STL106D

Single Bipolar Transistors Overview

The STL106D is a general-purpose NPN silicon epitaxial planar transistor manufactured by STMicroelectronics. It features a collector-emitter voltage rating of 230V and a continuous collector current capacity of 1.5A. Designed for high-speed switching applications, the device utilizes a TO-92-3 through-hole package. Key electrical parameters include a DC current gain (hFE) range typically between 100 and 220 at a collector current of 2mA. The component is optimized for use in flyback converter circuits and other power switching scenarios requiring robust voltage handling.

Single Bipolar Transistors Feature Summary

• High voltage capability with a 230V collector-emitter breakdown rating suitable for mains-connected applications.
• Fast switching speed characteristics designed to minimize transition losses in high-frequency circuits.
• Robust mechanical construction in a standard TO-92-3 leaded package for reliable through-hole mounting.

Single Bipolar Transistors Applications

• Flyback converter primary switching stages
• General-purpose high-voltage switching circuits
• Relay driver interfaces

Single Bipolar Transistors Procurement Notes

Verify the specific hFE binning grade required for your application, as gain varies across production lots. Confirm that the TO-92-3 package dimensions align with your PCB footprint constraints. Ensure thermal management strategies account for the 1.5W power dissipation limit under worst-case operating conditions. Cross-reference the manufacturer's latest datasheet for absolute maximum ratings to prevent overstress during implementation.

Single Bipolar Transistors Selection Notes

Select this component when designing circuits requiring high voltage isolation combined with moderate current switching capabilities. The 230V rating makes it suitable for direct AC line applications where lower-rated transistors would fail. Consider the switching speed requirements; if ultra-fast recovery is critical, verify the reverse bias safe operating area against your specific load profile compared to alternative fast-switching devices.

Single Bipolar Transistors Part Context

The STL106D belongs to the family of general-purpose bipolar junction transistors offered by STMicroelectronics. It serves as a cost-effective solution for discrete switching tasks in consumer electronics and industrial control systems. Unlike integrated drivers, this discrete component offers flexibility in custom circuit design for power conversion and signal switching applications.

Single Bipolar Transistors Replacement Considerations

Potential substitutes include the MJE13001 or MJE13003 series for similar voltage and current ratings in flyback applications. Verify pinout compatibility and thermal resistance values before swapping. Alternative fast-switching NPN transistors with comparable Vceo ratings should be evaluated for switching time differences.