TO-92 is the small plastic through-hole package for low-power transistors (BC547, 2N2222, 2N3904), small signal MOSFETs, temperature sensors (LM35, DS18B20), and voltage references.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | Pin 1 | Varies: Emitter/Source/Output (flat face left) | I/O |
| 2 | Pin 2 | Varies: Base/Gate/GND (center) | I/O |
| 3 | Pin 3 | Varies: Collector/Drain/VCC (flat face right) | I/O |
TO-92 is the small plastic through-hole package for low-power transistors (BC547, 2N2222, 2N3904), small signal MOSFETs, temperature sensors (LM35, DS18B20), and voltage references.