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Product Detailed Parameters
- Description：TRANS NPN 45V 0.8A SOT-23
- Series：-
- Mfr：MCC (Micro Commercial Components)
- Package：Tape & Reel (TR),Cut Tape (CT)
- Transistor Type：NPN
- Current - Collector (Ic) (Max)：800 mA
- Voltage - Collector Emitter Breakdown (Max)：45 V
- Vce Saturation (Max) @ Ib, Ic：700mV @ 50mA, 500mA
- Current - Collector Cutoff (Max)：100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce：250 @ 100mA, 1V
- Power - Max：310 mW
- Frequency - Transition：100MHz
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23
- Grade：-
- Qualification：-
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Overview
The BC817-40-TP is a single NPN silicon general-purpose bipolar junction transistor manufactured by Micro Commercial Components. It is housed in an SOT-23 surface-mount package and designed for switching and amplification applications. The device supports a maximum collector-emitter voltage of 45V, a collector-base voltage of 50V, and an emitter-base voltage of 5V. It handles a continuous DC collector current of 500mA with a power dissipation rating of 250mW. Key electrical characteristics include a transition frequency of 100MHz and a collector-emitter saturation voltage of 700mV at specified currents. The component operates within a temperature range of -55°C to +150°C.
Feature Summary
- Single NPN configuration optimized for general-purpose signal processing and switching tasks
- High current handling capability suitable for low-voltage circuit applications
- Surface-mount construction facilitates automated assembly and compact board layouts
Applications
- General-purpose switching circuits
- Low-frequency amplification stages
- Driver interfaces for loads requiring moderate current levels
Procurement Notes
Verify the specific suffix against official MCC documentation to confirm exact electrical tolerances and packaging specifications. Ensure the procurement channel provides valid manufacturer traceability. Confirm RoHS compliance status directly from the latest datasheet revision before integration into regulated designs.
Selection Notes
Select this component when a standard NPN transistor with 45V blocking capability and 500mA current capacity is required. Compare the 250mW thermal limit against expected operating conditions. Verify that the SOT-23 footprint matches the target PCB design constraints and that the 100MHz bandwidth meets the application's frequency requirements.
Part Context
This part belongs to the BC817 series of NPN transistors produced by Micro Commercial Components. The series is widely utilized in consumer electronics and industrial control systems. The BC817-40 variant specifically denotes the 45V collector-emitter voltage rating, distinguishing it from other voltage grades within the same product family.
Replacement Considerations
Cross-reference with BC817-40 from Diotec Semiconductor or BC817-40,215 from Nexperia. Verify pinout compatibility and ensure equivalent voltage and current ratings are maintained during substitution.
