The MUR860 is a high-speed, ultrafast recovery diode rated for 600 volts and 8 amps. It’s primarily used in power switching circuits and switching power supplies where fast recovery time and high efficiency are critical. The MUR860 is part of a series that includes variants like the MUR840, RURP840, and RURP860, offering similar functionality with slight variations in voltage ratings.
MUR860 Diode Symbol
The MUR860 is a standard silicon diode with an ultrafast recovery feature. Its symbol is same as the typical diode symbol with legs of an anode and cathode,
- Anode (A): Positive terminal
- Cathode (K): Negative terminal, usually connected to the flange
In the TO-220AC package, the cathode is internally connected to the metal tab (flange), helping in efficient heat dissipation.
MUR860 Diode Pinout
The MUR860 comes in a TO-220AC-2L package, which has two leads,
- Pin 1: Cathode
- Pin 2: Anode
- Tab/Flange: Also Cathode
This straightforward pinout makes it easy to use in most PCB layouts for power applications.
MUR860 Features
- Ultrafast recovery time: 70ns at 8A
- High current rating: 8A continuous
- Reverse voltage: 600V
- Low forward voltage drop: 1.5V max
- Avalanche energy rated for robust protection
- RoHS compliant
These features make the MUR860 suitable for high speed rectification, snubber diode applications, and freewheeling diodes in motor drives and converters.
MUR860 Diode Equivalents
If MUR860 is not available, the following diodes can be considered as equivalents,
RURP860 it has an Identical electrical characteristics with the same TO-220 packaging.
HER806 has Similar rating but check for speed.
UF860 is a Ultrafast diode with compatible specs.
FFPF10S60S has 10A, 600V fast recovery diode.
Always ensure to check the specifications and pin configuration before replacement.
