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SS12L RFG Schottky Diode Equivalent & Substitute Parts
Part Overview
The SS12L RFG is a surface mount Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 20 V DC reverse voltage and 1 A average rectified current. This component is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1). The SS12L RFG is packaged in DO-219AB (Sub SMA) configuration for surface mount applications requiring fast recovery characteristics in low-voltage rectification circuits.
Equivalent and substitute parts are identified to support component procurement flexibility, inventory management, and design continuity when the primary part number becomes unavailable or when alternative sourcing is required.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) Maximum | 20 | V |
| Current - Average Rectified (Io) | 1 | A |
| Voltage - Forward (Vf) Maximum @ If | 450 mV @ 1 A | mV |
| Speed Classification | Fast Recovery ≤ 500ns, > 200mA (Io) | ns |
| Current - Reverse Leakage @ Vr | 400 | µA @ 20 V |
| Package / Case | DO-219AB | — |
| Mounting Type | Surface Mount | — |
| Operating Temperature - Junction | -55 to 125 | °C |
| Technology | Schottky | — |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitution eligibility for the SS12L RFG is determined by the following critical parameters:
Mandatory Matching Parameters:
- Voltage - DC Reverse (Vr) Maximum: 20 V
- Package / Case: DO-219AB
- Mounting Type: Surface Mount
- Technology: Schottky
- RoHS Status: ROHS3 Compliant
Allowable Variation Parameters:
- Current - Average Rectified (Io): Equal to or greater than 1 A
- Voltage - Forward (Vf) Maximum: Equal to or less than 450 mV @ rated current
- Current - Reverse Leakage @ Vr: Equal to or less than 400 µA @ 20 V
- Operating Temperature - Junction: Must encompass -55°C to 125°C range
Substitute parts identified in this reference meet all mandatory matching parameters and operate within allowable variation limits for the specified electrical characteristics.
Parameter Comparison
| Parameter | SS12L RFG (Main) | SS12L (Parametric Equivalent) | SL02-GS08 (Similar) |
|---|---|---|---|
| Manufacturer | Taiwan Semiconductor Corporation | Taiwan Semiconductor Corporation | Vishay General Semiconductor - Diodes Division |
| Voltage - DC Reverse (Vr) Maximum | 20 V | 20 V | 20 V |
| Current - Average Rectified (Io) | 1 A | 1 A | 1.1 A |
| Voltage - Forward (Vf) Maximum @ If | 450 mV @ 1 A | 450 mV @ 1 A | 420 mV @ 1.1 A |
| Speed Classification | Fast Recovery ≤ 500ns, > 200mA (Io) | Fast Recovery ≤ 500ns, > 200mA (Io) | Fast Recovery ≤ 500ns, > 200mA (Io) |
| Current - Reverse Leakage @ Vr | 400 µA @ 20 V | 400 µA @ 20 V | 250 µA @ 20 V |
| Package / Case | DO-219AB | DO-219AB | DO-219AB |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature - Junction | -55°C to 125°C | -55°C to 125°C | 125°C (Max) |
| Technology | Schottky | Schottky | Schottky |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Active | Not For New Designs | Active |
Engineering Selection Recommendations
SS12L (Parametric Equivalent): This part is a direct parametric equivalent to the SS12L RFG, manufactured by Taiwan Semiconductor Corporation with identical electrical specifications. The part is classified as "Not For New Designs," indicating it is suitable for replacement and maintenance applications but not recommended for new product development. This part is available in Tape & Reel (TR) packaging format.
SL02-GS08 (Similar Manufacturer Part): This Vishay General Semiconductor diode is an active product offering improved electrical performance characteristics within the same package and voltage class. The SL02-GS08 provides higher average rectified current (1.1 A versus 1 A), lower forward voltage drop (420 mV @ 1.1 A versus 450 mV @ 1 A), and lower reverse leakage current (250 µA @ 20 V versus 400 µA @ 20 V). The SL02-GS08 is part of the eSMP® series and maintains ROHS3 compliance. Operating temperature maximum is specified at 125°C without explicit minimum temperature rating in the provided data.
Both substitute parts maintain DO-219AB package compatibility, surface mount configuration, Schottky technology classification, and RoHS3 compliance status with the main part SS12L RFG.
Frequently Asked Questions (FAQ)
Q: Can the SS12L (Parametric Equivalent) be used as a direct replacement for SS12L RFG?
A: Yes. The SS12L parametric equivalent matches all critical electrical parameters: 20 V reverse voltage rating, 1 A average rectified current, 450 mV forward voltage drop @ 1 A, fast recovery speed classification, and identical package configuration (DO-219AB). The primary difference is product status classification ("Not For New Designs") and packaging format (Tape & Reel versus the main part's unspecified packaging). Both are manufactured by Taiwan Semiconductor Corporation and are ROHS3 compliant.
Q: Is the SL02-GS08 compatible with SS12L RFG applications?
A: The SL02-GS08 is electrically compatible for applications where the SS12L RFG is specified. Both devices share identical 20 V reverse voltage rating, DO-219AB package configuration, surface mount mounting type, and fast recovery speed classification. The SL02-GS08 offers superior performance with higher current rating (1.1 A), lower forward voltage (420 mV @ 1.1 A), and lower reverse leakage (250 µA @ 20 V). The SL02-GS08 is manufactured by Vishay General Semiconductor and maintains ROHS3 compliance.
Q: What are the key differences between these substitute parts?
A: The SS12L parametric equivalent is electrically identical to the main part but carries "Not For New Designs" status. The SL02-GS08 offers improved electrical performance (higher current capacity, lower forward voltage, lower leakage) and is from a different manufacturer (Vishay versus Taiwan Semiconductor Corporation). All three parts share the same 20 V voltage rating, DO-219AB package, and Schottky technology classification.
Q: Are all substitute parts available in the same packaging formats?
A: The SS12L RFG main part does not specify packaging format in the provided data. The SS12L parametric equivalent is available in Tape & Reel (TR) format. The SL02-GS08 is available in Tape & Reel (TR) format with supplier device package designation DO-219AB (SMF). Packaging format compatibility should be verified against specific assembly requirements.
Q: Do these parts meet the same compliance standards?
A: Yes. All three parts—SS12L RFG, SS12L parametric equivalent, and SL02-GS08—are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. All parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.
Q: What is the operating temperature range for each part?
A: The SS12L RFG and SS12L parametric equivalent both specify operating junction temperature range of -55°C to 125°C. The SL02-GS08 specifies maximum operating junction temperature of 125°C without explicit minimum temperature rating in the provided data. Applications requiring full -55°C to 125°C range should verify SL02-GS08 minimum temperature capability with the manufacturer.
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