SMBJ48A is a unidirectional surface-mount transient voltage suppressor diode designed for 48 V stand-off operation. It provides 600 W peak pulse power on a 10/1000 µs waveform, a 53.3 V to 58.9 V breakdown range at 1 mA, and a 77.4 V maximum clamping voltage at 7.7 A. The device is supplied in an SMB (DO-214AA) molded plastic package with a cathode polarity band and is intended for surface mounting in any orientation. It operates over a junction and storage temperature range of -55 °C to +150 °C and has a typical junction-to-ambient thermal resistance of 100 °C/W.
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Synsemi SMBJ48A technical specifications.
| Polarity | UNIDIRECTIONAL |
| Diode Type | TRANS VOLTAGE SUPPRESSOR DIODE |
| Rep Pk Reverse Voltage-Max | 48 |
| Clamping Voltage-Max | 77.4 |
| Breakdown Voltage-Nom | 56.1 |
| RoHS | Yes |
| REACH | unknown |
| Military Spec | False |
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