Microchip Technology, Inc. Single Bipolar Transistors 2N3498UB

The 2N3498UB is a member of the 2N3498 through 2N3501 series of NPN silicon transistors, designed for medium power applications requiring high-frequency switching and high reliability. It is available in a U4 surface-mount package, with hermetically sealed kovar base and nickel cap construction, and features a collector-emitter voltage rating of 100 V and a maximum collector current of 500 mA. The device operates with a junction temperature range of -65°C to +200°C, has a thermal resistance junction-to-case of 30°C/W, and meets MIL-PRF-19500/366 qualifications for JAN, JANTX, JANTXV, and JANS reliability levels. The package dimensions are consistent with the U4 surface-mount form factor, and lead configuration follows the standard TO-5 pinout with the collector connected to the case.