SS110LHRFG Equivalent & Substitute Parts

Part Overview

The SS110LHRFG is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100V DC reverse voltage and 1A average rectified current in a surface mount Sub SMA package (DO-219AB). This component is classified as Active product status and carries AEC-Q101 automotive qualification.

Substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design requirements call for enhanced electrical characteristics such as increased current ratings or improved reverse leakage specifications.

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
Technology	Schottky	—
Package / Case	DO-219AB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55°C ~ 150°C	°C
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the SS110LHRFG is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 100V
Current - Average Rectified (Io): 1A minimum
Technology: Schottky
Package / Case: DO-219AB
Mounting Type: Surface Mount
Operating Temperature Range: Must encompass -55°C to 150°C minimum

Acceptable Variation Parameters:

Voltage - Forward (Vf): Equivalent or lower values acceptable
Current - Reverse Leakage @ Vr: Lower values acceptable (improved performance)
Capacitance @ Vr, F: Variation acceptable if not specified in original
Packaging Format: Tape & Reel (TR), Cut Tape (CT), or Digi-Reel® formats are interchangeable for the same electrical component
Product Status: Active status preferred; Not For New Designs acceptable for legacy applications
Automotive Grade and AEC-Q101 qualification: Preferred for consistency but not mandatory for electrical equivalence

Non-Substitutable Parameters:

Current rating below 1A
Voltage rating below 100V
Different package type or form factor

Parameter Comparison

Parameter	SS110LHRFG (Main)	SS110L	SS1FH10-M3/H	SS1FH10HM3/H	SS2FH10-M3/H	SS2FH10HM3/H
Manufacturer	Taiwan Semiconductor	Taiwan Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	800 mV @ 1 A	800 mV @ 1 A	800 mV @ 1 A	800 mV @ 1 A	860 mV @ 2 A	860 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Current - Reverse Leakage @ Vr	50 µA @ 100 V	50 µA @ 100 V	5 µA @ 100 V	5 µA @ 100 V	5 µA @ 10 V	5 µA @ 100 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	-55°C ~ 150°C	-55°C ~ 175°C	-55°C ~ 175°C	-55°C ~ 175°C	-55°C ~ 175°C
Technology	Schottky	Schottky	Schottky	Schottky	Schottky	Schottky
Grade	Automotive	—	—	Automotive	—	Automotive
Qualification	AEC-Q101	—	—	AEC-Q101	—	AEC-Q101
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Electrical Equivalent (1A Rating):

SS110L is a parametric equivalent manufactured by Taiwan Semiconductor Corporation with identical electrical specifications to the SS110LHRFG. The primary distinction is product status classification as Not For New Designs, which indicates this part is in mature production phase. SS110L is suitable for replacement in existing designs and legacy applications where the 1A current rating is specified.

SS1FH10-M3/H and SS1FH10HM3/H are Vishay General Semiconductor equivalents rated for 1A operation. Both parts maintain the 100V reverse voltage and 1A current specifications. SS1FH10HM3/H carries Automotive grade and AEC-Q101 qualification matching the original part. Both Vishay parts feature improved reverse leakage characteristics (5 µA versus 50 µA) and extended operating temperature range to 175°C. SS1FH10HM3/H is classified as Active product status.

Higher Current Rating (2A Rating):

SS2FH10-M3/H and SS2FH10HM3/H are rated for 2A average rectified current while maintaining the 100V reverse voltage specification. These parts are suitable for applications requiring increased current capacity beyond the 1A specification. Both parts are manufactured by Vishay General Semiconductor and feature improved reverse leakage (5 µA) and extended temperature range (−55°C to 175°C). SS2FH10HM3/H carries Automotive grade and AEC-Q101 qualification. Both are classified as Active product status.

Compliance and Qualification:

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. Parts designated with Automotive grade and AEC-Q101 qualification (SS1FH10HM3/H and SS2FH10HM3/H) are preferred for applications requiring automotive-grade component assurance.

Frequently Asked Questions (FAQ)

Q: Can SS110L be used as a direct replacement for SS110LHRFG?

A: Yes. SS110L is a parametric equivalent with identical electrical specifications: 100V reverse voltage, 1A average rectified current, 800 mV forward voltage at 1A, and fast recovery characteristics. The primary difference is product status classification. SS110L is suitable for direct substitution in existing designs.

Q: What is the difference between the Taiwan Semiconductor and Vishay substitute parts?

A: Both manufacturers provide Schottky diodes in the DO-219AB package with 100V and 1A ratings. Vishay parts (SS1FH10 series) feature improved reverse leakage specifications (5 µA versus 50 µA) and extended operating temperature range to 175°C. Vishay's SS1FH10HM3/H and SS2FH10HM3/H variants include Automotive grade and AEC-Q101 qualification.

Q: Can I use SS2FH10-M3/H or SS2FH10HM3/H in place of SS110LHRFG?

A: Yes, with design consideration. These parts are rated for 2A average rectified current, which exceeds the 1A specification of the original part. They maintain the 100V reverse voltage and are electrically compatible. The 2A rating provides increased current capacity margin. Both parts are Active status and feature improved reverse leakage and extended temperature range.

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

A: This classification indicates the part is in mature production phase and available for existing designs and legacy applications. It does not indicate obsolescence or functional deficiency. SS110L remains electrically equivalent and suitable for replacement applications.

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

A: Substitute parts are available in different packaging formats: Tape & Reel (TR), Cut Tape (CT), and Digi-Reel®. These formats represent different supply and handling methods for the same electrical component. Selection depends on manufacturing process requirements and assembly equipment compatibility.

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

A: SS1FH10HM3/H and SS2FH10HM3/H are designated with Automotive grade and AEC-Q101 qualification, matching the original SS110LHRFG classification. These parts are preferred for automotive applications requiring compliance with automotive qualification standards.

Q: What is the significance of the improved reverse leakage in Vishay parts?

A: Vishay substitute parts specify 5 µA reverse leakage at 100V compared to 50 µA for the original part. Lower reverse leakage indicates reduced parasitic current flow in reverse bias condition, which can improve circuit efficiency and reduce power dissipation in applications sensitive to leakage current.

Q: Can I mix different substitute parts in the same circuit board?

A: Yes. All substitute parts maintain identical package form factor (DO-219AB) and mounting type (Surface Mount). Electrical compatibility is maintained across all substitutes for the 1A rating category. For 2A-rated parts, ensure circuit design accommodates the higher current rating.

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