SS14LHM2G Equivalent & Substitute Parts

Part Overview

The SS14LHM2G is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 40V DC reverse voltage and 1A average rectified current in a Sub SMA surface mount package. This component is classified as Active product status and carries AEC-Q101 automotive qualification with ROHS3 compliance.

Equivalent and substitute parts are identified when alternative components satisfy the same electrical and mechanical specifications, enabling design flexibility, inventory optimization, and supply chain continuity. The SS14LHM2G serves as the reference baseline for this substitution analysis.

Substiute Parts

SS14LHM2G

Taiwan Semiconductor CorporationIn Stock: 1077SS14LHM2G Datasheet

Current PartRFQ

SS14L

Taiwan Semiconductor CorporationIn Stock: 23363SS14L Datasheet

Parametric EquivalentRFQ

SS1FL4HM3/H

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SS14LHM2G is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 40V
• Current - Average Rectified (Io): 1A
• Package / Case: DO-219AB
• Mounting Type: Surface Mount
• Technology: Schottky

Allowable Variation Parameters:

• Voltage - Forward (Vf) (Max) @ If: Substitute parts may exhibit lower forward voltage drop (improved performance)
• Current - Reverse Leakage @ Vr: Substitute parts may exhibit lower reverse leakage (improved performance)
• Operating Temperature - Junction: Substitute parts may support extended temperature ranges (improved performance)
• Capacitance @ Vr, F: Substitute parts may include specified capacitance values (additional specification)

Parts are classified as Parametric Equivalent when all mandatory parameters match exactly and all electrical characteristics remain within or improve upon the reference specification. Parts are classified as Similar when manufactured by different suppliers but maintain identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

SS14L (Parametric Equivalent - Taiwan Semiconductor Corporation)

The SS14L is a parametric equivalent to the SS14LHM2G, manufactured by the same supplier with identical electrical specifications and package configuration. Both components meet ROHS3 compliance and MSL 1 requirements. The SS14L carries a "Not For New Designs" product status designation, indicating this part is in mature production phase with limited design-in activity. Selection of SS14L is appropriate for legacy system maintenance, field replacements, and inventory replenishment of existing designs. The SS14L is available in higher inventory quantities (23,321 pcs) compared to the SS14LHM2G (1,039 pcs).

SS1FL4HM3/H (Similar - Vishay General Semiconductor - Diodes Division)

The SS1FL4HM3/H is a similar Schottky rectifier diode manufactured by Vishay, maintaining identical voltage and current ratings with the same DO-219AB package and surface mount configuration. This component demonstrates improved electrical performance characteristics: forward voltage drop is reduced to 500 mV @ 1A (versus 550 mV), and reverse leakage current is reduced to 200 µA @ 40V (versus 400 µA). The SS1FL4HM3/H supports an extended operating temperature range of -55°C to 150°C (versus -55°C to 125°C) and includes specified capacitance of 115 pF @ 4V, 1MHz. Both the SS14LHM2G and SS1FL4HM3/H carry Active product status, AEC-Q101 automotive qualification, and ROHS3 compliance. The SS1FL4HM3/H is available in higher inventory quantities (33,182 pcs) and is supplied on Tape & Reel (TR) packaging.

Selection Criteria Summary:

For new designs and active production requiring automotive-grade Schottky rectifiers with 40V/1A specifications, the SS1FL4HM3/H offers superior electrical performance and extended temperature range with active product status. For existing designs currently using SS14LHM2G, the SS14L provides direct parametric equivalence from the same manufacturer. Both substitute parts maintain full compliance with automotive qualification standards and environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can SS14L be used as a direct replacement for SS14LHM2G in existing designs?

A: Yes. The SS14L is a parametric equivalent with identical electrical specifications (40V reverse voltage, 1A average rectified current, 550 mV forward voltage @ 1A, fast recovery ≤ 500ns) and the same DO-219AB package. Both components are manufactured by Taiwan Semiconductor Corporation and meet ROHS3 compliance. The primary difference is product status: SS14LHM2G is Active while SS14L is Not For New Designs. For field replacements and legacy system support, SS14L is functionally equivalent.

Q: What are the performance differences between SS14LHM2G and SS1FL4HM3/H?

A: Both components meet the same 40V/1A electrical ratings and use identical DO-219AB packaging. The SS1FL4HM3/H demonstrates improved performance: forward voltage drop is 50 mV lower (500 mV versus 550 mV @ 1A), reverse leakage current is 200 µA lower (200 µA versus 400 µA @ 40V), and operating temperature range extends to 150°C (versus 125°C). The SS1FL4HM3/H is manufactured by Vishay and carries Active product status with AEC-Q101 automotive qualification.

Q: Are all three parts suitable for automotive applications?

A: The SS14LHM2G and SS1FL4HM3/H both carry AEC-Q101 automotive qualification and Automotive grade designation. The SS14L does not specify automotive grade or AEC-Q101 qualification in the provided data. For automotive applications requiring formal qualification documentation, SS14LHM2G and SS1FL4HM3/H are the appropriate selections.

Q: What packaging formats are available for these substitute parts?

A: SS14LHM2G is supplied in Sub SMA package format. SS14L is available in Cut Tape (CT) and Digi-Reel® packaging. SS1FL4HM3/H is supplied on Tape & Reel (TR). All three components use the same DO-219AB case style for surface mount assembly. Packaging format selection depends on manufacturing process requirements and inventory management systems.

Q: Can these parts be used interchangeably in high-temperature applications?

A: The SS1FL4HM3/H supports operating temperatures up to 150°C junction temperature, providing a 25°C advantage over SS14LHM2G and SS14L, which are rated to 125°C. For applications requiring operation near or above 125°C, the SS1FL4HM3/H is the appropriate selection.

Q: What is the inventory availability status for these parts?

A: SS14LHM2G has 1,039 pcs in stock. SS14L has 23,321 pcs in stock. SS1FL4HM3/H has 33,182 pcs in stock. Higher inventory availability for substitute parts may support extended production runs and reduce supply chain risk.

Q: Are all parts RoHS and REACH compliant?

A: Yes. All three components (SS14LHM2G, SS14L, and SS1FL4HM3/H) are ROHS3 Compliant and REACH Unaffected. All components carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling.