Power Electronics
Image courtesy of ProTek Devices

(Image courtesy of ProTek Devices).

Steering Diode/TVS Array Covers Circuit Protection

ProTek Devices introduced a new ultra-low capacitance steering diode / transient voltage suppressor array (TVS array) designed to deliver circuit protection in Gigabit Ethernet applications, smartphones, video card interfaces and more. The ultra-low capacitance for this new component, the PAZC099, is 0.9pF. The PAZC099 is rated for 5.0V applications with 100 watts peak pulse power per line (8/20 µs). It's also ideal for circuit protection in USB 1.0, 2.0 and 3.0 applications, DVI interfaces and other portable electronics.

The PAZC099 provides surge suppression and electrostatic discharge (ESD) protection in these high-speed data line applications. ESD protection is > 25 kilovolts. It combines eight ultra-low capacitance steering diodes for up to four individual data or transmission lines. It has one TVS diode for the power bus. This device meets or exceeds various IEC standards: 61000-4-2 (ESD): air 15kV, contact 8kV; 61000-4-4 for electrical fast transients (EFT): 40A, 5/50ns; and 61000-4-5 (surge). In addition, the PAZC099 provides a low clamping voltage and is RoHS and REACH compliant.

The part is offered in a space-saving SOT-23-6 package configuration. The small package size minimizes lead inductance, preventing overshoot voltages during high ESD current events. ProTek Devices recommends the PAZC099 be mounted near the connector on the PCB. The approximate weight of the component is just 16 milligrams. Other key mechanical characteristics include lead-free nickel palladium gold plating and a UL 94V-0 flammability rating. The solder reflow temperature (nickel-palladium-gold: Ni/Pd/Au, 96/3.5/0.5) is 260 to 270 °C. Operating and storage temperature is -55 to 150 °C.

ProTek Devices' PAZC099 is available in mass quantities. Pricing varies by amounts starting at a minimum 3,000 components provided in 8mm tape and reel, per EIA standard 481.

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