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81CNQ045ASL
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Product Detailed Parameters
- Description：DIODE ARRAY SCHOT 45V 40A D618SL
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Bulk
- Diode Configuration：1 Pair Common Cathode
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：45 V
- Current - Average Rectified (Io) (per Diode)：40A
- Voltage - Forward (Vf) (Max) @ If：740 mV @ 80 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：5 mA @ 45 V
- Operating Temperature - Junction：-55°C ~ 175°C
- Mounting Type：Surface Mount
- Package / Case：D-61-8-SL
- Supplier Device Package：D-61-8-SL
- Grade：-
- Qualification：-
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Overview
The Vishay VS-81CNQ045ASL is a center tap Schottky rectifier module featuring two 40 A legs for a total average forward current of 80 A. It operates with a maximum repetitive peak reverse voltage of 45 V and supports junction temperatures up to 175 °C. The device utilizes the D-61-8-SL through-hole package, providing a low profile and small footprint. Key electrical characteristics include a maximum forward voltage drop of 0.74 V at 80 A and 25 °C, and a non-repetitive surge current capability of 4600 A.
Feature Summary
- Center tap configuration optimized for low reverse leakage at high temperatures
- Proprietary barrier technology enabling reliable operation up to 175 °C junction temperature
- Guard ring design enhances ruggedness and long-term reliability
- High purity epoxy encapsulation provides enhanced mechanical strength and moisture resistance
Applications
- Switching power supplies
- Converters
- Freewheeling diodes
- Reverse battery protection
Procurement Notes
Verify the specific ordering suffix against the manufacturer's documentation to confirm the package style and termination type. The ASL suffix indicates the D-61-8-SL through-hole package. Confirm RoHS compliance status as PbF terminations are required for directive compliance. Ensure thermal management requirements align with the specified thermal resistance values before procurement.
Selection Notes
Select this component when a dual anode common cathode configuration is required for high-frequency applications. The 45 V rating suits low-voltage DC systems. Verify that the mounting surface allows for the specified torque range. Consider the 175 °C operating limit for high-temperature environments. Ensure the PCB layout accommodates the D-61-8-SL package dimensions and lead spacing.
Part Context
This part belongs to the VS-81CNQ...A PbF Series, representing the New Generation 3 D-61 Package line from Vishay High Power Products. The series includes variants with different voltage ratings (35 V, 40 V, 45 V) and package styles. The 81CNQ045ASL specifically denotes the 45 V version in the SL through-hole variant.
Replacement Considerations
Direct substitutes within the same series include VS-81CNQ035ASL and VS-81CNQ040ASL, which share identical packaging and current ratings but differ in reverse voltage. Other packages in the series, such as ASM or standard A, offer alternative mounting configurations.
