SS24L MTG Equivalent & Substitute Parts

Part Overview

The SS24L MTG is an active Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the Sub SMA package format. This component operates at a maximum reverse voltage of 40 V with an average rectified current rating of 2 A, featuring fast recovery characteristics suitable for high-frequency switching applications. The part is RoHS3 compliant and carries unlimited moisture sensitivity classification, indicating robust reliability for standard industrial and commercial environments.

Equivalent and substitute parts are identified to provide design flexibility, support supply chain continuity, and accommodate specific application requirements such as automotive qualification or alternative packaging preferences while maintaining functional compatibility within defined electrical parameters.

Substiute Parts

SS24L MTG

Taiwan Semiconductor CorporationIn Stock: 1166SS24L MTG Datasheet

Current PartRFQ

SS1FL4HM3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 33227SS1FL4HM3/H Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS24L MTG is determined by strict equivalence across the following critical electrical and mechanical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 40 V
• Package / Case: DO-219AB
• Mounting Type: Surface Mount
• Technology: Schottky
• Operating Temperature - Junction: -55°C to 150°C
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Allowable Variation Parameters:

• Current - Average Rectified (Io): Substitute parts rated at equal or greater current capacity are functionally compatible
• Voltage - Forward (Vf) (Max) @ If: Substitute parts with equal or lower forward voltage drop are compatible
• Current - Reverse Leakage @ Vr: Substitute parts with equal or lower reverse leakage are compatible

The SS1FL4HM3/H from Vishay General Semiconductor - Diodes Division meets all mandatory matching parameters. The substitute part operates at 1 A average rectified current, which is lower than the main part's 2 A rating. This represents a derating condition and requires circuit-level evaluation to confirm suitability for the intended application.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitution Consideration:

The SS1FL4HM3/H is electrically and mechanically compatible with the SS24L MTG across all mandatory parameters. Both components are active products with RoHS3 compliance and identical operating temperature ranges. The substitute part carries AEC-Q101 automotive qualification, which provides additional reliability assurance for applications requiring automotive-grade components.

Current Rating Differential:

The substitute part is rated at 1 A average rectified current compared to the main part's 2 A rating. Applications operating at or below 1 A average rectified current can directly substitute the SS1FL4HM3/H without derating concerns. Applications requiring the full 2 A capacity of the SS24L MTG must retain the original part or identify alternative substitutes with equivalent 2 A current ratings.

Reverse Leakage Advantage:

The SS1FL4HM3/H exhibits lower reverse leakage current (200 µA @ 40 V) compared to the main part (400 µA @ 40 V), representing superior leakage performance and potential benefits for low-power or precision applications.

Packaging and Supply:

Both parts utilize identical DO-219AB surface mount packaging and are available in active production status. The substitute part is available in Tape & Reel packaging format, which may align with specific procurement or assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can the SS1FL4HM3/H directly replace the SS24L MTG in all applications?

A: Direct substitution is limited by the current rating differential. The SS1FL4HM3/H is rated at 1 A average rectified current, while the SS24L MTG is rated at 2 A. Applications operating at or below 1 A can use the substitute part. Applications requiring 2 A operation must retain the original part or identify alternative 2 A-rated substitutes.

Q: Are the package dimensions identical between these two parts?

A: Both parts use the DO-219AB package format for surface mount applications. This package designation ensures mechanical and footprint compatibility on printed circuit boards designed for either component.

Q: What is the significance of the AEC-Q101 qualification on the substitute part?

A: AEC-Q101 is an automotive industry qualification standard. The SS1FL4HM3/H carries this qualification, indicating it meets automotive reliability and testing requirements. This qualification is not specified for the SS24L MTG. Applications requiring automotive-grade components benefit from this additional certification on the substitute part.

Q: Are there differences in forward voltage characteristics between these parts?

A: Both parts specify 500 mV maximum forward voltage drop. The SS24L MTG specifies this at 2 A, while the SS1FL4HM3/H specifies this at 1 A. Forward voltage characteristics are measured at their respective rated currents and are comparable within their operating ranges.

Q: How do the reverse leakage currents compare?

A: The SS1FL4HM3/H exhibits 200 µA reverse leakage at 40 V, while the SS24L MTG exhibits 400 µA at 40 V. The substitute part demonstrates lower leakage, which is advantageous for applications sensitive to reverse current performance.

Q: Are both parts RoHS compliant?

A: Yes, both the SS24L MTG and SS1FL4HM3/H are ROHS3 compliant, meeting environmental and hazardous substance restrictions applicable to electronic components.

Q: What is the moisture sensitivity classification for both parts?

A: Both parts carry MSL 1 (Unlimited) classification, indicating they have unlimited shelf life and do not require special moisture control during storage or handling.

Q: Can I use the SS1FL4HM3/H in a circuit designed for 2 A operation?

A: No. The SS1FL4HM3/H is rated at 1 A average rectified current. Using it in a circuit requiring 2 A operation would exceed the component's current rating and create reliability risks. The original SS24L MTG or an alternative 2 A-rated substitute must be used for such applications.