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| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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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 |
| Category | |
| Manufacturer Name | |
| Applications | |
| Clamping Voltage | |
| Current | |
| Lead Finishing | |
| Lead Style | |
| Lead Temperature for Soldering | |
| Leakage Current (Maximum @ 0.2 µA at 25 °C) | |
| Leakage Current (Maximum @ 1 µA at 85 °C) | |
| Mounting Type | |
| Operating Junction Temperature | |
| Operating Temperature | |
| Peak Pulse Power (Maximum @ 10/1000 µs) | |
| Peak Pulse Power (Maximum @ 8/20 µs) | |
| Peak Pulse Voltage (Maximum @ IEC 61000-4-2 (C = 150 pF, R = 330 Ω) Air discharge) | |
| Peak Pulse Voltage (Maximum @ IEC 61000-4-2 (C = 150 pF, R = 330 Ω) Contact discharge) | |
| Power | |
| Power Capability at Tj max | |
| Power Line Protection | |
| SVHC Present | |
| Stand-off Voltage | |
| Storage Temperature | |
| Supplier Device Package | |
| Supplier Package | |
| Type | |
| Unidirectional Channels | |
| Voltage |
The SMA4F70A from STMicroelectronics is a unidirectional TVS (Transient Voltage Suppressor) diode designed to protect sensitive electronic circuits from transient voltage surges. It features a peak pulse power dissipation of 400 W for a 10/1000 μs waveform and 2.5 kW for an 8/20 μs waveform.
This TVS diode has a stand-off voltage range from 5 V to 188 V, with a breakdown voltage of 70 V and a clamping voltage of 113 V at 10 A. It exhibits low leakage current, with a maximum of 0.2 μA at 25 °C and 1 μA at 85 °C. The operating junction temperature range is -55 °C to +175 °C.
Designed for reliability and stability in high-end circuits, the SMA4F70A utilizes planar technology. It is housed in a DO-221AC, SMA Flat Leads package, suitable for surface mounting. The lead finishing is matte tin plating.
The device complies with IEC 61000-4-2 standards, exceeding level 4 for ESD protection with 25 kV (contact discharge) and 30 kV (air discharge). It also meets UL94 V0, J-STD-020 MSL level 1, and J-STD-002 standards.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The SMA4F70A has a peak pulse power of 400 W for a 10/1000 μs waveform and 2.5 kW for an 8/20 μs waveform.
The stand-off voltage range for the SMA4F70A is from 5 V to 188 V.
The breakdown voltage of the SMA4F70A at 10 mA is typically 70 V.
The clamping voltage of the SMA4F70A at 10 A is a maximum of 113 V.
The peak pulse current rating for the SMA4F70A is 3.5 A for a 10/1000 μs waveform.
The SMA4F70A is supplied in a DO-221AC, SMA Flat Leads package, also referred to as SMAflat.
The SMA4F70A exceeds IEC 61000-4-2 level 4, providing 25 kV via contact discharge and 30 kV via air discharge.