Vishay General Semiconductor - Diodes Division, 1.5SMC TransZorb® series, TVS Zener diode, bidirectional, 1500W peak pulse, 43.6V standoff, 70.1V clamp, DO-214AB SMC package, Tape & Reel.
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | 1.5SMC, TransZorb® |
| Mounting | Surface Mount |
| Voltage - breakdown | 48.5V |
| Voltage - clamping (Max) @ ipp | 70.1V |
| Voltage - reverse standoff | 43.6V |
| Current - peak pulse (10/1000μs) | 21.4A |
| Power - peak pulse | 1500W (1.5kW) |
| Power line protection | No |
| Operating temperature | -65°C~150°C(TJ) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Applications | General Purpose |
| Case | DO-214AB, SMC |
| Bidirectional channels | 1 |
The 1.5SMC51CA-E3/57T: Bidirectional construction (one channel) protects signal pairs or AC lines where the transient polarity is unknown, common in telecom and industrial I/O ports. The DO-214AB (SMC) surface-mount package handles the 21.4 A peak pulse current without exceeding the 150 °C junction limit.
This is the standard telecom surge waveform per IEC 61000-4-5; the 21.4 A peak pulse current is the corresponding current at the 70.1 V clamping voltage.