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| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
25,000 pcs
|
25000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Manufacturer Name | |
| Applications | |
| Bidirectional Channels | |
| Current | |
| Mounting Type | |
| Operating Temperature | |
| Power | |
| Power Line Protection | |
| Supplier Device Package | |
| Tape & Reel | |
| Type | |
| Voltage | |
| Voltage - Reverse Standoff (Typ) |
The SM4T82CAY is a bidirectional Zener TVS diode manufactured by STMicroelectronics, designed to protect sensitive electronics from voltage transients. It is rated for automotive applications and offers a peak pulse power dissipation of 400W (8/20µs waveform). The device provides a reverse standoff voltage of 70V and a maximum clamping voltage of 146V at a peak pulse current of 16A.
This TVS diode is constructed with a Zener breakdown mechanism and is bidirectional, making it suitable for protecting lines where both positive and negative transients may occur. It does not include power line protection features, indicating it is intended for signal or low-power lines rather than main power rails.
The SM4T82CAY is housed in a DO-214AC (SMA) surface-mount package, which is compact and suitable for automated assembly. It operates over a wide temperature range of -55°C to 150°C, ensuring reliability in harsh environments. The device is RoHS3 compliant and has an MSL of 1 (unlimited floor life), though these compliance statuses are unverified.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.01 | $1.01 |
| 10+ | $0.63 | $0.63 |
| 100+ | $0.41 | $0.41 |
| 500+ | $0.32 | $0.32 |
| 1,000+ | $0.28 | $0.28 |
| 2,500+ | $0.25 | $0.25 |
| 5,000+ | $0.23 | $0.23 |
| 10,000+ | $0.22 | $0.22 |
| 25,000+ | $0.20 | $0.20 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The reverse standoff voltage is 70V.
The maximum clamping voltage is 146V at 16A peak pulse current.
The peak pulse current is 16A for an 8/20µs waveform.
It is available in a DO-214AC (SMA) surface-mount package.
The peak pulse power rating is 400W.
Yes, it is rated for automotive applications.
The operating temperature range is -55°C to 150°C.