This document is the datasheet of TIP120/121/122 three models, including product characteristics, technical parameters, application circuits and other information.
The TIP120/121/122 series are monolithic Darlington transistors with built‑in base‑emitter shunt resistors, offering high DC current gain (hFE≈1000) and suitability for industrial applications. Key electrical ratings include collector‑base voltages of 60‑100 V, collector‑emitter sustaining voltages up to 100 V, and a maximum DC collector current of 5 A (8 A pulse).
Package information is provided for TO‑220 (A) and TO‑220 (B) styles, with detailed mechanical dimensions in millimetres. The datasheet also lists thermal limits, storage temperature range, and power dissipation capabilities for reliable design integration.
| DC Current Gain (hFE) | 1000 (min) |
|---|---|
| Collector‑Base Voltage (TIP120) | 60 V |
| Emitter‑Base Voltage | 5 V |
| Collector Current (DC) | 5 A |
| Collector Current (Pulse) | 8 A |
| Base Current | 120 mA |
| Collector Dissipation (Ta=25°C) | 2 W |
| Junction Temperature | 150 °C |
| Storage Temperature Range | -65 °C to 150 °C |
The TIP120 series can handle up to 5 A continuous collector current.