SS26L RTG Equivalent & Substitute Parts

Part Overview

The SS26L RTG is an active Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the Sub SMA package format. This component operates at 60 V DC reverse voltage with a 2 A average rectified current rating and features fast recovery characteristics suitable for high-frequency switching applications. The part is ROHS3 compliant and maintains unlimited moisture sensitivity classification.

Equivalent and substitute parts are identified to provide design flexibility, support supply chain continuity, and accommodate specific application requirements such as automotive qualification or alternative packaging formats.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	60	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	700	mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	400	µA @ 60 V
Mounting Type	Surface Mount	—
Package / Case	DO-219AB	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the SS26L RTG are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalent (Direct Substitution): The SS26L RVG maintains identical electrical specifications and package format. Substitution is based on matching voltage rating (60 V), current rating (2 A), forward voltage drop (700 mV @ 2 A), reverse leakage current (400 µA @ 60 V), and package type (DO-219AB Sub SMA). The only difference is packaging format (Cut Tape versus standard packaging).

Similar Parts (Current-Reduced Alternatives): The SS1FH6-M3/H and SS1FH6HM3/H are rated for 1 A average rectified current, representing a 50% reduction from the main part specification. These parts maintain the same 60 V reverse voltage rating, fast recovery speed, and DO-219AB package format. The SS1FH6HM3/H includes automotive qualification (AEC-Q101) and extended junction temperature range (-55 to 175°C).

The SS2FH6HM3/H matches the 2 A current rating of the main part while providing automotive qualification (AEC-Q101), extended temperature range (-55 to 175°C), and improved reverse leakage characteristics (3 µA @ 60 V versus 400 µA @ 60 V). Forward voltage is specified at 780 mV @ 2 A.

Substitution logic is based on the following key parameters: voltage rating, current rating, package type, and compliance certifications.

Parameter Comparison

Parameter	SS26L RTG	SS26L RVG	SS1FH6-M3/H	SS1FH6HM3/H	SS2FH6HM3/H
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Voltage - DC Reverse (Vr) (Max)	60 V	60 V	60 V	60 V	60 V
Current - Average Rectified (Io)	2 A	2 A	1 A	1 A	2 A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 2 A	700 mV @ 2 A	700 mV @ 1 A	700 mV @ 1 A	780 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)
Current - Reverse Leakage @ Vr	400 µA @ 60 V	400 µA @ 60 V	3 µA @ 60 V	3 µA @ 60 V	3 µA @ 60 V
Package / Case	DO-219AB	DO-219AB	DO-219AB	DO-219AB	DO-219AB
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 175°C	-55 to 175°C	-55 to 175°C
Technology	Schottky	Schottky	Schottky	Schottky	Schottky
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Qualification	—	—	—	AEC-Q101	AEC-Q101

Engineering Selection Recommendations

SS26L RVG (Parametric Equivalent): This part is the direct electrical equivalent of the SS26L RTG with identical voltage, current, and thermal specifications. Selection is appropriate when packaging format (Cut Tape) meets supply chain or assembly requirements. Both parts maintain active product status and ROHS3 compliance.

SS1FH6-M3/H (Current-Reduced Alternative): This Vishay part is suitable for applications where the 1 A current rating is sufficient. The extended operating temperature range (-55 to 175°C) provides thermal margin beyond the main part specification. This part is not automotive qualified. Selection is appropriate for commercial-grade applications requiring improved reverse leakage performance (3 µA versus 400 µA).

SS1FH6HM3/H (Automotive-Qualified, Current-Reduced): This part combines automotive qualification (AEC-Q101) with the 1 A current rating and extended temperature range. Selection is appropriate for automotive applications where the reduced current rating is acceptable and enhanced reliability certification is required.

SS2FH6HM3/H (Automotive-Qualified, Full Current Rating): This part maintains the 2 A current rating of the main part while providing automotive qualification (AEC-Q101), extended operating temperature range (-55 to 175°C), and superior reverse leakage characteristics (3 µA @ 60 V). Forward voltage is specified at 780 mV @ 2 A, representing a 80 mV increase from the main part. Selection is appropriate for automotive applications requiring full current capacity and enhanced reliability certification.

Frequently Asked Questions (FAQ)

Q: Can SS26L RVG be used as a direct replacement for SS26L RTG?

A: Yes. The SS26L RVG is a parametric equivalent with identical electrical specifications (60 V, 2 A, 700 mV forward voltage, 400 µA reverse leakage) and package format (DO-219AB). The difference is packaging format (Cut Tape versus standard packaging). Both parts are ROHS3 compliant and maintain active product status.

Q: What is the primary difference between the main part and Vishay alternatives?

A: The Vishay parts (SS1FH6-M3/H, SS1FH6HM3/H, SS2FH6HM3/H) feature significantly lower reverse leakage current (3 µA @ 60 V versus 400 µA @ 60 V) and extended operating temperature range (-55 to 175°C versus -55 to 150°C). The SS1FH6 series parts are rated for 1 A current, while the SS2FH6HM3/H maintains the 2 A rating.

Q: Can I use a 1 A rated part (SS1FH6-M3/H or SS1FH6HM3/H) in place of the 2 A rated SS26L RTG?

A: Substitution is only appropriate if the application circuit operates at or below 1 A average rectified current. The 1 A current rating represents the maximum safe operating point for these parts. Exceeding this rating will result in component failure.

Q: What is the significance of AEC-Q101 qualification on SS1FH6HM3/H and SS2FH6HM3/H?

A: AEC-Q101 is an automotive industry qualification standard that certifies component reliability for automotive applications. Parts bearing this qualification have undergone enhanced testing and screening. Selection of AEC-Q101 qualified parts is required for automotive applications.

Q: How does the forward voltage difference between SS26L RTG (700 mV @ 2 A) and SS2FH6HM3/H (780 mV @ 2 A) affect circuit design?

A: The 80 mV difference represents approximately 11% higher forward voltage drop at 2 A. This increases power dissipation in the diode. Circuit designs with tight thermal budgets or high-frequency switching applications should account for this difference through thermal analysis or power budget recalculation.

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

A: Yes. All parts listed (SS26L RTG, SS26L RVG, SS1FH6-M3/H, SS1FH6HM3/H, SS2FH6HM3/H) use the DO-219AB package format. Packaging format differences exist only in the tape and reel configuration (Cut Tape versus standard Tape & Reel), which does not affect electrical performance or PCB footprint compatibility.

Q: What is the difference between SS1FH6-M3/H and SS1FH6HM3/H?

A: Both parts are rated for 1 A current at 60 V with identical electrical specifications. The SS1FH6HM3/H includes automotive qualification (AEC-Q101) and is designated for automotive applications. The SS1FH6-M3/H is a commercial-grade equivalent without automotive certification.

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