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Product Detailed Parameters
- Description：TRANS NPN 45V 0.5A SOT-323
- Series：-
- 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：-
- Qualification：-
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Overview
The Nexperia BC817-40W is an NPN general-purpose transistor housed in a SOT323 (SC-70) surface-mount package. It supports a collector current of 500 mA and a collector-emitter voltage of 45 V. The device features a DC current gain range of 250 to 600 at IC = 100 mA and VCE = 1 V. Peak collector current reaches 1 A for single pulses up to 1 ms. Total power dissipation is rated at 200 mW at Tamb ≤ 25 °C, with a junction temperature limit of 150 °C.
Feature Summary
- High current capability suitable for demanding switching loads
- Three distinct current gain selections available within the series
Applications
- General-purpose switching circuits
- Amplification applications
Procurement Notes
Verify the specific ordering suffix against official Nexperia documentation to confirm exact packaging and marking codes. Confirm that the procurement matches the non-automotive qualification status defined in the Rev. 8 datasheet. Ensure component authenticity through authorized distribution channels to avoid counterfeit risks.
Selection Notes
Select this component when a compact SOT323 footprint is required for NPN switching tasks. The BC817-40W variant provides higher minimum current gain compared to other series options. Verify thermal management requirements as power dissipation decreases with rising ambient temperatures.
Part Context
This part belongs to the BC817W series of NPN general-purpose transistors. It serves as the complement to the BC807W PNP transistor family. The series offers multiple gain grades to accommodate different circuit sensitivity requirements while maintaining a standardized small outline package.
Replacement Considerations
BC817-40W
FAQ
Is the BC817-40W automotive qualified?
No, the product data sheet indicates the product has been changed to non-automotive qualification.
What is the maximum peak collector current?
The peak collector current is 1 A for single pulses with a duration of tp ≤ 1 ms.
