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Product Detailed Parameters
- Description：TRANS NPN 20V 1A SOT-223-4
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Tape & Reel (TR),Cut Tape (CT)
- Transistor Type：NPN
- Current - Collector (Ic) (Max)：1:00 AM
- Voltage - Collector Emitter Breakdown (Max)：20 V
- Vce Saturation (Max) @ Ib, Ic：500mV @ 100mA, 1A
- Current - Collector Cutoff (Max)：10µA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce：85 @ 500mA, 1V
- Power - Max：1.5 W
- Frequency - Transition：-
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-261-4, TO-261AA
- Supplier Device Package：SOT-223-4
- Grade：-
- Qualification：-
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Overview
The BCP68 is an NPN general-purpose medium power amplifier transistor manufactured by onsemi. It is housed in a SOT-223 surface-mount package with four terminals, where pin 1 is the base, pin 3 is the emitter, and pins 2 and 4 are connected to the collector. The device supports a maximum collector current of 1 A and a collector-emitter voltage of 20 V. Key electrical characteristics include a DC current gain ranging from 50 to 375 depending on operating conditions, a collector-emitter saturation voltage of 0.5 V at 1 A, and a total device dissipation of 1.5 W at 25°C ambient temperature.
Feature Summary
- Designed for general-purpose medium power amplification applications
- Features low collector-emitter saturation voltage for efficient switching
- High DC current gain capability across various operating currents
Applications
- General purpose medium power amplifiers
Procurement Notes
Verify the specific part number suffix against the official onsemi website, as Fairchild Semiconductor orderable part numbers may have been updated to remove underscores during integration. Confirm RoHS compliance status and check for any product change notices (PCN) or lifecycle status updates before finalizing procurement plans.
Selection Notes
Select this component when a single NPN transistor with a 1 A continuous collector current rating is required. Ensure the application operates within the specified 20 V collector-emitter voltage limit and that thermal management can maintain junction temperatures below 150°C given the 1.5 W power dissipation capability in the SOT-223 package.
Part Context
The BCP68 belongs to the BCP68 series of NPN transistors originally developed by Fairchild Semiconductor and now managed by onsemi. It serves as a standard solution for medium-power amplification tasks requiring surface-mount compatibility. The device utilizes process technology optimized for high current handling and reliable performance in general-purpose electronic circuits.
Replacement Considerations
Consult the official onsemi database for verified substitute part numbers. Cross-reference specifications such as package type, voltage ratings, and current gains to ensure functional equivalence.
