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Product Detailed Parameters
- Description：TRANS PNP 80V 3A TO-220AB
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Tube
- Transistor Type：PNP
- Current - Collector (Ic) (Max)：3:00 AM
- Voltage - Collector Emitter Breakdown (Max)：80 V
- Vce Saturation (Max) @ Ib, Ic：1.2V @ 600mA, 3A
- Current - Collector Cutoff (Max)：300µA
- DC Current Gain (hFE) (Min) @ Ic, Vce：25 @ 1A, 4V
- Power - Max：2 W
- Frequency - Transition：-
- Operating Temperature：-
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220AB
- Grade：-
- Qualification：-
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Overview
The BD242B is a PNP epitaxial silicon power transistor manufactured by Fairchild Semiconductor. It is housed in a TO-220AB flange mount package with three terminals. The device supports a maximum collector current of 3 A and a collector-emitter voltage of 80 V. It features a minimum DC current gain (hFE) of 10. The component is lead-free and RoHS compliant, designed for medium power linear and switching applications.
Feature Summary
- PNP polarity configuration utilizing epitaxial silicon planar technology
- Flange mount construction for effective thermal dissipation
- Lead-free and RoHS compliant manufacturing process
Applications
- Medium power linear applications
- Switching applications
- Complementary pairing with BD244 series NPN transistors
Procurement Notes
Verify the manufacturer designation matches Fairchild Semiconductor specifications. Confirm the package type is TO-220AB with flange mounting capability. Ensure compliance requirements align with lead-free and RoHS standards. Check terminal count to confirm three-pin configuration. Validate electrical ratings against system requirements before integration.
Selection Notes
Select this component for designs requiring a PNP power transistor with 80 V collector-emitter voltage tolerance. The 3 A continuous collector current rating suits moderate power loads. The TO-220AB package facilitates heatsink attachment for thermal management. Consider complementary NPN devices like the BD244 series for push-pull configurations.
Part Context
The BD242B belongs to the BD243/A/B/C family of medium power transistors. It serves as the PNP counterpart to the BD244 series NPN transistors. This family is engineered for robust performance in linear and switching circuits. The TO-220AB package provides a standardized form factor for industrial and commercial electronics.
Replacement Considerations
The BD242B is officially documented as a complement to the BD244, BD244A, BD244B, and BD244C NPN transistors. Verify pinout compatibility when substituting with other PNP power transistors from different manufacturers.
