(ST) 2N3055 Metal Transistor TO-3 Code: 24329763

The 2N3055 is a classic, widely used silicon NPN power transistor. Encased in a durable TO-3 metal package, it is a staple in general-purpose amplifiers and switching circuits due to its excellent heat dissipation and ruggedness.

Key Specifications

• Type:NPN
• Package Type:TO-3 (Metal case)
• Collector-Emitter Voltage :60 V
• Collector-Base Voltage :100 V
• Collector Current :15 A
• Power Dissipation :115 W
• DC Current Gain :20 to 70

Pinout Configuration

The 2N3055 has three terminals:

1. Base:The triggering pin that controls the current flow.
2. Emitter:The pin where the main current exits.
3. Collector:The pin where the main current enters.
   (Note: The metal case of the TO-3 acts as the collector connection).

Primary Applications

• Linear and switching power supplies
• Audio power amplifiers
• Motor drivers and inverters