Overview
The D44H11TU is a high-performance NPN bipolar junction transistor (BJT) manufactured by Fairchild Semiconductor, now part of ON Semiconductor. This transistor is designed for general-purpose linear and switching applications. It is housed in the TO-220-3 package, which is widely used for power transistors due to its robust thermal dissipation capabilities.
The D44H11TU is part of a family of complementary power transistors that are known for their low collector-emitter saturation voltage and fast switching speeds, making them suitable for a variety of power amplifier and switching circuit applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Transistor Type | NPN | - |
| Collector-Emitter Voltage (VCEO) | 80 | V |
| Collector Current (IC) | 10 | A |
| Collector Peak Current (ICM) | 20 | A |
| Collector-Emitter Saturation Voltage (VCE(sat)) | 1 | V @ 400mA, 8A |
| DC Current Gain (hFE) | 40 @ 4A, 1V | - |
| Power Dissipation (PTOT) | 60 | W |
| Operating Junction Temperature (TJ) | 150 | °C |
| Storage Temperature (TSTG) | -55 to 150 | °C |
| Package/Case | TO-220-3 | - |
| Mounting Type | Through Hole | - |
Key Features
- Low Collector-Emitter Saturation Voltage: The D44H11TU has a low VCE(sat) of 1V at 400mA and 8A, which reduces power losses and improves efficiency in switching applications.
- Fast Switching Speed: This transistor is known for its fast switching speeds, making it suitable for high-frequency applications.
- High Current Capability: With a maximum collector current of 10A and a peak current of 20A, it is ideal for high-power applications.
- Robust Thermal Performance: The TO-220-3 package provides good thermal dissipation, allowing the transistor to operate reliably in demanding environments.
- General Purpose Use: Designed for both linear and switching applications, making it versatile for various circuit designs.
Applications
- Power Amplifiers: Suitable for use in power amplifier circuits due to its high current handling and low saturation voltage.
- Switching Circuits: Ideal for switching applications such as motor control, power supplies, and other high-frequency switching circuits.
- Automotive Systems: Can be used in automotive systems that require high reliability and robust performance.
- Industrial Control Systems: Used in industrial control systems for driving high-current loads and managing power efficiently.
Q & A
- What is the maximum collector-emitter voltage of the D44H11TU?
The maximum collector-emitter voltage (VCEO) is 80V.
- What is the maximum collector current of the D44H11TU?
The maximum collector current (IC) is 10A.
- What is the collector-emitter saturation voltage of the D44H11TU?
The collector-emitter saturation voltage (VCE(sat)) is 1V at 400mA and 8A.
- What is the DC current gain (hFE) of the D44H11TU?
The DC current gain (hFE) is 40 at 4A and 1V.
- What is the maximum power dissipation of the D44H11TU?
The maximum power dissipation (PTOT) is 60W.
- What is the operating junction temperature range of the D44H11TU?
The operating junction temperature (TJ) range is up to 150°C.
- What package type is the D44H11TU available in?
The D44H11TU is available in the TO-220-3 package.
- What are the typical applications of the D44H11TU?
Typical applications include power amplifiers, switching circuits, automotive systems, and industrial control systems.
- Is the D44H11TU RoHS compliant?
Yes, the D44H11TU is RoHS compliant.
- What is the thermal resistance junction-case (RthJC) of the D44H11TU?
The thermal resistance junction-case (RthJC) is 2.5°C/W.
