BC188 Transistor NPN TRANSISTOR 188 CDIL BC188

Product Overview

The BC188 is a classic, general-purpose NPN silicon bipolar junction transistor (BJT) housed in a metal TO-18 package. It is designed for low-power, low-noise amplification and switching applications. Because of its reliable performance in small-signal circuits, it was a staple in vintage audio equipment, radio frequency (RF) stages, and educational electronics projects. The metal can construction provides better heat dissipation and electromagnetic shielding compared to standard plastic alternatives.

Core Specifications

• Manufacturer: CDIL (Continental Device India Limited)

• Package Type: TO-18 (Metal Can)

• Component Type: NPN Silicon Transistor

• Collector-Emitter Voltage ($V_{CEO}$): 25V

• Collector-Base Voltage ($V_{CBO}$): 50V

• Emitter-Base Voltage ($V_{EBO}$): 5V

• Continuous Collector Current ($I_C$): 300mA

• Power Dissipation ($P_{tot}$): 360mW (at $T_A = 25^\circ C$)

• DC Current Gain ($h_{FE}$): 60 to 300 (Typically measured at $I_C = 2mA, V_{CE} = 5V$)

• Transition Frequency ($f_T$): 100 MHz (Minimum)

• Marking Code: BC188

• Part Number: BC188