SS23LHRFG Equivalent & Substitute Parts

Part Overview

The SS23LHRFG is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 30V DC reverse voltage and 2A average rectified current in a Sub SMA surface mount package. This component is classified as Active product status with AEC-Q101 automotive qualification and ROHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

SS23LHRFG

Taiwan Semiconductor CorporationIn Stock: 638SS23LHRFG Datasheet

Current PartRFQ

SL03-GS18

Vishay General Semiconductor - Diodes DivisionIn Stock: 25204SL03-GS18 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS23LHRFG is determined by the following critical parameters:

Voltage Rating: The substitute part must maintain a DC reverse voltage rating of 30V or greater to ensure equivalent reverse bias protection.

Current Rating: The substitute part must support the required average rectified current. The SS23LHRFG is rated for 2A; substitute parts with lower current ratings operate within reduced current capacity.

Forward Voltage: Forward voltage drop characteristics must be compatible with circuit design requirements. The SS23LHRFG specifies 500 mV maximum at 2A.

Package and Mounting: Both the main part and substitute must use the DO-219AB package with surface mount technology to ensure mechanical and electrical compatibility with PCB layouts.

Technology Type: Schottky diode technology must be maintained for fast recovery characteristics and low forward voltage performance.

Temperature Range: Operating temperature specifications must support the application environment. The SS23LHRFG operates from -55°C to 150°C junction temperature.

Compliance Standards: RoHS3 compliance and AEC-Q101 automotive qualification status are required for regulated applications.

The SL03-GS18 meets these substitution criteria with equivalent voltage rating, compatible package, matching technology, and compliant certifications, with the exception of reduced current rating (1.1A versus 2A).

Parameter Comparison

Engineering Selection Recommendations

SS23LHRFG Selection: Select the SS23LHRFG when the application requires the full 2A average rectified current capacity. This part maintains Active product status with AEC-Q101 automotive qualification and ROHS3 compliance, suitable for regulated automotive and industrial applications. The extended junction temperature range to 150°C supports high-temperature operating environments.

SL03-GS18 Selection: The SL03-GS18 substitute is suitable for applications where the average rectified current requirement does not exceed 1.1A. This part maintains equivalent voltage rating, package compatibility, and compliance certifications. The SL03-GS18 demonstrates lower forward voltage drop (430 mV at 1.1A versus 500 mV at 2A) and reduced reverse leakage current (130 µA versus 400 µA at 30V). The maximum junction temperature is 125°C, which is lower than the main part. Both parts are Active status with ROHS3 compliance and REACH unaffected status.

Compliance Considerations: Both parts satisfy ROHS3 compliance requirements and REACH unaffected status. The SL03-GS18 does not carry explicit AEC-Q101 qualification in the provided data; applications requiring automotive qualification should confirm this requirement with the manufacturer.

Frequently Asked Questions (FAQ)

Q: Can the SL03-GS18 directly replace the SS23LHRFG in all applications?

A: The SL03-GS18 is a direct mechanical and electrical substitute for applications where the average rectified current does not exceed 1.1A. Both parts use the DO-219AB package and share identical 30V reverse voltage rating. Applications requiring the full 2A current capacity must use the SS23LHRFG or confirm that circuit current demands remain below 1.1A.

Q: What are the key differences between these two diodes?

A: The primary differences are current rating (2A versus 1.1A), forward voltage characteristics (500 mV @ 2A versus 430 mV @ 1.1A), reverse leakage current (400 µA versus 130 µA at 30V), and maximum junction temperature (150°C versus 125°C). Both maintain 30V reverse voltage rating, DO-219AB package, Schottky technology, and fast recovery characteristics.

Q: Are both parts suitable for automotive applications?

A: The SS23LHRFG carries explicit AEC-Q101 automotive qualification. The SL03-GS18 is manufactured by Vishay with Active product status and ROHS3 compliance; however, AEC-Q101 qualification status is not provided in the available data. Automotive applications should confirm qualification requirements with the manufacturer.

Q: What is the significance of the DO-219AB package designation?

A: The DO-219AB package is a surface mount Sub SMA (SMF) package used for both parts. This package designation ensures mechanical compatibility with PCB layouts designed for either component. Both parts are surface mount devices suitable for automated assembly processes.

Q: How do forward voltage characteristics affect circuit performance?

A: Forward voltage drop determines power dissipation and voltage regulation in rectifier circuits. The SL03-GS18 exhibits lower forward voltage (430 mV at 1.1A) compared to the SS23LHRFG (500 mV at 2A), resulting in reduced power loss at equivalent current levels. Circuit design must account for these voltage characteristics in power supply and regulation calculations.

Q: What does the reverse leakage current specification indicate?

A: Reverse leakage current (400 µA for SS23LHRFG, 130 µA for SL03-GS18 at 30V) represents the small current flowing through the diode in reverse bias condition. Lower leakage current indicates better reverse blocking performance. The SL03-GS18 demonstrates superior reverse blocking characteristics in this parameter.

Q: Are there temperature-related limitations for these parts?

A: The SS23LHRFG operates to a maximum junction temperature of 150°C, while the SL03-GS18 is rated to 125°C maximum. Applications operating in high-temperature environments must ensure that the selected part's temperature rating accommodates the thermal conditions. The SS23LHRFG provides a 25°C higher temperature margin.

Q: What does RoHS3 compliance mean for these components?

A: ROHS3 compliance indicates that both parts meet Restriction of Hazardous Substances Directive requirements, restricting the use of specified hazardous materials including lead, cadmium, and mercury. Both the SS23LHRFG and SL03-GS18 are ROHS3 compliant, suitable for regulated markets requiring hazardous substance restrictions.