2SC3786

Single Bipolar Transistors Overview

The Sanyo 2SC3786 is a single NPN silicon epitaxial planar bipolar junction transistor designed for driver applications. It features a collector-emitter voltage rating of 50V and a continuous collector current capacity of 3A. The device operates with a high DC current gain and offers a wide safe operating area (ASO). A key internal feature is the integrated Zener diode between the collector and base, rated at 60±10V, which aids in protection during switching operations.

Single Bipolar Transistors Feature Summary

• High DC current gain for efficient signal amplification
• Wide Safe Operating Area (ASO) for robust performance
• Integrated on-chip Zener diode between collector and base

Single Bipolar Transistors Applications

• Driver circuits requiring high gain
• Switching applications utilizing internal protection
• General-purpose power transistor stages

Single Bipolar Transistors Procurement Notes

Verify the manufacturer origin carefully, as the 2SC3786 specification has been transferred to onsemi following Sanyo's semiconductor business acquisition. Ensure the datasheet provided matches the specific lot and package variant, such as TO-126LP or SOT-82, depending on the production era. Confirm RoHS compliance status if required for modern assembly processes.

Single Bipolar Transistors Selection Notes

Select this component when an NPN transistor with moderate power handling (3A) and 50V breakdown is needed. The integrated collector-base Zener diode is a critical differentiator for protecting against voltage spikes in inductive loads. Consider the thermal resistance of the TO-126LP or SOT-82 package relative to the expected power dissipation of 1.2W.

Single Bipolar Transistors Part Context

This part belongs to the family of single bipolar transistors manufactured by Sanyo Semiconductor. It is categorized as a power BJT suitable for general-purpose driving tasks. The component is now often associated with onsemi, which acquired Sanyo's discrete semiconductor line, maintaining the original specifications and pinout compatibility.

Single Bipolar Transistors Replacement Considerations

Public confirmed substitute part numbers include those from onsemi under the same designation. Cross-reference with other NPN transistors offering similar 50V/3A ratings and integrated protection diodes if sourcing from alternative manufacturers.

Single Bipolar Transistors FAQ

What is the function of the internal diode?

The 2SC3786 includes an on-chip Zener diode between the collector and base, rated at 60±10V, to provide protection against voltage transients.

Is this transistor suitable for high-frequency use?

Yes, it supports operation up to 180MHz, making it suitable for various driver and switching applications.