UMW AO3400A N-MOSFET, 30V 5.8A, SOT23

Product detailed description

The UMW AO3400A N-channel MOSFET in a SOT-23 package is a versatile switching transistor for voltages up to 30 V and currents up to 5.8 A. Thanks to the low threshold voltage (typ. 1.1 V) and low on-resistance (typ. 20 mΩ at VGS = 4.5 V), you can drive it directly from the 3.3V and 5V outputs of microcontrollers such as Arduino, ESP32, or Raspberry Pi Pico, without an additional driver. It is suitable as a low-side load switch for LED strips, motors, relays, fans, or for PWM control. The AO3400A is one of the most common small MOSFETs in an SOT-23 SMD package and is interchangeable with AO3400/AO3400A types from other manufacturers.

Specifications:

• Type: N-channel MOSFET (enhancement mode, trench technology)
• Package: SOT-23 (SMD)
• Pinout: 1 – G (gate), 2 – S (source), 3 – D (drain)
• Drain–source voltage VDS: max. 30 V
• Gate–source voltage VGS: max. ±12 V
• Drain current ID:
  • Continuous: 5.8 A (TA = 25 °C), 4.9 A (TA = 70 °C)
  • Pulsed IDM: 30 A
• Gate threshold voltage VGS(th): 0.7–1.4 V (typ. 1.1 V)
• On-state resistance RDS(on):
  • VGS = 10 V: typ. 17 mΩ (max. 27 mΩ)
  • VGS = 4.5 V: typ. 20 mΩ (max. 31 mΩ)
  • VGS = 2.5 V: typ. 24 mΩ (max. 48 mΩ)
• Gate capacitance and charge:
  • Input capacitance Ciss: typ. 823 pF
  • Total gate charge Qg: typ. 9.7 nC (VGS = 4.5 V)
• Power dissipation PD: max. 1.4 W (TA = 25 °C), 1 W (TA = 70 °C)
• Thermal resistance junction-to-ambient RθJA: 125 °C/W
• Operating junction temperature: −55 °C to +150 °C
• Manufacturer: UMW (Youtai Semiconductor)
• Complementary P-channel type:
  • UMW AO3401A P-MOSFET, 30V 4.2A, SOT23

Package contents:

• 1× N-MOSFET UMW AO3400A, SOT-23

Note:

• When switching inductive loads (motors, relays, solenoids), connect a protective (flyback) diode in parallel with the load.
• This product is not a standalone functional unit and may require professional installation.
• Product images are for illustrative purposes only and may sometimes differ from the actual appearance of the item. However, this does not change their basic properties.