SS110L RFG Equivalent & Substitute Parts

Part Overview

The SS110L RFG 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 with enhanced electrical characteristics or automotive-grade qualifications.

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 RFG is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 100 V
Current - Average Rectified (Io): Must equal or exceed 1 A
Package / Case: Must be DO-219AB (Sub SMA / SMF)
Mounting Type: Must be Surface Mount
Technology: Must be Schottky
RoHS Status: Must be ROHS3 Compliant

Secondary Compatibility Parameters:

Voltage - Forward (Vf) (Max) @ If: Acceptable within design tolerance
Speed: Must maintain Fast Recovery ≤ 500ns, > 200mA (Io)
Operating Temperature - Junction: Must support -55°C to 150°C minimum range
Current - Reverse Leakage @ Vr: Lower values indicate improved performance

Substitute parts are grouped into two categories: parametric equivalents (identical electrical ratings) and similar parts (enhanced ratings or automotive qualifications that maintain backward compatibility).

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Reverse Leakage @ Vr	Package	Product Status	Temp Range	Automotive Grade
SS110L RFG	Taiwan Semiconductor Corporation	100 V	1 A	800 mV @ 1 A	50 µA @ 100 V	DO-219AB	Active	-55 to 150°C	—
SS110L	Taiwan Semiconductor Corporation	100 V	1 A	800 mV @ 1 A	50 µA @ 100 V	DO-219AB	Not For New Designs	-55 to 150°C	—
SS1FH10-M3/H	Vishay General Semiconductor - Diodes Division	100 V	1 A	800 mV @ 1 A	5 µA @ 100 V	DO-219AB	Active	-55 to 175°C	—
SS1FH10HM3/H	Vishay General Semiconductor - Diodes Division	100 V	1 A	800 mV @ 1 A	5 µA @ 100 V	DO-219AB	Active	-55 to 175°C	AEC-Q101
SS2FH10-M3/H	Vishay General Semiconductor - Diodes Division	100 V	2 A	860 mV @ 2 A	5 µA @ 10 V	DO-219AB	Active	-55 to 175°C	—
SS2FH10HM3/H	Vishay General Semiconductor - Diodes Division	100 V	2 A	860 mV @ 2 A	5 µA @ 100 V	DO-219AB	Active	-55 to 175°C	AEC-Q101

Engineering Selection Recommendations

Parametric Equivalent (Identical Ratings):

The SS110L (Tape & Reel packaging variant) from Taiwan Semiconductor Corporation is a parametric equivalent to the SS110L RFG. Both parts share identical electrical specifications (100 V, 1 A, 800 mV forward voltage). However, the SS110L carries a "Not For New Designs" product status designation, making it unsuitable for new circuit development. The SS110L RFG maintains Active status and is the preferred selection for ongoing production.

Direct Substitutes (1 A Rating, Enhanced Performance):

The SS1FH10-M3/H and SS1FH10HM3/H from Vishay General Semiconductor - Diodes Division are direct electrical substitutes for the SS110L RFG. Both maintain the 100 V / 1 A rating with identical forward voltage characteristics. These parts offer improved reverse leakage current (5 µA versus 50 µA) and extended operating temperature range (-55°C to 175°C versus -55°C to 150°C). Both parts are ROHS3 compliant. The SS1FH10HM3/H carries AEC-Q101 automotive qualification, suitable for automotive applications. Both parts are Active status.

Higher Current Alternatives (2 A Rating, Enhanced Performance):

The SS2FH10-M3/H and SS2FH10HM3/H from Vishay General Semiconductor - Diodes Division provide 2 A average rectified current while maintaining the 100 V reverse voltage rating. These parts are suitable for applications requiring higher current capacity with the same voltage class. Forward voltage increases to 860 mV at 2 A operation. Reverse leakage current is 5 µA. Both parts support -55°C to 175°C operating range and are ROHS3 compliant. The SS2FH10HM3/H carries AEC-Q101 automotive qualification. Both parts are Active status.

Frequently Asked Questions (FAQ)

Q: Can the SS110L RFG be directly replaced with the SS110L variant?

A: Electrical substitution is possible due to identical specifications. However, the SS110L carries "Not For New Designs" status. For new designs and ongoing production, the SS110L RFG (Active status) is the appropriate selection.

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

A: Both parts are electrically identical 1 A / 100 V Schottky diodes from Vishay. The primary difference is that SS1FH10HM3/H carries AEC-Q101 automotive qualification, making it suitable for automotive applications. Both are Active status with improved reverse leakage (5 µA) compared to the SS110L RFG (50 µA).

Q: Can I use the SS2FH10-M3/H or SS2FH10HM3/H as a direct replacement for the SS110L RFG?

A: These parts are backward compatible substitutes. They maintain the 100 V reverse voltage rating but provide doubled current capacity (2 A versus 1 A). Forward voltage increases to 860 mV at rated current. Use these parts when circuit design allows higher current capability or when future design margin is required.

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

A: All substitute parts use the DO-219AB (Sub SMA / SMF) surface mount package, identical to the SS110L RFG. Packaging format variants (Tape & Reel, Cut Tape, Digi-Reel) do not affect electrical performance and are determined by manufacturing and procurement requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The SS110L RFG and all listed substitute parts (SS110L, SS1FH10-M3/H, SS1FH10HM3/H, SS2FH10-M3/H, SS2FH10HM3/H) are ROHS3 compliant with REACH Unaffected status.

Q: Which substitute part should I select for automotive applications?

A: For automotive applications requiring 1 A capacity, select SS1FH10HM3/H (AEC-Q101 qualified). For automotive applications requiring 2 A capacity, select SS2FH10HM3/H (AEC-Q101 qualified). Both parts maintain the 100 V rating and are Active status.

Q: What is the temperature operating range difference between the SS110L RFG and Vishay substitutes?

A: The SS110L RFG operates from -55°C to 150°C junction temperature. Vishay substitutes (SS1FH10 and SS2FH10 series) operate from -55°C to 175°C, providing 25°C additional high-temperature margin.

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