MBR4035PT Equivalent & Substitute Parts

Part Overview

The MBR4035PT is a Schottky diode array manufactured by Diodes Incorporated, configured as a 1 Pair Common Cathode design rated for 35V DC reverse voltage and 40A average rectified current per diode. The device is packaged in TO-3P-3 (SC-65-3) through-hole configuration and features fast recovery characteristics suitable for high-frequency rectification applications.

The MBR4035PT is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement. Substitute parts must maintain electrical compatibility within the specified parameter ranges while accommodating available product status and packaging options.

Substiute Parts

MBR4035PT

Diodes IncorporatedIn Stock: 5454MBR4035PT Datasheet

Current PartRFQ

MBR4030PT

Diodes IncorporatedIn Stock: 2046MBR4030PT Datasheet

MFR RecommendedRFQ

MBR4035PT-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 943MBR4035PT-E3/45 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MBR4035PT are evaluated based on the following critical parameters that determine functional equivalence:

Primary Compatibility Criteria:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Mounting Type: Through Hole
• Package / Case: TO-3P-3, SC-65-3
• Current - Average Rectified (Io): 40A per diode
• Operating Temperature Range: -65°C to 150°C
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Voltage Rating Considerations:

• MBR4030PT: 30V maximum reverse voltage (lower rating, suitable for applications not exceeding 30V)
• MBR4035PT-E3/45: 35V maximum reverse voltage (equivalent rating, direct voltage compatibility)

Substitutes are classified into two categories: MFR Recommended (lower voltage rating) and Direct Manufacturer (equivalent voltage rating). Selection depends on the application's maximum reverse voltage requirement.

Parameter Comparison

Engineering Selection Recommendations

MBR4035PT-E3/45 (Direct Manufacturer Equivalent): This substitute is the primary equivalent for the obsolete MBR4035PT. Both devices share identical voltage ratings (35V maximum reverse voltage), current ratings (40A per diode), and thermal operating range (-65°C to 150°C). The MBR4035PT-E3/45 is manufactured by Vishay General Semiconductor - Diodes Division and maintains active product status. Forward voltage specification differs at higher current levels (800 mV @ 40A versus 700 mV @ 20A), reflecting measurement conditions rather than functional incompatibility. Both devices are ROHS3 compliant with MSL 1 rating. The MBR4035PT-E3/45 is supplied in tube packaging and is available in inventory (853 pcs).

MBR4030PT (MFR Recommended Substitute): This substitute is suitable for applications where the maximum reverse voltage requirement does not exceed 30V. The MBR4030PT maintains identical current rating (40A per diode), forward voltage specification (700 mV @ 20A), and thermal operating range. This device is manufactured by Diodes Incorporated with active product status and higher inventory availability (2000 pcs). The MBR4030PT carries REACH Unaffected status, whereas the original MBR4035PT is REACH Affected. Selection of this substitute requires confirmation that circuit design does not require the full 35V reverse voltage rating.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and MSL 1 rating. The MBR4035PT-E3/45 and MBR4030PT both carry REACH Unaffected status, providing regulatory advantage over the original obsolete part.

Frequently Asked Questions (FAQ)

Q: Can the MBR4030PT replace the MBR4035PT in all applications?

A: The MBR4030PT is suitable only for applications where the maximum reverse voltage does not exceed 30V. If the circuit design requires the full 35V reverse voltage rating of the original MBR4035PT, the MBR4035PT-E3/45 is the appropriate substitute. Both devices share identical 40A current rating, forward voltage characteristics at 20A, and thermal operating range.

Q: What is the difference between the MBR4035PT and MBR4035PT-E3/45?

A: Both devices share identical voltage ratings (35V), current ratings (40A per diode), and thermal operating range (-65°C to 150°C). The primary differences are manufacturer (Diodes Incorporated versus Vishay General Semiconductor - Diodes Division), product status (obsolete versus active), and forward voltage measurement conditions (700 mV @ 20A versus 800 mV @ 40A). The MBR4035PT-E3/45 is the active equivalent for direct replacement.

Q: Are the packages physically compatible?

A: All three parts use the TO-3P-3 (SC-65-3) package configuration with through-hole mounting. The MBR4035PT-E3/45 is supplied in TO-247AD (TO-3P) supplier device package, which is mechanically and electrically compatible with the original TO-3P package designation. Physical board layout and thermal management considerations remain unchanged.

Q: What are the regulatory compliance differences?

A: All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) rating. The MBR4035PT-E3/45 and MBR4030PT both carry REACH Unaffected status, whereas the original MBR4035PT is REACH Affected. This provides regulatory advantage for new designs and procurement.

Q: How do forward voltage specifications compare?

A: The MBR4035PT specifies 700 mV maximum forward voltage at 20A. The MBR4035PT-E3/45 specifies 800 mV maximum forward voltage at 40A. The MBR4030PT specifies 700 mV maximum forward voltage at 20A. These differences reflect measurement conditions and current levels rather than fundamental device characteristics. Both substitutes maintain fast recovery characteristics (≤ 500ns, > 200mA).

Q: What inventory status should influence selection?

A: The MBR4030PT has higher inventory availability (2000 pcs) compared to the MBR4035PT-E3/45 (853 pcs). However, inventory selection should be secondary to voltage rating requirements. If 35V reverse voltage is required, the MBR4035PT-E3/45 is the only suitable substitute regardless of inventory levels.