SS36L Equivalent & Substitute Parts

Part Overview

The SS36L is a 3A, 60V Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, housed in a SOD-123 surface mount package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. The part is ROHS3 compliant and REACH unaffected, with 30,300 pieces currently in stock.

Due to its discontinued design status, identifying equivalent and substitute parts is necessary for ongoing production support, maintenance applications, and design transitions to active alternatives. Substitutes must maintain electrical compatibility while accounting for package and performance variations.

Substiute Parts

SS36L

Taiwan Semiconductor CorporationIn Stock: 30320SS36L Datasheet

Current PartRFQ

SS36LW

Taiwan Semiconductor CorporationIn Stock: 11933SS36LW Datasheet

MFR RecommendedRFQ

SS1FH6-M3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 360489SS1FH6-M3/H Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the SS36L is based on the following critical parameters:

Primary Substitution Criteria:

• Voltage rating (Vr) must equal or exceed 60V
• Current rating (Io) must equal or exceed 3A
• Technology must be Schottky rectifier
• Mounting type must be surface mount
• Operating temperature range must encompass the application requirements

Substitutes are grouped into two categories:

1. Direct Electrical Equivalent (SS36LW): Maintains identical voltage and current ratings (60V, 3A) with improved electrical characteristics and active product status. Package differs (SOD-123W vs. SOD-123) but both are surface mount variants.

2. Partial Electrical Equivalent (SS1FH6-M3/H): Maintains identical voltage rating (60V) but reduced current rating (1A vs. 3A). This part is suitable only for applications requiring ≤1A average rectified current. Package differs significantly (DO-219AB vs. SOD-123).

Parameter Comparison

Engineering Selection Recommendations

SS36LW Selection: The SS36LW is the primary recommended substitute for the SS36L. Both parts share identical electrical ratings (60V, 3A) and operating temperature range (-55 to 150°C). The SS36LW offers improved performance with lower forward voltage (700 mV vs. 750 mV) and significantly reduced reverse leakage current (200 µA vs. 500 µA). The SS36LW maintains active product status, ensuring long-term availability and supply chain stability. Both parts are ROHS3 compliant and REACH unaffected. The package change from SOD-123 to SOD-123W requires PCB layout verification but both are standard surface mount packages with compatible footprint dimensions for most applications.

SS1FH6-M3/H Selection: The SS1FH6-M3/H is suitable only for applications where the average rectified current requirement does not exceed 1A. While it maintains the 60V voltage rating and offers superior reverse leakage characteristics (3 µA), the reduced current capacity makes it unsuitable as a direct replacement for 3A applications. This part is manufactured by Vishay and carries active product status with ROHS3 compliance and REACH unaffected designation. The DO-219AB package differs from SOD-123, requiring significant PCB redesign. Selection of this part is limited to current-derating scenarios or new designs with reduced current requirements.

Frequently Asked Questions (FAQ)

Q: Can SS36LW directly replace SS36L without PCB modification?

A: The SS36LW maintains identical electrical specifications (60V, 3A) and operating temperature range. However, the package changes from SOD-123 to SOD-123W. While both are surface mount packages, PCB footprint verification is required. SOD-123W is slightly larger than SOD-123, and existing SOD-123 pads may require adjustment. Consult PCB layout documentation and component datasheets for precise footprint dimensions before implementation.

Q: Is SS1FH6-M3/H a suitable replacement for all SS36L applications?

A: No. The SS1FH6-M3/H has a maximum average rectified current of 1A, compared to the SS36L's 3A rating. This part is suitable only for applications requiring ≤1A average rectified current. Applications requiring the full 3A capacity must use SS36LW or equivalent 3A-rated alternatives. Additionally, the DO-219AB package differs significantly from SOD-123, requiring PCB redesign.

Q: What are the key electrical differences between SS36L and SS36LW?

A: Both parts maintain identical voltage (60V) and current (3A) ratings. The SS36LW offers improved performance: forward voltage is reduced from 750 mV to 700 mV at 3A, and reverse leakage current is reduced from 500 µA to 200 µA at 60V. These improvements result in lower power dissipation and reduced leakage current in the application circuit.

Q: Are all three parts ROHS3 compliant?

A: Yes. SS36L, SS36LW, and SS1FH6-M3/H are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What is the significance of SS36L being "Not For New Designs"?

A: This designation indicates the SS36L has reached end-of-life status and is no longer recommended for new product designs. While existing inventory (30,300 pieces) supports ongoing production and maintenance, new designs should transition to active alternatives such as SS36LW to ensure long-term supply chain availability and support.

Q: How do operating temperature ranges compare?

A: SS36L and SS36LW both operate from -55 to 150°C. SS1FH6-M3/H extends the upper limit to 175°C, providing additional thermal margin in high-temperature applications. However, this advantage applies only to applications where the 1A current rating is sufficient.

Q: What package considerations apply when substituting these parts?

A: SS36L uses SOD-123 package; SS36LW uses SOD-123W (slightly larger); SS1FH6-M3/H uses DO-219AB (significantly larger). Package changes require PCB footprint verification and potential layout modifications. Consult component datasheets for precise dimensions, lead spacing, and solder pad requirements before PCB design or modification.