| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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5,000 pcs
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5000 pcs | On Request | 1 | On Request | On Request | 04+39 | On Request | On Request |
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| Automotive Grade | |
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The 1SMB5945BT3 is a 3W surface mount Zener voltage regulator diode from On Semiconductor's 1SMB59xxBT3 series. It features a nominal Zener voltage of 68V with ±5% tolerance, maximum forward voltage of 1.5V at 200mA, and maximum reverse leakage current of 1µA at 51.7V. The device offers a maximum Zener impedance of 120Ω at IZT.
This diode is designed for general purpose voltage regulation and protection applications. It is housed in a void-free, transfer-molded plastic DO-214AA (SMB) package with modified L-Bend leads for surface mount assembly. The package supports both top side and bottom circuit board mounting and provides a flat handling surface for accurate placement.
Key thermal characteristics include a maximum power dissipation of 3W at lead temperature 75°C (derate 40mW/°C above 75°C) and 550mW at ambient temperature 25°C (derate 4.4mW/°C above 25°C). The device operates over a junction temperature range of -65°C to +150°C. It has an ESD rating of Class 3 (>16kV) per Human Body Model and a flammability rating of UL 94 V-0.
| Qty | Low | High |
|---|---|---|
| 5,000+ | $0.11 | $0.11 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The nominal Zener voltage is 68V with a tolerance of ±5%.
Maximum power dissipation is 3W at lead temperature 75°C and 550mW at ambient temperature 25°C.
It is supplied in a DO-214AA (SMB) surface mount package with modified L-Bend leads.
The operating and storage temperature range is -65°C to +150°C.
The maximum forward voltage is 1.5V at a forward current of 200mA.
Maximum reverse leakage current is 1µA at a reverse voltage of 51.7V.
The device has an ESD rating of Class 3, greater than 16kV per the Human Body Model.