2N657-Transistor by ON Semiconductor | NPN Power Transistor | TO-3 Package

2N657-Transistor Overview

The 2N657 transistor is a high-voltage NPN bipolar junction transistor designed for medium-power switching and amplification applications. Known for its robust performance, it supports collector-to-emitter voltages up to 100V and continuous collector currents of 1.5A, making it suitable for various industrial and electronic circuits. Its reliable switching characteristics and moderate gain ensure stable operation in linear and switching modes. Engineers and sourcing specialists will appreciate its compatibility with a broad range of power management and signal amplification tasks. For detailed sourcing and technical support, visit IC Manufacturer.

2N657-Transistor Technical Specifications

2N657-Transistor Key Features

• High voltage rating: Supports up to 100V collector-emitter voltage, enabling use in circuits requiring robust voltage tolerance.
• Moderate current handling: Continuous collector current of 1.5A allows efficient switching and amplification in medium-power applications.
• Reliable gain characteristics: DC current gain ranges from 40 to 100, providing stable and predictable amplification performance.
• Thermal resilience: Maximum junction temperature of 150??C ensures reliable operation under elevated thermal stress.
• Power dissipation capacity: Capable of dissipating up to 30W, facilitating use in power control and regulation circuits.

Typical Applications

• Switching regulators and power supply circuits requiring medium power handling and high-voltage tolerance for efficient energy management.
• Audio amplifiers where moderate gain and reliable linear operation are essential for signal fidelity.
• Industrial control systems utilizing robust transistors for driving loads and interfacing with digital control logic.
• General purpose switching applications involving relay drivers, lamp drivers, and other electromechanical loads.

2N657-Transistor Advantages vs Typical Alternatives

This transistor offers a balanced combination of high voltage capacity and moderate current handling that exceeds many common low-voltage transistors. Its stable gain range and power dissipation rating enhance reliability and efficiency in demanding industrial circuits. Compared to alternatives, it provides better voltage tolerance and thermal endurance, making it a preferred choice for engineers seeking durable and consistent performance in medium-power switching and amplification tasks.

2N657-Transistor Brand Info

The 2N657 transistor is a longstanding product widely manufactured and supplied by multiple semiconductor producers, often found in legacy and industrial component catalogs. It is categorized as a silicon NPN bipolar junction transistor designed to meet general-purpose medium-power needs. Though not tied to a single proprietary brand, it is commonly available through established distributors and manufacturers specializing in discrete semiconductor devices. Its broad availability and proven track record make it a dependable component in the industrial electronics field.

FAQ

What is the maximum voltage the 2N657 transistor can handle?

The maximum collector-to-emitter voltage for this transistor is rated at 100 volts, allowing it to operate safely