MPSA42-AP

Single Bipolar Transistors Overview

The MPSA42-AP is an NPN silicon high voltage transistor manufactured by Micro Commercial Components. It features a collector-emitter breakdown voltage of 300 V and a continuous collector current rating of 300 mA. The device operates within a junction temperature range of -55°C to +150°C and provides a DC current gain (hFE) ranging from 25 to 250 under specified test conditions. Packaged in a TO-92 case, it offers a power dissipation of 625 mW at 25°C case temperature.

Single Bipolar Transistors Feature Summary

• High voltage capability with 300 V collector-emitter breakdown
• Wide DC current gain range for flexible amplification applications
• RoHS compliant construction with lead-free finish
• Epoxy material meets UL 94 V-0 flammability rating

Single Bipolar Transistors Applications

• Telephone switching circuits
• General-purpose high voltage switching
• Driver stages for relay or lamp loads

Single Bipolar Transistors Procurement Notes

Verify the specific suffix '-AP' indicates ammo packing containing 20,000 pieces per carton when placing orders. Confirm RoHS compliance status as standard parts are lead-free. Ensure sourcing through authorized distributors to guarantee genuine components and full traceability, avoiding unauthorized sources that lack warranty coverage.

Single Bipolar Transistors Selection Notes

Select this component for designs requiring high voltage isolation up to 300 V with moderate current handling. The TO-92 package suits through-hole PCB layouts. Consider the thermal resistance of 200°C/W junction-to-ambient for natural convection cooling requirements. Verify hFE binning needs against circuit gain specifications.

Single Bipolar Transistors Part Context

This part belongs to the MPSA42/MPSA43 series of NPN silicon transistors designed for high voltage applications. The MPSA42 variant specifically provides a 300 V collector-emitter voltage rating, distinguishing it from lower voltage counterparts. It serves as a complement to PNP devices like the MPSA92.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include the UTC MPSA42G-T92-K. Verify pinout compatibility and electrical ratings match before substitution. Check manufacturer-specific marking codes and packaging differences.