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Product Detailed Parameters
- Description：TRANS NPN 30V 0.1A SOT23-3
- Series：-
- Mfr：Diotec Semiconductor
- Package：Bulk
- 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：200 @ 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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Overview
The Diotec Semiconductor BC849B-AQ is an SMD general-purpose NPN transistor housed in a SOT-23 (TO-236) package. It features a collector-emitter voltage (VCEO) of 30 V and a maximum DC collector current (IC) of 100 mA. The device belongs to the 'B' gain group, providing a minimum DC current gain (hFE) of 200 at IC = 2 mA and VCE = 5 V. It is AEC-Q101 qualified for automotive applications, operates within a junction temperature range of -55°C to +150°C, and has a power dissipation rating of 300 mW.
Feature Summary
- AEC-Q101 qualified for automotive reliability standards
- Three distinct current gain groups available
- Utilizes gold bond wires for standard grades
Applications
- Signal processing circuits
- Electronic switching applications
- General purpose amplification
Procurement Notes
Verify that the specific ordering suffix matches the required qualification level. Confirm the presence of the '-AQ' designation indicates AEC-Q101 qualification rather than mere compliance. Ensure the component grade aligns with the intended application's environmental and reliability requirements before finalizing procurement.
Selection Notes
Select this component when an NPN transistor with a 30 V collector-emitter voltage rating is required. Choose the 'B' gain variant if a minimum hFE of 200 is necessary for circuit stability. Consider the AEC-Q101 qualification if the design targets automotive-grade reliability standards.
Part Context
This part belongs to the BC846 through BC850 series of SMD universal NPN transistors. The series offers various voltage ratings from 30 V to 65 V and three current gain groups (A, B, C). The BC849 variant specifically provides a 30 V rating, distinguishing it from higher-voltage counterparts like the BC846 or BC847.
Replacement Considerations
BC849B
FAQ
What is the difference between the -Q and -AQ suffixes?
The -Q suffix indicates AEC-Q101 compliant status, while the -AQ suffix denotes AEC-Q101 qualified status.
What type of bond wires are used in this component?
Standard grades utilize gold (Au) bond wires, whereas the commercial grade (-C) uses copper (Cu) bond wires.
What is the maximum power dissipation for industrial and AEC-Q101 grades?
The maximum power dissipation is 300 mW when mounted on a printed circuit board with the minimum recommended pad layout.
