MBR230LSFT1H Equivalent & Substitute Parts

Part Overview

The MBR230LSFT1H is a Schottky rectifier diode manufactured by onsemi, rated for 30 V DC reverse voltage and 2 A average rectified current in a surface mount SOD-123F package. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. Substitute parts must maintain electrical performance across voltage, current, and thermal specifications while accommodating package and availability constraints.

Substiute Parts

MBR230LSFT1H

onsemiIn Stock: 1085MBR230LSFT1H Datasheet

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MBR230LSFT1G

onsemiIn Stock: 41118MBR230LSFT1G Datasheet

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SS2FL3-M3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 44829SS2FL3-M3/H Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MBR230LSFT1H are classified into two categories based on electrical and mechanical compatibility:

Direct Equivalent (Identical Electrical & Package Specifications): Substitute parts in this category maintain all critical electrical parameters: 30 V reverse voltage rating, 2 A average rectified current, 430 mV forward voltage drop at 2 A, and fast recovery characteristics. These parts are housed in the same SOD-123F package, ensuring mechanical and thermal compatibility with existing PCB layouts and thermal management designs.

Functional Equivalent (Matching Electrical Performance, Different Package): Substitute parts in this category meet all electrical performance requirements but utilize an alternative surface mount package (DO-219AB). These parts are selected when package footprint differences are acceptable or when superior thermal or mechanical characteristics are required. Functional equivalents must maintain the same voltage and current ratings, fast recovery speed classification, and operating temperature range.

Key Parameters for Substitution Eligibility:

• Voltage - DC Reverse (Vr) (Max): 30 V (required)
• Current - Average Rectified (Io): 2 A (required)
• Technology: Schottky (required)
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (required)
• Mounting Type: Surface Mount (required)
• Operating Temperature Range: -55°C minimum, 125°C minimum (required)

Parameter Comparison

Engineering Selection Recommendations

MBR230LSFT1G (Direct Equivalent - Recommended Primary Substitute): The MBR230LSFT1G is the direct equivalent replacement for the obsolete MBR230LSFT1H. Both parts are manufactured by onsemi and share identical electrical specifications, package geometry, and thermal characteristics. The MBR230LSFT1G maintains active product status with substantial inventory availability (41,100 units), ensuring supply chain continuity. This part requires no PCB layout modifications and provides drop-in compatibility. Both parts carry ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for new designs.

SS2FL3-M3/H (Functional Equivalent - Alternative Selection): The SS2FL3-M3/H manufactured by Vishay General Semiconductor meets all critical electrical performance requirements: 30 V reverse voltage, 2 A average rectified current, and fast recovery characteristics. This part utilizes the DO-219AB package instead of SOD-123F, requiring PCB layout evaluation. The SS2FL3-M3/H exhibits superior reverse leakage characteristics (200 µA versus 1 mA at 30 V) and extended operating temperature range (-55°C to 150°C versus -55°C to 125°C). Forward voltage drop is higher at 540 mV compared to 430 mV, resulting in increased power dissipation in high-current applications. This part is suitable for designs where package footprint differences are acceptable and thermal performance is not constrained. ROHS3 compliance and REACH unaffected status are maintained.

Frequently Asked Questions (FAQ)

Q: Can MBR230LSFT1G be used as a direct replacement for MBR230LSFT1H without PCB modifications?

A: Yes. The MBR230LSFT1G is a direct equivalent with identical package geometry (SOD-123F), electrical ratings, and thermal characteristics. No PCB layout changes are required.

Q: What are the key differences between MBR230LSFT1G and SS2FL3-M3/H?

A: The primary differences are package type (SOD-123F versus DO-219AB), forward voltage drop (430 mV versus 540 mV at 2 A), reverse leakage current (1 mA versus 200 µA at 30 V), and maximum operating temperature (125°C versus 150°C). Electrical ratings for voltage and current are identical.

Q: Will the SS2FL3-M3/H generate more heat than the MBR230LSFT1H?

A: The SS2FL3-M3/H exhibits higher forward voltage drop (540 mV versus 430 mV at 2 A), resulting in increased power dissipation. Thermal design calculations are required to determine if additional heat management is necessary for the specific application.

Q: Are both substitute parts compliant with RoHS and REACH regulations?

A: Yes. Both MBR230LSFT1G and SS2FL3-M3/H are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: Can the SS2FL3-M3/H be used in applications requiring the -55°C to 125°C temperature range?

A: Yes. The SS2FL3-M3/H supports the -55°C to 125°C range and extends to 150°C, providing compatibility with the original specification and additional margin for higher-temperature environments.

Q: What is the inventory status of substitute parts?

A: MBR230LSFT1G has 41,100 units in stock. SS2FL3-M3/H has 44,746 units in stock. Both parts are actively manufactured and available for immediate procurement.

Q: Do the substitute parts maintain the same fast recovery characteristics?

A: Yes. Both MBR230LSFT1G and SS2FL3-M3/H maintain fast recovery characteristics of ≤ 500ns for currents > 200mA (Io), matching the original MBR230LSFT1H specification.