Specifications
| Attribute | Value |
| Package / Case | Tube |
| Series | SWITCHMODE™ |
| Part Status | Last Time Buy |
| Diode Configuration | 1 Pair Common Cathode |
| Diode Type | Standard |
| Voltage - DC Reverse (Vr) (Max) | 400 V |
| Current - Average Rectified(Io)(per Diode) | 15A |
| Voltage - Forward (Vf) (Max) @ If | 1.25 V @ 15 A |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | 60 ns |
| Current - Reverse Leakage @ Vr | 10 µA @ 400 V |
| Operating Temperature - Junction | -65°C ~ 175°C |
| Mounting Type | Through Hole |
Overview
Description
The MUR3040WTG is a high-efficiency, ultrafast rectifier diode designed for applications requiring fast switching and low forward voltage drop. It features:
- Ultrafast Recovery: Minimizes switching losses, ideal for high-frequency circuits.
- High Current Capacity: 30A average forward current.
- Low Forward Voltage (VF): Enhances efficiency in power supplies and converters.
- High Surge Current Tolerance: Suitable for demanding environments.
Common uses include switch-mode power supplies (SMPS), inverters, and freewheeling diodes in motor drives. Packaged in a TO-247 form factor, it ensures robust thermal performance.
For detailed specs, refer to the datasheet.
- Ultrafast Recovery: Minimizes switching losses, ideal for high-frequency circuits.
- High Current Capacity: 30A average forward current.
- Low Forward Voltage (VF): Enhances efficiency in power supplies and converters.
- High Surge Current Tolerance: Suitable for demanding environments.
Common uses include switch-mode power supplies (SMPS), inverters, and freewheeling diodes in motor drives. Packaged in a TO-247 form factor, it ensures robust thermal performance.
For detailed specs, refer to the datasheet.
Equivalent
Equivalent products to the MUR3040WTG (40V, 30A Schottky diode) include:
- STPS30H40CT (STMicroelectronics)
- SB3040 (Vishay)
- MBR3040PT (ON Semiconductor)
- SS30H40 (Diodes Inc.)
These are 30A, 40V Schottky diodes in similar packages (TO-220/TO-247). Verify specs for exact compatibility.
- STPS30H40CT (STMicroelectronics)
- SB3040 (Vishay)
- MBR3040PT (ON Semiconductor)
- SS30H40 (Diodes Inc.)
These are 30A, 40V Schottky diodes in similar packages (TO-220/TO-247). Verify specs for exact compatibility.
Features
The MUR3040WTG is a high-efficiency, ultrafast rectifier diode with the following key features:
- Ultrafast Recovery: Typical reverse recovery time (trr) of 35 ns, reducing switching losses.
- High Current Rating: 30A average forward current (IF(AV)).
- High Voltage Rating: 400V peak reverse voltage (VRRM).
- Low Forward Voltage Drop: ~0.95V at 15A (VF), improving efficiency.
- Surge Current Capability: 300A non-repetitive peak surge current (IFSM).
- TO-247 Package: Robust thermal performance for high-power applications.
- Avalanche Energy Rated: Enhanced reliability under transient conditions.
Ideal for switching power supplies, inverters, and freewheeling diodes in high-frequency circuits.
- Ultrafast Recovery: Typical reverse recovery time (trr) of 35 ns, reducing switching losses.
- High Current Rating: 30A average forward current (IF(AV)).
- High Voltage Rating: 400V peak reverse voltage (VRRM).
- Low Forward Voltage Drop: ~0.95V at 15A (VF), improving efficiency.
- Surge Current Capability: 300A non-repetitive peak surge current (IFSM).
- TO-247 Package: Robust thermal performance for high-power applications.
- Avalanche Energy Rated: Enhanced reliability under transient conditions.
Ideal for switching power supplies, inverters, and freewheeling diodes in high-frequency circuits.
Pinout
The MUR3040WTG is a 3 A, 400 V ultrafast rectifier diode in a TO-247AC package.
- Pin Count: 3 pins (though typically only two are used for anode and cathode; the third is often unused or connected to the tab).
- Functions:
- Anode (A) – Positive terminal.
- Cathode (K) – Negative terminal.
- Tab (if connected) – Usually tied to the cathode for heat dissipation.
Designed for high-efficiency rectification in power supplies, inverters, and switching applications due to its ultrafast recovery time (~35 ns) and low forward voltage drop (~1.05 V at 3 A).
- Pin Count: 3 pins (though typically only two are used for anode and cathode; the third is often unused or connected to the tab).
- Functions:
- Anode (A) – Positive terminal.
- Cathode (K) – Negative terminal.
- Tab (if connected) – Usually tied to the cathode for heat dissipation.
Designed for high-efficiency rectification in power supplies, inverters, and switching applications due to its ultrafast recovery time (~35 ns) and low forward voltage drop (~1.05 V at 3 A).
Manufacturer
The MUR3040WTG is a 30A, 400V ultrafast rectifier diode manufactured by ON Semiconductor, a leading global semiconductor company.
ON Semiconductor (now known as onsemi) specializes in energy-efficient power management, analog, and sensor solutions for automotive, industrial, and consumer markets. Known for high-reliability components, the company provides semiconductors for applications like power supplies, motor control, and renewable energy systems.
The MUR3040WTG is part of their Ultrafast Rectifier series, designed for high-efficiency switching applications.
ON Semiconductor (now known as onsemi) specializes in energy-efficient power management, analog, and sensor solutions for automotive, industrial, and consumer markets. Known for high-reliability components, the company provides semiconductors for applications like power supplies, motor control, and renewable energy systems.
The MUR3040WTG is part of their Ultrafast Rectifier series, designed for high-efficiency switching applications.
Application
The MUR3040WTG is a high-efficiency, ultrafast rectifier diode commonly used in:
1. Power Supplies – Switch-mode power supplies (SMPS) and AC/DC converters.
2. Freewheeling Diodes – Protects circuits from voltage spikes in inductive loads.
3. DC-DC Converters – Boost/buck converters for voltage regulation.
4. Motor Drives – Used in inverters and H-bridge circuits for motor control.
5. Automotive Electronics – Electric vehicle (EV) charging and power management systems.
6. Industrial Equipment – High-frequency rectification in welding machines and UPS systems.
Its ultrafast recovery and low forward voltage make it ideal for high-frequency, high-efficiency applications.
1. Power Supplies – Switch-mode power supplies (SMPS) and AC/DC converters.
2. Freewheeling Diodes – Protects circuits from voltage spikes in inductive loads.
3. DC-DC Converters – Boost/buck converters for voltage regulation.
4. Motor Drives – Used in inverters and H-bridge circuits for motor control.
5. Automotive Electronics – Electric vehicle (EV) charging and power management systems.
6. Industrial Equipment – High-frequency rectification in welding machines and UPS systems.
Its ultrafast recovery and low forward voltage make it ideal for high-frequency, high-efficiency applications.
Package
The MUR3040WTG is a TO-247AC package type. This package is a through-hole, three-lead design commonly used for high-power diodes and transistors. It offers excellent thermal performance and mechanical strength, suitable for applications requiring high current and voltage handling. The TO-247AC variant typically has an isolated tab for easier mounting on heat sinks.
