Multicomp Pro BD677 NPN Power Darlington Transistor TO-126

The Multicomp Pro BD677 is an NPN power Darlington transistor housed in a TO-126 package, designed for robust performance in switching and amplification circuits. It offers a high collector-emitter voltage of 60V and can handle a substantial DC collector current of 4A, making it suitable for driving motors, relays, and other inductive loads.

With a power dissipation rating of 40W, this component is built to manage significant thermal loads. Its high DC current gain (hFE) of 750 ensures efficient signal amplification with minimal base current, contributing to overall circuit efficiency. The transistor features a wide operating junction temperature range from -55°C to 150°C, providing reliable operation in demanding industrial environments.

Key Specifications & Features

• Transistor Type: NPN Power Darlington
• Package: TO-126 (SOT-32 case)
• Mounting: Through-hole for secure PCB attachment
• High Voltage: Collector-emitter voltage (V(br)ceo) of 60V
• High Current: DC collector current rating of 4A
• High Gain: DC current gain (hFE) of 750
• Robust Power Handling: Power dissipation (Pd) of 40W
• Wide Temperature Range: Operational from -55°C to 150°C

This component is a reliable choice for engineers and hobbyists requiring a durable and high-performance transistor for power management applications.