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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 SM4T30AY is a unidirectional transient voltage suppression (TVS) diode manufactured by STMicroelectronics. It is designed to protect sensitive electronic circuits from voltage transients induced by lightning, inductive load switching, and electrostatic discharge. The device features a reverse standoff voltage of 26V and a clamping voltage of 53.5V, ensuring that downstream components are not exposed to damaging overvoltage conditions.
This TVS diode is rated for a peak pulse power dissipation of 400W and can handle a peak pulse current of up to 43A under an 8/20µs waveform. It is a single-channel unidirectional device and is not intended for power line protection. The SM4T30AY is qualified for automotive applications, making it suitable for use in harsh environments where reliability is critical.
The component is housed in a standard DO-214AC (SMA) surface-mount package, which facilitates automated assembly and saves board space. It supports an operating junction temperature range of -55°C to 150°C, allowing for use in a wide variety of thermal conditions. The SM4T30AY is RoHS3 compliant and REACH unaffected.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.12 | $1.12 |
| 10+ | $0.81 | $0.81 |
| 100+ | $0.52 | $0.52 |
| 500+ | $0.40 | $0.40 |
| 1,000+ | $0.36 | $0.36 |
| 5,000+ | $0.35 | $0.35 |
| 10,000+ | $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 26V.
The clamping voltage is 53.5V.
The peak pulse power rating is 400W.
The peak pulse current is 43A under an 8/20µs waveform.
The SM4T30AY is available in a DO-214AC (SMA) surface-mount package.
Yes, the SM4T30AY is specified for automotive applications.
The operating junction temperature range is -55°C to 150°C.