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Product Detailed Parameters
- Description：TRANS PNP 45V 0.1A SOT-523
- Series：-
- Mfr：MCC (Micro Commercial Components)
- Package：Bulk
- Transistor Type：PNP
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：45 V
- Vce Saturation (Max) @ Ib, Ic：650mV @ 5mA, 100mA
- Current - Collector Cutoff (Max)：15nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce：125 @ 2mA, 5V
- Power - Max：150 mW
- Frequency - Transition：100MHz
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SOT-523
- Supplier Device Package：SOT-523
- Grade：-
- Qualification：-
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Overview
The BC857AT-TP is a PNP signal transistor manufactured by Micro Commercial Components (MCC). It belongs to the BC857AT series and utilizes epitaxial die construction. The device is designed for switching and audio frequency amplifier applications. It features a lead-free finish that is RoHS compliant, with the 'P' suffix indicating compliance. The epoxy material used in the package meets UL 94 V-0 flammability ratings. The component has a Moisture Sensitivity Level (MSL) rating of 1, allowing for unlimited floor life under standard conditions.
Feature Summary
- Epitaxial die construction optimized for switching and AF amplifier applications
- Lead-free finish with RoHS compliance designated by the 'P' suffix
- Epoxy packaging material meeting UL 94 V-0 flammability standards
- Moisture Sensitivity Level 1 rating for extended storage flexibility
Applications
- General purpose switching circuits
- Audio frequency (AF) amplifier stages
Procurement Notes
Verify the specific datasheet version for the BC857AT-TP to confirm exact electrical limits such as collector-emitter breakdown voltage and DC current gain ranges. Ensure the ordering suffix matches the required compliance specifications. Check for any recent Product Change Notifications (PCN) regarding packaging or assembly updates from MCC before finalizing procurement orders.
Selection Notes
Select this component when a PNP bipolar junction transistor is required for low-power switching or audio amplification tasks. The BC857AT-TP offers a balance of reliability through its epitaxial construction and environmental compliance. Consider the SOT-23 package constraints for thermal management and board space requirements compared to higher power alternatives.
Part Context
This part is part of the broader BC857 family of PNP transistors produced by Micro Commercial Components. The BC857 series is widely recognized for general-purpose use in consumer electronics and industrial control systems. The AT variant specifically denotes the binning or performance grade within the series, ensuring consistent hFE characteristics for design predictability.
Replacement Considerations
Direct replacements include other BC857 variants from different manufacturers, provided they match the SOT-23 footprint and electrical ratings. Verify pinout compatibility and ensure substitute parts meet the same RoHS and UL 94 V-0 requirements if these are critical for the application.
