The BUL128D is a high-voltage NPN power bipolar transistor manufactured by Inchange Semiconductor. This transistor is specifically designed for use in high-voltage switching applications, such as electronic lighting ballasts, switch-mode power supplies (SMPS), and motor control circuits.

Applications

• Electronic lighting ballasts.
• Switch-mode power supplies (SMPS).
• Motor control circuits.
• High-voltage inverters.
• Power amplifiers.

Features

• NPN Bipolar Power Transistor.
• High collector-emitter breakdown voltage.
• Fast switching speed.
• Low saturation voltage.
• High power dissipation capability.

Benefits

• Enables efficient and reliable operation in high-voltage switching applications.
• Reduces power losses due to low saturation voltage.
• Improved system efficiency with fast switching speeds.
• Robust design for demanding power applications.
• Cost-effective solution for high-voltage designs.

Technical Specifications

The BUL128D typically features a collector-emitter breakdown voltage (VCEO) of 1500V, a collector current (IC) of 5A, and a power dissipation (PD) of 125W. It offers fast switching times with a typical fall time of around 0.3 microseconds. The transistor is typically packaged in a TO-220 or similar through-hole package. Consult the official Inchange Semiconductor datasheet for detailed specifications, including operating temperature ranges, thermal resistance, and safe operating area (SOA) curves.