SS110LHM2G Equivalent & Substitute Parts

Part Overview

The SS110LHM2G 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 automotive-grade qualification (AEC-Q101). The part is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are necessary when the primary part 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
Package / Case	DO-219AB	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Schottky	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitution of the SS110LHM2G is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Direct Substitution:

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

Parameters Allowing Extended Substitution:

Forward Voltage (Vf): Up to 800 mV @ 1A
Reverse Leakage Current: Up to 50 µA @ 100V
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Substitute parts are grouped into two categories:

Category 1 - Parametric Equivalents: Parts maintaining identical electrical ratings (100V, 1A) with matching package specifications. These parts are direct functional replacements.

Category 2 - Similar Parts with Enhanced Specifications: Parts that exceed the minimum electrical requirements (higher current ratings, lower reverse leakage, extended temperature range) while maintaining the same package form factor and voltage rating. These parts are electrically compatible and functionally superior.

Parameter Comparison

Parameter	SS110LHM2G	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
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 175°C	-55 to 175°C	-55 to 175°C	-55 to 175°C
Technology	Schottky	Schottky	Schottky	Schottky	Schottky	Schottky
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Not For New Designs	Active	Active	Active	Active
Grade	Automotive	—	—	Automotive	—	Automotive
Qualification	AEC-Q101	—	—	AEC-Q101	—	AEC-Q101

Engineering Selection Recommendations

SS110L (Taiwan Semiconductor Corporation)

The SS110L is a parametric equivalent to the SS110LHM2G with identical electrical specifications (100V, 1A, 800 mV forward voltage). However, this part carries a product status of "Not For New Designs," indicating it is in end-of-life phase. Selection of SS110L is appropriate only for legacy system maintenance or replacement applications where design continuity is required. For new designs, alternative parts with Active status are preferred.

SS1FH10-M3/H (Vishay General Semiconductor - Diodes Division)

The SS1FH10-M3/H is a functionally equivalent Schottky diode from the eSMP® series with matching 100V and 1A ratings. This part offers improved reverse leakage characteristics (5 µA versus 50 µA) and extended operating temperature range (-55°C to 175°C versus -55°C to 150°C). The part maintains Active product status and ROHS3 compliance. This part is suitable for applications where lower leakage current is beneficial and does not require automotive qualification.

SS1FH10HM3/H (Vishay General Semiconductor - Diodes Division)

The SS1FH10HM3/H is functionally equivalent to the SS110LHM2G with identical electrical ratings (100V, 1A) and carries automotive-grade qualification (AEC-Q101) matching the primary part. This part features improved reverse leakage (5 µA) and extended temperature range (-55°C to 175°C). The part is supplied in Cut Tape and Digi-Reel® packaging and maintains Active product status. This part is the preferred substitute for automotive applications requiring AEC-Q101 compliance.

SS2FH10-M3/H (Vishay General Semiconductor - Diodes Division)

The SS2FH10-M3/H is a higher-current variant rated for 2A average rectified current at 100V reverse voltage. This part is electrically superior to the SS110LHM2G and is suitable for applications requiring increased current capacity. The part maintains Active status and ROHS3 compliance but does not carry automotive qualification. Forward voltage is 860 mV @ 2A. This part is appropriate for non-automotive applications where higher current handling is required.

SS2FH10HM3/H (Vishay General Semiconductor - Diodes Division)

The SS2FH10HM3/H is a higher-current variant (2A) with automotive-grade qualification (AEC-Q101) and Active product status. This part combines enhanced current rating with automotive compliance, making it suitable for automotive applications requiring current capacity beyond 1A. Operating temperature range extends to 175°C. This part is the preferred substitute for automotive applications requiring both higher current and AEC-Q101 compliance.

Frequently Asked Questions (FAQ)

Q: Can SS110L be used as a direct replacement for SS110LHM2G?

A: SS110L is electrically equivalent with identical voltage (100V) and current (1A) ratings. However, SS110L carries "Not For New Designs" status, indicating end-of-life phase. It is suitable only for legacy system maintenance. For new designs, SS1FH10HM3/H or SS2FH10HM3/H are preferred alternatives.

Q: What is the primary difference between SS1FH10HM3/H and SS110LHM2G?

A: Both parts are rated for 100V and 1A operation. The SS1FH10HM3/H offers 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 carry automotive qualification (AEC-Q101). The SS1FH10HM3/H is manufactured by Vishay General Semiconductor.

Q: When should SS2FH10HM3/H be selected instead of SS110LHM2G?

A: SS2FH10HM3/H should be selected when the application requires current capacity exceeding 1A. This part is rated for 2A average rectified current at 100V and carries automotive qualification (AEC-Q101). All other electrical and mechanical parameters remain compatible with the primary part.

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

A: All substitute parts listed are supplied in DO-219AB (Sub SMA) surface mount package, matching the primary part. Packaging format variations (Tape & Reel, Cut Tape, Digi-Reel®) refer to supply method and do not affect component form factor or PCB compatibility.

Q: Which substitute part is recommended for automotive applications?

A: For automotive applications requiring direct electrical equivalence, SS1FH10HM3/H is recommended. For applications requiring higher current capacity, SS2FH10HM3/H is recommended. Both parts carry AEC-Q101 automotive qualification and Active product status.

Q: What is the significance of the reverse leakage current difference between SS110LHM2G and Vishay alternatives?

A: The Vishay parts (SS1FH10-M3/H, SS1FH10HM3/H, SS2FH10-M3/H, SS2FH10HM3/H) feature reverse leakage current of 5 µA compared to 50 µA for the SS110LHM2G. Lower reverse leakage reduces power dissipation and heat generation in reverse-biased conditions, improving overall circuit efficiency and reliability.

Q: Can SS2FH10-M3/H be used in place of SS110LHM2G without automotive qualification requirements?

A: Yes. SS2FH10-M3/H is electrically compatible and functionally superior with 2A current rating. However, this part does not carry automotive qualification (AEC-Q101). It is suitable for non-automotive applications where higher current capacity is required.

Q: What is the operating temperature range difference between the primary part and Vishay substitutes?

A: The SS110LHM2G operates from -55°C to 150°C junction temperature. All Vishay substitute parts (SS1FH10-M3/H, SS1FH10HM3/H, SS2FH10-M3/H, SS2FH10HM3/H) extend the upper limit to 175°C, providing 25°C additional thermal margin for high-temperature applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (SS110L, SS1FH10-M3/H, SS1FH10HM3/H, SS2FH10-M3/H, SS2FH10HM3/H) are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1), matching the primary part SS110LHM2G.

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