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Product Detailed Parameters
- Description：TRANS PNP 45V 0.1A SOT-323
- Series：-
- Mfr：Diotec Semiconductor
- 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：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 BC857AW is a general-purpose PNP epitaxial silicon planar transistor housed in an SOT-323 surface-mount package. It features a maximum collector current of -100 mA and a power dissipation rating of 200 mW at 25°C ambient temperature. The device offers a collector-emitter breakdown voltage (VCEO) of -45 V and a collector-base breakdown voltage (VCBO) of -50 V. DC current gain (hFE) is categorized into three groups: Group A (125–250), Group B (220–475), and Group C (420–800). The transition frequency (fT) is typically 100 MHz, with a junction temperature range of -55°C to +150°C.
Feature Summary
- General-purpose design utilizing epitaxial silicon planar technology for reliable switching and amplification.
- Three distinct DC current gain groupings (A, B, and C) to accommodate varying circuit gain requirements.
- Compliant with RoHS directives, REACH regulations, and conflict mineral standards.
Applications
- Signal processing circuits
- General switching applications
- Audio frequency (AF) amplifier stages
Procurement Notes
Verify the specific suffix designation when ordering. The standard 'AW' suffix denotes commercial/industrial grade components. The '-Q' suffix indicates AEC-Q101 compliance, while the '-AQ' suffix signifies AEC-Q101 qualification. Confirm that the required automotive or industrial reliability level matches the ordered suffix before finalizing procurement specifications.
Selection Notes
Select the appropriate hFE grouping based on the required signal amplification factor; Group C provides the highest gain suitable for sensitive pre-amplification, whereas Group A offers tighter gain tolerances. Ensure the operating collector current remains within the 100 mA continuous limit and verify that the applied voltages do not exceed the 45 V VCEO or 50 V VCBO ratings under all transient conditions.
Part Context
This component belongs to the BC856W through BC859W series of universal PNP transistors manufactured by Diotec Semiconductor. These devices are designed as complementary pairs to the BC846W through BC849W NPN transistors, facilitating push-pull output configurations and totem pole driver circuits in compact surface-mount designs.
Replacement Considerations
BC857BW
FAQ
What is the difference between the BC857AW and BC857AW-AQ?
The BC857AW is a standard commercial/industrial grade component. The BC857AW-AQ suffix indicates that the device is qualified according to the AEC-Q101 automotive standard, ensuring higher reliability for automotive environments.
How does the DC current gain vary across the available groups?
The BC857AW is available in three gain groups measured at -IC = 2 mA and -VCE = 5 V: Group A ranges from 125 to 250, Group B ranges from 220 to 475, and Group C ranges from 420 to 800.
