TO-39 of RCA IC,

Optoelectronics	Discrete Semiconductor Products	Sensors, Transducers	Integrated Circuits (ICs)	Electronic Components
Infrared, UV, Visible Emitters	Transistors - Bipolar (BJT) - Single Transistors - FETs, MOSFETs - Single Transistors - Bipolar (BJT) - RF	Temperature Sensors - Analog and Digital Output Optical Sensors - Photodiodes	PMIC - Thermal Management	STM IC Texas TI IC Harris IC RCA IC Intersil IC Fairchild IC Maxim IC

Part Number	Manufacturer / Brand	Brife Description