• MMBT4401-7-F SOT23-3
MMBT4401-7-F SOT23-3


Trans GP BJT NPN 40V 0.6A 350mW 3-Pin SOT-23 T/R

Quantity Unit Price(USD) Ext. Price
20 $0.024 $0.48
200 $0.019 $3.80
600 $0.017 $10.20
3000 $0.014 $42.00
9000 $0.013 $117.00
21000 $0.012 $252.00


*The price is for reference only.
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Overview of MMBT4401-7-F

The MMBT4401-7-F is a general-purpose NPN transistor in a SOT-23 package.This transistor is designed for use in a wide range of electronic applications, including amplification, switching, and signal processing.


(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • E: Emitter
  • B: Base
  • C: Collector

Circuit Diagram

Include a circuit diagram illustrating the connections and potential applications of the MMBT4401-7-F transistor for a better understanding of its usage.

Key Features

  • NPN Transistor: The MMBT4401-7-F is an NPN transistor commonly used for amplification and switching purposes.
  • High Voltage Rating: With a maximum voltage rating suitable for various applications.
  • Low Noise: This transistor offers low noise performance, making it ideal for signal processing applications.
  • Small Package: The SOT-23 package offers a compact size, suitable for space-constrained designs.
  • Continuous Collector Current: Provides a current rating for continuous operation in electronic circuits.

Note: For detailed specifications, refer to the MMBT4401-7-F datasheet.


  • Signal Amplification: Suitable for amplifying weak signals in electronic circuits.
  • Switching Circuits: Can be used in switching applications to control the flow of current.
  • Signal Processing: Ideal for various signal processing tasks in electronic devices.


The MMBT4401-7-F NPN transistor is a versatile component that can be utilized for signal amplification, switching, and other electronic applications. It offers reliability and performance in a compact package.

Usage Guide

  • Pinout: Connect the Emitter, Base, and Collector pins according to the circuit requirements.
  • Biasing: Provide appropriate biasing to the Base terminal for desired operation.
  • Load Connection: Connect the load to the Collector terminal for the desired functionality.

Frequently Asked Questions

Q: Is the MMBT4401-7-F suitable for audio amplifier circuits?
A: Yes, the MMBT4401-7-F can be used in audio amplifier circuits and other signal processing applications.


Consider these alternatives with similar functionalities to the MMBT4401-7-F:

  • 2N4401: A commonly used NPN transistor with similar characteristics to the MMBT4401-7-F.
  • BC337: Another NPN transistor option suitable for general-purpose electronics applications.



The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category Bipolar Transistors - BJT RoHS Details
Mounting Style SMD/SMT Package / Case SOT-23-3
Transistor Polarity NPN Configuration Single
Collector- Emitter Voltage VCEO Max 40 V Collector- Base Voltage VCBO 60 V
Emitter- Base Voltage VEBO 6 V Collector-Emitter Saturation Voltage 750 mV
Maximum DC Collector Current 600 mA Pd - Power Dissipation 310 mW
Gain Bandwidth Product fT 250 MHz Minimum Operating Temperature - 55 C
Maximum Operating Temperature + 150 C Series MMBT4401
Brand Diodes Incorporated Continuous Collector Current 600 mA
DC Current Gain hFE Max 300 Height 1 mm
Length 3.05 mm Product Type BJTs - Bipolar Transistors
Factory Pack Quantity 3000 Subcategory Transistors
Technology Si Width 1.4 mm
Unit Weight 0.000282 oz

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