SB4020PT_T0_00001

Overview

The SB4020PT_T0_00001 is a Schottky barrier rectifier from the SB4020PT series manufactured by Panjit International Inc. It features a maximum average forward current of 40 amperes at a case temperature of 90°C and a maximum repetitive peak reverse voltage of 20 volts. The device utilizes a TO-247AD/TO-3P molded plastic package with solder-plated terminals. Electrical characteristics include a maximum forward voltage of 0.55 volts at 20 amperes per leg, a typical thermal resistance of 1.5°C/W, and a peak forward surge current capability of 350 amperes for an 8.3-millisecond single half sine-wave.

Feature Summary

• Plastic package classified as Underwriters Laboratory Flammability 94V-O utilizing flame retardant epoxy molding compound.
• Designed for low power loss and high efficiency applications with high current capability.
• Capable of handling high surge currents suitable for demanding circuit conditions.
• Lead-free construction compliant with EU RoHS 2011/65/EU directives.

Applications

• Low voltage high frequency inverters
• Free wheeling circuits
• Polarity protection

Procurement Notes

Verify the specific packing code suffix to confirm the physical packaging format. The T0 designation indicates Tape and Ammo Box configuration. Confirm compliance requirements against the latest manufacturer documentation before finalizing procurement specifications.

Selection Notes

Select this component when a 40-ampere continuous current rating and 20-volt blocking voltage are required in a through-hole package. Ensure the application operates within the specified junction temperature range of -55°C to +125°C. Derate the forward current by 20% if the load is capacitive.

Part Context

This part belongs to the SB4020PT series which covers voltage ratings from 20 to 60 volts while maintaining a constant 40-ampere current capacity. The series includes variants such as SB4030PT and SB4060PT for different voltage requirements within the same thermal and mechanical envelope.

Replacement Considerations

Direct substitutes within the same series include SB4020PT_T0_10001 which differs only in version code. Other series members like SB4030PT share identical current and thermal ratings but offer higher voltage blocking capabilities.

FAQ

What is the maximum non-repetitive surge current rating?

The SB4020PT can withstand a peak forward surge current of 350 amperes for an 8.3-millisecond single half sine-wave superimposed on rated load.

How does the package affect thermal performance?

The TO-247AD/TO-3P package provides a typical thermal resistance (RθJC) of 1.5°C/W, facilitating efficient heat dissipation from the junction to the case.

Is the device suitable for capacitive loads?

Yes, but the maximum average forward current must be derated by 20 percent when used with capacitive loads to ensure reliable operation.