SS23L RHG Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS23L RHG is a 30V, 2A Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the DO-219AB (Sub SMA) package. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and regulatory compliance can be maintained across alternative manufacturers and product lines, particularly when the primary part experiences supply constraints or when design requirements necessitate alternative sourcing options.

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°C ~ 150°C	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the SS23L RHG is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

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

Secondary Compatibility Parameters:

Current - Average Rectified (Io): Substitute parts with equal or greater current rating maintain forward compatibility
Voltage - Forward (Vf) (Max) @ If: Variations within the Schottky diode characteristic range are acceptable
Speed: All substitutes maintain Fast Recovery ≤ 500ns specification
Operating Temperature - Junction: Substitute parts with equal or extended temperature range maintain compatibility

The substitute parts listed below satisfy all primary criteria and maintain electrical performance within the specified operating envelope of the SS23L RHG.

Parameter Comparison

Parameter	SS23L RHG	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
Technology	Schottky	Schottky	Schottky	Schottky	Schottky	Schottky
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Current Rating Equivalents (2A Rating):

The SS2FL3-M3/H and SS2FL3HM3/H from Vishay General Semiconductor - Diodes Division provide direct electrical equivalence to the SS23L RHG with identical 2A current ratings and 30V reverse voltage specifications. Both parts maintain the DO-219AB package and Surface Mount configuration. The SS2FL3HM3/H includes AEC-Q101 automotive qualification and is supplied in Tape & Reel packaging. The SS2FL3-M3/H is supplied in Tape & Reel packaging without automotive qualification. Both parts maintain the full -55°C to 150°C operating temperature range.

Lower Current Rating Alternatives (1A Rating):

The SS1FL3-M3/H and SS1FL3HM3/H provide 1A current ratings with identical 30V reverse voltage and DO-219AB package specifications. These parts are suitable for applications where the full 2A capability is not required. The SS1FL3HM3/H includes AEC-Q101 automotive qualification. Both maintain the -55°C to 150°C operating temperature range.

Reduced Current Rating Alternative (1.1A Rating):

The SL03-GS18 from Vishay General Semiconductor - Diodes Division provides a 1.1A current rating with 30V reverse voltage in the DO-219AB package. This part operates at a maximum junction temperature of 125°C, which is lower than the SS23L RHG specification of 150°C. The SL03-GS18 is supplied in Tape & Reel packaging.

All substitute parts maintain ROHS3 compliance and Active product status.

Frequently Asked Questions (FAQ)

Q: Can the SS2FL3-M3/H or SS2FL3HM3/H be used as direct replacements for the SS23L RHG?

A: Yes. Both parts meet all primary substitution criteria: 30V reverse voltage rating, 2A current rating, DO-219AB package, Surface Mount configuration, Schottky technology, and ROHS3 compliance. The SS2FL3HM3/H includes AEC-Q101 automotive qualification, while the SS2FL3-M3/H does not.

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

A: Both parts are electrically identical with 2A current rating and 30V reverse voltage. The primary difference is that SS2FL3HM3/H carries AEC-Q101 automotive qualification and is intended for automotive applications. Both are supplied in Tape & Reel packaging.

Q: Can I use the SS1FL3-M3/H or SS1FL3HM3/H in place of the SS23L RHG?

A: These parts can be used in applications where the circuit does not require the full 2A current capacity. Both maintain 30V reverse voltage, DO-219AB package, and -55°C to 150°C operating temperature range. The SS1FL3HM3/H includes AEC-Q101 automotive qualification.

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

A: The SL03-GS18 meets the 30V reverse voltage and DO-219AB package requirements. However, it provides only 1.1A current rating and operates at a maximum junction temperature of 125°C, compared to the SS23L RHG specification of 150°C. Use this part only in applications where 1.1A current capacity is sufficient and the lower maximum operating temperature is acceptable.

Q: What packaging options are available for the substitute parts?

A: The SS2FL3-M3/H and SS2FL3HM3/H are supplied in Tape & Reel (TR) packaging. The SS1FL3-M3/H is supplied in Cut Tape (CT) & Digi-Reel® packaging. The SS1FL3HM3/H is supplied in Tape & Reel (TR) packaging. The SL03-GS18 is supplied in Tape & Reel (TR) packaging.

Q: Do all substitute parts maintain the same operating temperature range as the SS23L RHG?

A: The SS2FL3-M3/H, SS2FL3HM3/H, SS1FL3-M3/H, and SS1FL3HM3/H all maintain the -55°C to 150°C operating temperature range. The SL03-GS18 operates at a maximum junction temperature of 125°C, which is lower than the SS23L RHG specification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and maintain REACH Unaffected status, consistent with the SS23L RHG.

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