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| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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95 pcs
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95 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| AEC Qualified | |
| Automotive Grade | |
| Current | |
| ESD Rating | |
| Flammability Rating | |
| Halogen Free | |
| Impedance (Max) (Zzt) | |
| Industrial Grade | |
| Lead Style | |
| Medical Grade | |
| Military Grade | |
| Mounting Type | |
| Operating Temperature | |
| Power | |
| Power Dissipation (TA=25°C) | |
| SVHC Present | |
| Storage Temperature | |
| Supplier Device Package | |
| Tape & Reel | |
| Thermal Resistance Junction-to-Ambient | |
| Tolerance | |
| Voltage | |
| Voltage - Forward (Vf) (Max) @ If |
The 1SMB5943BT3 is a 3W surface mount Zener diode from On Semiconductor's 1SMB59xxBT3 series. It provides a nominal Zener voltage of 56V with ±5% tolerance. This diode is designed for voltage regulation and protection circuits.
Key electrical specifications include a maximum Zener impedance of 86 Ω at test current, a maximum reverse leakage current of 1 µA at 42.6V reverse voltage, and a forward voltage of 1.5V at 200 mA. The device is rated for a maximum power dissipation of 3W (at lead temperature 75°C) and 550 mW at ambient temperature 25°C on FR-4 board.
The device is housed in a DO-214AA (SMB) surface mount package, offering a compact footprint for space-constrained designs. It features an ESD rating of Class 3 (>16 kV) per Human Body Model and a flammability rating of UL 94 V-0. The operating temperature range is -65°C to +150°C.
The nominal Zener voltage is 56 V.
The tolerance is ±5%.
The maximum power dissipation is 3 W at lead temperature 75°C, and 550 mW at ambient temperature 25°C on FR-4 board.
The package is DO-214AA (SMB) for surface mount.
The maximum forward voltage is 1.5 V at 200 mA.
The operating temperature range is -65°C to +150°C.
The maximum reverse leakage current is 1 µA at 42.6 V reverse voltage.