
SM4T14AY
STMicroelectronics
40 variants · STMicroelectronics
The STMicroelectronics SM4T Series series groups 40 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common capacitance @ frequency of -, case of DO-214AC, SMA and mounting of Surface Mount. Variants differ by applications, current - peak pulse (10/1000μs) and operating temperature, so you can match the exact applications your application requires using the selection guide below. All listed STMicroelectronics SM4T Series part numbers are active and orderable.
| Parameter | SM4T10AY | SM4T10CAY | SM4T12AY | SM4T12CAY | SM4T14AY | SM4T14CAY |
|---|---|---|---|---|---|---|
| Applications | - | Automotive | Automotive | Automotive | Automotive | Automotive |
| Current - peak pulse (10/1000μs) | 124A (8/20µs) | 124A (8/20µs) | 106A (8/20µs) | 106A (8/20µs) | 91A (8/20µs) | 91A (8/20µs) |
| Operating temperature | -55°C ~ 150°C (TJ) | -55°C~150°C(TJ) | -55°C~150°C(TJ) | -55°C~150°C(TJ) | -55°C~150°C(TJ) | -55°C~150°C(TJ) |
| Package | Tape & Reel (TR) Cut Tape (CT) | Tape & Reel (TR); Cut Tape (CT) | Tape & Reel (TR); Cut Tape (CT) | Tape & Reel (TR); Cut Tape (CT) | Tape & Reel (TR); Cut Tape (CT) | Tape & Reel (TR); Cut Tape (CT) |
| Voltage - breakdown | 9.4V | 9.4V | 11.1V | 11.1V | 13.3V | 13.3V |
| Voltage - clamping (Max) @ ipp | 19.5V | 19.5V | 21.7V | 21.7V | 25.3V | 25.3V |
| Voltage - reverse standoff | 8.5V | 8.5V | 10V | 10V | 12V | 12V |
Request a quote on any STMicroelectronics SM4T Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

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