1N4056R

Single Diodes Overview

The Powerex Inc. 1N4056R is a standard rectifier diode housed in a DO-205AB (DO-9) package. It features a glass-to-metal seal construction and a glass passivated die. The device supports a maximum repetitive reverse voltage of 1000 V and an average forward current of 275 A. Key electrical parameters include a maximum forward voltage of 1.3 V, a reverse current of 75 uA, and a non-repetitive peak surge current capability of 5 kA. Operating temperatures range from -65 °C to 190 °C.

Single Diodes Feature Summary

• Glass-to-metal seal construction for robust environmental sealing
• High surge current capability with soft recovery characteristics
• Glass passivated die design ensuring stable performance

Single Diodes Applications

• AC power conversion systems
• Motor speed regulation circuits
• Lighting control applications

Single Diodes Procurement Notes

Verify the manufacturer origin carefully, as the 1N4056R part number is produced by multiple vendors including Microchip Technology and Powerex Inc. Confirm that the specific unit received matches the required package style and mounting configuration. Ensure the component status is active and check for any specific ordering suffixes that may indicate variations in testing or packaging standards.

Single Diodes Selection Notes

Select this component when high current handling and ruggedness are required in a stud-mountable form factor. The 275 A rating suits heavy-duty industrial rectification tasks. Consider the 1000 V reverse voltage limit for medium-voltage AC applications. The wide operating temperature range makes it suitable for harsh environments where thermal stability is critical for long-term reliability.

Single Diodes Part Context

This diode belongs to the family of high-power single-element rectifiers designed for industrial use. Similar devices often share the DO-9 package but vary significantly in current ratings and voltage limits. The 1N4056R represents a specific point in this spectrum, balancing high amperage with moderate voltage blocking capabilities for general-purpose heavy-current rectification.

Single Diodes Replacement Considerations

Cross-reference with other manufacturers' equivalents such as those from Microchip Technology. Verify that substitute parts maintain identical pinout configurations and mechanical dimensions for chassis or stud mounting. Ensure replacement components meet or exceed the original 275 A and 1000 V specifications.