# NPN transistor, 2N3055, bipolar, TO-3, 15A, 60V

> Bipolar NPN transistor 2N3055 from STMicroelectronics, in a TO-3 package with THT mounting. Collector current up to 15A, maximum voltage 60V and power dissipation of 117W. Mainly used in output stages of audio amplifiers and in power supplies.

- Page: https://sigmanortec.ro/en/npn-transistor-2n3055-bipolar-to-3-15a-60v
- Price: 7.02 RON
- Availability: In stock; 1-2 zile
- Reference: 33386 · EAN: 5945006225796
- Category: Electronic components > Transistors
- Specifications: Nominal Current: 15 A
- Package (shipping data): 0.01 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 02:21 (Europe/Bucharest)

## Description

Ideal for power stages and power supplies in audio amplifiers, this NPN bipolar transistor from STMicroelectronics offers collector current up to 15A, maximum voltage 60V and power dissipation 117W. The robust TO-3 package and THT mounting make it suitable for industrial applications that demand reliability and efficient cooling.
Transistor type NPN, bipolar, used in particular for audio amplifiers.
Specifications:
Manufacturer: STMicroelectronics
Model: 2N3055
Type: NPN
Case: TO-3
Mounting: THT
Collector current: 15A
Power: 117W