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| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
5,000 pcs
|
5000 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 | |
| Supplier Device Package | |
| Tape & Reel | |
| Type | |
| Unidirectional Channels | |
| Voltage | |
| Voltage - Breakdown (Min) | |
| Voltage - Reverse Standoff (Typ) |
The SM4T47AY is a unidirectional Zener TVS diode designed for automotive applications. It features a reverse standoff voltage of 40V and a minimum breakdown voltage of 44.4V. The device clamps transient overvoltages to a maximum of 84V at a peak pulse current of 27A (8/20µs waveform).
With a peak pulse power rating of 400W, this diode provides robust protection against voltage transients in automotive electronic systems. It is not intended for power line protection, focusing instead on signal and low-power supply lines.
The SM4T47AY is housed in a surface-mount DO-214AC (SMA) package, suitable for automated assembly. It operates over a wide temperature range of -55°C to 150°C, making it reliable in harsh automotive environments.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.50 | $1.50 |
| 10+ | $0.95 | $0.95 |
| 100+ | $0.63 | $0.63 |
| 500+ | $0.49 | $0.49 |
| 1,000+ | $0.43 | $0.43 |
| 2,500+ | $0.37 | $0.37 |
| 5,000+ | $0.35 | $0.35 |
| 25,000+ | $0.33 | $0.33 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The reverse standoff voltage is 40V.
The maximum clamping voltage is 84V at peak pulse current.
The peak pulse current is 27A for an 8/20µs waveform.
It comes in a DO-214AC (SMA) surface mount package.
Yes, it is specifically designed for automotive applications.
The operating temperature range is -55°C to 150°C.