RS1GL M2G Equivalent & Substitute Parts

Part Overview

The RS1GL M2G is a general-purpose fast recovery diode manufactured by Taiwan Semiconductor Corporation, rated for 400V DC reverse voltage and 800mA 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 or exceeding critical electrical parameters including reverse voltage rating, current capacity, forward voltage characteristics, and recovery speed specifications, while maintaining compatible surface mount packaging and operating temperature ranges.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	800	mA
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 800 mA	V
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 to 150	°C
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical parameter alignment with the RS1GL M2G:

Parametric Equivalent Classification: Parts that match all critical electrical specifications including reverse voltage (400V), current rating (800mA or higher), forward voltage characteristics (1.3V or lower @ rated current), fast recovery speed (≤500ns), and reverse recovery time (150ns). These parts maintain identical or superior electrical performance and are interchangeable in circuit applications.

Similar Classification: Parts that match reverse voltage (400V) and operating temperature range but differ in current rating (700mA vs. 800mA), recovery speed classification (Standard Recovery >500ns vs. Fast Recovery ≤500ns), and reverse recovery time (1.8µs vs. 150ns). These parts are functionally similar but operate with different electrical characteristics and may require circuit evaluation before substitution.

Key parameters determining substitution eligibility:

Voltage - DC Reverse (Vr) (Max): 400V minimum
Current - Average Rectified (Io): 800mA or higher for parametric equivalents
Speed Classification: Fast Recovery ≤500ns for parametric equivalents
Reverse Recovery Time (trr): 150ns for parametric equivalents
Mounting Type: Surface Mount
Operating Temperature Range: -55°C to 150°C

Parameter Comparison

Parameter	RS1GL M2G (Main)	RS1GL (SMC)	RS1GL R3G (TSC)	S07G-GS08 (Vishay)	S07G-GS18 (Vishay)
Manufacturer	Taiwan Semiconductor Corporation	SMC Diode Solutions	Taiwan Semiconductor Corporation	Vishay General Semiconductor	Vishay General Semiconductor
Voltage - DC Reverse (Vr) (Max)	400 V	400 V	400 V	400 V	400 V
Current - Average Rectified (Io)	800 mA	1 A	800 mA	700 mA	700 mA
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 800 mA	1.3 V @ 1 A	1.3 V @ 800 mA	1.1 V @ 1 A	1.1 V @ 1 A
Speed Classification	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	10 pF @ 4V, 1MHz	10 pF @ 4V, 1MHz	10 pF @ 4V, 1MHz	4 pF @ 4V, 1MHz	4 pF @ 4V, 1MHz
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-219AB	SOD-123F	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
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Parametric Equivalent Substitutes:

RS1GL (SMC Diode Solutions) in SOD-123F package is a parametric equivalent offering 1A current capacity with identical 400V reverse voltage, 150ns reverse recovery time, and fast recovery speed classification. This part exceeds the 800mA requirement of the main part and maintains equivalent forward voltage characteristics. Package difference (SOD-123F vs. Sub SMA) requires PCB layout verification for mechanical fit.

RS1GL R3G (Taiwan Semiconductor Corporation) in Tape & Reel packaging is a direct parametric equivalent with identical electrical specifications and DO-219AB package compatibility. This part maintains all critical parameters including 800mA current rating, 150ns reverse recovery time, and fast recovery speed. Packaging format differs (Tape & Reel vs. Cut Tape) but electrical performance is identical.

Similar Substitutes:

S07G-GS08 and S07G-GS18 (Vishay General Semiconductor) are similar parts with matching 400V reverse voltage and operating temperature range. These parts are rated for 700mA current (below the 800mA specification), feature Standard Recovery classification (>500ns vs. ≤500ns), and exhibit 1.8µs reverse recovery time (vs. 150ns). Both parts carry AEC-Q101 automotive qualification and are available in DO-219AB package. These parts are functionally similar but operate with degraded recovery characteristics.

All substitute parts maintain RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Product status is Active for all listed alternatives, ensuring continued availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can RS1GL (SMC Diode Solutions) substitute for RS1GL M2G in all applications?

A: RS1GL from SMC Diode Solutions is a parametric equivalent with superior current rating (1A vs. 800mA) and identical electrical characteristics (400V, 150ns trr, fast recovery). Substitution is electrically valid. However, the package differs (SOD-123F vs. Sub SMA DO-219AB), requiring PCB footprint and layout verification before implementation.

Q: What is the difference between RS1GL R3G and RS1GL M2G?

A: RS1GL R3G and RS1GL M2G are parametrically identical with matching 400V reverse voltage, 800mA current rating, 1.3V forward voltage, 150ns reverse recovery time, and fast recovery speed. The primary difference is packaging format: RS1GL R3G is supplied in Tape & Reel format while RS1GL M2G is supplied in Cut Tape format. Electrical performance is identical.

Q: Are Vishay S07G-GS08 and S07G-GS18 direct substitutes for RS1GL M2G?

A: S07G-GS08 and S07G-GS18 are similar parts with matching 400V reverse voltage but differ in critical recovery characteristics. These Vishay parts feature Standard Recovery classification (>500ns) with 1.8µs reverse recovery time, compared to the RS1GL M2G fast recovery specification (≤500ns, 150ns trr). Current rating is also lower (700mA vs. 800mA). These parts are functionally similar but not parametric equivalents and require circuit evaluation before substitution.

Q: What packaging considerations apply when substituting RS1GL M2G?

A: RS1GL M2G uses DO-219AB (Sub SMA) surface mount package. The SMC RS1GL substitute uses SOD-123F package, which has different footprint dimensions and requires PCB layout modification. RS1GL R3G and Vishay S07G-GS08/S07G-GS18 all use DO-219AB package and are mechanically compatible without PCB changes.

Q: Which substitute offers the best current capacity margin?

A: RS1GL from SMC Diode Solutions provides the highest current capacity at 1A, exceeding the RS1GL M2G specification of 800mA by 200mA. This provides additional design margin for applications requiring higher current handling. All other substitutes (RS1GL R3G, S07G-GS08, S07G-GS18) are rated at or below 800mA.

Q: Are all substitute parts RoHS3 compliant?

A: All listed substitute parts (RS1GL from SMC, RS1GL R3G from TSC, S07G-GS08 and S07G-GS18 from Vishay) are RoHS3 compliant, matching the compliance status of the main RS1GL M2G part.

Q: What is the significance of reverse recovery time in selecting a substitute?

A: Reverse recovery time (trr) determines switching speed and affects circuit efficiency, particularly in high-frequency applications. RS1GL M2G specifies 150ns fast recovery. Parametric equivalents (RS1GL from SMC and RS1GL R3G) maintain this 150ns specification. Vishay S07G-GS08 and S07G-GS18 feature 1.8µs recovery time, which is significantly slower and may impact circuit performance in switching applications.

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