Astec Semiconductor => Silicon Link
Secondary side housekeeping circuit
Monolithic Power Systems
2A, 23V, 370KHz Step-Down Converter
TT Electronics.
Hermetic Infrared Emitting Diode
New Jersey Semiconductor
GERMANIUM POWER TRANSISTORS
Temic Semiconductors
PWM Power Control for DC Loads
STMicroelectronics
High temperature 12 A Triacs
Unspecified
Thyristors (SiBOD Breakover Devices)