SS12LHM2G Equivalent & Substitute Parts

Part Overview

The SS12LHM2G is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 20 V DC reverse voltage and 1 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 with ROHS3 compliance.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design flexibility is required across manufacturing sources. The SS12LHM2G has identified equivalent and similar alternatives that maintain electrical and mechanical compatibility within specified parameter tolerances.

Substiute Parts

SS12LHM2G

Taiwan Semiconductor CorporationIn Stock: 852SS12LHM2G Datasheet

Current PartRFQ

SS12L

Taiwan Semiconductor CorporationIn Stock: 1536SS12L Datasheet

Parametric EquivalentRFQ

SL02-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 43948SL02-GS08 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SS12LHM2G is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 20 V
• Package / Case: DO-219AB
• Mounting Type: Surface Mount
• Technology: Schottky
• Operating Temperature Range: -55°C to 125°C minimum

Allowable Parameter Variance:

• Current - Average Rectified (Io): Equal to or greater than 1 A
• Voltage - Forward (Vf) (Max) @ If: Equal to or less than 450 mV
• Current - Reverse Leakage @ Vr: Equal to or less than 400 µA @ 20 V
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Substitute parts are classified into two categories: Parametric Equivalent (identical electrical specifications) and Similar (improved or equivalent performance within allowable variance).

Parameter Comparison

Engineering Selection Recommendations

SS12L (Taiwan Semiconductor Corporation)

The SS12L is a parametric equivalent to the SS12LHM2G with identical electrical specifications. However, this part carries a "Not For New Designs" product status designation. Selection of SS12L is appropriate only for replacement, repair, or continuation of existing production where design lock-in has been established. For new circuit designs, the active-status SS12LHM2G or SL02-GS08 is preferred.

SL02-GS08 (Vishay General Semiconductor - Diodes Division)

The SL02-GS08 is a similar substitute with improved electrical performance characteristics. It provides higher average rectified current (1.1 A versus 1 A), lower forward voltage drop (420 mV versus 450 mV), and reduced reverse leakage current (250 µA versus 400 µA). The SL02-GS08 carries Active product status and full ROHS3 compliance. This part is suitable for new designs and offers superior thermal and efficiency performance within the same DO-219AB package footprint. The operating temperature maximum specification differs (125°C max versus -55 to 125°C range); applications requiring the full -55°C minimum operating temperature must verify compatibility.

Frequently Asked Questions (FAQ)

Q: Can SS12L be used as a direct replacement for SS12LHM2G in production?

A: SS12L meets all electrical and mechanical parameter requirements for direct substitution. However, its "Not For New Designs" status indicates it is in end-of-life phase. Use SS12L only for existing production continuity or repair applications where design qualification has already been completed.

Q: What are the key differences between SL02-GS08 and SS12LHM2G?

A: The SL02-GS08 provides improved performance: 1.1 A current rating (versus 1 A), lower forward voltage drop of 420 mV (versus 450 mV), and lower reverse leakage of 250 µA (versus 400 µA). Both parts share identical 20 V reverse voltage rating and DO-219AB package. The SL02-GS08 specifies a maximum operating temperature of 125°C; verify this meets application requirements if operation below -55°C is needed.

Q: Are all three parts pin-compatible?

A: Yes. SS12LHM2G, SS12L, and SL02-GS08 all use the DO-219AB package with identical pinout and footprint. Surface mount assembly equipment and PCB layouts require no modification for substitution.

Q: Which substitute part should be selected for new circuit designs?

A: For new designs, select SL02-GS08 (Active status, improved performance) or SS12LHM2G (Active status, original specification). Avoid SS12L due to its "Not For New Designs" designation.

Q: Do all substitute parts carry the same compliance certifications?

A: All three parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating. SS12LHM2G carries AEC-Q101 automotive qualification; verify whether this certification is required for your application before substituting with SL02-GS08 or SS12L.

Q: What is the impact of the SL02-GS08 lower forward voltage drop on circuit performance?

A: The 30 mV reduction in forward voltage drop (420 mV versus 450 mV) results in lower power dissipation and improved efficiency. This is a beneficial characteristic for thermal management and power budget optimization. No circuit redesign is required; the lower voltage drop is a performance improvement.

Q: Can SL02-GS08 be used in automotive applications requiring AEC-Q101 qualification?

A: SL02-GS08 does not carry AEC-Q101 qualification in the provided specifications. If automotive qualification is a mandatory requirement, use SS12LHM2G or SS12L. Verify with Vishay whether AEC-Q101 qualified variants of SL02-GS08 are available.