Surface-mount Zener diode provides a 51 V nominal Zener voltage with a 48 V to 54 V tested range. The device is rated for 500 mW power dissipation at lead temperature and 370 mW at 25 °C ambient on the specified PCB layout. It uses a molded plastic SOD123 package with matte-tin terminals, cathode-band polarity marking, and an approximate 0.010 g weight. The diode is rated for operation and storage from -65 °C to +150 °C. It is lead-free, RoHS compliant, halogen- and antimony-free, and qualified to AEC-Q101 standards.
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| Device Type | Zener diode |
| Nominal Zener Voltage | 51V |
| Zener Voltage Range | 48 to 54V |
| Zener Test Current | 5mA |
| Maximum Zener Impedance at IZT | 100ohm |
| Maximum Zener Impedance at IZK | 750ohm |
| IZK Test Current | 1.0mA |
| Maximum Reverse Current | 0.1uA |
| Reverse Voltage for Leakage Test | 38.0V |
| Temperature Coefficient Minimum | 46.6mV/°C |
| Temperature Coefficient Test Current | 5mA |
| Forward Voltage at 10 mA | 0.9V |
| Power Dissipation at TL 75 °C | 500mW |
| Power Dissipation at TA 25 °C | 370mW |
| Thermal Resistance Junction to Ambient | 338°C/W |
| Thermal Resistance Junction to Lead | 150°C/W |
| Operating and Storage Temperature Range | -65 to +150°C |
| Package | SOD123 |
| Moisture Sensitivity Level | Level 1 per J-STD-020 |
| Marking Code | WW |
| RoHS | Compliant |
| Lead-free | Yes |
| Halogen And Antimony Free | Green device |
| Aec-q101 | Qualified |
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