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10,000 pcs
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10000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Power Line Protection | |
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| Unidirectional Channels | |
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The STMicroelectronics SMA4F188A is a TVS (Transient Voltage Suppressor) Diode designed to protect sensitive electronic circuits from transient voltage surges. It operates within a stand-off voltage range from 5 V to 188 V and offers a peak pulse power dissipation of 400 W (10/1000 µs) and 2.5 kW (8/20 µs).
This unidirectional TVS diode features a low leakage current of 0.2 μA at 25 °C and 1 μA at 85 °C, making it suitable for high-end circuits requiring stability and long-term reliability. The planar technology ensures high junction temperature capability, with an operating junction temperature range of -55 °C to 175 °C.
The SMA4F188A is packaged in a DO-221AC, SMA Flat Leads package and is designed for surface mount applications. It complies with IEC 61000-4-2 standards for electrostatic discharge protection, exceeding level 4 with 25 kV (contact discharge) and 30 kV (air discharge).
Key electrical characteristics include a breakdown voltage of 188 V at 10 mA and a clamping voltage of 328 V at 1.4 A. The lead finishing is matte tin plating.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.55 | $0.55 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The stand-off voltage is 188 V.
The minimum breakdown voltage is 188 V at 10 mA.
The maximum clamping voltage is 328 V at 1.4 A.
The maximum peak pulse current is 1.4 A for a 10/1000 µs waveform.
The device is packaged in a DO-221AC (SMA flat leads) surface-mount package.
The peak pulse power dissipation is 400 W for a 10/1000 µs waveform and 2.5 kW for an 8/20 µs waveform.
The maximum operating junction temperature is 175 °C.