BD242A-S

Overview

The BD242A-S is a PNP bipolar junction transistor manufactured by Bourns Inc., designed for general-purpose switching and amplification applications. It features a maximum DC collector current of 3 A and a collector-emitter voltage rating of 60 V. The device has an emitter-base voltage limit of 5 V and a minimum DC current gain (hFE) of 25. Packaged in a TO-220 form factor, this component is lead-free and RoHS compliant, suitable for power supply designs and industrial electronics requiring robust single-transistor performance.

Feature Summary

• High current handling capability with a 3 A maximum DC collector current rating
• Robust voltage tolerance supporting up to 60 V collector-emitter operation
• Lead-free construction ensuring compliance with RoHS environmental standards

Applications

• Power supply circuit design
• Industrial control systems
• General-purpose switching applications

Procurement Notes

Verify the obsolete status of the BD242A-S before procurement planning. Confirm availability through authorized distributors or secondary markets. Ensure substitute components like the MJE2955T meet all electrical requirements. Check for RoHS compliance documentation if required for specific manufacturing processes. Validate package integrity upon receipt.

Selection Notes

Select this component for applications requiring a PNP transistor with 3 A current capacity and 60 V voltage rating. Consider the TO-220 package for thermal management needs. Evaluate the hFE minimum of 25 for gain requirements. Compare against substitutes like the MJE2955T if original stock is unavailable. Ensure compatibility with existing circuit topology and thermal constraints.

Part Context

The BD242A-S belongs to Bourns Inc.'s single bipolar transistor lineup. It serves as a discrete semiconductor device for power management tasks. The product line emphasizes reliability and standard packaging formats. This specific model targets general-purpose electronic designs needing moderate power handling capabilities within defined voltage limits.

Replacement Considerations

The MJE2955T from STMicroelectronics is listed as a similar available substitute. Verify pinout compatibility and electrical parameter alignment before substitution. Ensure the replacement meets the same 3 A and 60 V specifications. Check package similarity for mechanical fit.