SS36LH Equivalent & Substitute Parts

Part Overview

The SS36LH is a 3A, 60V Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the SOD-123 package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. The part carries automotive-grade qualification (AEC-Q101) and is ROHS3 compliant. Due to its discontinued status, identifying functionally equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design continuity where existing inventory is depleted.

Substiute Parts

SS36LH

Taiwan Semiconductor CorporationIn Stock: 1073SS36LH Datasheet

Current PartRFQ

SS36LWH

Taiwan Semiconductor CorporationIn Stock: 14172SS36LWH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS36LH is determined by electrical and mechanical parameter equivalence within the Schottky rectifier diode category. The critical parameters governing substitution are:

Electrical Parameters:

• Reverse voltage rating (Vr): 60 V maximum
• Average rectified current (Io): 3 A
• Forward voltage drop (Vf): maximum 750 mV at 3 A
• Reverse leakage current: maximum 500 µA at 60 V
• Recovery speed: Fast Recovery ≤ 500ns, > 200mA

Mechanical Parameters:

• Mounting type: Surface Mount
• Package compatibility: SOD-123 or equivalent form factor
• Operating temperature range: -55°C to 150°C

Compliance Parameters:

• Technology: Schottky
• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant

The SS36LWH qualifies as a manufacturer-recommended substitute because it maintains all critical electrical specifications while offering improved performance characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The SS36LWH is the manufacturer-recommended substitute for the SS36LH. Both components share identical electrical ratings for reverse voltage (60 V) and average rectified current (3 A), ensuring functional equivalence in circuit applications. The SS36LWH demonstrates superior performance with a lower forward voltage drop (700 mV versus 750 mV at 3 A) and reduced reverse leakage current (200 µA versus 500 µA at 60 V).

From a compliance and qualification perspective, both parts maintain automotive-grade status with AEC-Q101 qualification and ROHS3 compliance. The critical distinction is product status: the SS36LH is designated "Not For New Designs," while the SS36LWH carries "Active" status, indicating ongoing manufacturer support and availability.

The package transition from SOD-123 to SOD-123W represents a minor form factor variation within the same diode family. Both packages are surface mount configurations with compatible footprints for standard PCB assembly processes. The SOD-123W package offers equivalent electrical performance with the same operating temperature range (-55°C to 150°C).

For applications requiring the SS36LH, the SS36LWH provides direct substitution with enhanced electrical characteristics and assured long-term supply continuity.

Frequently Asked Questions (FAQ)

Q: Can the SS36LWH directly replace the SS36LH in existing designs?

A: Yes. The SS36LWH meets or exceeds all electrical specifications of the SS36LH, including reverse voltage (60 V), average rectified current (3 A), and operating temperature range (-55°C to 150°C). Both components are Schottky rectifier diodes with automotive-grade qualification and AEC-Q101 certification.

Q: What is the difference between the SOD-123 and SOD-123W packages?

A: SOD-123 and SOD-123W are both surface mount diode packages with compatible footprints. The SOD-123W represents a variant within the same package family. Both packages support standard PCB assembly processes and maintain identical electrical performance characteristics.

Q: Does the SS36LWH offer performance improvements over the SS36LH?

A: The SS36LWH exhibits lower forward voltage drop (700 mV versus 750 mV at 3 A) and reduced reverse leakage current (200 µA versus 500 µA at 60 V). These improvements result in lower power dissipation and enhanced circuit efficiency while maintaining all required electrical ratings.

Q: Why is the SS36LH marked "Not For New Designs"?

A: This designation indicates the part has reached end-of-life status. The SS36LWH, with "Active" product status, is the recommended alternative for new designs and ongoing production applications.

Q: Are both parts compliant with automotive and environmental standards?

A: Yes. Both the SS36LH and SS36LWH are automotive-grade components with AEC-Q101 qualification, ROHS3 compliance, and REACH unaffected status, meeting automotive industry requirements for reliability and environmental safety.

Q: What is the reverse leakage current specification, and why does it matter?

A: Reverse leakage current is the small current that flows through a diode when reverse-biased. The SS36LH specifies 500 µA at 60 V, while the SS36LWH specifies 200 µA at 60 V. Lower leakage reduces standby power consumption and improves circuit efficiency, particularly in battery-powered or low-power applications.

Q: Are there any thermal considerations when substituting these parts?

A: Both components operate across the same junction temperature range (-55°C to 150°C). The improved forward voltage characteristics of the SS36LWH result in lower power dissipation, which can reduce thermal stress in high-current applications.