RSFGL M2G Equivalent & Substitute Parts

Part Overview

The RSFGL M2G is a general-purpose fast recovery diode rated for 400 V DC reverse voltage and 500 mA average rectified current in a Sub SMA surface mount package. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance parameters are required for applications where the primary part number is unavailable, discontinued, or when alternative packaging formats are necessary to meet production requirements.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	400 V
Current - Average Rectified (Io)	500 mA
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 500 mA
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	150 ns
Current - Reverse Leakage @ Vr	5 µA @ 400 V
Mounting Type	Surface Mount
Package / Case	DO-219AB
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the RSFGL M2G are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical electrical specifications across all critical parameters: 400 V reverse voltage rating, 500 mA average rectified current, 1.3 V forward voltage at 500 mA, 150 ns reverse recovery time, and DO-219AB package format. These parts differ only in packaging format (Tape & Reel or Cut Tape) or product status designation. Parametric equivalents include RSFGL and RSFGL RVG.

Similar Parts share the same 400 V reverse voltage rating and DO-219AB package but operate at higher current ratings (700 mA) and possess different speed characteristics (Standard Recovery >500ns versus Fast Recovery ≤500ns). These parts include S07G-GS08 and S07G-GS18 from Vishay General Semiconductor - Diodes Division. Similar parts are suitable for applications where the higher current capability and different recovery characteristics are acceptable within circuit design parameters.

Parameter Comparison

Parameter	RSFGL M2G	RSFGL	RSFGL RVG	S07G-GS08	S07G-GS18
Manufacturer	Taiwan Semiconductor Corporation	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	400 V
Current - Average Rectified (Io)	500 mA	500 mA	500 mA	700 mA	700 mA
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 500 mA	1.3 V @ 500 mA	1.3 V @ 500 mA	1.1 V @ 1 A	1.1 V @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)
Reverse Recovery Time (trr)	150 ns	150 ns	150 ns	1.8 µs	1.8 µs
Current - Reverse Leakage @ Vr	5 µA @ 400 V	5 µA @ 400 V	5 µA @ 400 V	10 µA @ 400 V	10 µA @ 200 V
Capacitance @ Vr, F	4pF @ 4V, 1MHz	4pF @ 4V, 1MHz	4pF @ 4V, 1MHz	4pF @ 4V, 1MHz	4pF @ 4V, 1MHz
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-219AB	DO-219AB	DO-219AB	DO-219AB	DO-219AB
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Product Status	Active	Not For New Designs	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Substitution (Parametric Equivalents):

RSFGL RVG is the recommended parametric equivalent for RSFGL M2G. Both parts maintain identical electrical specifications including 400 V reverse voltage, 500 mA average rectified current, 150 ns reverse recovery time, and 1.3 V forward voltage at 500 mA. RSFGL RVG carries Active product status and is supplied in Cut Tape packaging format. This part is suitable for new designs and production applications requiring the same electrical performance as the primary part number.

RSFGL is a parametric equivalent available in Tape & Reel packaging with identical electrical specifications. However, this part carries Not For New Designs product status and should be used only for legacy system maintenance or replacement applications where new design qualification is not required.

For Similar Performance (Higher Current Rating):

S07G-GS08 and S07G-GS18 are similar parts manufactured by Vishay General Semiconductor - Diodes Division. Both parts share the 400 V reverse voltage rating and DO-219AB package format but are rated for 700 mA average rectified current compared to the 500 mA rating of RSFGL M2G. These parts employ Standard Recovery characteristics (>500ns) rather than Fast Recovery (≤500ns). Selection of these parts is appropriate for applications where the higher current capability is beneficial and where the longer reverse recovery time does not compromise circuit performance. Both S07G-GS08 and S07G-GS18 carry Active product status and AEC-Q101 automotive qualification.

All substitute parts listed are RoHS3 compliant and operate across the -55°C to 150°C junction temperature range.

Frequently Asked Questions (FAQ)

Q: Can RSFGL RVG be used as a direct replacement for RSFGL M2G?

A: Yes. RSFGL RVG is a parametric equivalent with identical electrical specifications: 400 V reverse voltage, 500 mA average rectified current, 150 ns reverse recovery time, and 1.3 V forward voltage at 500 mA. The only difference is packaging format (Cut Tape versus the original format). Both parts are housed in DO-219AB packages and operate across -55°C to 150°C.

Q: What is the difference between RSFGL and RSFGL RVG?

A: RSFGL and RSFGL RVG are parametric equivalents with identical electrical specifications. The primary differences are packaging format (RSFGL is supplied in Tape & Reel; RSFGL RVG is supplied in Cut Tape) and product status (RSFGL is designated Not For New Designs; RSFGL RVG is Active). For new design applications, RSFGL RVG is the appropriate selection.

Q: Can S07G-GS08 or S07G-GS18 replace RSFGL M2G?

A: S07G-GS08 and S07G-GS18 are similar parts with the same 400 V reverse voltage rating and DO-219AB package. However, they differ in current rating (700 mA versus 500 mA) and speed characteristics (Standard Recovery >500ns versus Fast Recovery ≤500ns). These parts are suitable for applications where higher current capability is acceptable and where the longer reverse recovery time does not negatively impact circuit operation.

Q: What does "Fast Recovery" mean compared to "Standard Recovery"?

A: Fast Recovery diodes have reverse recovery times of 150 ns (RSFGL M2G), while Standard Recovery diodes have reverse recovery times of 1.8 µs (S07G-GS08, S07G-GS18). Fast Recovery diodes switch off more quickly, reducing switching losses and making them suitable for high-frequency applications. Standard Recovery diodes are appropriate for lower-frequency applications where the longer recovery time is not a limiting factor.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. RSFGL M2G, RSFGL, RSFGL RVG, S07G-GS08, and S07G-GS18 are all RoHS3 compliant and meet environmental regulatory requirements.

Q: What is the significance of the DO-219AB package?

A: DO-219AB is the package designation for all listed parts. This surface mount package format ensures mechanical and electrical compatibility across all substitute options. The Sub SMA designation indicates a sub-miniature package suitable for compact circuit board layouts.

Q: Which substitute part should be selected for new product designs?

A: For new designs requiring identical electrical performance to RSFGL M2G, RSFGL RVG is the recommended selection. It carries Active product status, maintains all electrical specifications of the primary part, and is available in Cut Tape packaging. For applications where higher current capability (700 mA) is beneficial, S07G-GS08 or S07G-GS18 are suitable alternatives with Active product status and AEC-Q101 automotive qualification.

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