Overview
The MUR420SG, produced by onsemi, is a high-performance ultrafast rectifier designed for use in switching power supplies, inverters, and as free-wheeling diodes. This component is part of the MUR series, known for its advanced characteristics and reliability. The MUR420SG offers ultrafast recovery times, low forward voltage, and high current capability, making it suitable for demanding applications in power electronics.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Peak Repetitive Reverse Voltage | VRRM | 200 | V |
| Maximum DC Blocking Voltage | VR | 200 | V |
| Average Rectified Forward Current (TA = 55°C) | IF(AV) | 4.0 | A |
| Nonrepetitive Peak Surge Current (8.3 ms single half sine-wave) | IFSM | 125 | A |
| Operating Junction Temperature & Storage Temperature | TJ, TSTG | -65 to +175 | °C |
| Maximum Instantaneous Forward Voltage (IF = 3.0 A, TJ = 150°C) | VF | 0.71 | V |
| Maximum Instantaneous Reverse Current (Rated DC Voltage, TJ = 150°C) | iR | 150 | μA |
| Maximum Reverse Recovery Time (IF = 1.0 A, di/dt = 50 A/μs) | trr | 35 | ns |
| Maximum Forward Recovery Time (IF = 1.0 A, di/dt = 100 A/μs) | tfr | 25 | ns |
Key Features
- Ultrafast recovery times of 25 ns, 50 ns, and 75 ns
- High operating junction temperature of up to 175°C
- Low forward voltage and low leakage current
- High current capability with an average rectified forward current of 4.0 A
- High surge capability with a nonrepetitive peak surge current of 125 A
- High reliability and good for switching mode circuits
- Pb-free packages and RoHS compliant
- Molded plastic case with UL flammability classification 94V-O
Applications
The MUR420SG is designed for use in various power electronics applications, including:
- Switching power supplies
- Inverters
- Free-wheeling diodes
- High-frequency switching circuits
- Power conversion systems
Q & A
- What is the peak repetitive reverse voltage of the MUR420SG?
The peak repetitive reverse voltage (VRRM) is 200 V.
- What is the maximum average rectified forward current of the MUR420SG?
The maximum average rectified forward current (IF(AV)) is 4.0 A at TA = 55°C.
- What are the operating junction and storage temperature ranges for the MUR420SG?
The operating junction and storage temperature ranges are -65°C to +175°C.
- What is the maximum instantaneous forward voltage of the MUR420SG?
The maximum instantaneous forward voltage (VF) is 0.71 V at IF = 3.0 A and TJ = 150°C.
- What is the maximum reverse recovery time of the MUR420SG?
The maximum reverse recovery time (trr) is 35 ns at IF = 1.0 A and di/dt = 50 A/μs.
- Is the MUR420SG Pb-free and RoHS compliant?
- What is the typical weight of the MUR420SG?
The typical weight of the MUR420SG is approximately 1.18 grams.
- What are the packaging options for the MUR420SG?
The MUR420SG is available in plastic bags, tape and reel, and ammo pack packaging.
- What is the maximum thermal resistance, junction-to-ambient, for the MUR420SG?
The maximum thermal resistance, junction-to-ambient (RθJA), varies based on mounting method but is typically around 55-63 °C/W.
- What are the mechanical characteristics of the MUR420SG?
The MUR420SG has a molded plastic case with UL flammability classification 94V-O, and the leads are readily solderable.
