BC337-25 TIN/LEAD

Single Bipolar Transistors Overview

The BC337-25 TIN/LEAD is an NPN silicon epitaxial planar transistor manufactured by Central Semiconductor Corp. It is housed in a TO-92 (10D3) plastic package with three leads. The device is designed for general-purpose amplifier and switching applications, featuring a maximum collector current of 800 mA and a collector-emitter voltage rating of 45 V. It offers a minimum DC current gain (hFE) of 160, classifying it within the -25 gain group. The component supports a maximum power dissipation of 625 mW and operates at junction temperatures up to 150 °C.

Single Bipolar Transistors Feature Summary

• NPN silicon epitaxial planar construction for reliable signal amplification
• High DC current gain grouping ensures consistent performance in driver stages
• TO-92 plastic encapsulation provides mechanical stability and thermal management

Single Bipolar Transistors Applications

• General-purpose audio frequency amplifiers
• Driver transistors in output stages
• Low-power switching circuits

Single Bipolar Transistors Procurement Notes

Verify that the ordering suffix explicitly indicates tin/lead plating, as many modern variants are lead-free. Confirm the manufacturer is Central Semiconductor Corp, as BC337-25 is a legacy designation produced by multiple vendors including ON Semiconductor and Fairchild. Ensure the datasheet matches the specific electrical characteristics required for the application, particularly the hFE range.

Single Bipolar Transistors Selection Notes

Select this component when a standard NPN small-signal transistor with moderate current handling is required. The -25 suffix denotes a specific binning of current gain, typically ranging from 160 to higher values, which is suitable for applications requiring predictable amplification factors. Compare against other manufacturers' equivalents if supply chain constraints exist, ensuring pinout compatibility in the TO-92 package.

Single Bipolar Transistors Part Context

The BC337 series is a widely used family of NPN general-purpose transistors. The BC337-25 variant specifically refers to the version with a minimum hFE of 160. While originally associated with Motorola/Fairchild specifications, Central Semiconductor produces this part under license or equivalent standards. It serves as a fundamental discrete semiconductor component in analog and digital circuit design.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include BC337-25 parts from ON Semiconductor, Diotec, or Taiwan Semiconductor. Verify that replacement units maintain the same TO-92 pinout (Collector-Base-Emitter) and meet the 800 mA / 45 V ratings.