BC857B-AQ

$0.11

Description：TRANS PNP 45V 0.1A SOT23-3
Series：-

SKU:690cfb95834c Category: Single Bipolar Transistors Brand: Diotec Semiconductor

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Product introduction

Product Detailed Parameters

Description：TRANS PNP 45V 0.1A SOT23-3
Series：-
Mfr：Diotec Semiconductor
Package：Tape & Reel (TR),Cut Tape (CT)
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：220 @ 2mA, 5V
Power - Max：250 mW
Frequency - Transition：100MHz
Operating Temperature：-55°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：SOT-23-3 (TO-236)
Grade：Automotive
Qualification：AEC-Q101

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BC857B-AQ

Overview

The BC857B-AQ is a single PNP bipolar junction transistor manufactured by Diotec Semiconductor. It utilizes an epitaxial silicon planar structure housed in a compact SOT-23 (TO-236) surface-mount package. The device supports a maximum collector-emitter voltage of 45 V and a continuous collector current of 100 mA. Key electrical characteristics include a transition frequency of 100 MHz, a power dissipation rating of 250 mW, and a DC current gain minimum of 220 at specified test conditions. It operates within a temperature range of -55°C to +150°C.

Feature Summary

Automotive-grade reliability certified under AEC-Q101 standards for high durability
Epitaxial silicon planar construction ensuring stable performance
Compact SOT-23 surface-mount footprint for space-constrained designs

Applications

Automotive electronic control units
General-purpose switching circuits
Signal amplification stages

Procurement Notes

Verify the specific suffix 'AQ' corresponds to the AEC-Q101 automotive qualification when sourcing. Confirm the manufacturer is Diotec Semiconductor to ensure compliance with the documented specifications. Check the datasheet for exact hFE binning and thermal resistance values relevant to your specific operating environment before finalizing component selection.

Selection Notes

Select this component for applications requiring robust PNP switching or amplification in automotive environments. Ensure the design accommodates the 250 mW power dissipation limit and the 45 V voltage rating. Verify that the SOT-23 package thermal characteristics meet the system's heat management requirements under maximum load conditions.

Part Context

This part belongs to the BC857 series of PNP transistors from Diotec Semiconductor. The 'AQ' suffix specifically denotes adherence to AEC-Q101 automotive quality standards, distinguishing it from standard industrial variants. It serves as a complementary counterpart to NPN devices like the BC847 series within the same product family.