The MJ2501 and MJ3001 are complementary silicon power Darlington transistors intended for use in power linear and switching applications.
The MJ2501 is a silicon epitaxial-base PNP power transistor in a monolithic Darlington configuration, while the MJ3001 is the complementary NPN type.
They are mounted in a Jedec TO-3 metal case and have absolute maximum ratings for collector-base voltage, collector-emitter voltage, emitter-base voltage, collector current, base current, total dissipation, storage temperature, and maximum operating junction temperature.
The transistors have thermal resistance and various electrical characteristics, including collector cut-off current, collector-emitter saturation voltage, and DC current gain.
The publication also includes mechanical data and a disclaimer from SGS-THOMSON Microelectronics.