SS23L R3G Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS23L R3G is a 30V, 2A Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation in Sub SMA surface mount packaging. This component is classified as Active product status and is ROHS3 compliant. The SS23L R3G operates across a junction temperature range of -55°C to 150°C with fast recovery characteristics suitable for high-frequency switching applications. Equivalent and substitute parts are identified based on matching voltage ratings, current capacity, package compatibility, and electrical performance specifications to ensure functional interchangeability in circuit designs.

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
Package / Case	DO-219AB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the SS23L R3G are grouped based on the following critical parameters that determine functional interchangeability:

Primary Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 30V
Package / Case: DO-219AB (Sub SMA / SMF)
Mounting Type: Surface Mount
Technology: Schottky
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
RoHS Status: ROHS3 Compliant

Current Rating Categories: Substitutes are organized by average rectified current (Io) capacity. The SS23L R3G operates at 2A, with substitute options available at 1A and 1.1A ratings. Lower current-rated devices (1A, 1.1A) are suitable for applications where the circuit design does not require the full 2A capacity. Higher current applications require the 2A-rated devices.

Automotive Grade Variants: Certain substitute parts carry AEC-Q101 automotive qualification and Automotive grade designation. These variants are functionally equivalent to standard industrial-grade parts but include additional qualification testing and reliability documentation.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Reverse Leakage @ Vr	Package	Temp Range	Grade
SS23L R3G	Taiwan Semiconductor Corporation	30V	2A	500 mV @ 2A	400 µA @ 30V	DO-219AB	-55 to 150°C	Industrial
SS2FL3HM3/H	Vishay General Semiconductor	30V	2A	540 mV @ 2A	200 µA @ 30V	DO-219AB	-55 to 150°C	Automotive (AEC-Q101)
SS2FL3-M3/H	Vishay General Semiconductor	30V	2A	540 mV @ 2A	200 µA @ 30V	DO-219AB	-55 to 150°C	Industrial
SS1FL3HM3/H	Vishay General Semiconductor	30V	1A	480 mV @ 1A	200 µA @ 30V	DO-219AB	-55 to 150°C	Automotive (AEC-Q101)
SS1FL3-M3/H	Vishay General Semiconductor	30V	1A	480 mV @ 1A	200 µA @ 30V	DO-219AB	-55 to 150°C	Industrial
SL03-GS18	Vishay General Semiconductor	30V	1.1A	430 mV @ 1.1A	130 µA @ 30V	DO-219AB	-55 to 125°C	Industrial

Engineering Selection Recommendations

Direct Equivalent (2A Current Rating): The SS2FL3HM3/H and SS2FL3-M3/H are direct current-rated equivalents to the SS23L R3G, both rated at 2A with identical 30V reverse voltage and DO-219AB packaging. Both parts are ROHS3 compliant and Active product status. The SS2FL3HM3/H carries AEC-Q101 automotive qualification for applications requiring automotive-grade reliability documentation. The SS2FL3-M3/H is the industrial-grade variant without automotive qualification.

Lower Current Alternatives (1A Rating): The SS1FL3HM3/H and SS1FL3-M3/H are rated at 1A average rectified current. These parts are suitable for circuit designs where the maximum current requirement does not exceed 1A. Both maintain the 30V voltage rating, DO-219AB package, and -55°C to 150°C operating temperature range. The SS1FL3HM3/H includes AEC-Q101 automotive qualification.

Intermediate Current Alternative (1.1A Rating): The SL03-GS18 is rated at 1.1A and represents an intermediate current option between 1A and 2A ratings. This part operates with a maximum junction temperature of 125°C, which is lower than the SS23L R3G specification of 150°C. The SL03-GS18 is suitable for applications where ambient temperature conditions remain within this reduced thermal envelope.

Compliance and Status: All substitute parts maintain ROHS3 compliance and Active product status, ensuring regulatory alignment and ongoing manufacturer support. Selection between industrial and automotive-grade variants depends on application requirements and documentation standards.

Frequently Asked Questions (FAQ)

Q: Can the SS1FL3-M3/H (1A) be used as a direct replacement for the SS23L R3G (2A)?

A: The SS1FL3-M3/H is functionally compatible in terms of voltage rating (30V), package (DO-219AB), and operating temperature range (-55°C to 150°C). However, the current rating is reduced from 2A to 1A. This substitution is valid only if the circuit design does not require current capacity exceeding 1A. Exceeding the 1A rating will result in device failure.

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

A: Both parts are rated at 2A, 30V with DO-219AB packaging and identical electrical specifications. The SS2FL3HM3/H carries AEC-Q101 automotive qualification and Automotive grade designation, while the SS2FL3-M3/H is industrial grade. Selection depends on whether automotive qualification documentation is required for the application.

Q: Is the SL03-GS18 suitable for high-temperature applications?

A: The SL03-GS18 has a maximum junction temperature rating of 125°C, compared to the SS23L R3G specification of 150°C. Applications requiring operation at junction temperatures between 125°C and 150°C require the SS23L R3G or equivalent 2A-rated parts with the higher temperature specification.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts use DO-219AB (SMF) surface mount packaging, which is mechanically and electrically compatible with the Sub SMA package designation of the SS23L R3G. Packaging variations exist in supplier delivery format (Tape & Reel, Cut Tape, Digi-Reel), but the component package itself remains DO-219AB across all listed substitutes.

Q: What is the significance of the reverse leakage current difference between the SS23L R3G (400 µA) and substitute parts (130-200 µA)?

A: Reverse leakage current is specified at the maximum reverse voltage (30V). Lower reverse leakage values indicate reduced parasitic current flow in reverse bias conditions. The SS23L R3G specifies 400 µA, while Vishay substitutes specify 130-200 µA. Both values are within acceptable ranges for Schottky diode technology. Selection based on leakage current is application-dependent and relates to standby power consumption and circuit performance in reverse bias conditions.

Q: Can automotive-grade parts (AEC-Q101) be used in non-automotive applications?

A: Yes. Automotive-grade parts such as SS2FL3HM3/H and SS1FL3HM3/H meet or exceed industrial-grade specifications and carry additional qualification testing. These parts are fully compatible with non-automotive applications and provide enhanced reliability documentation.

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