PMD25K150 is a silicon NPN power transistor manufactured by General Electric (GE) (NOS)

Key Specifications

​The PMD25K150 is a silicon NPN power transistor manufactured by General Electric (GE) or a similar company from that era. The "PMD" prefix likely stands for "Power Module Device," while the numbers indicate its key specifications.

• ​Type: NPN Power Transistor
• ​Voltage Rating: Up to 150V (Collector-Emitter Voltage, Vce)
• ​Current Rating: Up to 25A (Collector Current, Ic)
• ​Power Dissipation: Up to 250W
• ​Package: TO-3 (Hermetically sealed metal can)

​Applications

​The high power ratings of the PMD25K150 make it suitable for use in:

• ​High-power audio amplifiers
• ​Switching power supplies
• ​Inverters
• ​Motor control circuits