SS23LHRHG Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS23LHRHG is an active Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 30V DC reverse voltage with 2A average rectified current. This component is designed for surface mount applications in the Sub SMA package configuration and meets automotive-grade specifications under AEC-Q101 qualification. The part is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified to provide alternative sourcing options when the primary part number becomes unavailable or when inventory constraints require component alternatives that maintain equivalent electrical and mechanical performance within specified parameters.

Substiute Parts

SS23LHRHG

Taiwan Semiconductor CorporationIn Stock: 1072SS23LHRHG Datasheet

Current PartRFQ

SL03-GS18

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS23LHRHG is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 30V
• Package / Case: DO-219AB
• Mounting Type: Surface Mount
• Technology: Schottky
• RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

• Current - Average Rectified (Io): Substitute must equal or exceed 2A rating
• Voltage - Forward (Vf) (Max) @ If: Substitute must not exceed 500 mV @ rated current
• Current - Reverse Leakage @ Vr: Substitute must not exceed 400 µA @ 30V
• Operating Temperature - Junction: Substitute must support minimum -55°C to 150°C range

The substitute part SL03-GS18 meets the mandatory matching parameters. However, the Current - Average Rectified (Io) rating of 1.1A is below the 2A requirement of the main part, indicating this substitute is suitable only for applications where the actual circuit current demand does not exceed 1.1A.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: SS23LHRHG

The SS23LHRHG is the specified component for applications requiring 2A average rectified current at 30V reverse voltage. This part maintains active product status with automotive-grade AEC-Q101 qualification, ROHS3 compliance, and unlimited moisture sensitivity rating. The operating temperature range of -55°C to 150°C supports extended thermal environments.

Substitute Part: SL03-GS18

The SL03-GS18 from Vishay General Semiconductor maintains equivalent reverse voltage (30V), package configuration (DO-219AB), and fast recovery speed characteristics. This substitute is ROHS3 compliant with REACH unaffected status and unlimited MSL rating.

Critical Limitation: The SL03-GS18 is rated for 1.1A average rectified current, which is 45% below the 2A specification of the SS23LHRHG. This substitute is applicable only in circuit designs where the actual operating current does not exceed 1.1A. The maximum junction temperature of 125°C is also 25°C lower than the main part specification.

Compliance Equivalence: Both parts maintain ROHS3 compliance, REACH unaffected status, and automotive-grade qualification standards, ensuring regulatory and environmental requirement alignment.

Frequently Asked Questions (FAQ)

Q: Can the SL03-GS18 directly replace the SS23LHRHG in all applications?

A: No. The SL03-GS18 is rated for 1.1A average rectified current compared to the SS23LHRHG's 2A rating. Direct substitution is limited to applications where circuit current demand does not exceed 1.1A. The maximum junction temperature is also reduced from 150°C to 125°C.

Q: Are both parts compatible with the same PCB footprint?

A: Yes. Both parts use the DO-219AB package configuration with surface mount mounting type, ensuring mechanical and footprint compatibility on printed circuit boards designed for this package.

Q: Do both parts meet automotive qualification requirements?

A: The SS23LHRHG carries AEC-Q101 automotive qualification. The SL03-GS18 specifications provided do not explicitly state AEC-Q101 qualification status. Automotive application requirements must be verified against the substitute part's qualification documentation.

Q: What is the difference in forward voltage characteristics?

A: The SS23LHRHG specifies 500 mV maximum forward voltage at 2A. The SL03-GS18 specifies 430 mV maximum forward voltage at 1.1A. The lower forward voltage of the substitute may reduce power dissipation in current-limited applications.

Q: Are there environmental compliance differences between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. Both maintain unlimited moisture sensitivity level (MSL 1). Environmental compliance status is equivalent.

Q: What is the reverse leakage current difference?

A: The SS23LHRHG specifies 400 µA maximum reverse leakage at 30V. The SL03-GS18 specifies 130 µA maximum reverse leakage at 30V. The substitute exhibits lower reverse leakage, which may improve circuit performance in applications sensitive to leakage current.

Q: Can the SL03-GS18 be used in high-temperature applications?

A: The SL03-GS18 maximum junction temperature is 125°C, compared to 150°C for the SS23LHRHG. Applications requiring sustained operation above 125°C require the primary part or alternative components with higher temperature ratings.