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Product Detailed Parameters
- Description：TRANS NPN 45V 0.5A SOT-323
- Series：BC817W-Q
- Mfr：Nexperia USA Inc.
- Package：Tape & Reel (TR)
- 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：200 mW
- Frequency - Transition：100MHz
- Operating Temperature：150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SC-70, SOT-323
- Supplier Device Package：SOT-323
- Grade：Automotive
- Qualification：AEC-Q101
Download product information
Overview
The BC817-40W-Q is an NPN general-purpose transistor manufactured by Nexperia USA Inc., housed in a very small SOT323 (SC-70) surface-mounted device plastic package. It features a collector-emitter voltage of 45 V and a continuous collector current of 500 mA, with a peak collector current capability of 1 A for single pulses up to 1 ms. The device offers a DC current gain range of 250 to 600 at IC = 100 mA and VCE = 1 V. It operates within a junction temperature range of -65 °C to 150 °C and has been qualified according to the AEC-Q101 standard.
Feature Summary
- Qualified according to AEC-Q101 and recommended for use in automotive applications
- High current capability suitable for demanding switching loads
- Three current gain selections available within the series
Applications
- General-purpose switching
- Amplification circuits
- Automotive electronics
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging and marking codes. Confirm that the component meets the required AEC-Q101 qualification standards for your intended automotive application. Check the most recent product data sheet for any updates regarding availability or design changes before finalizing procurement plans.
Selection Notes
Select this component when a compact SOT323 footprint is required for NPN switching or amplification tasks. Ensure the circuit design accommodates the 45 V collector-emitter voltage limit and the 500 mA continuous current rating. Consider the thermal resistance characteristics if operating near maximum power dissipation limits in free air or on FR4 PCBs.
Part Context
This part belongs to the BC817W-Q series of NPN general-purpose transistors. The series includes variants with different current gain ranges, such as BC817-16W-Q and BC817-25W-Q. All members share the same SOT323 package and electrical voltage/current ratings, differing primarily in their hFE selection groups.
Replacement Considerations
BC817-40W,115
FAQ
What is the marking code for the BC817-40W-Q?
The marking code is 6C%, where % represents a placeholder for the manufacturing site code.
Is the BC817-40W-Q suitable for automotive applications?
Yes, the product has been qualified according to the AEC-Q101 standard and is recommended for use in automotive applications.
What is the peak collector current capability?
The peak collector current (ICM) is 1 A for a single pulse with a duration tp ≤ 1 ms at Tamb = 25 °C.
