SS23LHRUG Equivalent & Substitute Parts

Part Overview

The SS23LHRUG is an active Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 30 V DC reverse voltage and 2 A average rectified current in a Sub SMA surface mount package. This component is designed for fast recovery applications with forward voltage of 500 mV at 2 A and qualifies under AEC-Q101 automotive standards. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity while maintaining electrical and mechanical compatibility within specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 2 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	400	µA @ 30 V
Technology	Schottky	—
Mounting Type	Surface Mount	—
Package / Case	DO-219AB	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitution of the SS23LHRUG is determined by equivalence in the following critical parameters:

Electrical Compatibility Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 30 V
Technology: Must be Schottky diode type
Speed: Must support Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Average Rectified (Io): Must support minimum 2 A operation or lower current ratings in applications with reduced current requirements

Mechanical Compatibility Criteria:

Package / Case: Must be DO-219AB (Sub SMA equivalent packages)
Mounting Type: Must be Surface Mount

Compliance & Environmental Criteria:

RoHS Status: Must be ROHS3 Compliant
Moisture Sensitivity Level (MSL): Must be rated 1 (Unlimited) or equivalent

The substitute part SL03-GS18 meets the voltage, technology, speed, and package requirements. Current rating differences are noted in the parameter comparison table below.

Parameter Comparison

Parameter	SS23LHRUG (Main Part)	SL03-GS18 (Substitute)	Notes
Manufacturer	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	Different manufacturers
Voltage - DC Reverse (Vr) (Max)	30 V	30 V	Equivalent
Current - Average Rectified (Io)	2 A	1.1 A	Substitute rated lower; suitable for applications ≤ 1.1 A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 2 A	430 mV @ 1.1 A	Lower forward voltage at rated current
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Equivalent
Reverse Recovery Time (trr)	Not specified	10 ns	Substitute provides specified value
Current - Reverse Leakage @ Vr	400 µA @ 30 V	130 µA @ 30 V	Substitute exhibits lower leakage
Package / Case	DO-219AB (Sub SMA)	DO-219AB (SMF)	Equivalent package designation
Operating Temperature - Junction	-55 to 150°C	125°C (Max)	Main part supports wider temperature range
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent
Product Status	Active	Active	Both actively manufactured

Engineering Selection Recommendations

Primary Selection (SS23LHRUG): Use the SS23LHRUG for applications requiring the full 2 A current rating and extended operating temperature range (-55 to 150°C). This part maintains active product status and AEC-Q101 automotive qualification.

Substitute Selection (SL03-GS18): The SL03-GS18 is suitable as a substitute in applications where:

Average rectified current does not exceed 1.1 A
Operating temperature range of -55 to 125°C is acceptable
Lower forward voltage (430 mV @ 1.1 A) and reverse leakage (130 µA @ 30 V) provide performance benefits

Both parts are ROHS3 compliant, maintain MSL 1 rating, and support fast recovery Schottky operation in DO-219AB packages. Selection between these parts depends on circuit current requirements and thermal operating conditions.

Frequently Asked Questions (FAQ)

Q: Can SL03-GS18 replace SS23LHRUG in all applications?

A: No. The SL03-GS18 is rated for 1.1 A average rectified current, while the SS23LHRUG is rated for 2 A. Substitution is valid only in circuits where the actual operating current does not exceed 1.1 A. Verify circuit current requirements before substitution.

Q: What is the difference in forward voltage between these parts?

A: The SS23LHRUG exhibits 500 mV forward voltage at 2 A, while the SL03-GS18 exhibits 430 mV at its rated 1.1 A. Forward voltage comparisons are valid only at their respective rated currents. At equivalent current levels below 1.1 A, forward voltage characteristics differ.

Q: Are both parts qualified for automotive applications?

A: The SS23LHRUG carries AEC-Q101 automotive qualification. The SL03-GS18 does not list AEC-Q101 qualification in the provided specifications. Automotive applications requiring AEC-Q101 certification must use the SS23LHRUG.

Q: What is the temperature operating range difference?

A: The SS23LHRUG operates from -55°C to 150°C junction temperature. The SL03-GS18 maximum junction temperature is 125°C. Applications requiring operation above 125°C must use the SS23LHRUG.

Q: Are the packages physically identical?

A: Both parts use DO-219AB package designation. The SS23LHRUG is specified as Sub SMA, while the SL03-GS18 is specified as DO-219AB (SMF). These designations refer to the same physical package form factor suitable for surface mount assembly.

Q: What is the reverse leakage current difference?

A: The SS23LHRUG exhibits 400 µA reverse leakage at 30 V, while the SL03-GS18 exhibits 130 µA at 30 V. The SL03-GS18 demonstrates lower leakage characteristics, which may provide benefits in low-power or high-impedance circuit applications.

Q: Are both parts RoHS compliant?

A: Yes. Both the SS23LHRUG and SL03-GS18 are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, suitable for standard PCB assembly and storage conditions.

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