MJE340 transistor TO126 CDIL PNP 300V 0.5A transistor 340 CDIL MJE340

Product Overview:

A through-hole NPN silicon planar epitaxial bipolar junction transistor housed in a TO-126 plastic package.

(Note: While some retailer listings occasionally mislabel this part as a PNP, the MJE340 is fundamentally an NPN transistor).

Engineered for high-voltage, general-purpose applications, it is widely utilized in the driver stages of high-fidelity audio amplifiers, gas-discharge display drivers, line-operated deflection circuits, and low-power switching power supplies. It frequently serves as the complementary NPN pair to the MJE350 PNP transistor.

Core Specifications:

• Manufacturer: CDIL (Continental Device India Limited)

• Package Type: TO-126

• Function: NPN High-Voltage Power Transistor

• Maximum Collector-Emitter Voltage ($V_{CEO}$): 300V

• Maximum Continuous Collector Current ($I_C$): 0.5A (500mA)

• Maximum Collector Power Dissipation ($P_C$): 20W (at case temperature $T_C = 25^\circ\text{C}$)

• Common Marking Code: MJE340