SS36FA Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS36FA is a 60V, 3A Schottky rectifier diode manufactured by onsemi in SOD-123FA surface mount packaging. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. The diode is qualified to AEC-Q101 automotive standards and features fast recovery characteristics suitable for high-frequency switching applications. Due to its discontinued design status, equivalent substitute parts with matching electrical specifications and compatible packaging are necessary for ongoing production support and design continuity.

Substiute Parts

SS36FA

onsemiIn Stock: 23394SS36FA Datasheet

Current PartRFQ

PMEG60T30ELRX

Nexperia USA Inc.In Stock: 14762PMEG60T30ELRX Datasheet

SimilarRFQ

V3F6-M3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 8005V3F6-M3/H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SS36FA is determined by strict equivalence across the following electrical and mechanical parameters:

Mandatory Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 60 V
• Current - Average Rectified (Io): 3 A
• Technology: Schottky
• Mounting Type: Surface Mount
• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant

Acceptable Variation Parameters:

• Voltage - Forward (Vf) (Max) @ If: Forward voltage may vary within typical Schottky diode performance ranges
• Package / Case: Surface mount packages SOD-123W and DO-219AB are mechanically compatible with appropriate PCB layout modifications
• Current - Reverse Leakage @ Vr: Leakage current specifications may differ while maintaining automotive-grade performance
• Capacitance @ Vr, F: Junction capacitance variations are acceptable for rectification applications

The identified substitute parts PMEG60T30ELRX and V3F6-M3/H meet all mandatory matching criteria and are qualified for direct functional replacement in automotive applications.

Parameter Comparison

Engineering Selection Recommendations

PMEG60T30ELRX (Nexperia USA Inc.)

This substitute part is manufactured by Nexperia and carries Active product status, ensuring long-term availability and supply chain continuity. The PMEG60T30ELRX is packaged in SOD-123W, identical to the SS36FA supplier device package, enabling direct PCB footprint compatibility without layout modifications. Both parts are AEC-Q101 qualified and ROHS3 compliant. The forward voltage specification of 620 mV at 3 A is lower than the SS36FA at 750 mV, resulting in reduced power dissipation. Reverse leakage current is significantly lower at 1.8 µA compared to 500 µA, indicating superior leakage performance. This part is suitable for applications where improved thermal efficiency and lower leakage are beneficial.

V3F6-M3/H (Vishay General Semiconductor - Diodes Division)

This substitute part is manufactured by Vishay and carries Active product status. The V3F6-M3/H is packaged in DO-219AB (SMF), which differs from the SS36FA SOD-123W package. PCB layout modifications are required to accommodate the different footprint. Both parts are AEC-Q101 qualified and ROHS3 compliant. The forward voltage specification of 620 mV at 3 A matches the PMEG60T30ELRX and is lower than the SS36FA. Reverse leakage current at 600 µA is comparable to the original SS36FA specification. This part is suitable for applications where package footprint changes are acceptable and Vishay component standardization is preferred.

Frequently Asked Questions (FAQ)

Q: Can the PMEG60T30ELRX be used as a direct replacement for the SS36FA without PCB modifications?

A: Yes. Both parts use the SOD-123W surface mount package, providing identical PCB footprints and pinouts. No layout modifications are required for this substitution.

Q: Can the V3F6-M3/H be used as a direct replacement for the SS36FA without PCB modifications?

A: No. The V3F6-M3/H uses the DO-219AB package while the SS36FA uses SOD-123W. These packages have different footprints and require PCB layout modifications to accommodate the alternative package geometry.

Q: What is the significance of the lower forward voltage in the substitute parts?

A: The PMEG60T30ELRX and V3F6-M3/H both specify 620 mV forward voltage at 3 A, compared to 750 mV for the SS36FA. Lower forward voltage reduces power dissipation in the diode, resulting in lower junction temperatures and improved thermal performance in the application circuit.

Q: Are both substitute parts qualified to the same automotive standards as the SS36FA?

A: Yes. Both PMEG60T30ELRX and V3F6-M3/H are AEC-Q101 qualified and ROHS3 compliant, matching the automotive-grade specifications of the SS36FA.

Q: Why is the SS36FA marked as "Not For New Designs"?

A: This designation indicates the part has reached end-of-life status and is no longer recommended for new product development. Existing inventory remains available for legacy product support, but new designs should utilize the active substitute parts PMEG60T30ELRX or V3F6-M3/H.

Q: What is the difference in reverse leakage current between the parts?

A: The SS36FA specifies 500 µA reverse leakage at 60 V. The PMEG60T30ELRX specifies 1.8 µA, representing significantly lower leakage. The V3F6-M3/H specifies 600 µA, comparable to the original part. Lower leakage current reduces standby power consumption in the application circuit.

Q: Are there any temperature range differences between the substitute parts and the original?

A: The SS36FA operates from -55°C to 150°C junction temperature. The PMEG60T30ELRX specifies a maximum junction temperature of 175°C, providing higher temperature capability. The V3F6-M3/H operates from -40°C to 150°C, with a narrower lower temperature limit compared to the SS36FA.