SS19-M3/5AT Equivalent & Substitute Parts

Part Overview

The SS19-M3/5AT is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 90 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (SMA) package. This part is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements. The substitute part SS1H9-M3/5AT provides functional equivalence while maintaining active product status and full compliance with current regulatory standards.

Substiute Parts

SS19-M3/5AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 1134SS19-M3/5AT Datasheet

Current PartRFQ

SS1H9-M3/5AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 792SS1H9-M3/5AT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SS19-M3/5AT with the active SS1H9-M3/5AT is based on electrical and mechanical parameter equivalence. Both components share identical specifications across the following critical parameters:

• Voltage - DC Reverse (Vr) (Max): 90 V
• Current - Average Rectified (Io): 1 A
• Technology: Schottky
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The SS1H9-M3/5AT maintains full electrical and mechanical compatibility with the SS19-M3/5AT while providing active product status, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The SS1H9-M3/5AT is the direct functional equivalent for the obsolete SS19-M3/5AT. Selection of the SS1H9-M3/5AT is based on the following engineering criteria:

Product Status: The SS1H9-M3/5AT maintains active product status with Vishay General Semiconductor - Diodes Division, ensuring continued availability and manufacturing support. The SS19-M3/5AT is classified as obsolete and subject to discontinuation.

Regulatory Compliance: Both components are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Electrical Equivalence: Identical voltage and current ratings (90 V, 1 A) with matching Schottky technology and fast recovery speed characteristics ensure direct functional replacement in circuit applications.

Mechanical Compatibility: Both components utilize the DO-214AC (SMA) surface mount package with identical mounting type and moisture sensitivity classification, enabling direct PCB layout compatibility without design modification.

Supply Chain Continuity: Current inventory of 700 pieces for the SS1H9-M3/5AT supports production requirements, whereas the SS19-M3/5AT inventory is subject to depletion without replenishment.

Frequently Asked Questions (FAQ)

Q: Can the SS1H9-M3/5AT be used as a direct replacement for the SS19-M3/5AT without PCB modification?

A: Yes. Both components share identical package specifications (DO-214AC, SMA) and mounting type (surface mount). No PCB layout changes are required for substitution.

Q: What are the key electrical parameters that define substitution compatibility?

A: Voltage - DC Reverse (Vr) (Max) of 90 V, Current - Average Rectified (Io) of 1 A, Schottky technology, and fast recovery speed (≤ 500ns, > 200mA) are the primary parameters determining substitution eligibility. Both components match across all these specifications.

Q: Are there regulatory or compliance differences between the two parts?

A: No. Both the SS19-M3/5AT and SS1H9-M3/5AT are ROHS3 compliant with MSL rating of 1 (Unlimited) and REACH unaffected status. Compliance requirements are identical.

Q: Why is the SS19-M3/5AT classified as obsolete?

A: The SS19-M3/5AT is designated obsolete by Vishay General Semiconductor - Diodes Division. The SS1H9-M3/5AT provides equivalent functionality with active product status and ongoing manufacturing support.

Q: What is the difference in forward voltage specification between the two parts?

A: The SS1H9-M3/5AT specifies a maximum forward voltage (Vf) of 860 mV at 2 A. The SS19-M3/5AT does not provide this specification in available documentation. This additional specification for the SS1H9-M3/5AT does not affect substitution compatibility.

Q: Are there inventory considerations for component selection?

A: The SS1H9-M3/5AT has 700 pieces in current stock with active product status. The SS19-M3/5AT has 1030 pieces in stock but is obsolete. For new designs and ongoing production, the SS1H9-M3/5AT is the recommended selection to ensure long-term supply availability.