2SC4256

Single Bipolar Transistors Overview

The onsemi 2SC4256 is a high-voltage NPN silicon power bipolar junction transistor designed for demanding switching applications. It features a collector-emitter breakdown voltage of 1200V and a maximum continuous collector current of 0.01A. The device utilizes a single-element configuration housed in a TO-220AB plastic epoxy package with a flange mount for effective thermal management. This component is engineered for high reliability, making it suitable for circuits requiring robust performance under high voltage stress.

Single Bipolar Transistors Feature Summary

• High voltage capability with 1200V collector-emitter breakdown rating
• Designed for high reliability applications
• NPN silicon construction for stable switching performance

Single Bipolar Transistors Applications

• High voltage switching circuits
• Flyback transformer drivers
• Resonant load inverters

Single Bipolar Transistors Procurement Notes

Verify the manufacturer origin, as SANYO was the original producer. Confirm the specific suffix indicates the TO-220AB package. Ensure the part meets required high-reliability standards for your design. Check datasheet specifications for thermal resistance values to validate heat sinking requirements. Cross-reference with current onsemi product portfolios for availability status.

Single Bipolar Transistors Selection Notes

Select this component when circuit designs require high voltage isolation combined with low current handling capabilities. The TO-220AB package facilitates through-hole mounting and heatsink attachment. Consider the 1200V rating for primary side applications in isolated power supplies. Evaluate thermal dissipation needs based on the 0.01A current limit and operating duty cycle.

Single Bipolar Transistors Part Context

This transistor belongs to the class of high-voltage discrete semiconductors used in power electronics. Originally manufactured by SANYO, these devices are now often associated with onsemi's portfolio following corporate acquisitions. The 2SC series designation typically indicates Japanese industrial standard components adapted for global power management solutions.

Single Bipolar Transistors Replacement Considerations

Check for direct equivalents from onsemi or other manufacturers offering 1200V NPN transistors in TO-220 packages. Verify pinout compatibility and thermal characteristics before substitution. Ensure replacement parts meet the same high-reliability criteria if used in critical applications.