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Product Detailed Parameters
- Description：TRANS NPN 45V 1A SOT-223-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Transistor Type：NPN
- Current - Collector (Ic) (Max)：1:00 AM
- Voltage - Collector Emitter Breakdown (Max)：45 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：2 W
- Frequency - Transition：150MHz
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-261-4, TO-261AA
- Supplier Device Package：SOT-223-3
- Grade：-
- Qualification：-
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Overview
The BCP54TA is an NPN medium power bipolar junction transistor manufactured by Diodes Incorporated. It utilizes silicon technology and is housed in a surface-mount SOT-223-4 package. The device supports a maximum continuous collector current of 1 A and a collector-emitter voltage (VCEO) of 45 V. Key electrical characteristics include a collector-base voltage (VCBO) of 60 V, an emitter-base voltage (VEBO) of 5 V, and a DC current gain (hFE) ranging from 100 to 250. It features a power dissipation rating of 2 W, a transition frequency (fT) of 100 MHz, and operates within a temperature range of -55 °C to +150 °C.
Feature Summary
- NPN polarity configuration for single-ended switching and amplification applications
- Medium power handling capability with high continuous collector current
- Complementary PNP type availability within the same series family
Applications
- General-purpose amplifier circuits
- Switching applications requiring medium power control
- Driver stages in consumer electronics
Procurement Notes
Verify the specific hFE binning grade required for the application, as gain ranges vary. Confirm the suffix TA indicates the standard tape-and-reel packaging format. Ensure compatibility with RoHS directives if environmental compliance is mandatory. Cross-reference datasheet thermal resistance values against the intended PCB copper area for adequate heat dissipation during operation.
Selection Notes
Select this component when an NPN transistor with 1 A current capacity and 45 V breakdown voltage is needed. Consider the complementary BCP53TA for push-pull configurations. Evaluate the SOT-223-4 footprint constraints against available board space. Verify that the 2 W power dissipation rating aligns with the thermal management strategy of the final assembly.
Part Context
This part belongs to the BCP5x series of medium power transistors designed for general-purpose use. The series includes complementary NPN (BCP54/55/56) and PNP (BCP51/52/53) variants. These devices are optimized for applications requiring reliable performance in compact surface-mount designs, offering a balance between current handling and voltage ratings.
Replacement Considerations
Direct substitutes include other NPN SOT-223 transistors with similar 1 A and 45 V specifications. Verify pinout compatibility and thermal characteristics before substitution.
