Overview
The MUR840H is an ultrafast rectifier diode produced by onsemi, designed for high-efficiency and high-surge capacity applications. This device is part of the MUR840 series, known for its fast recovery time and low forward voltage, making it suitable for various power management and rectification tasks.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Voltage - DC Reverse (Max) | Vr | 400 | V |
| Current - Average Rectified | If(AV) | 8.0 | A |
| Voltage - Forward (Max) @ If | Vf | 1.3 V @ 8 A | V |
| Peak Repetitive Forward Current per Diode Leg | Ifm | 8.0 | A |
| Non-Repetitive Peak Surge Current | Ifsm | 100 | A |
| Controlled Avalanche Energy | WAVAL | 20 | mJ |
| Operating Junction and Storage Temperature Range | TJ, Tstg | -65 to +175 | °C |
| Maximum Reverse Recovery Time | trr | 28 ns | ns |
Key Features
- Low Forward Voltage: Ensures high efficiency and low power loss.
- Low Power Loss/High Efficiency: Ideal for applications requiring minimal energy dissipation.
- High Surge Capacity: Can handle high surge currents, making it robust for various power applications.
- 175°C Operating Junction Temperature: Allows for operation in high-temperature environments.
- Fast Recovery Time: trr = 28 ns, which is crucial for high-frequency applications.
- Pb-Free Device: Compliant with environmental regulations.
- Corrosion Resistant and Solderable Leads: Enhances durability and ease of assembly.
Applications
- Power Supply - Output Rectification: Suitable for rectifying output in power supply units.
- Power Management: Used in various power management circuits to ensure efficient power handling.
- Instrumentation: Applied in instrumentation systems where high accuracy and reliability are required.
Q & A
- What is the maximum DC reverse voltage of the MUR840H?
The maximum DC reverse voltage is 400 V. - What is the average rectified forward current of the MUR840H?
The average rectified forward current is 8.0 A. - What is the maximum forward voltage at 8 A for the MUR840H?
The maximum forward voltage at 8 A is 1.3 V. - What is the peak repetitive forward current per diode leg for the MUR840H?
The peak repetitive forward current per diode leg is 8.0 A. - What is the non-repetitive peak surge current for the MUR840H?
The non-repetitive peak surge current is 100 A. - What is the controlled avalanche energy of the MUR840H?
The controlled avalanche energy is 20 mJ. - What is the operating junction and storage temperature range for the MUR840H?
The operating junction and storage temperature range is -65 to +175°C. - What is the maximum reverse recovery time of the MUR840H?
The maximum reverse recovery time is 28 ns. - Is the MUR840H Pb-free?
Yes, the MUR840H is a Pb-free device. - What are some common applications of the MUR840H?
The MUR840H is commonly used in power supply output rectification, power management, and instrumentation systems.
