SS19L Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS19L is a surface mount Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 90 V DC reverse voltage and 1 A average rectified current. This component is classified as Active product status and is suitable for applications requiring fast recovery characteristics in compact Sub SMA packaging.

The SS19L remains available in inventory; however, identifying equivalent and substitute parts is essential for supply chain continuity, design flexibility, and long-term component sourcing strategies. This reference provides parametric equivalents based on electrical and mechanical compatibility criteria.

Substiute Parts

SS19L MHG

Taiwan Semiconductor CorporationIn Stock: 1064SS19L MHG Datasheet

Current PartRFQ

SS19L

Taiwan Semiconductor CorporationIn Stock: 7640SS19L Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS19L Schottky diode is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 90 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 800 mV @ 1 A
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 50 µA @ 90 V
• Technology: Schottky
• Package / Case: DO-219AB (Sub SMA)
• Mounting Type: Surface Mount
• Operating Temperature - Junction: -55°C to 150°C

All substitute parts listed maintain identical electrical performance and mechanical compatibility with the main part number SS19L. Substitutes are grouped based on packaging format and product status designation.

Parameter Comparison

Engineering Selection Recommendations

For Active Product Status Applications: The SS19L with Active product status designation is the primary selection for new designs and ongoing production. This part maintains full manufacturer support and is recommended for applications requiring long-term component availability and design continuity.

For Legacy or Existing Designs: The SS19L substitute variant, designated as Not For New Designs, is electrically and mechanically identical to the main part. This substitute is suitable for replacement in existing assemblies, repair operations, and legacy system maintenance where component compatibility is required. However, this variant is not recommended for incorporation into new product designs.

Compliance Considerations: Both the main part and substitute maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory compatibility across applications. Moisture Sensitivity Level 1 (Unlimited) indicates no moisture-related handling restrictions during storage or assembly.

Frequently Asked Questions (FAQ)

Q: What is the difference between the SS19L main part and the SS19L substitute? A: The electrical and mechanical specifications are identical. The primary distinction is product status: the main part is designated Active, while the substitute is designated Not For New Designs. Both parts are manufactured by Taiwan Semiconductor Corporation and meet identical performance criteria.

Q: Can the SS19L substitute be used in new product designs? A: The substitute variant carries a Not For New Designs designation. For new product development, the Active status SS19L is the appropriate selection to ensure long-term manufacturer support and component availability.

Q: Are there any differences in packaging between the main part and substitute? A: Both the main part and substitute use identical DO-219AB Sub SMA surface mount packaging. Packaging format compatibility is maintained across all variants.

Q: What are the critical electrical parameters that define substitution compatibility? A: Substitution compatibility is determined by: 90 V DC reverse voltage rating, 1 A average rectified current, 800 mV forward voltage at 1 A, fast recovery characteristics (≤ 500ns), and 50 µA reverse leakage current at 90 V. All substitute parts maintain these specifications.

Q: Is the SS19L RoHS compliant? A: Yes, the SS19L and all listed substitutes are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What is the operating temperature range for the SS19L? A: The junction operating temperature range is -55°C to 150°C for both the main part and all substitutes.

Q: Does the SS19L require special moisture handling? A: No. The Moisture Sensitivity Level (MSL) rating of 1 (Unlimited) indicates no moisture-related handling restrictions during storage, transportation, or assembly operations.