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Product Detailed Parameters
- Description：TRANS NPN 45V 0.5A SOT-323
- Series：-
- Mfr：Diotec Semiconductor
- Package：Bulk
- 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：160 @ 100mA, 1V
- Power - Max：200 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 Diotec Semiconductor BC817-25W is a single NPN general-purpose bipolar junction transistor (BJT) housed in an SOT-323 surface-mount package. It features a maximum collector current of 500 mA and a collector-emitter voltage rating of 45 V. The device provides a DC current gain (hFE) range of 160 to 400 at 100 mA, with a transition frequency of 100 MHz. Power dissipation is rated at 200 mW, and the operating junction temperature extends up to 150°C.
Feature Summary
- Three distinct current gain groups available for precise amplification control
- Compliant with RoHS directives and REACH regulations
- Suitable for automatic optical inspection of solder joints
Applications
- General-purpose signal processing
- Electronic switching circuits
- Amplification stages
Procurement Notes
Verify the specific suffix against official documentation to confirm compliance status. Standard versions are commercial/industrial grade. Suffixes -Q indicate AEC-Q101 compliance, while -AQ indicates qualification in progress. Confirm package type and marking codes match design requirements before integration.
Selection Notes
Select this component for applications requiring low-power NPN switching or amplification in space-constrained designs. Ensure the required hFE group aligns with circuit gain specifications. Verify thermal management capabilities given the 200 mW power dissipation limit in the small SOT-323 footprint.
Part Context
This part belongs to the BC817W series of SMD general-purpose NPN transistors manufactured by Diotec Semiconductor. It serves as a compact alternative to larger packages like SOT-23, offering similar electrical characteristics in the smaller SOT-323 form factor suitable for high-density PCB layouts.
Replacement Considerations
BC817-16W
FAQ
What is the maximum collector-emitter voltage for the BC817-25W?
The maximum collector-emitter voltage (VCEO) is 45 V.
Does the standard BC817-25W meet automotive standards?
No, the standard version is commercial/industrial grade. Only variants with the -Q suffix are AEC-Q101 compliant.
What is the recommended complementary PNP transistor?
The recommended complementary PNP transistor is the BC807W.
