18TQ040

$1.13

Description：DIODE SCHOTTKY 40V 18A TO220AC
Series：-
Mfr：Vishay General Semiconductor - Diodes Division
Package：Tube

SKU:4985f58d9884 Category: Single Diodes Brand: Vishay General Semiconductor - Diodes Division

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Product introduction

Product Detailed Parameters

Description：DIODE SCHOTTKY 40V 18A TO220AC
Series：-
Mfr：Vishay General Semiconductor - Diodes Division
Package：Tube
Technology：Schottky
Voltage - DC Reverse (Vr) (Max)：40 V
Current - Average Rectified (Io)：18A
Voltage - Forward (Vf) (Max) @ If：600 mV @ 18 A
Speed：Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr)：-
Current - Reverse Leakage @ Vr：2.5 mA @ 40 V
Capacitance @ Vr, F：-
Mounting Type：Through Hole
Package / Case：TO-220-2
Supplier Device Package：TO-220AC
Operating Temperature - Junction：-55°C ~ 175°C
Grade：-
Qualification：-

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18TQ040

Overview

The Vishay 18TQ040 is a Schottky rectifier with an average forward current of 18 A and a maximum DC reverse voltage of 40 V. It operates within a junction temperature range of -55 °C to 175 °C. The device features a maximum forward voltage drop of 0.60 V at 25 °C and 0.53 V at 125 °C, with a peak non-repetitive surge current capability of 1800 A. Packaged in TO-220AC, it exhibits a typical junction capacitance of 1400 pF.

Feature Summary

Optimized for low reverse leakage current at elevated temperatures using proprietary barrier technology
Guard ring structure provides enhanced ruggedness and long-term reliability
Qualified for AEC-Q101 automotive standards
High purity epoxy encapsulation ensures 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 lead-free status and packaging quantity. Confirm that the component meets the required thermal management specifications for the intended application environment. Ensure compatibility with existing circuit designs regarding voltage ratings and current handling capabilities before procurement.

Selection Notes

Select this component when high-frequency operation and low forward voltage drop are critical for system efficiency. Consider the TO-220AC package dimensions and mounting torque requirements during PCB layout. Evaluate thermal resistance characteristics to ensure adequate heat dissipation under continuous load conditions.

Part Context

This part belongs to the Vishay 18TQ series of Schottky rectifiers, which includes variants rated for 35 V, 40 V, and 45 V reverse voltages. All members share identical current ratings and physical packages but differ in breakdown voltage specifications. The series is designed for general-purpose high-power applications requiring robust performance.