SS24L R3G Equivalent & Substitute Parts

Part Overview

The SS24L R3G is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the Sub SMA package format. This component operates at 40V DC reverse voltage with a 2A average rectified current rating and features fast recovery characteristics suitable for high-frequency switching applications. The part is currently in active production status with 1109 units available in inventory. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and component availability options for applications requiring compatible electrical and mechanical specifications.

Substiute Parts

SS24L R3G

Taiwan Semiconductor CorporationIn Stock: 1121SS24L R3G 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 R3G is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 40V
• Package / Case: DO-219AB
• Mounting Type: Surface Mount
• Technology: Schottky
• Operating Temperature Range: -55°C to 150°C
• RoHS3 Compliance
• MSL Rating: 1 (Unlimited)

Allowable Variation Parameters:

• Current - Average Rectified (Io): Substitute parts must equal or exceed the 2A requirement
• Voltage - Forward (Vf) (Max): Substitute parts must not exceed 500 mV @ rated current
• Current - Reverse Leakage @ Vr: Substitute parts must not exceed 400 µA @ 40V
• Speed: Substitute parts must maintain Fast Recovery ≤ 500ns, > 200mA (Io)

The SS1FL4HM3/H from Vishay General Semiconductor qualifies as a substitute based on matching voltage rating, package type, mounting configuration, and compliance certifications. However, the current rating differs at 1A versus the 2A specification of the main part.

Parameter Comparison

Engineering Selection Recommendations

SS24L R3G (Primary Component)

The SS24L R3G remains the primary selection for applications requiring the full 2A average rectified current specification. This component is in active production status with substantial inventory availability (1109 units). It meets all regulatory requirements including ROHS3 compliance and REACH unaffected status, suitable for deployment in regulated industries.

SS1FL4HM3/H (Substitute Component)

The SS1FL4HM3/H qualifies as a substitute for applications where the current requirement does not exceed 1A. This component is manufactured by Vishay General Semiconductor and carries AEC-Q101 automotive qualification, indicating enhanced reliability screening. The substitute part demonstrates superior reverse leakage characteristics (200 µA versus 400 µA @ 40V) and maintains identical voltage ratings, package configuration, and thermal operating range. Inventory availability is significantly higher at 33182 units. Selection of this substitute is appropriate only when circuit design confirms maximum current draw remains at or below 1A.

Both parts maintain identical compliance certifications and thermal specifications, ensuring functional compatibility within their respective current ratings.

Frequently Asked Questions (FAQ)

Q: Can the SS1FL4HM3/H directly replace the SS24L R3G in all applications?

A: The SS1FL4HM3/H is a direct mechanical and electrical substitute only for applications where the maximum average rectified current does not exceed 1A. The substitute part is rated for 1A while the main part is rated for 2A. Circuit analysis must confirm that operating current remains within the 1A limit of the substitute component.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Substitution is determined by matching voltage rating (40V DC reverse), forward voltage drop (500 mV maximum), reverse leakage current (not exceeding 400 µA @ 40V), and recovery speed (fast recovery ≤ 500ns). Both parts meet these criteria within their respective current ratings.

Q: Are the packages physically identical?

A: Both the SS24L R3G and SS1FL4HM3/H use the DO-219AB package format for surface mount applications. Physical dimensions and PCB footprints are identical, allowing direct board-level substitution without layout modifications.

Q: What compliance certifications apply to both parts?

A: Both components are ROHS3 compliant, REACH unaffected, and rated for MSL 1 (unlimited moisture sensitivity level). The SS1FL4HM3/H carries additional AEC-Q101 automotive qualification.

Q: How do the reverse leakage characteristics compare?

A: The SS1FL4HM3/H exhibits lower reverse leakage at 200 µA @ 40V compared to the SS24L R3G at 400 µA @ 40V. Lower leakage current represents improved performance in this parameter.

Q: What is the operating temperature range for both parts?

A: Both components operate across an identical junction temperature range of -55°C to 150°C, ensuring thermal compatibility in equivalent applications.

Q: Are there packaging format differences between the two parts?

A: The SS24L R3G is supplied in Sub SMA format, while the SS1FL4HM3/H is supplied in Tape & Reel (TR) format. Both use the DO-219AB package case. Tape & Reel packaging is standard for automated assembly processes.

Q: What inventory considerations should influence part selection?

A: The SS24L R3G has 1109 units in stock, while the SS1FL4HM3/H has 33182 units available. Higher inventory availability of the substitute part may provide supply chain advantages for high-volume production requirements.