BC849A-AQ

$0.11

Description：TRANS NPN 30V 0.1A SOT23-3
Series：-

SKU:6cad33b8e9e1 Category: Single Bipolar Transistors Brand: Diotec Semiconductor

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Product introduction

Product Detailed Parameters

Description：TRANS NPN 30V 0.1A SOT23-3
Series：-
Mfr：Diotec Semiconductor
Package：Tape & Reel (TR),Cut Tape (CT)
Transistor Type：NPN
Current - Collector (Ic) (Max)：100 mA
Voltage - Collector Emitter Breakdown (Max)：30 V
Vce Saturation (Max) @ Ib, Ic：600mV @ 5mA, 100mA
Current - Collector Cutoff (Max)：15nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce：110 @ 2mA, 5V
Power - Max：250 mW
Frequency - Transition：300MHz
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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BC849A-AQ

Overview

The BC849A-AQ is an NPN general-purpose bipolar junction transistor manufactured by Diotec Semiconductor. It utilizes a SOT-23 (TO-236) surface-mount package and operates with a maximum collector current of 100 mA and a peak collector current of 200 mA. The device features a collector-emitter voltage rating of 30 V, a collector-base voltage of 30 V, and an emitter-base voltage of 5 V. Power dissipation reaches 300 mW in industrial and AEC-Q101 grades. The DC current gain (hFE) for Group A ranges from 110 to 220 at 2 mA and 5 V. The transition frequency is 300 MHz, and the operating temperature spans -55°C to +150°C.

Feature Summary

AEC-Q101 qualified automotive grade reliability
Utilizes gold bond wires for enhanced durability
Three distinct DC current gain groups available

Applications

Signal processing circuits
Electronic switching applications
General-purpose amplification stages

Procurement Notes

Verify that the specific part number includes the -AQ suffix to confirm AEC-Q101 qualification status. Ensure the ordering documentation explicitly references the Diotec Semiconductor datasheet version 2026-06-16 or later to validate the manufacturing specifications. Confirm compliance with RoHS directives and REACH regulations as stated in the official product documentation before finalizing procurement.

Selection Notes

Select this component when automotive-grade reliability is required for low-power signal processing or switching tasks. The BC849A-AQ offers a defined hFE range suitable for precise biasing requirements compared to standard commercial variants. Its small SOT-23 footprint allows for dense board layouts while maintaining robust thermal performance up to 150°C junction temperature.

Part Context

This transistor belongs to the BC846 through BC850 series of SMD general-purpose NPN transistors. The -AQ suffix specifically denotes AEC-Q101 qualification, distinguishing it from standard commercial (-C) or industrial grades. It serves as the NPN counterpart to the BC859A-AQ PNP transistor within the same family.

Replacement Considerations

BC849B-AQ

FAQ

What distinguishes the BC849A-AQ from the standard BC849A?

The BC849A-AQ is AEC-Q101 qualified for automotive applications, whereas the standard BC849A is an industrial grade component without this specific automotive certification.