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MUR140 is listed in the Single Diodes range at ChipApex. The manufacturer field lists onsemi. Its product description is DIODE STANDARD 400V 1A AXIAL. Review the specifications below when checking this part for your BOM.
Single Diodes specifications for MUR140
- Description：DIODE STANDARD 400V 1A AXIAL
- Series：SWITCHMODE™
- Mfr：onsemi
- Package：Bulk
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：400 V
- Current - Average Rectified (Io)：1A
- Voltage - Forward (Vf) (Max) @ If：1.25 V @ 1 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：75 ns
- Current - Reverse Leakage @ Vr：5 µA @ 400 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Supplier Device Package：Axial
- Operating Temperature - Junction：-65°C ~ 175°C
- Grade：-
- Qualification：-
Single Diodes datasheet and documents for MUR140
Single Diodes Overview
The onsemi MUR140 is a silicon rectifier diode designed for surface mount applications. It features an ultrafast recovery time of 65 nanoseconds, enabling high efficiency in switching circuits. The device supports a maximum average forward current of 2 amperes and withstands a peak repetitive reverse voltage of 400 volts. Packaged in the DO-214AC (SMA) form factor with two terminals, it operates reliably within a temperature range from -65°C to 175°C junction temperature.
Single Diodes Feature Summary
- Ultrafast recovery characteristics minimize switching losses and improve circuit efficiency
- Glass passivated chip junction provides robust mechanical stability and environmental resistance
- Plastic molding compound meets UL flammability classification rating 94V-0
Single Diodes Applications
- High frequency DC-to-DC converters
- Free wheeling diodes in power supplies
- Polarity protection circuits
Single Diodes Procurement Notes
Verify the specific suffix against the manufacturer datasheet to confirm exact electrical tolerances and packaging configuration. Ensure the component matches the required DO-214AC footprint and lead finish specifications for your assembly process. Cross-reference the revision level to guarantee compatibility with design requirements.
Single Diodes Selection Notes
Select this component when a compact surface mount solution is required for moderate current rectification. The 2A rating and 400V blocking capability suit general purpose power conversion. Consider the 65ns recovery speed for applications demanding reduced electromagnetic interference and faster switching transitions compared to standard recovery diodes.
Single Diodes Part Context
This part belongs to the MURA series of surface mount ultrafast power rectifiers manufactured by onsemi. The series offers various voltage ratings and current capabilities within standardized packages like SMA and SMB. These devices are engineered to replace bulkier through-hole alternatives while maintaining high reliability in industrial and consumer electronics.
Single Diodes Replacement Considerations
Compatible substitutes include the MURS140T3G and MURA140T3G from onsemi, which share similar electrical profiles and package dimensions. Verify pinout orientation and thermal characteristics before substitution.
Explore related parts through Rectifiers, Diodes, Discrete Semiconductor Products, all product categories.
