JANS1N4991DUS
ZENER DIODEManufacturer: Microchip Technology
Categories: Single Zener Diodes
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Microchip Technology's JANS1N4991DUS is a high-reliability Zener diode designed for demanding applications. This military-grade component, qualified to MIL-PRF-19500/356, features a precise 240V nominal Zener voltage with a tight ±1% tolerance. Rated for 5W maximum power dissipation, it is housed in a compact SQ-MELF, E (D-5B) surface-mount package, suitable for high-density board designs. The JANS1N4991DUS exhibits a low reverse leakage current of 2 µA at 182V and a maximum Zener impedance (Zzt) of 650 Ohms. Its robust operating temperature range of -65°C to 175°C makes it ideal for use in aerospace, defense, and industrial power management systems where stability and performance are critical.
Additional Information
Series: -RoHS Status: RoHS non-compliantManufacturer Lead Time: 32 week(s)Product Status: ActivePackaging: BulkDownload Free CAD Model:
Technical Details:
| Tolerance | ±1% |
| 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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