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Product Detailed Parameters
- Description：DIODE SCHOTTKY 40V 180A D-67
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Bulk
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：40 V
- Current - Average Rectified (Io)：180A
- Voltage - Forward (Vf) (Max) @ If：660 mV @ 180 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：15 mA @ 40 V
- Capacitance @ Vr, F：7800pF @ 5V, 1MHz
- Mounting Type：Chassis Mount
- Package / Case：D-67 HALF-PAK
- Supplier Device Package：D-67 HALF-PAK
- Operating Temperature - Junction：-
- Grade：-
- Qualification：-
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Overview
The Vishay 181NQ040 is a high-current Schottky rectifier module featuring a Half-Pak case style. It provides an average forward current of 180 A and supports a maximum DC reverse voltage of 40 V. The device exhibits a low forward voltage drop of 0.56 V at 180 A peak with a junction temperature of 125°C, alongside a peak non-repetitive surge current capability of 22,000 A. Designed for robust industrial applications, it operates reliably within a junction temperature range of -55°C to 175°C.
Feature Summary
- Optimized proprietary barrier technology ensures very low forward voltage drop while maintaining moderate leakage currents.
- High purity, high-temperature epoxy encapsulation enhances mechanical strength and moisture resistance.
- Guard ring design improves ruggedness and long-term reliability under demanding electrical conditions.
Applications
- Switching power supplies
- DC-DC converters
- Free-wheeling diodes
- Reverse battery protection circuits
Procurement Notes
Verify the specific suffix designation when ordering, as variations exist between standard and reversed terminal configurations. Confirm that the procurement channel sources from authorized distributors to ensure component authenticity. Review the latest datasheet revision for any updates to thermal or electrical specifications prior to finalizing integration into the design.
Selection Notes
Select this component for designs requiring high current handling in a compact form factor compared to parallel discrete DO-5 packages. Ensure the mounting surface is smooth and greased to achieve the typical thermal resistance of 0.10 °C/W from case to heatsink. Verify that the application does not exceed the maximum rated junction temperature of 175°C during continuous operation.
Part Context
This component belongs to the 181NQ series of high-performance Schottky rectifiers manufactured by Vishay General Semiconductor - Diodes Division. The series utilizes unique half-pak modules designed to replace three parallel DO-5 diodes, offering easier mounting and a lower profile. These modules are engineered for high-frequency operation and superior thermal management.
Replacement Considerations
The datasheet indicates this module replaces three parallel DO-5 diodes. No specific alternative part numbers are documented in the provided source material.
