2SC3851A

Single Bipolar Transistors Overview

The Sanken 2SC3851A is a silicon NPN epitaxial planar transistor designed for audio, PPC high voltage power supply, and general-purpose applications. It features a collector-emitter breakdown voltage of 80V and a maximum continuous collector current of 4A. The device supports a maximum power dissipation of 25W at 25°C case temperature and operates within a junction temperature range of -55°C to +150°C. Electrical characteristics include a DC current gain (hFE) ranging from 40 to 320 at IC=1A and VCE=4V, with a typical transition frequency of 15MHz.

Single Bipolar Transistors Feature Summary

• Complements the 2SA1488/A PNP transistor in push-pull configurations
• Designed for high-voltage power supply and audio amplifier circuits
• Utilizes an epitaxial planar structure for stable performance

Single Bipolar Transistors Applications

• Audio amplifiers
• PPC high voltage power supplies
• General purpose switching

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix against official documentation to confirm electrical tolerances, as variations may exist between standard and A-grade designations. Confirm package compatibility with TO-220F mechanical constraints during integration. Ensure thermal management solutions align with the specified derating curves for reliable operation under load.

Single Bipolar Transistors Selection Notes

Select this component when a complementary NPN transistor is required for the 2SA1488/A pair. Evaluate the 80V breakdown voltage against circuit peak voltages. Consider the 4A current rating and 25W power dissipation capabilities relative to the expected thermal environment and heatsinking availability.

Single Bipolar Transistors Part Context

This component belongs to Sanken's lineup of high-power bipolar junction transistors intended for robust power handling. It serves as the NPN counterpart to the 2SA1488/A series, facilitating balanced output stages in linear and switching power applications requiring high reliability and defined saturation characteristics.

Single Bipolar Transistors Replacement Considerations

Direct substitutes are not explicitly confirmed in public datasheets. Verify pinout compatibility and absolute maximum ratings before considering alternative manufacturers' parts.