1N3650R

Single Diodes Overview

The Microchip Technology 1N3650R is a high-reliability power rectifier qualified per MIL-PRF-19500/260. It features a glass passivated die and glass-to-metal seal construction within a DO-203AA (DO-4) stud mount package. The device supports a peak repetitive reverse voltage of 1000 V and an average forward current of 3.3 A at 150°C case temperature. It withstands a 25 A peak surge forward current and operates across a case temperature range of -65°C to +150°C.

Single Diodes Feature Summary

• Qualified for high reliability applications under MIL-PRF-19500/260 standards
• Utilizes glass passivated die with glass-to-metal seal construction
• Designed for stud mounting in the DO-203AA (DO-4) package

Single Diodes Applications

• High reliability power rectification circuits
• Military and aerospace electronic systems
• Industrial equipment requiring robust thermal performance

Single Diodes Procurement Notes

Verify that the specific part number matches the required military qualification standard, as this component is designated for high-reliability environments. Confirm the presence of the 'R' suffix indicates the reversed polarity configuration where the anode is connected to the stud terminal. Ensure compatibility with the specified DO-203AA mechanical dimensions and torque requirements during installation.

Single Diodes Selection Notes

Select this component when a 1000 V reverse voltage rating and 3.3 A continuous current capacity are required in a stud-mount form factor. Consider the 2.0 °C/W junction-to-case thermal resistance for heat dissipation planning. Verify that the operating environment falls within the specified -65°C to +150°C case temperature range for reliable operation.

Single Diodes Part Context

This device belongs to the 1N3650 series of high-reliability power rectifiers manufactured by Microchip Technology. It shares the same physical package and general electrical characteristics as other variants in the family but is specifically rated for 1000 V reverse voltage. The 'R' designation distinguishes it from non-reversed versions by indicating the anode connection to the mounting stud.

Single Diodes Replacement Considerations

Compatible replacements include the 1N3650 and 1N1126A. Verify that substitute parts meet the same MIL-PRF-19500/260 qualification if military-grade reliability is required. Ensure the replacement maintains the DO-203AA package style and correct polarity orientation relative to the mounting surface.

Single Diodes FAQ

What does the 'R' suffix indicate in the 1N3650R part number?

The 'R' suffix indicates that the unit is reversed, meaning the anode is connected to the stud terminal.

What is the maximum peak surge forward current for this device?

The device can withstand a peak surge forward current of 25 A for an 8.3 ms half-sine wave pulse at a case temperature of 150°C.