JANS1N4991US
ZENER DIODEManufacturer: Microchip Technology
Categories: Single Zener Diodes
Quality Control: Learn More
Microchip Technology JANS1N4991US is a 5 W Zener diode with a nominal breakdown voltage of 240 V and a tight ±5% tolerance. This military-grade component, qualified to MIL-PRF-19500/356, features a low reverse leakage of 2 µA at 182 V and a maximum Zener impedance of 650 Ohms. Designed for demanding applications, it operates across a wide temperature range of -65°C to 175°C. The JANS1N4991US is supplied in a D-5B (SQ-MELF, E) surface-mount package, suitable for high-reliability systems in aerospace, defense, and industrial sectors requiring precise voltage regulation.
Additional Information
Series: -RoHS Status: RoHS non-compliantManufacturer Lead Time: 32 week(s)Product Status: ActivePackaging: BulkDownload Free CAD Model:
Technical Details:
| Tolerance | ±5% |
| Packaging | Bulk |
| Package / Case | SQ-MELF, E |
| Mounting Type | Surface Mount |
| Operating Temperature | -65°C ~ 175°C (TJ) |
| Voltage - Zener (Nom) (Vz) | 240 V |
| Impedance (Max) (Zzt) | 650 Ohms |
| Supplier Device Package | D-5B |
| Grade | Military |
| Power - Max | 5 W |
| Voltage - Forward (Vf) (Max) @ If | 1.5 V @ 1 A |
| Current - Reverse Leakage @ Vr | 2 µA @ 182 V |
| Qualification | MIL-PRF-19500/356 |
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