SS23L RUG Equivalent & Substitute Parts

Part Overview

The SS23L RUG is a 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 classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified based on matching or compatible electrical ratings, package compatibility, and thermal operating ranges to support design flexibility and supply chain continuity for Schottky diode applications.

Key Parameters

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

Substitute Part Grouping Explanation

Substitute parts for the SS23L RUG are qualified based on the following criteria:

Electrical Compatibility: All substitute parts maintain the 30 V DC reverse voltage rating. Current ratings range from 1 A to 2 A, with lower-rated devices (1 A and 1.1 A) suitable for applications where the full 2 A capacity is not required. Forward voltage characteristics remain within acceptable operating ranges for Schottky rectifier applications.

Package Compatibility: All substitute parts use the DO-219AB (SMF) surface mount package, ensuring mechanical and electrical compatibility with the original SS23L RUG footprint.

Thermal Operating Range: Substitute parts maintain the -55°C to 150°C junction temperature range, supporting the same thermal environment as the main part.

Speed Characteristics: All substitute parts maintain fast recovery characteristics (≤ 500ns, > 200mA), preserving switching performance requirements.

Compliance: All substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the main part.

Automotive Grade Options: Two substitute parts (SS1FL3HM3/H and SS2FL3HM3/H) include AEC-Q101 automotive qualification, providing enhanced reliability for automotive applications.

Parameter Comparison

Parameter	SS23L RUG	SL03-GS18	SS1FL3-M3/H	SS1FL3HM3/H	SS2FL3-M3/H	SS2FL3HM3/H
Manufacturer	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Voltage - DC Reverse (Vr) (Max)	30 V	30 V	30 V	30 V	30 V	30 V
Current - Average Rectified (Io)	2 A	1.1 A	1 A	1 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 2 A	430 mV @ 1.1 A	480 mV @ 1 A	480 mV @ 1 A	540 mV @ 2 A	540 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	400 µA @ 30 V	130 µA @ 30 V	200 µA @ 30 V	200 µA @ 30 V	200 µA @ 30 V	200 µA @ 30 V
Package / Case	DO-219AB	DO-219AB	DO-219AB	DO-219AB	DO-219AB	DO-219AB
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55°C ~ 150°C	125°C (Max)	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Grade	Not specified	Not specified	Not specified	AEC-Q101	Not specified	AEC-Q101

Engineering Selection Recommendations

Direct Replacement (2 A Current Rating): SS2FL3-M3/H and SS2FL3HM3/H are direct electrical equivalents to the SS23L RUG, both rated for 2 A average rectified current at 30 V reverse voltage. Both parts maintain the full operating temperature range of -55°C to 150°C. SS2FL3HM3/H includes AEC-Q101 automotive qualification for applications requiring automotive-grade reliability.

Reduced Current Applications (1 A Rating): SS1FL3-M3/H and SS1FL3HM3/H are suitable for applications where 1 A current capacity is sufficient. These parts maintain the same 30 V voltage rating and full temperature range. SS1FL3HM3/H includes AEC-Q101 automotive qualification.

Intermediate Current Rating (1.1 A): SL03-GS18 provides an intermediate current rating of 1.1 A at 30 V. This part exhibits lower reverse leakage current (130 µA) compared to the main part (400 µA). The maximum junction temperature is specified as 125°C, which is lower than the -55°C to 150°C range of the main part.

Compliance Considerations: All substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the SS23L RUG. Automotive applications requiring AEC-Q101 qualification should select SS1FL3HM3/H or SS2FL3HM3/H.

Frequently Asked Questions (FAQ)

Q: Can SS1FL3-M3/H or SS1FL3HM3/H be used as direct replacements for SS23L RUG?

A: These 1 A rated parts are suitable for applications where the circuit design does not require the full 2 A capacity of the SS23L RUG. Both maintain the 30 V voltage rating, DO-219AB package compatibility, and -55°C to 150°C operating temperature range. Circuit current requirements must be evaluated to confirm suitability.

Q: What is the difference between SS2FL3-M3/H and SS2FL3HM3/H?

A: Both parts are rated for 2 A at 30 V with identical electrical characteristics and the DO-219AB package. SS2FL3HM3/H includes AEC-Q101 automotive qualification, making it suitable for automotive applications. Both maintain the -55°C to 150°C operating temperature range.

Q: Is SL03-GS18 a suitable substitute for the SS23L RUG?

A: SL03-GS18 is rated for 1.1 A at 30 V, which is lower than the 2 A rating of the SS23L RUG. This part is suitable for applications where 1.1 A capacity is sufficient. The maximum junction temperature is specified as 125°C, which is lower than the -55°C to 150°C range of the main part. Applications operating at temperatures above 125°C require alternative selections.

Q: Are all substitute parts in the same DO-219AB package?

A: Yes, all substitute parts use the DO-219AB (SMF) surface mount package, ensuring mechanical and electrical compatibility with the SS23L RUG footprint and PCB layout.

Q: Which substitute part has the lowest reverse leakage current?

A: SL03-GS18 has the lowest reverse leakage current at 130 µA @ 30 V, compared to 400 µA @ 30 V for the SS23L RUG and 200 µA @ 30 V for the Vishay SS1FL3 and SS2FL3 series parts.

Q: What is the difference in forward voltage between the main part and substitute parts?

A: The SS23L RUG has a forward voltage of 500 mV @ 2 A. SS2FL3-M3/H and SS2FL3HM3/H (2 A rated) have 540 mV @ 2 A. SS1FL3-M3/H and SS1FL3HM3/H (1 A rated) have 480 mV @ 1 A. SL03-GS18 (1.1 A rated) has 430 mV @ 1.1 A. Forward voltage differences must be evaluated for applications sensitive to voltage drop characteristics.

Q: Do all substitute parts support the full -55°C to 150°C temperature range?

A: SS1FL3-M3/H, SS1FL3HM3/H, SS2FL3-M3/H, and SS2FL3HM3/H all support -55°C to 150°C. SL03-GS18 has a maximum junction temperature of 125°C, which is lower than the main part's upper limit of 150°C.

Q: Which substitute parts are suitable for automotive applications?

A: SS1FL3HM3/H and SS2FL3HM3/H include AEC-Q101 automotive qualification. These parts are suitable for automotive-grade applications requiring enhanced reliability and qualification standards.

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