SS110LHR3G Equivalent & Substitute Parts

Part Overview

The SS110LHR3G 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 identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, design flexibility, or manufacturing discontinuation of specific variants.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	100 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	800 mV @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	50 µA @ 100 V
Package / Case	DO-219AB
Mounting Type	Surface Mount
Operating Temperature - Junction	-55°C ~ 150°C
Technology	Schottky
RoHS Status	ROHS3 Compliant
Grade	Automotive
Qualification	AEC-Q101

Substitute Part Grouping Explanation

Substitution of the SS110LHR3G is determined by the following critical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 100 V
Current - Average Rectified (Io): 1 A minimum
Technology: Schottky
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Compatibility Criteria:

Package / Case: DO-219AB
Mounting Type: Surface Mount
Supplier Device Package: Sub SMA or DO-219AB (SMF)

Compliance Criteria:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

Substitute parts are grouped into two categories:

Category 1 - Parametric Equivalents (Taiwan Semiconductor Corporation): Parts with identical electrical ratings and the same manufacturer base product series. SS110L meets all electrical and mechanical requirements with Active product status, though classified as Not For New Designs.

Category 2 - Similar Alternatives (Vishay General Semiconductor - Diodes Division): Parts with equivalent or superior electrical performance in the same package family. These include 1A-rated devices (SS1FH10-M3/H, SS1FH10HM3/H) and 2A-rated devices (SS2FH10-M3/H, SS2FH10HM3/H). The 2A variants provide higher current capacity while maintaining 100V reverse voltage rating and DO-219AB package compatibility.

Parameter Comparison

Parameter	SS110LHR3G (Main)	SS110L	SS1FH10-M3/H	SS1FH10HM3/H	SS2FH10-M3/H	SS2FH10HM3/H
Manufacturer	Taiwan Semiconductor	Taiwan Semiconductor	Vishay	Vishay	Vishay	Vishay
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
Product Status	Active	Not For New Designs	Active	Active	Active	Active
Grade	Automotive	Not specified	Not specified	Automotive	Not specified	Automotive
Qualification	AEC-Q101	Not specified	Not specified	AEC-Q101	Not specified	AEC-Q101
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (1A Current Rating):

SS110L is the parametric equivalent from Taiwan Semiconductor Corporation. It maintains identical electrical specifications (100V, 1A, 800mV forward voltage) and package compatibility. However, this part carries "Not For New Designs" status, limiting its use to legacy system support or inventory management scenarios.

SS1FH10HM3/H from Vishay General Semiconductor is the preferred direct replacement for new designs. It provides equivalent 1A current rating and 100V reverse voltage in the same DO-219AB package with Active product status and AEC-Q101 automotive qualification. The extended operating temperature range (-55°C to 175°C versus -55°C to 150°C) offers additional thermal margin. Reverse leakage current is reduced to 5 µA at 100V, indicating superior device quality.

For Higher Current Capacity Applications:

SS2FH10HM3/H provides 2A average rectified current while maintaining 100V reverse voltage rating and DO-219AB package compatibility. This variant is suitable for applications requiring increased current handling with the same voltage class. It carries Active product status and AEC-Q101 automotive qualification. Forward voltage increases to 860mV at 2A operation, which must be evaluated against thermal and efficiency requirements.

For Automotive Applications:

SS1FH10HM3/H and SS2FH10HM3/H both carry AEC-Q101 qualification and Automotive grade designation, making them suitable for automotive circuit applications. SS110LHR3G itself is automotive-qualified, so these Vishay alternatives maintain compliance requirements.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited moisture sensitivity), and REACH Unaffected status, ensuring regulatory alignment with the original SS110LHR3G specification.

Frequently Asked Questions (FAQ)

Q: Can SS110L be used as a direct replacement for SS110LHR3G?

A: SS110L meets all electrical and mechanical requirements with identical 100V reverse voltage, 1A current rating, and DO-219AB package. However, SS110L carries "Not For New Designs" product status. It is suitable for legacy system maintenance or inventory substitution but not recommended for new circuit designs.

Q: What is the difference between the 1A and 2A Vishay variants?

A: SS1FH10HM3/H is rated for 1A average rectified current with 800mV forward voltage at 1A. SS2FH10HM3/H is rated for 2A average rectified current with 860mV forward voltage at 2A. Both maintain 100V reverse voltage and DO-219AB package compatibility. The 2A variant is selected when circuit design requires higher current capacity within the same voltage class.

Q: Are Vishay SS1FH10HM3/H and SS2FH10HM3/H compatible with automotive applications?

A: Yes. Both Vishay parts carry AEC-Q101 qualification and Automotive grade designation, matching the automotive requirements of the original SS110LHR3G. They are suitable for automotive circuit applications.

Q: What is the significance of the extended operating temperature range in Vishay parts?

A: Vishay SS1FH10HM3/H and SS2FH10HM3/H operate from -55°C to 175°C, compared to -55°C to 150°C for SS110LHR3G. The additional 25°C upper temperature margin provides design flexibility in high-temperature environments and reduces thermal stress during peak operation.

Q: How do reverse leakage currents compare between substitute options?

A: SS110LHR3G and SS110L specify 50 µA reverse leakage at 100V. Vishay parts (SS1FH10-M3/H, SS1FH10HM3/H, SS2FH10HM3/H) specify 5 µA reverse leakage, representing a 10-fold reduction. Lower reverse leakage indicates superior device quality and reduced power dissipation in reverse-biased conditions.

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

A: SS110L is supplied in Tape & Reel (TR) packaging. Vishay SS1FH10-M3/H is available in Cut Tape (CT) & Digi-Reel®. Vishay SS1FH10HM3/H is available in Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR). Vishay SS2FH10-M3/H is available in Cut Tape (CT) & Digi-Reel®. Vishay SS2FH10HM3/H is supplied in Tape & Reel (TR). All parts use the same DO-219AB (Sub SMA / SMF) mechanical package.

Q: Can SS1FH10-M3/H be used interchangeably with SS1FH10HM3/H?

A: Both parts have identical electrical specifications (100V, 1A, 800mV forward voltage) and DO-219AB package. SS1FH10-M3/H lacks specified automotive grade and AEC-Q101 qualification, while SS1FH10HM3/H carries both designations. For automotive applications, SS1FH10HM3/H is the appropriate selection.

Q: What is the base product number significance?

A: Base product numbers (SS110 for Taiwan Semiconductor parts, SS1FH10 and SS2FH10 for Vishay parts) identify the core device family. Suffixes indicate packaging, temperature grade, and qualification variants. Parts sharing the same base number maintain core electrical characteristics while differing in packaging or qualification levels.

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