Power Electronics
High-Power TVS Diodes for AC and DC Power Line Applications

High-Power TVS Diodes for AC and DC Power Line Applications

Bourns, Inc. announced the introduction of new high Power TVS diode models in SMD packaging for use in AC and DC power line applications. The new models feature high current bidirectional port protection meeting IEC 61000-4-5 8/20 µs current surge requirements and are RoHS* compliant. Designated Bourns® Models PTVS15-058C-SH and PTVS15-076C-SH, these Power TVS diodes offer enhanced performance stability and increased reliability. Designed using advanced silicon technology Bourns' new devices deliver lower clamping voltage under surge compared to Metal Oxide Varistor (MOV) technology. The SMD package provides a 20% reduction in peak clamping voltage compared to an equivalent through-hole device because of its lower lead inductance. The result is reduced electrical stress on the protected circuitry. Additionally, the SMD package simplifies assembly and can reduce costs by eliminating the extra design requirements in cases where the Power TVS diode is the only through-hole component on the printed circuit board.

Bourns' new Power TVS diode models also exhibit an excellent surge response versus temperature, with a maximum surge current rating at 150 °C, which is 70% of their rated value at 25 °C. Both models provide very high surge current protection with a peak pulse current rating of 15 kA. The Bourns® Model PTVS15-058C-SH features a 58 V standoff voltage and the Bourns® model PTVS15-076C-SH has a 76 V standoff voltage.

As a pricing reference, the Bourns® models PTVS15-058C-SH and PTVS15-076C-SH are priced at $19.70 each in 10 piece quantities and $17.50 each in 500 piece quantities respectively. Both models are available now.

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