Overview
The MUR820 is a high-performance ultrafast recovery rectifier diode produced by Vishay General Semiconductor - Diodes Division. Although it is currently listed as obsolete and no longer manufactured, it remains a significant component in the realm of power electronics. This diode is designed for use in various high-frequency applications, including switching power supplies, inverters, and as free-wheeling diodes. Its robust design and advanced features make it suitable for demanding environments.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Maximum Repetitive Peak Reverse Voltage | VRRM | 200 | V |
| Working Peak Reverse Voltage | VRWM | 200 | V |
| Maximum DC Blocking Voltage | VDC | 200 | V |
| Maximum Average Forward Rectified Current | IF(AV) | 8 | A |
| Peak Forward Surge Current (8.3ms single half sine-wave) | IFSM | 125 | A |
| Operating Junction Temperature Range | TJ | -55 to +150 | °C |
| Storage Temperature Range | TSTG | -55 to +150 | °C |
| Forward Drop Voltage (IF = 8A, TJ = 25°C) | VF | 0.93 - 1.00 | V |
| Reverse Recovery Time | trr | < 35 | ns |
| Thermal Resistance, Junction to Case | RθJC | 2.5 | °C/W |
| Thermal Resistance, Junction to Ambient | RθJA | 62.5 | °C/W |
Key Features
- Ultrafast recovery time of less than 25 nanoseconds, ensuring high efficiency in high-frequency applications.
- Low forward drop voltage, resulting in low power loss and improved thermal management.
- High surge current capability, making it robust against transient conditions.
- Epoxy package meets UL 94 V-0 flammability classification and is halogen-free according to IEC 61249-2-21.
- Lead-free and RoHS compliant, ensuring environmental sustainability.
- ESD ratings: Machine Model > 400 V, Human Body Model > 16,000 V.
Applications
- Switching power supplies: The MUR820 is ideal for use in SMPS due to its ultrafast recovery time and high surge current capability.
- Inverters: Its low forward drop voltage and high efficiency make it suitable for inverter applications.
- Free-wheeling diodes: The diode’s fast recovery time and low power loss make it an excellent choice for free-wheeling diode applications.
- Lighting and UPS systems: It is also used in lighting systems and uninterruptible power supplies (UPS) due to its reliability and performance.
Q & A
- What is the maximum repetitive peak reverse voltage of the MUR820? The maximum repetitive peak reverse voltage is 200 V.
- What is the maximum average forward rectified current of the MUR820? The maximum average forward rectified current is 8 A.
- What is the operating junction temperature range of the MUR820? The operating junction temperature range is -55 to +150°C.
- Is the MUR820 RoHS compliant? Yes, the MUR820 is RoHS compliant and lead-free.
- What are the typical applications of the MUR820? Typical applications include switching power supplies, inverters, free-wheeling diodes, lighting systems, and UPS systems.
- What is the forward drop voltage of the MUR820 at 8 A and 25°C? The forward drop voltage is between 0.93 V and 1.00 V.
- What is the reverse recovery time of the MUR820? The reverse recovery time is less than 35 ns.
- Is the MUR820 still in production? No, the MUR820 is currently listed as obsolete and is no longer manufactured.
- What is the thermal resistance, junction to case, of the MUR820? The thermal resistance, junction to case, is 2.5°C/W.
- What is the package type of the MUR820? The package type is TO-220AC.
