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Product Detailed Parameters
- Description：TRANS PNP 80V 1A TO-92-3
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Transistor Type：PNP
- Current - Collector (Ic) (Max)：1:00 AM
- Voltage - Collector Emitter Breakdown (Max)：80 V
- Vce Saturation (Max) @ Ib, Ic：500mV @ 50mA, 500mA
- Current - Collector Cutoff (Max)：100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce：40 @ 150mA, 2V
- Power - Max：1 W
- Frequency - Transition：100MHz
- Operating Temperature：150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92-3
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Overview
The BC640TFR is a PNP epitaxial silicon transistor housed in a TO-92 package. It features a collector-emitter voltage (VCEO) of -80 V and a continuous collector current (IC) of -1 A. The device supports a peak collector current of -1.5 A and offers a DC current gain (hFE) ranging from 25 to 160 depending on the test condition. Key electrical parameters include a collector-emitter saturation voltage of -0.5 V at IC = -500 mA and IB = -50 mA, and a base-emitter on voltage of -1 V at IC = -500 mA. The maximum power dissipation is 1 W, with a junction temperature rating of 150 °C.
Feature Summary
- PNP epitaxial silicon construction for switching and amplifier applications
- Complements the BC639 NPN transistor within the same series
- High collector current capability of 1 A in a compact TO-92 plastic package
Applications
- General-purpose switching circuits
- Linear amplifier stages
- Driver circuits requiring PNP control
Procurement Notes
Verify the manufacturer origin, as the datasheet indicates Fairchild Semiconductor while other sources list onsemi or CDIL. Confirm the suffix 'TFR' corresponds to tape-and-reel packaging if required by assembly equipment. Ensure compliance with RoHS standards and check for specific lot traceability requirements to mitigate counterfeit risks during sourcing.
Selection Notes
Select this component when a PNP transistor with 1 A continuous current handling is needed alongside a matching NPN counterpart like the BC639. Consider the TO-92 package constraints for thermal management, noting the 1 W dissipation limit. Evaluate the hFE range suitability for the specific drive current requirements of the target application circuit.
Part Context
The BC640 belongs to a family of medium-power planar epitaxial transistors designed for general-purpose use. It serves as the PNP complement to the BC639 NPN transistor, facilitating push-pull configurations. Manufactured using silicon planar epitaxial technology, it provides reliable performance in standard through-hole mounting environments typical of consumer and industrial electronics.
Replacement Considerations
BC640BU, BC640TA, BC640TAR, BC640TF, BC639 (as complementary pair)
FAQ
What is the maximum collector-emitter voltage for the BC640?
The maximum collector-emitter voltage (VCEO) is -80 V.
Is the BC640 compatible with the BC639?
Yes, the datasheet explicitly states that the BC640 is the complement to the BC639.
What is the package type for the BC640TFR?
The BC640TFR utilizes a TO-92 plastic package.
