1N4557A
DIODE ZENER 3.9V 50W TO204ADManufacturer: Microchip Technology
Categories: Single Zener Diodes
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Microchip Technology's 1N4557A is a high-power Zener diode with a nominal breakdown voltage of 3.9V and a maximum power dissipation of 50W. This through-hole component, housed in a TO-204AD (TO-3) package, offers a ±10% tolerance for precise voltage regulation. It exhibits a low impedance of 0.16 Ohms (Zzt) at its rated voltage and a reverse leakage current of 150 µA at 500 mV. The forward voltage drop (Vf) is a maximum of 1.5V at 10A. This device is suitable for applications requiring robust voltage regulation in demanding environments, including industrial power supplies and automotive electronics. The 1N4557A is supplied in bulk packaging.
Additional Information
Series: -RoHS Status: RoHS Compliant By ExemptionManufacturer Lead Time: 35 week(s)Product Status: ActivePackaging: BulkDatasheet:Download Free CAD Model:
Technical Details:
| Tolerance | ±10% |
| Packaging | Bulk |
| Package / Case | TO-204AD |
| Mounting Type | Through Hole |
| Operating Temperature | -65°C ~ 175°C |
| Voltage - Zener (Nom) (Vz) | 3.9 V |
| Impedance (Max) (Zzt) | 0.16 Ohms |
| Supplier Device Package | TO-204AD (TO-3) |
| Power - Max | 50 W |
| Voltage - Forward (Vf) (Max) @ If | 1.5 V @ 10 A |
| Current - Reverse Leakage @ Vr | 150 µA @ 500 mV |
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