SS26L MHG Equivalent & Substitute Parts

Part Overview

The SS26L MHG is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 60 V DC reverse voltage and 2 A average rectified current in a Sub SMA surface mount package. This component is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified based on matching electrical performance parameters, package compatibility, and thermal operating ranges. Alternative part numbers are necessary to support supply chain flexibility, inventory management, and design optimization across different manufacturing sources and packaging formats.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	60	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	700	mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	-
Current - Reverse Leakage @ Vr	400	µA @ 60 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

Substitute parts for the SS26L MHG are classified into two categories based on electrical parameter alignment:

Parametric Equivalent (Full Electrical Match): The SS26L RVG from Taiwan Semiconductor Corporation matches all electrical specifications of the main part: 60 V reverse voltage, 2 A average rectified current, 700 mV forward voltage at 2 A, and identical fast recovery speed characteristics. The primary difference is packaging format (Cut Tape versus standard packaging). This part is a direct functional equivalent.

Similar Parts (Partial Parameter Match): The Vishay General Semiconductor parts (SS1FH6-M3/H, SS1FH6HM3/H, and SS2FH6HM3/H) share the same 60 V reverse voltage rating and DO-219AB package footprint. However, these parts differ in average rectified current ratings and forward voltage specifications:

SS1FH6-M3/H and SS1FH6HM3/H: 1 A current rating (versus 2 A for main part)
SS2FH6HM3/H: 2 A current rating with 780 mV forward voltage (versus 700 mV for main part)

All substitute parts maintain Schottky technology, fast recovery speed characteristics, and surface mount configuration. The SS1FH6HM3/H and SS2FH6HM3/H carry automotive-grade qualification (AEC-Q101) and extended junction temperature range (-55°C to 175°C).

Parameter Comparison

Parameter	SS26L MHG	SS26L RVG	SS1FH6-M3/H	SS1FH6HM3/H	SS2FH6HM3/H
Manufacturer	Taiwan Semiconductor	Taiwan Semiconductor	Vishay	Vishay	Vishay
Voltage - DC Reverse (Vr) (Max)	60 V	60 V	60 V	60 V	60 V
Current - Average Rectified (Io)	2 A	2 A	1 A	1 A	2 A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 2 A	700 mV @ 2 A	700 mV @ 1 A	700 mV @ 1 A	780 mV @ 2 A
Speed	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns
Current - Reverse Leakage @ Vr	400 µA @ 60 V	400 µA @ 60 V	3 µA @ 60 V	3 µA @ 60 V	3 µA @ 60 V
Package / Case	DO-219AB	DO-219AB	DO-219AB	DO-219AB	DO-219AB
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 175°C	-55 to 175°C	-55 to 175°C
Technology	Schottky	Schottky	Schottky	Schottky	Schottky
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Grade	-	-	-	AEC-Q101	AEC-Q101

Engineering Selection Recommendations

SS26L RVG (Parametric Equivalent): This part is the primary equivalent for the SS26L MHG. It maintains identical electrical specifications across all critical parameters: 60 V reverse voltage, 2 A average rectified current, and 700 mV forward voltage. Both parts are ROHS3 compliant and carry Active product status. The SS26L RVG is packaged in Cut Tape format, making it suitable for automated assembly processes. Selection of this part introduces no electrical or thermal performance trade-offs.

SS2FH6HM3/H (Automotive-Grade 2 A Equivalent): This Vishay part matches the 2 A current rating and 60 V voltage specification of the main part. It carries AEC-Q101 automotive qualification and extended junction temperature range (-55°C to 175°C). The forward voltage specification is 780 mV at 2 A, representing a 80 mV increase compared to the SS26L MHG. This part is suitable for applications requiring automotive-grade reliability and higher thermal operating margins. The lower reverse leakage current (3 µA versus 400 µA) provides improved leakage performance.

SS1FH6-M3/H and SS1FH6HM3/H (1 A Alternatives): These parts are suitable only for applications where the circuit load current does not exceed 1 A. Both maintain the 60 V reverse voltage rating and fast recovery characteristics. The SS1FH6HM3/H includes AEC-Q101 automotive qualification. These parts are not direct replacements for the 2 A-rated SS26L MHG in circuits requiring full 2 A capacity.

Frequently Asked Questions (FAQ)

Q: Can the SS26L RVG be used as a direct replacement for the SS26L MHG?

A: Yes. The SS26L RVG is a parametric equivalent with identical electrical specifications: 60 V reverse voltage, 2 A average rectified current, and 700 mV forward voltage at 2 A. Both parts use the DO-219AB package and are ROHS3 compliant. The primary difference is packaging format (Cut Tape for the RVG).

Q: What is the key limitation of the SS1FH6-M3/H and SS1FH6HM3/H parts?

A: These parts are rated for 1 A average rectified current, compared to 2 A for the SS26L MHG. They are suitable only for circuits where the maximum load current does not exceed 1 A. Using these parts in a 2 A application would exceed the component's current rating.

Q: How does the SS2FH6HM3/H differ from the SS26L MHG?

A: The SS2FH6HM3/H matches the 2 A current rating and 60 V voltage specification. The forward voltage is specified at 780 mV at 2 A, compared to 700 mV for the SS26L MHG. The SS2FH6HM3/H includes AEC-Q101 automotive qualification and operates across an extended temperature range (-55°C to 175°C versus -55°C to 150°C). The reverse leakage current is significantly lower at 3 µA.

Q: Are all substitute parts compatible with the DO-219AB package footprint?

A: Yes. All listed substitute parts use the DO-219AB package, ensuring mechanical and electrical compatibility with existing PCB layouts designed for the SS26L MHG.

Q: What is the significance of the reverse leakage current difference between the main part and Vishay substitutes?

A: The SS26L MHG specifies 400 µA reverse leakage at 60 V, while the Vishay parts specify 3 µA. Lower reverse leakage current reduces power dissipation in reverse bias conditions and improves circuit efficiency. This difference is a material characteristic of the respective manufacturers' processes.

Q: Which substitute part is recommended for automotive applications?

A: The SS2FH6HM3/H is qualified for automotive use with AEC-Q101 certification. The SS1FH6HM3/H is also automotive-qualified but limited to 1 A current. Both parts provide extended temperature range operation (-55°C to 175°C).

Q: Can the SS26L MHG be used in place of the 1 A-rated Vishay parts?

A: Yes, from an electrical standpoint. The SS26L MHG is rated for 2 A, which exceeds the 1 A requirement of the SS1FH6-M3/H and SS1FH6HM3/H. However, this represents over-specification and may introduce unnecessary cost. Component selection should match circuit requirements precisely.

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