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Product Detailed Parameters
- Description：BC850CW-Q/SOT323/SC-70
- Series：*
- Mfr：Nexperia USA Inc.
- Package：Tape & Reel (TR)
- Transistor Type：-
- Current - Collector (Ic) (Max)：-
- Voltage - Collector Emitter Breakdown (Max)：-
- Vce Saturation (Max) @ Ib, Ic：-
- Current - Collector Cutoff (Max)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：-
- Power - Max：-
- Frequency - Transition：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The BC850CW-QX is an NPN general-purpose bipolar junction transistor manufactured by Nexperia. It is housed in a SOT-323 (SC-70) surface-mount plastic package. The device features a maximum collector current of 100 mA and a collector-emitter voltage rating of 45 V. Key electrical parameters include a collector-base voltage of 50 V, an emitter-base voltage of 5 V, and a power dissipation of 200 mW. The transition frequency is specified at 100 MHz, with a minimum DC current gain of 420 at 2 mA and 5 V. The component operates within a temperature range of -65 °C to +150 °C.
Feature Summary
- Automotive-grade qualification compliant with AEC-Q101 standards for reliability in critical applications.
- Low noise performance suitable for sensitive signal processing tasks.
- Compact SOT-323 surface-mount package designed for space-constrained PCB layouts.
Applications
- General purpose switching circuits
- Amplification stages in audio or RF signals
- Automotive electronic systems requiring AEC-Q101 compliance
Procurement Notes
Verify the specific suffix 'QX' against official Nexperia documentation to confirm automotive grade status and tape-and-reel packaging details. Ensure the ordering part number matches the exact variant required for your bill of materials. Cross-reference with authorized distributors to validate authenticity and traceability. Confirm RoHS compliance and lead times directly with the supplier before finalizing procurement orders.
Selection Notes
Select this component when an NPN transistor with high current gain and low noise characteristics is required in a small form factor. The AEC-Q101 qualification makes it suitable for automotive environments where long-term reliability is critical. Compare its 45 V breakdown voltage and 100 mA current limit against circuit requirements to ensure adequate headroom. Consider the SOT-323 package dimensions for thermal management and board space constraints.
Part Context
The BC850CW-QX belongs to the BC850 series of NPN general-purpose transistors from Nexperia. This series is widely used in consumer electronics and industrial applications due to its balance of performance and cost. The 'Q' suffix typically denotes automotive qualification, while 'CW' indicates the SOT-323 package and specific binning. It serves as a complement to PNP devices like the BC860 series.
Replacement Considerations
Direct substitutes may include other AEC-Q101 qualified NPN transistors in SOT-323 packages with similar electrical ratings. Verify pinout compatibility and thermal characteristics before substitution. Generic equivalents without automotive qualification may not meet reliability standards for automotive applications.
