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Product Detailed Parameters
- Description：TRANS NPN 45V 0.8A SOT23-3
- Series：-
- Mfr：Diotec Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Transistor Type：NPN
- Current - Collector (Ic) (Max)：800 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：310 mW
- Frequency - Transition：100MHz
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3 (TO-236)
- Grade：Automotive
- Qualification：AEC-Q101
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Overview
The Diotec Semiconductor BC817-40-Q is an SMD general-purpose NPN transistor housed in a SOT-23 (TO-236) package. It features a collector-emitter voltage of 45 V, a maximum DC collector current of 800 mA, and power dissipation of 310 mW. The device complies with AEC-Q101 standards and offers three gain groups, with the -40 variant providing a minimum hFE of 250 at 100 mA. Operating temperatures range from -55°C to +150°C.
Feature Summary
- AEC-Q101 compliant automotive-grade qualification
- Three distinct DC current gain groupings for precise selection
- RoHS compliant without exemptions and REACH registered
Applications
- Signal processing circuits
- General switching applications
- Amplification stages
Procurement Notes
Verify that the specific ordering code includes the '-Q' suffix to confirm AEC-Q101 compliance. Confirm the required DC current gain group (-16, -25, or -40) matches the design specifications. Ensure the component is sourced directly from authorized channels to guarantee authenticity and traceability.
Selection Notes
Select this component when automotive reliability standards are mandatory. The -40 suffix indicates a minimum hFE of 250, suitable for high-gain requirements. Verify thermal management capabilities, as the 310 mW dissipation limit depends on PCB copper pad area and ambient temperature conditions.
Part Context
This part belongs to the BC817 series of SMD universal NPN transistors manufactured by Diotec Semiconductor. The series covers various voltage ratings and gain groups within the compact SOT-23 footprint, designed for standard commercial and industrial applications requiring small-signal handling.
Replacement Considerations
BC817-40-AQ
FAQ
What does the '-Q' suffix indicate for this component?
The '-Q' suffix denotes that the component is AEC-Q101 compliant.
What is the minimum DC current gain for the BC817-40 variant?
The minimum DC current gain (hFE) is 250 when measured at IC = 100 mA and VCE = 1 V.
Is this transistor RoHS compliant?
Yes, the component is compliant with RoHS regulations without exemptions.
