MBR4060WT Equivalent & Substitute Parts

Part Overview

The MBR4060WT is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 60 V DC reverse voltage and 20 A average rectified current per diode. The device is packaged in a TO-247-3 through-hole format and operates across a junction temperature range of -55°C to 150°C.

The MBR4060WT is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

MBR4060WT

Vishay General Semiconductor - Diodes DivisionIn Stock: 22319MBR4060WT Datasheet

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MBR4060PT

Fairchild SemiconductorIn Stock: 1341MBR4060PT Datasheet

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DSSK80-006B

IXYSIn Stock: 5480DSSK80-006B Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBR4060WT is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Diode Configuration: 1 Pair Common Cathode (pinout compatibility)
• Technology: Schottky (switching characteristics and forward voltage behavior)
• Voltage - DC Reverse (Vr) (Max): 60 V (minimum voltage rating requirement)
• Current - Average Rectified (Io) (per Diode): Equal to or greater than 20 A
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (switching performance)

Mechanical Compatibility Requirements:

• Mounting Type: Through Hole
• Package / Case: TO-247-3 or equivalent footprint

Substitute parts MBR4060PT and DSSK80-006B meet or exceed these parameters while maintaining electrical and mechanical compatibility. Both substitutes provide equal or superior current ratings (40 A), identical reverse voltage ratings (60 V), and compatible through-hole mounting configurations.

Parameter Comparison

Engineering Selection Recommendations

MBR4060PT (Fairchild Semiconductor): This substitute provides a 2x current rating increase (40 A versus 20 A) while maintaining the 60 V reverse voltage specification. The part is in active production status. The TO-3P-3 package requires PCB footprint verification prior to implementation. Operating temperature range extends to -65°C, providing enhanced low-temperature performance compared to the original MBR4060WT.

DSSK80-006B (IXYS): This substitute maintains the TO-247-3 package footprint of the original MBR4060WT, eliminating PCB redesign requirements. The part is in active production status and carries ROHS3 compliance certification. Current rating is doubled to 40 A. Forward voltage is reduced to 550 mV @ 40 A, indicating improved efficiency characteristics. Reverse leakage current is specified at 20 mA @ 60 V, which is elevated compared to the original specification of 1 mA @ 60 V.

For applications requiring direct footprint compatibility without PCB modification, DSSK80-006B is the preferred selection. For applications where package transition is acceptable, MBR4060PT offers extended low-temperature operation.

Frequently Asked Questions (FAQ)

Q: Can MBR4060PT be used as a direct replacement for MBR4060WT?

A: MBR4060PT is electrically compatible as a substitute. Both devices feature 1 Pair Common Cathode Schottky diode configuration with 60 V reverse voltage rating. However, the package differs: MBR4060WT uses TO-247-3 while MBR4060PT uses TO-3P-3. PCB footprint verification is required before implementation.

Q: Can DSSK80-006B be used as a direct replacement for MBR4060WT?

A: DSSK80-006B is a direct substitute for MBR4060WT. Both devices use the TO-247-3 package, enabling pin-for-pin and footprint-compatible replacement. Electrical specifications are compatible: 1 Pair Common Cathode Schottky configuration, 60 V reverse voltage, and fast recovery switching characteristics.

Q: What is the significance of the current rating increase in substitute parts?

A: Both substitute parts (MBR4060PT and DSSK80-006B) are rated for 40 A average rectified current per diode, compared to 20 A for the MBR4060WT. This increased rating provides design margin and allows the substitute parts to operate at lower junction temperatures under the same load conditions. The original 20 A design requirement is satisfied by both substitutes.

Q: How does reverse leakage current affect part selection?

A: The MBR4060WT specifies 1 mA reverse leakage at 60 V. DSSK80-006B specifies 20 mA at the same voltage. MBR4060PT specifies 1 mA, matching the original. For applications sensitive to leakage current, MBR4060PT maintains the original specification. For general rectification applications, the elevated leakage of DSSK80-006B is typically acceptable.

Q: What is the impact of forward voltage differences between substitutes?

A: MBR4060WT specifies 730 mV @ 20 A. MBR4060PT specifies 800 mV @ 20 A. DSSK80-006B specifies 550 mV @ 40 A. Forward voltage affects power dissipation and efficiency. DSSK80-006B exhibits lower forward voltage, resulting in reduced power loss. MBR4060PT exhibits slightly elevated forward voltage. Both remain within acceptable ranges for Schottky diode technology.

Q: Are there compliance differences between the original and substitute parts?

A: MBR4060WT is RoHS non-compliant. DSSK80-006B carries ROHS3 compliance certification. MBR4060PT compliance status is not specified in available data. For applications requiring RoHS compliance, DSSK80-006B is the appropriate selection.

Q: What is the operating temperature range consideration?

A: MBR4060WT and DSSK80-006B both specify -55°C to 150°C junction temperature range. MBR4060PT extends the low-temperature limit to -65°C. For applications operating below -55°C, MBR4060PT provides enhanced performance margin.