DO-214AB surface-mount — field-swap reality
The 1.5SMC300: Unidirectional (one channel) — the cathode band marks the grounded side; reverse the part and it conducts at the forward voltage of a standard diode, not at the TVS breakdown voltage.
1.5SMC300 Littelfuse TVS Diode, 1500W, DO-214AB
MPN1.5SMC300
Obsolete
Littelfuse Inc. 1.5SMC series Zener TVS diode, 1.5SMC300, 1500W peak pulse power, 256V reverse standoff, 434.7V clamping, unidirectional, DO-214AB SMC surface mount package.
$0.8700Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | 1.5SMC |
| Mounting | Surface Mount |
| Voltage - breakdown | 270V |
| Voltage - clamping (Max) @ ipp | 434.7V |
| Voltage - reverse standoff | 256V |
| Current - peak pulse (10/1000μs) | 3.7A |
| Power - peak pulse | 1500W (1.5kW) |
| Power line protection | No |
| Operating temperature | -55°C ~ 150°C (TJ) |
| Package | Tape & Reel (TR) |
| Applications | General Purpose |
| Case | DO-214AB, SMC |
| Unidirectional channels | 1 |
Product details
Frequently asked questions
Where can I buy the 1.5SMC300?
Submit an RFQ for current availability and pricing — quantities are confirmed at quote time.