SS12L RQG Equivalent & Substitute Parts

Part Overview

The SS12L RQG 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 (DO-219AB). This component is classified as Active product status and is fully RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support applications requiring alternative packaging formats or enhanced electrical performance within the same voltage and current class.

Substiute Parts

SS12L RQG

Taiwan Semiconductor CorporationIn Stock: 689SS12L RQG 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

Substitute parts for the SS12L RQG are identified based on strict electrical and mechanical parameter matching within the Schottky rectifier diode category. The primary substitution criteria are:

Critical Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 20 V
• Package / Case: DO-219AB (Sub SMA / SMF variants)
• Mounting Type: Surface Mount
• Technology: Schottky
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• RoHS3 Compliance
• MSL 1 Rating

Allowable Variation Parameters:

• Current - Average Rectified (Io): 1 A to 1.1 A (upward compatible)
• Voltage - Forward (Vf) (Max) @ If: 420 mV to 450 mV (lower forward voltage acceptable)
• Current - Reverse Leakage @ Vr: 250 µA to 400 µA (lower leakage acceptable)
• Packaging Format: Bulk or Tape & Reel (TR)
• Product Status: Active or Not For New Designs

Substitutes are grouped as parametric equivalents (identical base specifications) and similar parts (enhanced performance within the same voltage and current class).

Parameter Comparison

Engineering Selection Recommendations

SS12L (Parametric Equivalent): This part is a direct parametric equivalent to the SS12L RQG with identical electrical specifications and package designation. The primary difference is packaging format (Tape & Reel vs. bulk) and product status classification as "Not For New Designs." This designation indicates the part remains available but is not recommended for new circuit designs. Selection of this substitute is appropriate only when supply constraints on the main part necessitate alternative sourcing and the design timeline permits use of legacy-status components. Compliance certifications (RoHS3, MSL 1) are equivalent.

SL02-GS08 (Similar - Vishay): This Vishay General Semiconductor part provides enhanced electrical performance within the same voltage and current class. The SL02-GS08 offers 1.1 A average rectified current (10% higher than the main part), lower forward voltage drop (420 mV vs. 450 mV), and lower reverse leakage current (250 µA vs. 400 µA). The part maintains identical 20 V reverse voltage rating, fast recovery speed classification, and DO-219AB package footprint. Product status is Active with full RoHS3 and MSL 1 compliance. This substitute is suitable for applications requiring improved thermal performance or lower power dissipation within the same mechanical and electrical envelope. The eSMP® series designation indicates Vishay's optimized surface mount package design.

Selection between these substitutes depends on supply availability, design timeline constraints, and performance optimization requirements. All three parts are mechanically and electrically compatible within the specified parameter ranges.

Frequently Asked Questions (FAQ)

Q: Can the SS12L (Parametric Equivalent) be used as a direct replacement for the SS12L RQG?

A: Yes. The SS12L parametric equivalent shares identical electrical specifications (20 V, 1 A, 450 mV forward voltage, fast recovery speed) and package designation (DO-219AB Sub SMA). The primary difference is product status classification as "Not For New Designs." Direct PCB footprint compatibility is confirmed. Compliance certifications are equivalent (RoHS3, MSL 1).

Q: What is the significance of the "Not For New Designs" status on the SS12L substitute?

A: This classification indicates the part is in mature or declining production phase and is not recommended for incorporation into new circuit designs. The part remains available and fully functional but may face future supply discontinuation. Use this substitute only when the main part (SS12L RQG) is unavailable and design constraints permit use of legacy-status components.

Q: Is the SL02-GS08 (Vishay) a pin-for-pin replacement?

A: Yes. The SL02-GS08 uses the identical DO-219AB package footprint as the SS12L RQG. Pin configuration and PCB land pattern are compatible. The part is a direct mechanical and electrical substitute within the specified parameter ranges.

Q: What are the performance advantages of the SL02-GS08 over the main part?

A: The SL02-GS08 provides three measurable improvements: (1) 10% higher average rectified current rating (1.1 A vs. 1 A), (2) lower forward voltage drop (420 mV vs. 450 mV at rated current), and (3) lower reverse leakage current (250 µA vs. 400 µA at 20 V). These characteristics result in reduced power dissipation and improved thermal performance in the same package.

Q: Are all three parts suitable for high-temperature applications?

A: All three parts support operating junction temperatures from -55°C to 125°C (or maximum 125°C for the SL02-GS08). Selection for high-temperature applications depends on circuit design margins and thermal management. The SL02-GS08's lower forward voltage drop provides a thermal advantage in power-dissipation-sensitive designs.

Q: Do packaging format differences (bulk vs. Tape & Reel) affect electrical performance?

A: No. Packaging format (bulk or Tape & Reel) does not affect electrical performance or component specifications. Format selection is determined by manufacturing process requirements, inventory management, and assembly equipment compatibility. All three parts are electrically identical within their respective parameter specifications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All three parts (SS12L RQG, SS12L, and SL02-GS08) carry RoHS3 Compliant certification and MSL 1 (Unlimited) moisture sensitivity rating. REACH status is "Unaffected" for all parts.

Q: Can the SL02-GS08 be used in applications originally designed for the SS12L RQG without circuit modification?

A: Yes. The SL02-GS08 is electrically and mechanically compatible with the SS12L RQG within the specified parameter ranges. The improved electrical characteristics (higher current rating, lower forward voltage, lower leakage) make it a suitable direct substitute. No circuit modifications are required.