SS12LHRFG Equivalent & Substitute Parts

Part Overview

The SS12LHRFG is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 20V 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.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter set. The SS12LHRFG serves as the primary reference for this equivalency analysis.

Substiute Parts

SS12LHRFG

Taiwan Semiconductor CorporationIn Stock: 1174SS12LHRFG 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 SS12LHRFG is determined by the following critical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): Must equal or exceed 20V
• Current - Average Rectified (Io): Must equal or exceed 1A
• Technology: Must be Schottky diode
• Speed Classification: Must maintain Fast Recovery characteristics (≤ 500ns, > 200mA)

Mechanical Compatibility Criteria:

• Package / Case: Must be DO-219AB
• Mounting Type: Must be Surface Mount
• Operating Temperature Range: Must support -55°C to 125°C junction temperature

Compliance Requirements:

• RoHS Status: Must be ROHS3 Compliant
• Moisture Sensitivity Level: Must be MSL 1 (Unlimited)

Substitute parts are classified into two categories:

Parametric Equivalent: Parts meeting all electrical and mechanical criteria with identical or superior performance within the specified parameter set.

Similar Manufacturer Part: Parts meeting all electrical and mechanical criteria with minor performance variations in non-critical parameters (such as forward voltage or reverse leakage current) that remain within acceptable operational margins.

Parameter Comparison

Engineering Selection Recommendations

SS12L (Parametric Equivalent): The SS12L maintains identical electrical specifications and mechanical compatibility with the SS12LHRFG. Both components are manufactured by Taiwan Semiconductor Corporation and share the same base product number (SS12). The SS12L is classified as "Not For New Designs," indicating it is a legacy product. For new design implementations, the SS12LHRFG is the preferred selection due to its Active product status. The SS12L remains suitable for replacement applications in existing designs where component availability or inventory considerations apply.

SL02-GS08 (Similar Manufacturer): The SL02-GS08, manufactured by Vishay General Semiconductor - Diodes Division, meets all substitution criteria with enhanced performance characteristics. This component provides 1.1A average rectified current (exceeding the 1A requirement), reduced forward voltage (420 mV versus 450 mV), and lower reverse leakage current (250 µA versus 400 µA). The SL02-GS08 maintains DO-219AB package compatibility and Surface Mount mounting type. Both components are ROHS3 compliant and MSL 1 rated. The SL02-GS08 carries Active product status and is suitable for new designs. The operating temperature maximum of 125°C aligns with the SS12LHRFG junction temperature range.

Compliance and Qualification: The SS12LHRFG carries AEC-Q101 automotive qualification. The SS12L shares this automotive-grade classification through Taiwan Semiconductor Corporation's product line. The SL02-GS08 is manufactured by Vishay, a qualified supplier in automotive applications. All three components are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the SS12L be used as a direct replacement for the SS12LHRFG?

A: The SS12L meets all electrical and mechanical substitution criteria. Both components share identical voltage ratings (20V), current ratings (1A), forward voltage characteristics (450 mV @ 1A), and package specifications (DO-219AB Sub SMA). The primary distinction is product status: SS12LHRFG is Active while SS12L is Not For New Designs. For existing designs requiring component replacement, the SS12L is electrically and mechanically compatible.

Q: What are the performance differences between the SS12LHRFG and SL02-GS08?

A: The SL02-GS08 provides enhanced performance in three parameters: (1) Current rating of 1.1A versus 1A, providing 10% additional current capacity; (2) Forward voltage of 420 mV versus 450 mV, reducing power dissipation; (3) Reverse leakage current of 250 µA versus 400 µA, improving efficiency. All other electrical characteristics and mechanical specifications remain equivalent. Both components are rated for -55°C to 125°C operation and use the DO-219AB package.

Q: Are all three parts suitable for automotive applications?

A: The SS12LHRFG carries explicit AEC-Q101 automotive qualification. The SS12L, as a Taiwan Semiconductor Corporation product within the same SS12 base product family, is automotive-grade. The SL02-GS08 is manufactured by Vishay, a recognized automotive supplier. All three components are ROHS3 compliant and meet environmental standards for automotive use.

Q: What is the significance of the DO-219AB package designation?

A: The DO-219AB package, also designated as Sub SMA or SMF (Surface Mount Form), is a standardized surface mount package for small signal diodes. All three substitute parts use this identical package, ensuring mechanical compatibility with existing PCB layouts, solder pad configurations, and automated assembly processes.

Q: Can the SL02-GS08 be used in applications designed for the SS12LHRFG?

A: The SL02-GS08 meets all substitution criteria and provides equivalent or superior performance. The higher current rating (1.1A), lower forward voltage (420 mV), and reduced reverse leakage (250 µA) make it suitable for applications designed for the SS12LHRFG. Both components maintain the same voltage rating (20V), package type (DO-219AB), and operating temperature range (125°C maximum junction temperature).

Q: What does "Not For New Designs" mean for the SS12L?

A: "Not For New Designs" indicates that the SS12L is a legacy or obsolete product that Taiwan Semiconductor Corporation no longer recommends for new circuit designs. This classification does not affect electrical or mechanical compatibility; it reflects the manufacturer's product lifecycle status. The SS12L remains suitable for replacement in existing designs or where specific inventory requirements apply.

Q: Are there any moisture sensitivity considerations for these parts?

A: All three components carry Moisture Sensitivity Level (MSL) 1, classified as "Unlimited." This designation indicates no moisture sensitivity restrictions during storage, handling, or assembly processes. Standard PCB assembly procedures are appropriate for all three parts without special moisture control measures.

Q: How do the reverse recovery time specifications compare?

A: The SS12LHRFG and SS12L both specify Fast Recovery characteristics (≤ 500ns, > 200mA). The SL02-GS08 provides an explicit reverse recovery time specification of 10 ns, which is significantly faster and represents superior performance. This faster recovery time reduces switching losses and improves efficiency in high-frequency applications.