SS110L RQG Equivalent & Substitute Parts

Part Overview

The SS110L RQG is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100 V DC reverse voltage and 1 A average rectified current in a DO-219AB (Sub SMA) surface mount package. This component is classified as Active product status and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design specifications allow for compatible alternatives from different manufacturers with identical or superior electrical characteristics.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	800 mV @ 1 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	50	µA @ 100 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

Substitution of the SS110L RQG is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

Voltage - DC Reverse (Vr) (Max): 100 V
Package / Case: DO-219AB
Mounting Type: Surface Mount
Technology: Schottky
RoHS Status: ROHS3 Compliant

Current Rating Considerations:

Direct equivalents maintain 1 A average rectified current (Io)
Higher current-rated alternatives (2 A) are functionally compatible in applications where the 1 A specification is not a limiting constraint

Reverse Leakage Tolerance:

Substitute parts with lower reverse leakage current (5 µA vs. 50 µA @ 100 V) represent improved performance characteristics and are acceptable substitutes

Temperature Range:

Substitute parts with extended operating temperature ranges (-55°C to 175°C vs. -55°C to 150°C) provide additional thermal margin and are acceptable substitutes

Packaging Format:

Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging formats are interchangeable with the original part's packaging specification for component procurement purposes

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf @ If	Reverse Leakage @ Vr	Package	Temp Range	Product Status
SS110L RQG	Taiwan Semiconductor Corporation	100 V	1 A	800 mV @ 1 A	50 µA @ 100 V	DO-219AB	-55 to 150°C	Active
SS110L	Taiwan Semiconductor Corporation	100 V	1 A	800 mV @ 1 A	50 µA @ 100 V	DO-219AB	-55 to 150°C	Not For New Designs
SS1FH10-M3/H	Vishay General Semiconductor - Diodes Division	100 V	1 A	800 mV @ 1 A	5 µA @ 100 V	DO-219AB	-55 to 175°C	Active
SS1FH10HM3/H	Vishay General Semiconductor - Diodes Division	100 V	1 A	800 mV @ 1 A	5 µA @ 100 V	DO-219AB	-55 to 175°C	Active
SS2FH10-M3/H	Vishay General Semiconductor - Diodes Division	100 V	2 A	860 mV @ 2 A	5 µA @ 10 V	DO-219AB	-55 to 175°C	Active
SS2FH10HM3/H	Vishay General Semiconductor - Diodes Division	100 V	2 A	860 mV @ 2 A	5 µA @ 100 V	DO-219AB	-55 to 175°C	Active

Engineering Selection Recommendations

Direct Equivalents (1 A Rating):

The SS1FH10-M3/H and SS1FH10HM3/H from Vishay General Semiconductor - Diodes Division are direct functional equivalents to the SS110L RQG. Both parts maintain identical voltage and current ratings while offering improved reverse leakage characteristics (5 µA vs. 50 µA) and extended operating temperature range (-55°C to 175°C vs. -55°C to 150°C). Both are Active product status and ROHS3 compliant. The SS1FH10HM3/H includes AEC-Q101 automotive qualification.

Higher Current Alternatives (2 A Rating):

The SS2FH10-M3/H and SS2FH10HM3/H are functionally compatible substitutes with doubled current capacity (2 A vs. 1 A). These parts maintain the same 100 V reverse voltage rating and DO-219AB package. Both are Active product status and ROHS3 compliant. The SS2FH10HM3/H includes AEC-Q101 automotive qualification. These alternatives are suitable for applications where the original 1 A specification does not represent a design constraint.

Legacy Part Status:

The SS110L (Tape & Reel packaging) from Taiwan Semiconductor Corporation is electrically identical to the SS110L RQG but carries "Not For New Designs" product status. This part remains available but should not be selected for new circuit designs.

Compliance and Certifications:

All listed substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Automotive-grade variants (SS1FH10HM3/H and SS2FH10HM3/H) carry AEC-Q101 qualification for applications requiring automotive-level reliability.

Frequently Asked Questions (FAQ)

Q: Can the SS1FH10-M3/H be used as a direct replacement for the SS110L RQG?

A: Yes. The SS1FH10-M3/H is a direct functional equivalent with identical voltage (100 V) and current (1 A) ratings, same package (DO-219AB), and improved reverse leakage performance (5 µA vs. 50 µA). Both are ROHS3 compliant and rated for surface mount assembly.

Q: What is the difference between SS1FH10-M3/H and SS1FH10HM3/H?

A: Both parts are electrically identical with 100 V, 1 A ratings and DO-219AB packaging. The primary difference is packaging format: SS1FH10-M3/H is supplied in Tape & Reel (TR), while SS1FH10HM3/H is supplied in Cut Tape (CT) & Digi-Reel®. The SS1FH10HM3/H additionally carries AEC-Q101 automotive qualification.

Q: Can the 2 A rated SS2FH10-M3/H or SS2FH10HM3/H replace the 1 A SS110L RQG?

A: Yes, from an electrical compatibility standpoint. Both 2 A parts maintain the same 100 V reverse voltage rating and DO-219AB package. The higher current rating provides additional design margin in applications where 1 A is not a limiting specification. Forward voltage increases slightly (860 mV @ 2 A vs. 800 mV @ 1 A).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The SS110L RQG and all listed substitute parts (SS110L, SS1FH10-M3/H, SS1FH10HM3/H, SS2FH10-M3/H, SS2FH10HM3/H) are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Q: What does "Not For New Designs" mean for the SS110L part?

A: This product status designation indicates the part is available for existing applications and legacy support but should not be selected for new circuit designs. Active status parts (SS1FH10-M3/H, SS1FH10HM3/H, SS2FH10-M3/H, SS2FH10HM3/H) are recommended for new designs.

Q: Do the Vishay parts require different PCB layout or assembly procedures?

A: No. All substitute parts use the same DO-219AB package and surface mount assembly process. PCB footprints and reflow profiles remain identical to the original SS110L RQG specification.

Q: Which substitute part should be selected for automotive applications?

A: The SS1FH10HM3/H (1 A) or SS2FH10HM3/H (2 A) are qualified for automotive use with AEC-Q101 certification. Both maintain 100 V rating and DO-219AB packaging with extended temperature range (-55°C to 175°C).

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