S1GL M2G Equivalent & Substitute Parts

Part Overview

The S1GL M2G 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 (MSL 1).

Substitute parts become necessary when the S1GL M2G reaches end-of-life status, experiences supply constraints, or when design requirements permit operation with alternative electrical or mechanical specifications. The substitute parts listed maintain compatibility with the original application through equivalent or superior electrical characteristics and identical or compatible packaging configurations.

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 M2G is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 400 V
Current - Average Rectified (Io): Must equal or exceed 1 A
Package / Case: Must be DO-219AB (Sub SMA or equivalent)
Mounting Type: Must be Surface Mount
Technology: Must be Standard recovery diode

Secondary Compatibility Factors:

Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A or lower
Reverse Recovery Time (trr): 1.8 µs or faster
Operating Temperature Range: Must accommodate -55°C to 175°C junction temperature
RoHS and REACH Compliance: Must maintain ROHS3 Compliant status

The substitute parts S1GL, S07G-GS08, and S07G-GS18 meet these criteria with the following considerations:

S1GL: Parametric equivalent with identical electrical specifications; differs only in packaging format (Tape & Reel) and product status (Not For New Designs)
S07G-GS08 and S07G-GS18: Similar manufacturer parts with reduced average rectified current (700 mA vs. 1 A); suitable for applications where current requirement does not exceed 700 mA

Parameter Comparison

Parameter	S1GL M2G	S1GL	S07G-GS08	S07G-GS18
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
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
Grade	Standard	Standard	Automotive	Automotive
Qualification	Not specified	Not specified	AEC-Q101	AEC-Q101

Engineering Selection Recommendations

S1GL (Taiwan Semiconductor Corporation)

The S1GL is a parametric equivalent to the S1GL M2G with identical electrical specifications and operating temperature range. The primary distinction is packaging format (Tape & Reel versus individual packaging) and product status designation (Not For New Designs). This part is suitable for replacement in existing production runs or maintenance applications where supply of the S1GL M2G is unavailable. The "Not For New Designs" status indicates this part is in mature phase; however, it remains functionally equivalent for direct substitution.

S07G-GS08 and S07G-GS18 (Vishay General Semiconductor - Diodes Division)

Both S07G-GS08 and S07G-GS18 are similar manufacturer parts with reduced average rectified current rating (700 mA versus 1 A). These parts are suitable substitutes only for applications where the actual circuit current requirement does not exceed 700 mA. Both parts carry Active product status and AEC-Q101 automotive qualification. The S07G-GS08 and S07G-GS18 feature lower capacitance (4 pF versus 9 pF) and higher reverse leakage current (10 µA versus 5 µA), which may affect performance in sensitive analog circuits. Operating temperature range is reduced to -55°C to 150°C compared to the S1GL M2G specification of -55°C to 175°C.

Selection Criteria:

Use S1GL for direct replacement when supply constraints affect S1GL M2G availability
Use S07G-GS08 or S07G-GS18 only when circuit design permits 700 mA maximum current and -55°C to 150°C operating range
Verify application current requirements do not exceed substitute part ratings before implementation

Frequently Asked Questions (FAQ)

Q: Can the S1GL be used as a direct replacement for the S1GL M2G?

A: Yes. The S1GL is a parametric equivalent with identical electrical specifications (400 V, 1 A, 1.1 V forward voltage, 1.8 µs recovery time). The primary difference is packaging format (Tape & Reel) and product status (Not For New Designs). Electrical performance is equivalent for direct substitution.

Q: What is the key limitation when using S07G-GS08 or S07G-GS18 as substitutes?

A: The average rectified current rating is reduced from 1 A to 700 mA. These parts are suitable only for applications where actual circuit current does not exceed 700 mA. Additionally, the maximum operating junction temperature is reduced from 175°C to 150°C.

Q: Are all substitute parts in the same package?

A: Yes. All parts listed (S1GL M2G, S1GL, S07G-GS08, S07G-GS18) use the DO-219AB package with Sub SMA or SMF supplier device package designation. All are surface mount components with identical footprint compatibility.

Q: Do the substitute parts maintain RoHS and REACH compliance?

A: Yes. All substitute parts are ROHS3 Compliant and REACH Unaffected, matching the compliance status of the S1GL M2G.

Q: What is the difference between S07G-GS08 and S07G-GS18?

A: Both parts have identical electrical specifications and ratings. The primary difference is the reverse leakage current measurement condition: S07G-GS08 specifies 10 µA @ 400 V, while S07G-GS18 specifies 10 µA @ 200 V. Both parts carry AEC-Q101 automotive qualification and Active product status.

Q: Can I use a substitute part with lower current rating in a 1 A application?

A: No. Using S07G-GS08 or S07G-GS18 (700 mA rated) in an application requiring 1 A operation will cause the diode to exceed its maximum current specification, resulting in thermal stress and potential failure. Substitute parts must be selected based on actual circuit current requirements.

Q: What is the significance of the "Not For New Designs" status on the S1GL?

A: This designation indicates the part is in mature production phase and may have limited future availability. While electrically equivalent and suitable for replacement in existing designs, it is not recommended for new product development. For new designs, S07G-GS08 or S07G-GS18 (both Active status) are preferred if current requirements permit.

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