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Product Detailed Parameters
- Description：TRANS NPN 45V 0.5A PG-SOT323
- Series：-
- Mfr：Infineon Technologies
- Package：Tape & Reel (TR)
- 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：250 mW
- Frequency - Transition：170MHz
- Operating Temperature：150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SC-70, SOT-323
- Supplier Device Package：PG-SOT323
- Grade：-
- Qualification：-
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Overview
The BC817K25WE6327HTSA1 is an NPN silicon audio frequency (AF) transistor manufactured by Infineon Technologies. It operates with a collector-emitter voltage of 45 V and a maximum continuous collector current of 500 mA. The device features a DC current gain ranging from 160 to 400 at 100 mA, with a transition frequency of 170 MHz. Total power dissipation is rated at 500 mW in the SOT-23 package and 250 mW in the SOT-323 package. It complies with AEC-Q101 standards and RoHS requirements.
Feature Summary
- Designed for general audio frequency applications with high current gain capabilities
- Features low collector-emitter saturation voltage for efficient switching
- Qualified according to AEC-Q101 automotive electronic council standards
- Available in lead-free packages compliant with RoHS directives
Applications
- General audio frequency signal amplification
- Low-voltage switching circuits
- Driver stages for audio equipment
Procurement Notes
Verify the specific suffix 'W' against official documentation to confirm the package type, as it indicates either SOT-23 or SOT-323 depending on the variant. Confirm that the component meets AEC-Q101 qualification if used in automotive contexts. Ensure the ordering code matches the required hFE group for the intended circuit design.
Selection Notes
Select this component when a robust NPN transistor with high current handling is required for audio or switching tasks. The choice between SOT-23 and SOT-323 depends on available board space and thermal management needs. Verify the required current gain bin (hFE group) to ensure compatibility with the target circuit's biasing conditions.
Part Context
This part belongs to the BC817K series of NPN silicon transistors designed for audio frequency applications. It shares characteristics with other members of the family but is distinguished by its specific voltage rating and packaging options. The series is widely used in consumer electronics and industrial control systems requiring reliable small-signal performance.
Replacement Considerations
Check for direct substitutes within the BC817K family such as BC817K-16 or BC817K-40, ensuring voltage ratings match the application. Cross-reference with other manufacturers' NPN transistors offering similar 45V VCEO and 500mA IC specifications.
