HG 2SC1969

The “HG 1969” refers to the HG 2SC1969 NPN RF power transistor, a modern replacement for the classic Mitsubishi 2SC1969 transistor widely used in CB and amateur radio amplifiers.
Description and Use
Function: The HG 2SC1969 is a silicon NPN epitaxial planar type power transistor designed for use in radio frequency (RF) power amplifiers, specifically in the HF band mobile radio applications like 27 MHz CB radios.
Performance: It is known for its reliable performance, durable build, and excellent signal amplification, offering high power gain (typically >12dB). It can usually produce around 16 watts of power output with a 12V supply in a Class AB operation.
Application: Due to the original Mitsubishi parts being discontinued years ago, the HG version has become a popular and recommended “drop-in” replacement for repairs and upgrades in vintage radios like the Cobra 148, Uniden Washington, and Galaxy models.
Specifications
According to manufacturers and user forums, here are some typical specifications:
Transistor Type: NPN, Silicon Epitaxial Planar
Package Type: TO-220
Maximum Operating Frequency: 35 MHz
Collector-Emitter Voltage: 25-30V
Collector Current: 6 A
Power Dissipation: 20 W
Power Gain: >12 dB at 27 MHz