The 1.5SMC33AHM3_A/H is a single-direction Zener TVS diode from Vishay's automotive-grade 1.5SMC TransZorb series.
The cathode band marks the unidirectional polarity; reverse insertion defeats the clamping function.
Vishay 1.5SMC33AHM3_A/H TVS, 28.2V Standoff, 45.7V Clamp
MPN1.5SMC33AHM3_A/H
Active
Vishay General Semiconductor, Automotive AEC-Q101 1.5SMC TransZorb series, Zener TVS diode, 1.5SMC33AHM3_A/H, 1500W peak pulse, 28.2V reverse standoff, DO-214AB SMC package, Tape & Reel.
$0.3331Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | Automotive, AEC-Q101, 1.5SMC, TransZorb® |
| Mounting | Surface Mount |
| Voltage - breakdown | 31.4V |
| Voltage - clamping (Max) @ ipp | 45.7V |
| Voltage - reverse standoff | 28.2V |
| Current - peak pulse (10/1000μs) | 32.8A |
| Power - peak pulse | 1500W (1.5kW) |
| Power line protection | No |
| Operating temperature | -65°C~150°C(TJ) |
| Package | Tape & Reel (TR) |
| Applications | Automotive, Telecom |
| Case | DO-214AB, SMC |
| Unidirectional channels | 1 |
Product details
Frequently asked questions
What is 1.5SMC33AHM3_A/H's clamping voltage at peak pulse current?
The reverse standoff voltage is 28.2 V, meaning the rail should stay below this level during normal operation.
What compliance documentation does Vishay provide for 1.5SMC33AHM3_A/H?
As an AEC-Q101 qualified automotive part, Vishay provides a PPAP (Production Part Approval Process) package, RoHS compliance data, and a 100% surge-tested lot certificate upon request. The part is also REACH compliant.