SS310L MHG Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS310L MHG is a surface mount Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100 V DC reverse voltage and 3 A average rectified current. This component is classified as Active product status and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1). The SS310L MHG is packaged in DO-219AB (Sub SMA) format for surface mount applications.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required, or when design specifications allow for compatible alternatives with different current ratings or manufacturer sources. This reference provides engineering-validated alternatives based on electrical and mechanical parameter compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	850 mV @ 3 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	100	µA @ 100 V
Mounting Type	Surface Mount	—
Package / Case	DO-219AB	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the SS310L MHG is determined by the following critical parameters:

Mandatory Matching Parameters:

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

Allowable Variation Parameters:

Current - Average Rectified (Io): Substitute parts may have lower current ratings (1 A or 2 A) provided the application does not exceed the substitute part's current specification
Voltage - Forward (Vf) (Max) @ If: Minor variations acceptable within the same voltage class
Current - Reverse Leakage @ Vr: Lower leakage values are acceptable
Operating Temperature - Junction: Extended temperature ranges are acceptable
Manufacturer: Alternative qualified manufacturers permitted

Substitute parts are grouped into three categories based on current rating: 1 A alternatives (SS1FH10 series), 2 A alternatives (SS2FH10 series), and 3 A equivalents (SS310L variants). All substitute parts maintain the 100 V reverse voltage rating and DO-219AB package format required for direct mechanical and electrical compatibility.

Parameter Comparison

Parameter	SS310L MHG (Main)	SS310L (Parametric Equivalent)	SS1FH10-M3/H	SS1FH10HM3/H	SS2FH10-M3/H	SS2FH10HM3/H
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	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)	3 A	3 A	1 A	1 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	850 mV @ 3 A	850 mV @ 3 A	800 mV @ 1 A	800 mV @ 1 A	860 mV @ 2 A	860 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 100 V	100 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
Product Status	Active	Not For New Designs	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Series	—	—	eSMP®	eSMP®	eSMP®	eSMP®

Engineering Selection Recommendations

Primary Equivalent (Direct Replacement): The SS310L (Parametric Equivalent) from Taiwan Semiconductor Corporation is the direct parametric match for the SS310L MHG, maintaining identical electrical specifications and 100 V / 3 A ratings. However, this part is designated "Not For New Designs," indicating it is in mature or declining production status. For new designs, the SS310L MHG should be prioritized while available.

Secondary Equivalents (Current-Rated Alternatives): The SS2FH10HM3/H from Vishay General Semiconductor is the recommended substitute when the SS310L MHG is unavailable. This part maintains the 100 V reverse voltage rating and DO-219AB package format, with a 2 A current rating. The SS2FH10HM3/H is Active product status with AEC-Q101 automotive qualification, extended operating temperature range (-55 to 175°C), and lower reverse leakage current (5 µA @ 100 V). This part is suitable for applications where the circuit design can operate within 2 A maximum current limits.

The SS2FH10-M3/H provides equivalent electrical performance to the SS2FH10HM3/H with Active product status and is available in Cut Tape & Digi-Reel® packaging format.

Lower Current Alternatives: The SS1FH10HM3/H and SS1FH10-M3/H are 1 A rated alternatives suitable only for applications with maximum current requirements not exceeding 1 A. These parts maintain 100 V reverse voltage rating, DO-219AB package compatibility, and offer extended temperature range (-55 to 175°C) with AEC-Q101 qualification (SS1FH10HM3/H).

Compliance and Certification: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the environmental and regulatory requirements of the primary part. The Vishay eSMP® series alternatives provide enhanced temperature performance and lower reverse leakage characteristics compared to the Taiwan Semiconductor Corporation parts.

Frequently Asked Questions (FAQ)

Q: Can the SS310L MHG be replaced with a 1 A or 2 A rated Schottky diode?

A: Substitution with lower current-rated parts is permitted only if the application circuit operates within the substitute part's current specification. The SS1FH10 series (1 A) and SS2FH10 series (2 A) are electrically compatible at the 100 V reverse voltage rating and DO-219AB package level. However, if the circuit requires 3 A operation, only 3 A rated alternatives such as the SS310L (Parametric Equivalent) are suitable.

Q: What is the difference between SS310L MHG and SS310L?

A: Both parts are manufactured by Taiwan Semiconductor Corporation with identical electrical specifications (100 V, 3 A, 850 mV forward voltage). The primary difference is product status: SS310L MHG is Active, while SS310L is designated "Not For New Designs." The SS310L may have different packaging format (Tape & Reel vs. standard packaging). For new designs, the SS310L MHG is the preferred selection.

Q: Are Vishay eSMP® series diodes (SS1FH10, SS2FH10) compatible with the SS310L MHG footprint?

A: Yes. All substitute parts use the DO-219AB (SMF) package format, which provides identical mechanical and electrical footprint compatibility. Surface mount assembly equipment and PCB layouts designed for the SS310L MHG will accommodate Vishay eSMP® series alternatives without modification.

Q: What are the key differences between SS2FH10-M3/H and SS2FH10HM3/H?

A: Both parts are Vishay eSMP® series 100 V / 2 A Schottky diodes with identical electrical specifications. The primary differences are packaging format (SS2FH10-M3/H is Cut Tape & Digi-Reel®; SS2FH10HM3/H is Tape & Reel) and qualification level (SS2FH10HM3/H includes AEC-Q101 automotive qualification). For automotive applications, the SS2FH10HM3/H is specified.

Q: Does the extended operating temperature range of Vishay parts affect compatibility?

A: No. The extended operating temperature range (-55 to 175°C for Vishay parts versus -55 to 150°C for Taiwan Semiconductor Corporation parts) represents an enhancement that does not affect electrical compatibility. Applications designed for the SS310L MHG temperature range will operate within the Vishay part specifications.

Q: What is the significance of reverse leakage current differences between parts?

A: The SS310L MHG specifies 100 µA reverse leakage at 100 V, while Vishay alternatives specify 5 µA. Lower reverse leakage current is beneficial for applications sensitive to standby power consumption or requiring minimal off-state current. This difference does not prevent substitution but may improve circuit performance in leakage-sensitive applications.

Q: Can the SS310L MHG be used in new designs, or should alternatives be selected?

A: The SS310L MHG is designated Active product status and is suitable for new designs. However, designers should evaluate the Vishay eSMP® series alternatives (particularly SS2FH10HM3/H for 2 A applications) due to their Active status, extended temperature range, lower reverse leakage, and automotive qualification, which may provide long-term supply security and enhanced performance characteristics.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message