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Product Detailed Parameters
- Description：DIODE STANDARD 100V 3A B SQMELF
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：100 V
- Current - Average Rectified (Io)：3A
- Voltage - Forward (Vf) (Max) @ If：875 mV @ 4 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：30 ns
- Current - Reverse Leakage @ Vr：5 µA @ 100 V
- Capacitance @ Vr, F：60pF @ 10V, 1MHz
- Mounting Type：Surface Mount
- Package / Case：SQ-MELF, B
- Supplier Device Package：B, SQ-MELF
- Operating Temperature - Junction：-65°C ~ 175°C
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Overview
The 1N5809URS is a military-qualified ultrafast recovery rectifier diode manufactured by Microchip Technology. It features a single configuration with a maximum repetitive peak reverse voltage of 100 V and an average forward rectified current rating of 3 A. The device exhibits a fast recovery time of 30 ns and a low forward voltage drop of 875 mV at 4 A. It operates within a junction temperature range of -65°C to +175°C and utilizes the SQ-MELF (B) surface-mount package.
Feature Summary
- Military qualified per MIL-PRF-19500/477 for high-reliability applications
- Hermetically sealed with void-less glass construction
- Ultrafast recovery characteristics suitable for high-speed switching
Applications
- High-reliability aerospace systems
- Military-grade power conversion circuits
- Critical infrastructure rectification
Procurement Notes
Verify that the specific part number includes the URS suffix, which denotes the hermetically sealed SQ-MELF package and military qualification status. Confirm compliance with MIL-PRF-19500/477 requirements during procurement. Ensure storage and handling procedures align with the specifications for hermetically sealed semiconductor devices to maintain integrity.
Selection Notes
Select this component when military qualification and hermetic sealing are mandatory for the application. The 100 V reverse voltage and 3 A current ratings define its electrical limits. The SQ-MELF package requires appropriate surface-mount assembly techniques. Verify that the 30 ns recovery time meets the switching speed requirements of the target circuit design.
Part Context
This component belongs to the 1N58xx series of ultrafast recovery rectifiers produced by Microchip Technology. The series offers various voltage ratings from 50 V to 150 V. The URS variant specifically provides the hermetically sealed SQ-MELF form factor, distinguishing it from standard plastic-packaged equivalents in the same family.
Replacement Considerations
Direct substitutes include other military-qualified ultrafast rectifiers in the SQ-MELF package with matching 100 V and 3 A ratings. Verify pinout compatibility and thermal performance before substitution.
