Equivalent & Substitute Parts for S1GL MHG

Part Overview

The S1GL MHG is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 400 V DC reverse voltage and 1 A average rectified current in a Sub SMA surface mount package. This component is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level.

Substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required, or when design specifications permit operation within the electrical parameters of equivalent alternatives. The S1GL MHG has documented substitute relationships with parametrically equivalent and similar manufacturer part numbers that maintain functional compatibility within specified electrical and thermal operating ranges.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 1 A	V
Reverse Recovery Time (trr)	1.8	µs
Current - Reverse Leakage @ Vr	5	µA @ 400 V
Capacitance @ Vr, F	9	pF @ 4V, 1MHz
Package / Case	DO-219AB	Sub SMA
Operating Temperature - Junction	-55 to 175	°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the S1GL MHG is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 400 V minimum
Package / Case: DO-219AB (Sub SMA compatible)
Mounting Type: Surface Mount
Technology: Standard recovery rectifier

Secondary Compatibility Factors:

Current - Average Rectified (Io): Equal or greater rating
Reverse Recovery Time (trr): 1.8 µs or faster
Operating Temperature Range: Minimum -55°C to 175°C junction temperature capability
RoHS and REACH compliance status

Substitute parts are grouped into two categories: parametrically equivalent parts that maintain identical electrical specifications, and similar manufacturer parts that operate within the same voltage and package class but with variations in current rating or thermal characteristics.

Parameter Comparison

Parameter	S1GL MHG (Main)	S1GL (Parametric Equivalent)	S07G-GS08 (Similar)	S07G-GS18 (Similar)
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Vishay General Semiconductor	Vishay General Semiconductor
Voltage - DC Reverse (Vr) (Max)	400 V	400 V	400 V	400 V
Current - Average Rectified (Io)	1 A	1 A	700 mA	700 mA
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A
Reverse Recovery Time (trr)	1.8 µs	1.8 µs	1.8 µs	1.8 µs
Current - Reverse Leakage @ Vr	5 µA @ 400 V	5 µA @ 400 V	10 µA @ 400 V	10 µA @ 200 V
Capacitance @ Vr, F	9 pF @ 4V, 1MHz	9 pF @ 4V, 1MHz	4 pF @ 4V, 1MHz	4 pF @ 4V, 1MHz
Package / Case	DO-219AB	DO-219AB	DO-219AB	DO-219AB
Operating Temperature - Junction	-55 to 175 °C	-55 to 175 °C	-55 to 150 °C	-55 to 150 °C
Product Status	Active	Not For New Designs	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

S1GL (Parametric Equivalent): This part maintains identical electrical specifications to the S1GL MHG across all critical parameters including voltage rating, current capacity, forward voltage, and reverse recovery time. However, the S1GL carries a "Not For New Designs" product status designation. Selection of this substitute is appropriate only for replacement, repair, or continuation of existing production where design changes are not feasible. The part is available in Tape & Reel packaging format with significantly higher inventory availability (30,400 pieces).

S07G-GS08 and S07G-GS18 (Similar Alternatives): These Vishay General Semiconductor parts are rated for 400 V reverse voltage and share the DO-219AB package format. Both parts are classified as Active product status and carry AEC-Q101 automotive qualification. The primary electrical difference is the reduced average rectified current rating of 700 mA compared to the 1 A rating of the S1GL MHG. These substitutes are suitable for applications where the circuit design permits operation at the lower current rating. The maximum junction temperature rating is 150°C, which is 25°C lower than the S1GL MHG specification. Selection of these parts requires verification that the application does not exceed 700 mA average rectified current and that the thermal environment maintains junction temperatures within the -55°C to 150°C range.

Frequently Asked Questions (FAQ)

Q: Can the S1GL substitute directly for the S1GL MHG in new designs?

A: The S1GL is electrically equivalent but carries a "Not For New Designs" product status. For new designs, the S1GL MHG (Active status) or the Vishay alternatives (S07G-GS08 or S07G-GS18, both Active status) are appropriate selections.

Q: What is the primary difference between the S1GL MHG and the S07G-GS08/S07G-GS18 parts?

A: The S07G-GS08 and S07G-GS18 are rated for 700 mA average rectified current, compared to 1 A for the S1GL MHG. Both maintain the same 400 V reverse voltage rating and DO-219AB package. The maximum junction temperature for the Vishay parts is 150°C versus 175°C for the S1GL MHG.

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

A: The S1GL MHG is specified with Sub SMA packaging. The S1GL substitute is available in Tape & Reel format. The S07G-GS08 and S07G-GS18 are specified as DO-219AB (SMF) in Tape & Reel format. All parts use the same DO-219AB physical package case.

Q: What compliance certifications apply to these substitute parts?

A: All listed parts are RoHS3 compliant and REACH unaffected. The S07G-GS08 and S07G-GS18 carry AEC-Q101 automotive qualification. All parts have Moisture Sensitivity Level 1 (Unlimited).

Q: Can the S07G-GS08 or S07G-GS18 be used in applications requiring 1 A current capacity?

A: No. The S07G-GS08 and S07G-GS18 are rated for maximum 700 mA average rectified current. Use of these parts in circuits requiring 1 A operation exceeds the component rating and is not permitted.

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

A: The S1GL MHG specifies 5 µA reverse leakage at 400 V. The S07G-GS08 specifies 10 µA at 400 V. The S07G-GS18 specifies 10 µA at 200 V. These differences may affect circuit performance in applications sensitive to leakage current characteristics.

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