive infotainment peripherals, i.e., global positioning systems, smart phones, game consoles, portable media players, etc., two additions to the PolyZen line of precision Zener diode micro-assemblies specify a higher hold current at 2.3A. The components employ a Zener diode for voltage clamping and a resistively non-linear, polymer positive temperature coefficient (PPTC) layer that responds to either diode heating or over current events by transitioning from a low to high resistance state. To shield downstream electronics from over voltage and reverse bias, they clamp and smooth inductive voltage spikes. Additionally, high-power absorption capabilities protect against faults that occur in the event of an incorrect or misconnected power supply. All PolyZen components are compatible with industry-standard installation procedures and available in tape-and-reel packaging. Pricing is $0.45 each/100,000. TYCO ELECTRONICS LTD., Menlo Park, CA. (800) 227-7040.
Company: TYCO ELECTRONICS LTD.
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