Microchip Technology, Inc. Single Bipolar Transistors 2N3442

The 2N3442 is an NPN high power silicon transistor designed for high current switching applications. It is packaged in a TO-3 (TO-204AA) case and operates with a collector-emitter voltage rating of 140 Vdc and a collector current of 10 Adc. The device can dissipate up to 6.0 W at 25°C with a thermal resistance from junction to case of 1.5°C/W. Its operating and storage junction temperature range is from -55°C to +200°C. Electrical characteristics include a forward current transfer ratio of 20 to 70 at 3.0 Adc collector current and 4.0 Vdc collector-emitter voltage, with a collector-emitter saturation voltage of 1.0 Vdc under specified bias conditions. The transistor is qualified per MIL-PRF-19500/370 at JAN, JANTX, and JANTXV levels.