ChipApex | Global Electronic Components Supplier
75HQ045
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：DIODE SCHOTTKY 45V 75A DO203AB
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Bulk
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：45 V
- Current - Average Rectified (Io)：75A
- Voltage - Forward (Vf) (Max) @ If：710 mV @ 75 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：5 mA @ 45 V
- Capacitance @ Vr, F：-
- Mounting Type：Chassis, Stud Mount
- Package / Case：DO-203AB, DO-5, Stud
- Supplier Device Package：DO-203AB (DO-5)
- Operating Temperature - Junction：-65°C ~ 175°C
- Grade：-
- Qualification：-
Download product information
Overview
The Vishay 75HQ045 is a high-current Schottky rectifier in the 75HQ series, rated for a maximum DC reverse voltage of 45 V and an average forward current of 75 A. It features a low forward voltage drop of 0.63 V at 75 A and 125 °C junction temperature. The device supports operation up to 175 °C junction temperature with a peak surge current capability of 9000 A. Packaged in a hermetic TO-203AB (DO-5) case, it offers low reverse leakage and high-frequency performance suitable for demanding power applications.
Feature Summary
- Optimized for low reverse leakage at elevated temperatures
- Proprietary barrier technology enables reliable 175 °C junction operation
- Guard ring structure provides enhanced ruggedness and long-term reliability
- Hermetic packaging ensures environmental protection
Applications
- Switching power supplies
- DC-DC converters
- Free-wheeling diodes
- Reverse battery protection circuits
Procurement Notes
Verify the specific suffix or revision code against the manufacturer's official datasheet PD-2.246 rev. C to confirm exact electrical tolerances and package dimensions. Ensure the sourcing channel provides traceability documentation consistent with industrial-level qualification standards. Confirm that the component meets the JEDEC DO-203AB outline requirements specified in the technical bulletin before finalizing procurement orders.
Selection Notes
Select this component when high thermal stability and low forward voltage are critical for efficiency. The 45 V rating suits low-voltage output stages where minimizing conduction losses is essential. Consider the hermetic DO-5 package for environments requiring robust physical protection and high-temperature endurance beyond standard plastic encapsulated alternatives.
Part Context
The 75HQ045 belongs to the 75HQ Schottky rectifier series manufactured by Vishay General Semiconductor - Diodes Division. Originally associated with International Rectifier (IR), these devices utilize proprietary barrier technology for high-temperature performance. The series is designed for industrial applications requiring reliable rectification under harsh thermal conditions.
Replacement Considerations
Direct substitutes must match the 45 V reverse voltage, 75 A average current, and TO-203AB (DO-5) hermetic package. Verify equivalent forward voltage characteristics and thermal resistance values to ensure circuit compatibility without redesign.
