2SB1228

Single Bipolar Transistors Overview

The onsemi 2SB1228 is a PNP silicon epitaxial planar transistor designed for high-current switching applications. It features a low collector-to-emitter saturation voltage and wide safe operating area (ASO) to ensure robust performance under demanding conditions. The device is housed in a compact surface-mount package, facilitating automated assembly and high-density board layouts. Key electrical characteristics include a maximum collector current of 5 Amperes and a collector-emitter breakdown voltage of 50 Volts. These specifications make it suitable for relay drivers, high-speed inverters, converters, and general-purpose power switching circuits where efficiency and reliability are critical.

Single Bipolar Transistors Feature Summary

• Low saturation collector-to-emitter voltage for improved efficiency
• Wide Safe Operating Area (ASO) providing high resistance to breakdown
• Designed for optimal automated board assembly in compact packages

Single Bipolar Transistors Applications

• Relay drivers
• High-speed inverters
• Converters
• General high-current switching applications

Single Bipolar Transistors Procurement Notes

Verify the specific suffix codes against official datasheets to confirm exact packaging and tape-and-reel specifications. Ensure compliance with RoHS directives if lead-free variants are required for your manufacturing process. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and authenticity before procurement.

Single Bipolar Transistors Selection Notes

Select this component when designing circuits requiring moderate voltage handling up to 50V and continuous currents around 5A. Consider its low VCE(sat) for minimizing power loss in switching loads. Evaluate thermal management requirements based on the specific package type and ambient operating conditions to ensure reliable operation within the specified temperature range.

Single Bipolar Transistors Part Context

This device belongs to the family of bipolar junction transistors (BJTs) optimized for power switching. It complements NPN counterparts like the 2SD1803 in complementary pairs. The design focuses on reducing footprint while maintaining high current capability, addressing the need for smaller, more efficient power electronics in modern consumer and industrial equipment.

Single Bipolar Transistors Replacement Considerations

Check for direct pin-compatible alternatives such as the 2SB1136 or 2SB826 from various manufacturers. Verify that substitute parts meet or exceed the 50V breakdown voltage and 5A current ratings. Ensure the replacement maintains similar saturation voltage characteristics to preserve circuit efficiency.