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Product Detailed Parameters
- Description：DIODE STD 300V 400MA DO213AA
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：300 V
- Current - Average Rectified (Io)：400mA
- Voltage - Forward (Vf) (Max) @ If：1 V @ 400 mA
- Speed：Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：200 nA @ 300 V
- Capacitance @ Vr, F：-
- Mounting Type：Surface Mount
- Package / Case：DO-213AA
- Supplier Device Package：DO-213AA
- Operating Temperature - Junction：-65°C ~ 175°C
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Overview
The 1N646UR-1/TR is a signal or computer diode manufactured by Microchip Technology. It features a surface-mount DO-213AA (SQ-MELF) package and operates with a maximum DC reverse voltage of 300 V. The device supports an average rectified current of 400 mA and exhibits a forward voltage of 1 V at the rated current. Reverse leakage current is specified at 200 nA under maximum reverse voltage conditions. The component utilizes standard recovery characteristics exceeding 500 ns and functions within a junction temperature range of -65°C to 175°C.
Feature Summary
- Surface-mount construction in a compact SQ-MELF package for automated assembly
- High reverse voltage blocking capability suitable for signal isolation
- Wide operating temperature range for harsh environment reliability
Applications
- Signal processing circuits
- Computer logic interfaces
- General purpose switching applications
Procurement Notes
Verify the specific datasheet revision and electrical test limits directly from Microchip Technology documentation before integration. Confirm that the DO-213AA footprint matches the design requirements. Ensure compliance with RoHS directives if required by the final product specifications. Cross-reference part numbers carefully as variations may exist between legacy and current production runs.
Selection Notes
Select this component when a high-voltage, low-current signal diode is required in a small surface-mount form factor. The 300 V rating provides significant margin for transient protection in low-power digital lines. Consider the standard recovery speed for non-high-frequency applications where minimal capacitance is critical.
Part Context
This part belongs to the Microchip single diode family, specifically designed for general-purpose signal and computer applications. It serves as a surface-mount alternative to through-hole axial packages like the DO-35, offering similar electrical performance in a reduced profile suitable for modern PCB layouts.
Replacement Considerations
Direct substitutes include other 300V 400mA signal diodes in the DO-213AA package. Verify pinout compatibility and thermal characteristics when replacing with components from different manufacturers.
