600 W bidirectional transient suppressor in SMB
It delivers 600 W peak pulse power (10/1000 µs waveform) with a reverse standoff voltage of 5.8 V and a maximum clamping voltage of 13.4 V at the peak pulse current of 298 A (8/20 µs waveform). The single bidirectional channel protects against both positive and negative surges, making it suitable for applications where the protected line swings above and below ground.
Voltage window and clamping performance
Breakdown occurs at a minimum of 6.45 V, and the clamping voltage is held to 13.4 V maximum under the rated pulse current — a tight window that limits stress on downstream silicon. The 298 A peak pulse current rating (8/20 µs) gives substantial surge-handling margin for industrial and telecom line protection.
Bidirectional vs unidirectional — one part for both polarities
This eliminates the need for two unidirectional TVS diodes in anti-series on AC signal lines or data pairs that swing bipolar. For a 5 V rail that never goes negative, a unidirectional part like the SM6T6V8A (same family, unidirectional) would be the alternative, but the bidirectional version simplifies BOM and board area when polarity is unknown or bidirectional.