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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),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：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
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Overview
The Nexperia BC817-40W-Q is an NPN general-purpose transistor housed in a SOT323 (SC-70) surface-mount package. It supports a maximum collector-emitter voltage of 45 V and a continuous collector current of 500 mA, with a peak pulse current capability of 1 A. The device features a DC current gain range of 250 to 600 at IC = 100 mA and VCE = 1 V. Total power dissipation is rated at 200 mW at 25 °C ambient temperature. Operating junction temperatures extend from -65 °C to +150 °C.
Feature Summary
- Qualified according to AEC-Q101 for automotive applications
- High current handling capability up to 500 mA
- Three distinct current gain selection groups available
Applications
- General-purpose switching circuits
- Signal amplification stages
- Automotive electronic systems
Procurement Notes
Verify the specific ordering suffix matches the required tape-and-reel quantity or cut-tape format. Confirm that the component marking code '6C' corresponds to the intended production batch. Ensure the design accounts for the thermal resistance values provided in the datasheet under standard FR4 PCB mounting conditions.
Selection Notes
Select this variant when high current gain is required alongside automotive qualification standards. The SOT323 package offers a compact footprint suitable for space-constrained designs. Compare against BC817-16W-Q or BC817-25W-Q if lower gain thresholds are acceptable for the specific circuit requirements.
Part Context
This component belongs to the BC817W-Q series of NPN transistors manufactured by Nexperia. The series includes variants with different gain ranges (-16, -25, -40) sharing identical electrical limits and packaging. The PNP complement within this qualified series is the BC807-40W-Q.
Replacement Considerations
BC817-40W,115
FAQ
What is the marking code for the BC817-40W-Q?
The marking code is '6C', followed by a placeholder character representing the manufacturing site code.
Is this component suitable for automotive use?
Yes, the BC817W-Q series is qualified according to the AEC-Q101 stress test standard for discrete semiconductors.
What is the peak collector current rating?
The peak collector current (ICM) is rated at 1 A for single pulses with a duration of 1 ms or less.
