VS-MBR3045CT-M3 Equivalent & Substitute Parts

Part Overview

The VS-MBR3045CT-M3 is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration with a maximum reverse voltage of 45 V and average rectified current of 15 A per diode. The part is packaged in TO-220-3 through-hole format and is classified as Active product status with ROHS3 compliance.

Equivalent and substitute parts are identified when design requirements necessitate alternative packaging formats, different mounting technologies, or when primary inventory availability requires sourcing from alternative manufacturers while maintaining electrical performance specifications.

Substiute Parts

VS-MBR3045CT-M3

Vishay General Semiconductor - Diodes DivisionIn Stock: 881VS-MBR3045CT-M3 Datasheet

Current PartRFQ

VS-MBR3045WT-N3

Vishay General Semiconductor - Diodes DivisionIn Stock: 2063VS-MBR3045WT-N3 Datasheet

Parametric EquivalentRFQ

30CTQ045

Diotec SemiconductorIn Stock: 191430CTQ045 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the VS-MBR3045CT-M3 are identified based on strict electrical and mechanical parameter matching. The substitution logic is organized into two categories:

Parametric Equivalent (Same Electrical Specifications, Different Package): Parts that maintain identical electrical performance across all critical parameters including reverse voltage, rectified current, forward voltage, leakage current, and recovery speed, but differ in physical packaging or mounting technology.

Manufacturer Recommended Equivalent (Different Mounting Technology): Parts that satisfy the core electrical requirements but utilize alternative mounting methods or package formats, suitable for applications where board layout or thermal management strategies differ from the original design.

Key Parameters Determining Substitution Eligibility:

• Diode Configuration: 1 Pair Common Cathode (mandatory match)
• Technology: Schottky (mandatory match)
• Voltage - DC Reverse (Vr) (Max): 45 V (mandatory match)
• Current - Average Rectified (Io) (per Diode): 15 A (mandatory match)
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (mandatory match)
• RoHS Status: ROHS3 Compliant (mandatory match)

Parameter Comparison

Engineering Selection Recommendations

VS-MBR3045WT-N3 (Vishay General Semiconductor - Diodes Division): This part is a parametric equivalent offering identical electrical specifications to the VS-MBR3045CT-M3. The primary distinction is the package format: TO-247-3 versus TO-220-3. Both are through-hole mounted components. Selection of this substitute is appropriate when board layout constraints or thermal dissipation requirements favor the TO-247-3 package geometry. Both parts maintain Active product status and ROHS3 compliance. Current inventory availability is 1964 units.

30CTQ045 (Diotec Semiconductor): This part satisfies all mandatory electrical parameters including 45 V reverse voltage, 15 A rectified current, Schottky technology, and fast recovery speed. The primary differences are: (1) Surface mount packaging (TO-263-3, D2PAK) versus through-hole mounting, (2) Lower forward voltage specification (620 mV @ 15 A versus 760 mV @ 30 A), and (3) Lower reverse leakage current (50 µA @ 45 V versus 1 mA @ 45 V). This substitute is suitable for surface-mount board designs where the alternative mounting technology is compatible with assembly processes. The part maintains Active product status and ROHS3 compliance. Current inventory availability is 1894 units.

All substitute parts are Active products with ROHS3 compliance and REACH compliance status documented.

Frequently Asked Questions (FAQ)

Q: Can VS-MBR3045WT-N3 be used as a direct replacement for VS-MBR3045CT-M3 in existing through-hole PCB designs?

A: VS-MBR3045WT-N3 maintains identical electrical specifications and through-hole mounting technology. The package format differs (TO-247-3 versus TO-220-3), requiring verification that PCB footprint and lead spacing accommodate the alternative package geometry. Both components are pin-compatible in terms of electrical function (1 Pair Common Cathode configuration).

Q: What are the key differences between the Vishay parts and the Diotec 30CTQ045?

A: The primary differences are mounting technology (surface mount versus through-hole) and electrical characteristics. The 30CTQ045 exhibits lower forward voltage (620 mV @ 15 A) and significantly lower reverse leakage current (50 µA @ 45 V). These differences may impact thermal performance and leakage current budgets in the application circuit. The 30CTQ045 is suitable only for surface-mount PCB designs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. VS-MBR3045CT-M3, VS-MBR3045WT-N3, and 30CTQ045 are all ROHS3 compliant.

Q: What is the moisture sensitivity level difference between the parts?

A: VS-MBR3045CT-M3 and VS-MBR3045WT-N3 are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. The 30CTQ045 is surface-mount packaged and carries MSL designation as Not Applicable, as surface-mount components follow different moisture handling protocols.

Q: Can the 30CTQ045 be used in a through-hole PCB design?

A: No. The 30CTQ045 is surface-mount packaged (TO-263-3, D2PAK). It requires surface-mount assembly processes and cannot be installed in through-hole PCB designs without significant board redesign.

Q: Which substitute part should be selected for maximum inventory availability?

A: VS-MBR3045WT-N3 offers the highest current inventory at 1964 units, followed by 30CTQ045 at 1894 units. Selection should be based on package compatibility with the target PCB design rather than inventory levels alone.