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Product Detailed Parameters
- Description：TRANS NPN 45V 0.5A SOT-323
- Series：BC817
- Mfr：Panjit International 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：300 mW
- Frequency - Transition：100MHz
- Operating Temperature：-55°C ~ 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 BC817-40_R1_00001 is an NPN general-purpose transistor from the Panjit BC817 series, housed in a plastic SOT-23 surface-mount package. It features an epitaxial silicon planar design with a collector-emitter voltage of 45 V and continuous collector current of 500 mA. The device supports a total power dissipation of 330 mW and operates within a junction temperature range of -55°C to +150°C. Electrical characteristics include a DC current gain (hFE) ranging from 250 to 600 at Ic=500mA, and a transition frequency (fT) of 100 MHz.
Feature Summary
- NPN epitaxial silicon planar design for general-purpose amplifier applications
- Halogen-free green molding compound compliant with IEC61249 standards
- Lead-free construction adhering to EU RoHS directives
Applications
- General purpose amplifier circuits
- Switching applications requiring low power dissipation
- Signal processing stages in consumer electronics
Procurement Notes
Verify the specific suffix R1_00001 against official Panjit documentation to confirm reel specifications and tape-and-reel dimensions. Ensure compatibility with standard SOT-23 footprint layouts during PCB design. Confirm that the ordering code matches the required hFE binning (BC817-40) for intended circuit performance.
Selection Notes
Select this component when a small-form-factor NPN transistor is required for low-power signal amplification or switching. The BC817-40 variant offers higher current gain compared to lower-bin versions, suitable for applications demanding consistent amplification factors. Verify thermal management requirements given the 330 mW power dissipation limit in the SOT-23 package.
Part Context
This part belongs to the BC817 series of NPN general-purpose transistors manufactured by Panjit International Inc. The series includes variants differentiated by current gain bins (BC817-16, BC817-25, BC817-40), all sharing identical electrical ratings and mechanical packaging. The device is designed for cost-effective mass production in consumer and industrial electronic assemblies.
Replacement Considerations
Compatible substitutes include other NPN transistors in SOT-23 packages with similar VCEO (≥45V), IC (≥500mA), and PTOT (≥330mW) ratings. Verify pinout compatibility and thermal resistance characteristics before substitution.
