SS310LHM2G Equivalent & Substitute Parts

Part Overview

The SS310LHM2G is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100 V DC reverse voltage and 3 A average rectified current in a Sub SMA surface mount package. This component is classified as Active product status and carries AEC-Q101 automotive qualification. Substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design revisions necessitate component sourcing from multiple suppliers while maintaining electrical and mechanical compatibility.

Substiute Parts

SS310LHM2G

Taiwan Semiconductor CorporationIn Stock: 936SS310LHM2G Datasheet

Current PartRFQ

SS310L

Taiwan Semiconductor CorporationIn Stock: 9769SS310L Datasheet

Parametric EquivalentRFQ

SS1FH10-M3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 25151SS1FH10-M3/H Datasheet

SimilarRFQ

SS1FH10HM3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 130271SS1FH10HM3/H Datasheet

SimilarRFQ

SS2FH10-M3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 14615SS2FH10-M3/H Datasheet

SimilarRFQ

SS2FH10HM3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 21293SS2FH10HM3/H Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS310LHM2G is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Voltage - DC Reverse (Vr) (Max): 100 V
• Package / Case: DO-219AB
• Mounting Type: Surface Mount
• Technology: Schottky
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Current Rating Considerations: The SS310LHM2G is rated for 3 A average rectified current. Substitute parts with lower current ratings (1 A or 2 A) are classified as similar parts rather than parametric equivalents, as they cannot support the full 3 A specification. These lower-rated devices are suitable only for applications with reduced current requirements.

Parametric Equivalent: The SS310L from Taiwan Semiconductor Corporation maintains identical electrical specifications (100 V, 3 A, 850 mV forward voltage) and package format. The primary distinction is product status (Not For New Designs) and packaging format (Tape & Reel versus unspecified for the main part).

Similar Parts (Current Derating): The SS1FH10-M3/H, SS1FH10HM3/H, SS2FH10-M3/H, and SS2FH10HM3/H from Vishay General Semiconductor - Diodes Division share the 100 V reverse voltage rating and DO-219AB package but are rated for 1 A or 2 A respectively. These devices are electrically compatible at reduced current levels and are suitable for applications where the full 3 A capability is not required.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalent):

The SS310L is the only parametric equivalent to the SS310LHM2G, maintaining identical electrical specifications across all critical parameters including 100 V reverse voltage, 3 A current rating, and 850 mV forward voltage. However, the SS310L carries a "Not For New Designs" product status, restricting its use to legacy system maintenance and field replacements only. New designs must utilize the SS310LHM2G or equivalent active-status alternatives.

For Current-Reduced Applications (Similar Parts):

The Vishay eSMP® series devices (SS1FH10-M3/H, SS1FH10HM3/H, SS2FH10-M3/H, SS2FH10HM3/H) are suitable substitutes only when application requirements permit current derating. These parts maintain the 100 V reverse voltage specification and DO-219AB package compatibility but are rated for 1 A or 2 A respectively. Selection between 1 A and 2 A variants depends on actual circuit current requirements.

Automotive and Compliance Considerations:

For automotive applications requiring AEC-Q101 qualification, the SS310LHM2G (main part), SS1FH10HM3/H, and SS2FH10HM3/H are qualified options. The SS310L and Vishay parts without explicit automotive grade designation (SS1FH10-M3/H and SS2FH10-M3/H) are not suitable for automotive applications despite RoHS3 compliance.

Temperature Range Considerations:

The SS310LHM2G and SS310L operate across -55°C to 150°C. The Vishay eSMP® series extends the upper operating temperature to 175°C, providing additional thermal margin in high-temperature environments. This extended range does not affect substitution compatibility but may be advantageous for thermal-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can the SS310L be used as a direct replacement for the SS310LHM2G in new designs?

A: No. The SS310L carries "Not For New Designs" product status and is restricted to legacy system support and field replacements. New designs must use the SS310LHM2G or equivalent active-status parts.

Q: What is the difference between the SS310LHM2G and SS310L?

A: Both parts are manufactured by Taiwan Semiconductor Corporation with identical electrical specifications (100 V, 3 A, 850 mV forward voltage) and DO-219AB packaging. The primary differences are product status (Active versus Not For New Designs) and packaging format (unspecified for SS310LHM2G versus Tape & Reel for SS310L).

Q: Can I use the SS1FH10HM3/H (1 A rated) in place of the SS310LHM2G (3 A rated)?

A: The SS1FH10HM3/H is electrically compatible at the 100 V reverse voltage level and shares the DO-219AB package. However, it is rated for only 1 A average rectified current compared to the 3 A specification of the SS310LHM2G. Substitution is valid only if the application circuit operates at or below 1 A. Exceeding this current rating will cause device failure.

Q: Are the Vishay eSMP® series parts (SS1FH10 and SS2FH10 variants) suitable for automotive applications?

A: The SS1FH10HM3/H and SS2FH10HM3/H carry AEC-Q101 automotive qualification and are suitable for automotive applications. The SS1FH10-M3/H and SS2FH10-M3/H do not carry explicit automotive grade designation and are not suitable for automotive use despite RoHS3 compliance.

Q: What is the significance of the operating temperature range difference between the SS310LHM2G (-55°C to 150°C) and Vishay parts (-55°C to 175°C)?

A: The Vishay eSMP® series provides a 25°C higher maximum junction temperature rating. This extended range does not affect electrical compatibility but may provide thermal design margin in applications operating near the upper temperature limit. The SS310LHM2G remains the appropriate choice for applications within its specified temperature range.

Q: Can I mix SS310LHM2G and SS310L parts in the same production batch?

A: Both parts maintain identical electrical specifications and package format, allowing functional interchangeability within a single circuit. However, mixing parts with different product statuses (Active versus Not For New Designs) is not recommended for new production runs. Maintain consistent part sourcing for traceability and supply chain management.

Q: What packaging formats are available for the SS310LHM2G and its substitutes?

A: The SS310LHM2G packaging format is not explicitly specified in the data. The SS310L is available in Tape & Reel format. The Vishay eSMP® series is available in multiple formats: SS1FH10-M3/H and SS2FH10-M3/H in Cut Tape & Digi-Reel®, and SS1FH10HM3/H and SS2FH10HM3/H in Tape & Reel. Packaging selection depends on manufacturing process requirements (automated pick-and-place versus manual assembly).

Q: How do the reverse leakage current specifications compare between the main part and substitutes?

A: The SS310LHM2G and SS310L specify 100 µA reverse leakage at 100 V. The Vishay eSMP® series specifies 5 µA at 100 V (or 10 V for SS2FH10-M3/H), representing significantly lower leakage. Lower leakage current may be advantageous in precision analog circuits but does not affect digital switching applications.

Q: Is the SS310LHM2G RoHS compliant?

A: Yes. The SS310LHM2G is ROHS3 Compliant with REACH Unaffected status. All listed substitute parts maintain identical RoHS3 compliance, ensuring compatibility with environmental regulations across all substitution options.