KSA642YTA

Single Bipolar Transistors Overview

The KSA642YTA is a PNP epitaxial silicon transistor manufactured by Fairchild Semiconductor. It is housed in a TO-92 cylindrical package with three leads. The device features a collector-base voltage of -30V, a collector-emitter voltage of -25V, and an emitter-base voltage of -5V. Maximum collector current is rated at -50mA, with a collector power dissipation of 250mW. The minimum DC current gain (hFE) is specified as 40. It operates within a junction temperature range of -55°C to +150°C.

Single Bipolar Transistors Feature Summary

• PNP epitaxial silicon construction for low frequency amplifier applications
• Low collector-emitter saturation voltage characteristic
• Complementary pairing available with the KSC184 NPN transistor

Single Bipolar Transistors Applications

• Low frequency amplification circuits
• General purpose switching applications
• Interface circuits requiring complementary PNP/NPN pairs

Single Bipolar Transistors Procurement Notes

Verify the specific datasheet revision and manufacturer documentation to confirm absolute maximum ratings and electrical characteristics. Ensure the TO-92 package configuration matches the design requirements. Check for RoHS compliance status and lead-free certification details relevant to the manufacturing batch before integration into production systems.

Single Bipolar Transistors Selection Notes

Select this component when a PNP small signal transistor with moderate current handling and low saturation voltage is required. Consider its complementarity with the KSC184 for push-pull or differential stage designs. Evaluate thermal management needs based on the 250mW dissipation rating and ensure the operating environment stays within the specified temperature limits.

Single Bipolar Transistors Part Context

This part belongs to the KSA series of PNP transistors from Fairchild Semiconductor. It is designed as a general-purpose discrete semiconductor device suitable for audio and RF amplifier stages. The TO-92 package provides a compact form factor for through-hole mounting on printed circuit boards.

Single Bipolar Transistors Replacement Considerations

The KSC184 is documented as the complementary NPN counterpart. Direct substitutes should match the -25V VCEO, -50mA IC, and TO-92 package constraints.