The U421 is a P-CHANNEL junction field-effect transistor with a TO-78 package. It operates within a temperature range of -55°C to 150°C and has a power dissipation of 500mW. The device has a continuous drain current of 1mA and a current rating of 10mA. The drain to source resistance is 2kΩ, and the gate to source voltage is -40V. The U421 is lead-free and RoHS compliant, but not compliant with RoHS regulations.
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Vishay U421 technical specifications.
| Package/Case | TO-78 |
| Continuous Drain Current (ID) | 1mA |
| Current Rating | 10mA |
| Drain to Source Resistance | 2kR |
| Gate to Source Voltage (Vgs) | -40V |
| Lead Free | Lead Free |
| Max Operating Temperature | 150°C |
| Min Operating Temperature | -55°C |
| Mount | Through Hole |
| Package Quantity | 200 |
| Polarity | P-CHANNEL |
| Power Dissipation | 500mW |
| RoHS Compliant | No |
| RoHS | Not Compliant |
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