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| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
10,000 pcs
|
10000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| AEC Qualified | |
| Applications | |
| Automotive Grade | |
| Current | |
| Mounting Type | |
| Operating Temperature | |
| Power | |
| Power Line Protection | |
| Reverse Standoff Voltage | |
| Supplier Device Package | |
| Tape & Reel | |
| Type | |
| Unidirectional Channels | |
| Voltage |
The SM4T14AY is a unidirectional Zener TVS diode designed by STMicroelectronics for automotive applications. It features a reverse standoff voltage of 12V and a clamping voltage of 25.3V, providing robust protection against voltage transients. With a peak pulse power rating of 400W and a peak pulse current of 91A (8/20µs waveform), this device is suitable for suppressing high-energy surges in automotive electronic systems.
This TVS diode is housed in a surface-mount DO-214AC (SMA) package, enabling compact PCB designs. It operates over a junction temperature range of -55°C to 150°C, ensuring reliable performance in harsh automotive environments. The component is not intended for power line protection, focusing instead on signal and data line transient suppression.
Designed to meet the rigorous demands of automotive electronics, the SM4T14AY offers a balance of high surge capability and small footprint. Its Zener technology provides precise voltage clamping, making it a suitable choice for protecting sensitive circuits in vehicles, including engine control units, infotainment systems, and sensor interfaces.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.97 | $0.97 |
| 10+ | $0.61 | $0.61 |
| 100+ | $0.39 | $0.39 |
| 500+ | $0.30 | $0.30 |
| 1,000+ | $0.26 | $0.26 |
| 2,500+ | $0.23 | $0.23 |
| 5,000+ | $0.21 | $0.21 |
| 10,000+ | $0.20 | $0.20 |
| 25,000+ | $0.19 | $0.19 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The reverse standoff voltage is 12V.
The clamping voltage is 25.3V.
The peak pulse current is 91A under an 8/20µs waveform.
It is available in a surface-mount DO-214AC (SMA) package.
Yes, it is specifically designed for automotive applications.
The junction temperature range is -55°C to 150°C.