1N3994A
DIODE ZENERManufacturer: Microchip Technology
Categories: Single Zener Diodes
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Microchip Technology's 1N3994A is a high-power Zener diode with a nominal voltage of 4.3V and a tight tolerance of ±5%. This component is designed for demanding applications requiring stable voltage regulation, dissipating up to 10W in a stud-mount DO-203AA (DO-4) package. Featuring a low reverse leakage of 100 µA at 500 mV and a maximum impedance of 1.5 Ohms, the 1N3994A offers reliable performance across a wide operating temperature range of -65°C to 175°C. Typical applications include power supply regulation, voltage clamping, and surge protection in industrial and automotive systems. The forward voltage drop at 2A is a maximum of 1.5V. This device is supplied in bulk packaging.
Additional Information
Series: -RoHS Status: RoHS non-compliantManufacturer Lead Time: 35 week(s)Product Status: ActivePackaging: BulkDatasheet:Download Free CAD Model:
Technical Details:
| Tolerance | ±5% |
| Packaging | Bulk |
| Package / Case | DO-203AA, DO-4, Stud |
| Mounting Type | Stud Mount |
| Operating Temperature | -65°C ~ 175°C (TJ) |
| Voltage - Zener (Nom) (Vz) | 4.3 V |
| Impedance (Max) (Zzt) | 1.5 Ohms |
| Supplier Device Package | DO-203AA (DO-4) |
| Power - Max | 10 W |
| Voltage - Forward (Vf) (Max) @ If | 1.5 V @ 2 A |
| Current - Reverse Leakage @ Vr | 100 µA @ 500 mV |
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