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| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
5,000 pcs
|
5000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Power | |
| Power Dissipation | |
| SVHC Present | |
| Storage Temperature | |
| Supplier Device Package | |
| Tape & Reel | |
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| Voltage | |
| Zener Voltage (Nominal) |
The 1N4731A-TR is a silicon planar power Zener diode manufactured by Vishay Semiconductors. It provides a nominal Zener voltage of 4.3V with a standard tolerance of ±5%. The device can dissipate up to 1300mW (1.3W) of power at 25°C ambient temperature, making it suitable for voltage stabilization and clipping circuits that require moderate power handling.
This diode has a maximum forward voltage of 1.2V at 200mA forward current and a maximum reverse leakage current of 10µA at 1V reverse voltage. The dynamic impedance (Zzt) is specified at 9Ω when tested at 76mA and 1kHz. The operating junction temperature can reach up to 175°C.
The part is housed in a through-hole DO-204AL (DO-41) axial package, which is widely used for discrete semiconductors. It has an MSL rating of 1 according to J-STD-020, indicating unlimited floor life, and is suitable for wave soldering. The -TR suffix indicates tape-and-reel packaging for automated assembly.
Per product data, the device is listed as RoHS3 compliant and REACH unaffected, although these compliance statuses have not been independently verified. The series datasheet describes these Zener diodes for use in stabilizing and clipping circuits with high power ratings, making the 1N4731A-TR appropriate for voltage regulation and overvoltage protection in electronic systems.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.41 | $0.41 |
| 10+ | $0.28 | $0.28 |
| 100+ | $0.19 | $0.19 |
| 500+ | $0.12 | $0.12 |
| 1,000+ | $0.10 | $0.10 |
| 2,500+ | $0.09 | $0.09 |
| 5,000+ | $0.07 | $0.07 |
| 10,000+ | $0.07 | $0.07 |
| 25,000+ | $0.05 | $0.05 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The nominal Zener voltage is 4.3V with a tolerance of ±5%.
The maximum power dissipation is 1300mW (1.3W) at 25°C ambient temperature with leads at 4mm from case.
The maximum forward voltage is 1.2V when forward current is 200mA.
The maximum reverse leakage current is 10µA at a reverse voltage of 1V.
The device is available in a DO-204AL (DO-41) axial through-hole package.
The maximum junction temperature is 175°C.
The maximum dynamic impedance is 9Ω at a test current of 76mA and 1kHz.