SS19L Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS19L is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the Sub SMA package format. This component operates at 90 V DC reverse voltage with 1 A average rectified current capacity and features fast recovery characteristics suitable for high-frequency switching applications.

The SS19L is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. Alternative equivalent parts are necessary when the primary part becomes unavailable or when design requirements mandate specific packaging configurations or supplier sourcing options.

Substiute Parts

SS19L MTG

Taiwan Semiconductor CorporationIn Stock: 935SS19L MTG 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 critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) Maximum: 90 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) Maximum @ If: 800 mV @ 1 A
• Speed - Fast Recovery: ≤ 500 ns, > 200 mA (Io)
• Current - Reverse Leakage @ Vr: 50 µA @ 90 V

Mechanical Equivalence Criteria:

• Mounting Type: Surface Mount
• Package / Case: DO-219AB (Sub SMA)
• Operating Temperature - Junction: -55°C to 150°C

Compliance Equivalence Criteria:

• Technology: Schottky
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts must match all electrical parameters, mechanical package specifications, and compliance certifications to ensure direct interchangeability in circuit applications without design modification.

Parameter Comparison

Engineering Selection Recommendations

The SS19L substitute part maintains complete electrical and mechanical equivalence with the main part number. Both variants are manufactured by Taiwan Semiconductor Corporation and share identical specifications across all critical parameters including reverse voltage rating, forward current capacity, forward voltage drop, recovery speed, and reverse leakage current.

Product Status Consideration: The main part (SS19L) carries Active product status, indicating ongoing manufacturing and support. The substitute part (SS19L) is designated Not For New Designs, indicating it remains available for existing applications but is not recommended for new circuit development.

Compliance Status: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for electronic component applications in regulated markets.

Packaging and Sourcing: The substitute part is available in Cut Tape (CT) and Digi-Reel® packaging configurations, providing alternative supply chain options compared to the main part. Both parts utilize the DO-219AB Sub SMA package format, ensuring mechanical and thermal compatibility in surface mount PCB layouts.

Selection between the main part and substitute should be based on product lifecycle requirements, supply chain availability, and packaging format needs rather than electrical performance, as both parts are electrically identical.

Frequently Asked Questions (FAQ)

Q: Can the SS19L substitute part be used in place of the main SS19L part number?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical specifications for reverse voltage (90 V), forward current (1 A), forward voltage drop (800 mV @ 1 A), recovery speed (≤ 500 ns), and reverse leakage current (50 µA @ 90 V). Both use the DO-219AB Sub SMA package and operate across the same temperature range (-55°C to 150°C).

Q: What is the difference between the main part and the substitute part?

A: The primary differences are product status and packaging format. The main part is Active status with standard packaging, while the substitute part is Not For New Designs status and available in Cut Tape (CT) and Digi-Reel® packaging options. Electrical performance and compliance certifications are identical.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts maintain ROHS3 compliance and REACH unaffected status. Moisture sensitivity level is identical at MSL 1 (Unlimited). Both parts carry the same ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

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

A: This designation indicates the substitute part remains available for existing applications and replacement purposes but is not recommended for incorporation into new circuit designs. The main part (Active status) is the preferred choice for new development projects.

Q: Are the package dimensions and thermal characteristics identical?

A: Yes. Both parts use the DO-219AB Sub SMA package format. Operating temperature range is identical at -55°C to 150°C junction temperature. Mechanical compatibility in surface mount PCB layouts is assured.

Q: Can I mix the main part and substitute part in the same production batch?

A: Yes. Since both parts are electrically and mechanically equivalent with identical specifications, they can be used interchangeably within the same circuit application without design modification or performance variation.

Q: What packaging options are available for the substitute part?

A: The substitute part is available in Cut Tape (CT) and Digi-Reel® packaging configurations, providing flexibility for different assembly and supply chain requirements compared to standard packaging options.