MBR1035G Equivalent & Substitute Parts

Part Overview

The MBR1035G is a Schottky rectifier diode manufactured by onsemi, rated for 35 V DC reverse voltage and 10 A average rectified current in a through-hole TO-220-2 package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. Substitute parts must maintain electrical compatibility within the specified voltage, current, and thermal operating parameters while accommodating available packaging options.

Substiute Parts

MBR1035G

onsemiIn Stock: 25262MBR1035G Datasheet

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STPS1045D

STMicroelectronicsIn Stock: 55269STPS1045D Datasheet

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VS-MBR1035-M3

Vishay General Semiconductor - Diodes DivisionIn Stock: 995VS-MBR1035-M3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MBR1035G are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

• Technology: Schottky diode
• Current - Average Rectified (Io): 10 A minimum
• Voltage - DC Reverse (Vr): Equal to or greater than 35 V
• Mounting Type: Through Hole
• Package / Case: TO-220-2 or compatible TO-220AC variant
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• RoHS Compliance: ROHS3 Compliant

Acceptable Variation:

• Voltage - DC Reverse (Vr) may exceed 35 V without functional degradation in applications designed for 35 V operation
• Forward voltage (Vf) variations within the Schottky diode technology class are acceptable provided the part operates within specified current and temperature ranges
• Operating temperature range may differ provided the junction temperature rating supports the application's thermal environment

Two substitute parts meet these criteria: STPS1045D (STMicroelectronics) and VS-MBR1035-M3 (Vishay General Semiconductor - Diodes Division).

Parameter Comparison

Engineering Selection Recommendations

STPS1045D (STMicroelectronics) is suitable for applications where the 35 V reverse voltage specification can accommodate a higher-rated component. This part offers a 45 V reverse voltage rating, providing additional design margin. The forward voltage is lower at 600 mV @ 10 A compared to the MBR1035G specification of 840 mV @ 20 A, resulting in reduced power dissipation. The part is in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). The maximum junction temperature rating is 175°C, matching the MBR1035G upper limit.

VS-MBR1035-M3 (Vishay General Semiconductor - Diodes Division) provides the closest electrical match to the MBR1035G, with identical 35 V reverse voltage and 840 mV forward voltage specifications. This part is in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). The maximum junction temperature rating is 150°C, which is 25°C lower than the MBR1035G specification. This part is suitable for applications operating within the -65°C to 150°C junction temperature range.

Both substitute parts are through-hole mounted in TO-220-2 compatible packages and maintain the 10 A current rating and fast recovery speed characteristics of the original component. Selection between these substitutes depends on application-specific requirements for reverse voltage margin and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can STPS1045D replace MBR1035G in all applications?

A: STPS1045D is electrically compatible with MBR1035G for applications designed for 35 V operation. The higher 45 V reverse voltage rating provides additional design margin without functional degradation. The lower forward voltage (600 mV @ 10 A versus 840 mV @ 20 A) reduces power dissipation. Both parts operate at the same maximum junction temperature of 175°C and share identical current ratings and recovery speed specifications.

Q: What is the difference between VS-MBR1035-M3 and MBR1035G?

A: VS-MBR1035-M3 matches MBR1035G in reverse voltage (35 V), forward voltage (840 mV @ 20 A), current rating (10 A), and recovery speed. The primary difference is the maximum junction temperature rating: VS-MBR1035-M3 is rated to 150°C versus MBR1035G at 175°C. Both parts are Schottky diodes in through-hole TO-220-2 packages with ROHS3 compliance.

Q: Are the package dimensions identical between MBR1035G and the substitute parts?

A: All three parts use through-hole TO-220-2 compatible packages. MBR1035G uses TO-220-2 packaging, while STPS1045D uses TO-220AC and VS-MBR1035-M3 uses TO-220AC supplier device packaging. These variants are mechanically compatible for through-hole PCB mounting applications.

Q: Which substitute part should be selected for high-temperature applications?

A: STPS1045D supports the full -65°C to 175°C junction temperature range, matching the MBR1035G specification. VS-MBR1035-M3 is rated to a maximum of 150°C junction temperature. For applications requiring operation at junction temperatures between 150°C and 175°C, STPS1045D is the appropriate selection.

Q: Are both substitute parts RoHS compliant?

A: Both STPS1045D and VS-MBR1035-M3 are ROHS3 compliant, matching the MBR1035G compliance status. Both parts have unlimited moisture sensitivity level (MSL 1) and REACH unaffected status.

Q: What is the inventory availability of these substitute parts?

A: STPS1045D has 55,200 pieces in stock. VS-MBR1035-M3 has 918 pieces in stock. MBR1035G, though obsolete, has 25,200 pieces available as new original stock.