1N4991
DIODE ZENERManufacturer: Microchip Technology
Categories: Single Zener Diodes
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Microchip Technology 1N4991 is a 5W Zener diode with a nominal breakdown voltage of 240V and a ±5% tolerance. This through-hole component features an axial leaded package (E, Axial) suitable for applications requiring robust power handling and precise voltage regulation. With a maximum power dissipation of 5W and an operating temperature range of -65°C to 175°C, it is designed for demanding environments. Key electrical characteristics include a low reverse leakage current of 2 µA at 182V and a Zener impedance of 650 Ohms maximum. Forward voltage is specified at 1.5V maximum at 1A. This component finds application in power supplies, voltage clamping circuits, and general voltage regulation within industrial and high-reliability systems.
Additional Information
Series: -RoHS Status: RoHS non-compliantManufacturer Lead Time: 28 week(s)Product Status: ActivePackaging: BulkDatasheet:Download Free CAD Model:
Technical Details:
| Tolerance | ±5% |
| Packaging | Bulk |
| Package / Case | E, Axial |
| Mounting Type | Through Hole |
| Operating Temperature | -65°C ~ 175°C (TJ) |
| Voltage - Zener (Nom) (Vz) | 240 V |
| Impedance (Max) (Zzt) | 650 Ohms |
| Supplier Device Package | E, Axial |
| Power - Max | 5 W |
| Voltage - Forward (Vf) (Max) @ If | 1.5 V @ 1 A |
| Current - Reverse Leakage @ Vr | 2 µA @ 182 V |
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