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Product Detailed Parameters
- Description：TRANS NPN 40V 0.2A SOT-23
- Series：-
- Mfr：ANBON SEMICONDUCTOR (INT'L) LIMITED
- Package：Tape & Reel (TR),Cut Tape (CT)
- Transistor Type：NPN
- Current - Collector (Ic) (Max)：200 mA
- Voltage - Collector Emitter Breakdown (Max)：40 V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 5mA, 50mA
- Current - Collector Cutoff (Max)：50nA
- DC Current Gain (hFE) (Min) @ Ic, Vce：100 @ 10mA, 1V
- Power - Max：300 mW
- Frequency - Transition：250MHz
- 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
- Grade：-
- Qualification：-
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Overview
The MMBT3904 is a single NPN bipolar junction transistor manufactured by ANBON SEMICONDUCTOR (INT'L) LIMITED. It features a maximum collector-emitter voltage of 40 V and a continuous collector current of 200 mA. The device operates in a surface-mount SOT-23 package with a maximum power dissipation of 300 mW. Key electrical characteristics include a transition frequency of 250 MHz, a minimum DC current gain of 100 at 10 mA, and a collector cutoff current of 50 nA. The saturation voltage is specified as 300 mV under defined drive conditions.
Feature Summary
- Designed for general-purpose switching and amplification applications
- Optimized for low collector-emitter saturation voltage to improve efficiency
- Constructed for reliable operation across extended temperature ranges
Applications
- General-purpose signal amplification circuits
- Low-side switching configurations
- Driver stages for logic interfaces
Procurement Notes
Verify the manufacturer designation on the component marking against ANBON SEMICONDUCTOR (INT'L) LIMITED specifications. Confirm the package type matches the required SOT-23 footprint. Ensure the datasheet parameters align with the specific design requirements for voltage and current ratings before integration into the final assembly.
Selection Notes
Select this component when a standard NPN transistor with moderate current handling and low saturation voltage is required. The SOT-23 package facilitates compact surface-mount designs. Verify that the 40 V breakdown voltage and 200 mA current limits satisfy the circuit's operational demands without exceeding the thermal dissipation capabilities of the chosen PCB layout.
Part Context
This component belongs to the family of small-signal NPN transistors commonly used in consumer electronics and industrial control systems. The MMBT3904 variant specifically targets applications requiring efficient switching with minimal voltage drop. Its surface-mount construction supports automated assembly processes typical in modern printed circuit board manufacturing.
Replacement Considerations
Cross-reference with other manufacturers' MMBT3904 equivalents to ensure pinout compatibility and parameter matching. Verify that substitute parts meet the same SOT-23 mechanical dimensions and electrical thresholds for saturation voltage and current gain.
