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Product Detailed Parameters
- Description：TRANS NPN 45V 0.5A SOT-323
- Series：-
- Mfr：Panjit International Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Transistor Type：NPN
- Current - Collector (Ic) (Max)：500 mA
- Voltage - Collector Emitter Breakdown (Max)：45 V
- Vce Saturation (Max) @ Ib, Ic：700mV @ 50mA, 500mA
- Current - Collector Cutoff (Max)：100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce：250 @ 100mA, 1V
- Power - Max：300 mW
- Frequency - Transition：100MHz
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SC-70, SOT-323
- Supplier Device Package：SOT-323
- Grade：Automotive
- Qualification：AEC-Q101
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Overview
The BC817-40W-AU_R2_000A1 is a silicon NPN epitaxial general-purpose transistor manufactured by Panjit International Inc. It operates with a collector-emitter voltage of 45 V and supports a maximum DC collector current of 500 mA. The device features a minimum DC current gain (hFE) of 250 at IC=100mA, VCE=1V, and a transition frequency of 100 MHz. Packaged in an SOT-323 case, it has a total power dissipation rating of 300 mW and complies with AEC-Q101 automotive qualification standards.
Feature Summary
- High DC current gain characteristics suitable for amplification
- Automotive-grade reliability via AEC-Q101 qualification
- Lead-free construction compliant with EU RoHS 2.0 directives
Applications
- General-purpose amplifier circuits
- General-purpose switching applications
- Low-voltage signal processing stages
Procurement Notes
Verify the specific ordering suffix matches the required reel quantity and marking code. Confirm that the component meets the intended environmental specifications, as the datasheet indicates compliance with lead-free and halogen-free standards. Ensure the application does not involve life-saving or aerospace equipment, which are explicitly excluded from warranty coverage.
Selection Notes
Select this component when a compact SOT-323 package is required for space-constrained designs. The high hFE range makes it appropriate for low-current amplification tasks where minimal base drive is available. Consider the complementary BC807W-AU series if PNP configurations are also needed for push-pull or differential circuit topologies.
Part Context
This part belongs to the BC817-W-AU series of silicon NPN transistors designed for surface-mount assembly. It shares the same electrical profile as the standard BC817-40 but utilizes the smaller SOT-323 footprint. The series is engineered for cost-effective mass production while maintaining automotive-grade consistency across temperature ranges.
Replacement Considerations
BC817-40 (Nexperia)
FAQ
What is the marking code for the BC817-40W-AU?
The device marking code is 8W.
Is this transistor qualified for automotive applications?
Yes, the BC817-40W-AU series is AEC-Q101 qualified.
What is the maximum collector current pulse rating?
The maximum collector current pulse (ICP) rating is 1000 mA.
