Part Number: NDT3055L

Manufacturer: Onsemi

Description: MOSFET N-CH 60V 4A SOT-223-4

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of NDT3055L

Datasheet  NDT3055L datasheet
Category Discrete Semiconductor Products
Family Transistors – FETs, MOSFETs – Single
Manufacturer Fairchild Semiconductor
Packaging Tape & Reel (TR)
FET Type MOSFET N-Channel, Metal Oxide
FET Feature Logic Level Gate
Drain to Source Voltage (Vdss) 60V
Current – Continuous Drain (Id) @ 25°C 4A (Ta)
Rds On (Max) @ Id, Vgs 100 mOhm @ 4A, 10V
Vgs(th) (Max) @ Id 2V @ 250μA
Gate Charge (Qg) @ Vgs 20nC @ 10V
Input Capacitance (Ciss) @ Vds 345pF @ 25V
Power – Max 1.1W
Operating Temperature -65°C ~ 150°C (TJ)
Mounting Type Surface Mount
Package / Case TO-261-4, TO-261AA
Supplier Device Package SOT-223-4

NDT3055L Introduction

The NDT3055L is a high-performance N-channel MOSFET that can handle both high voltage and high current. This makes it a great choice for a wide variety of electronic uses. In this piece, we’ll talk about the NDT3055L MOSFET that comes in the SOT-223-4 package, including its features, specifications, and many different ways to use it. Whether you’re a fan of electronics, a hobbyist, or a skilled engineer, this guide will give you useful tips on how to use the NDT3055L MOSFET to its fullest potential in your projects.

NDT3055L Description

Onsemi’s high cell density and unique DMOS technology are used to make this logic-level NChannel enhancement mode power field effect transistor. This very high-density process is designed to minimise on-state resistance, improve switching performance, and survive high-energy pulses in the avalanche and commutation modes. This device is great for low-voltage uses that need fast switching, low in-line power loss, and resistance to transients, like controlling DC motors and converting DC to DC.

NDT3055L Features

  • Low drive requirements Logic drivers will be able to run directly. VGS(TH)  2V.
  • With a high-density cell design, the RDS (ON) is very low.
  • A widely used surface-mount package that can handle a lot of power and current.
  • This device doesn’t contain lead.

NDT3055L Benefits and Advantages

  • Low on-resistance makes power swapping work well.
  • Less power is lost, and movement happens quickly.
  • Better thermal performance with low thermal resistance from the joint to the case.
  • Strong building and a high degree of dependability.
  • Compatibility with different power circuits and microcontrollers.

Electrical Specifications

● Power Dissipation (Pd)

The most power that the MOSFET can handle before its temperature limits are reached. This standard makes sure the MOSFET works well and keeps it from getting too hot.

● On-Resistance (Rds(on))

When the MOSFET is fully turned on, the resistance between the drain and source contacts The NDT3055L has a low on-resistance, which means that it wastes less power and works better.

● Gate Threshold Voltage (Vgs(th))

The lowest voltage that must be applied to the MOSFET in order to turn it on and let a significant amount of current run from the drain to the source Most of the time, the NDT3055L’s gate cutoff voltage is between 2 and 4 volts.

● Gate Charge (QgT)

The amount of electric charge that is needed to turn the MOSFET on or off The NDT3055L lists the cumulative gate charge (Qg), which shows how much charge is needed to turn the MOSFET from off to on.

NDT3055L Applications

● Power Management

The NDT3055L can be used in power control circuits like DC-DC converters, voltage regulators, and power supplies. It can handle high voltage and current and has low on-resistance, so it can be used to distribute and control power efficiently.

● Motor Control

In motor control applications, the NDT3055L is often used because it can drive and handle motors well. It is used in robots, drones, electric cars, and industrial automation to handle motors in a way that is efficient and reliable.

● Lighting Systems

The NDT3055L can be used in lighting devices, especially those that use LED lighting. It can power high-power LEDs, so it can be used for LED drivers, lighting control systems, and dimmer switches.

● Switching Circuits

It is possible to use the NDT3055L as a dependable switch in many electronic circuits. Its quick switching speed and low on-resistance aid in switching relay drivers, load switches, and power distribution circuits.

Circuit Design Considerations

To guarantee optimum performance and dependability, various parameters should be taken into account while constructing circuits employing the NDT3055L MOSFET. Here are some important factors to remember:

● Voltage and current ratings

It is crucial to confirm that your application’s voltage and current needs are compliant with the NDT3055L MOSFET’s quoted specifications. Maintaining the MOSFET within the recommended ratings is essential for dependable operation because using it beyond its limitations might result in performance degradation or even failure.

● Gate driving techniques

For the NDT3055L MOSFET to work well and reliably, the gate must be driven in the right direction. This includes giving the MOSFET enough gate voltage (Vgs) to fully turn it on and using the gate threshold voltage (Vgs(th)) specification to make sure the switching is stable. Using a gate resistor helps stop the gate voltage from ringing and prevents too much current from flowing when switching. Using gate driver ICs or other specialised circuits makes sure that switching is accurate and quick.

● Voltage Level Requirements

Make sure the control data and voltage levels in your circuit match what the NDT3055L says it needs. To keep the MOSFET from getting damaged, pay attention to the highest gate-source voltage (Vgs) and drain-source voltage (Vds). By following these voltage level standards, operation is safe and reliable.

● Power Dissipation and Thermal Management

Calculate and control how much power the NDT3055L uses so it doesn’t burn out and stays reliable for a long time. Calculate power loss by finding the RMS or average load current (Iload) flowing through the MOSFET and recording the voltage drop across it when conducting (Vds(on)). Use the formula Pdiss = Iload2 * Rds (on) to figure out how much power is lost and make sure it stays within the MOSFET’s limits. Proper thermal management techniques, such as using heat sinks, making sure there is enough airflow, and keeping an eye on the temperature, help get rid of heat and keep working temperatures at a safe level.

● PIN Configuration

The NDT3055L MOSFET comes in a SOT-223-4 box, and its pins are set up in a certain way so that it can be easily added to electronic circuits. The device has four pins, and each one does something different. The voltage given to the first pin, called the gate (G), controls how the MOSFET conducts. The output current is taken in by the drain (D) pin, which is the second pin. The third pin, the source (S), is where the current goes back to where it came from. Last but not least, the body (B) pin connects to the MOSFET’s base. To use the NDT3055L correctly and successfully integrate it into different systems, you need to know how the pins are set up.

● Power Dissipation

The amount of heat that the NDT3055L MOSFET makes when it is working is called its power dissipation. Power dissipation is important to think about to make sure the part works within its safe working limits. How much power the MOSFET wastes depends on things like how much current flows through it and how much voltage drops across it. By choosing the right heatsink or using the right thermal management methods, excess heat can be gotten rid of quickly and effectively. This prevents thermal damage to the device and keeps it reliable and long-lasting.

● Temperature Considerations

The temperature has a big effect on how well the NDT3055L MOSFET works and how long it lasts. Its electrical properties and general reliability can be hurt by too much heat. In its manual, the MOSFET has a maximum junction temperature that, if exceeded, could affect how well it works. To make sure the MOSFET works right, it is important to keep the junction temperature within the limits stated. To run the NDT3055L within the suggested temperature range and make sure the device works well and lasts as long as possible, it is important to pay attention to the heat sinking, PCB layout, and ambient temperature.


In conclusion, the NDT3055L MOSFET in the SOT-223-4 package is a flexible and effective electronic part that can be used in many different ways. It is good for power management, motor control, lighting systems, and switching circuits because it has a low on-resistance, a fast switching speed, and is compatible with microcontrollers. It is important to think about things like voltage and current ratings, gate driving methods, power dissipation, and temperature to make sure that the device works well and is reliable. When looking for electronic parts like the NDT3055L MOSFET, it’s best to go with trusted sources. ICRFQ is a reliable source for high-quality electrical parts like the NDT3055L and a lot of others.

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