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Product Detailed Parameters
- Description：TRANS NPN 45V 0.5A DFN1412D-3
- Series：BC817QCH-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：455 mW
- Frequency - Transition：100MHz
- Operating Temperature：175°C (TJ)
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：3-XDFN Exposed Pad
- Supplier Device Package：DFN1412D-3
- Grade：Automotive
- Qualification：AEC-Q101
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Overview
The Nexperia BC817-40QCH-Q is an NPN general-purpose transistor housed in a DFN1412D-3 (SOT8009) leadless surface-mounted package. It supports a 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 100 mA. It operates within a junction temperature range up to 175 °C and is qualified according to the AEC-Q101 standard for automotive applications.
Feature Summary
- High power dissipation capability suitable for demanding thermal environments
- Ultra-small footprint with side-wettable flanks designed for Automatic Optical Inspection
- Qualified for high-temperature applications up to 175 °C junction temperature
- Automotive-grade reliability compliant with AEC-Q101 standards
Applications
- General-purpose switching and amplification circuits
- Space-restricted electronic designs requiring compact footprints
- Automotive electronics systems
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging and reel specifications. Confirm that the component meets the required AEC-Q101 qualification status for your target application environment. Cross-reference the marking code '8Y' on the physical device to validate authenticity and part identity before integration into production lines.
Selection Notes
Select this component when a compact SMD solution with high thermal tolerance is required. The DFN1412D-3 package offers a smaller footprint compared to conventional leaded packages while maintaining robust current handling. Ensure the design accommodates the specific thermal resistance characteristics and soldering requirements associated with the leadless side-wettable flank construction.
Part Context
This device belongs to the BC817QCH-Q series, which includes variants with different current gain selections such as BC817-16QCH-Q and BC817-25QCH-Q. All series members share the same ultra-thin DFN1412D-3 package and automotive qualification profile, providing designers with standardized form factors for various gain requirements in space-constrained applications.
Replacement Considerations
Direct substitutes include other BC817-40 variants in different packages like SOT-23 or SOT-323, provided thermal and spatial constraints allow. Verify pinout compatibility and ensure alternative components meet the same AEC-Q101 automotive qualification if used in vehicle systems.
