Surge Supression Devices Protect High-End Electronics
Tyco Electronics expanded its Raychem SiBar thyristor series. The bi-directional transient voltage surge suppressors are now available in from 6V to 400V, with capacitance as low as 12pF, maximum leakage current of only 2µA, and a minimum hold current of 150mA. Other features include a small form factor, low on-state power dissipation, and foldback voltage shunting. On the standards front, SiBar thyristors are compliant with RoHS, GR-1089 Core, ITU K.20/K.21, IEC61000-4-5, FCC part 68, and UL60950, at rates such as 50A, 80A, and 100A (10/1000µs). The devices are housed in surface-mount SMB (JEDEC DO-214AA) and SMA (JEDEC DO-214AC) package options, and are useful for analog and digital linecards, xDSL and ISDN modems, set-top boxes, and T1/VoIP equipment. Prices range from $0.15-$0.42 each in volumes of 10,000.