RSFGL Equivalent & Substitute Parts Reference

Part Overview

The RSFGL is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, 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 with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter ranges. Alternative packaging formats and product status variations are documented to support procurement flexibility and design continuity.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	500	mA
Voltage - Forward (Vf) (Max) @ If	1.3 @ 500 mA	V
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 400 V
Package / Case	DO-219AB	—
Mounting Type	Surface Mount	—
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 and mechanical compatibility:

Parametric Equivalents maintain identical electrical specifications across all critical parameters: 400 V reverse voltage, 500 mA average rectified current, 1.3 V forward voltage at 500 mA, 150 ns reverse recovery time, and 5 µA reverse leakage current at 400 V. These parts differ only in packaging format (Tape & Reel or Cut Tape) or product status designation. Parametric equivalents are direct functional replacements.

Similar Parts share the same package type (DO-219AB) and reverse voltage rating (400 V) but operate at higher current ratings (700 mA) with different recovery characteristics. These parts are suitable for applications where the higher current capacity does not create design conflicts and where the different speed classification (Standard Recovery vs. Fast Recovery) is acceptable.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf @ If	trr	Ir @ Vr	Package	Packaging Format	Product Status
RSFGL MHG	Taiwan Semiconductor Corporation	400 V	500 mA	1.3 V @ 500 mA	150 ns	5 µA @ 400 V	DO-219AB	—	Active
RSFGL	Taiwan Semiconductor Corporation	400 V	500 mA	1.3 V @ 500 mA	150 ns	5 µA @ 400 V	DO-219AB	Tape & Reel (TR)	Not For New Designs
RSFGL RVG	Taiwan Semiconductor Corporation	400 V	500 mA	1.3 V @ 500 mA	150 ns	5 µA @ 400 V	DO-219AB	Cut Tape (CT)	Active
S07G-GS08	Vishay General Semiconductor - Diodes Division	400 V	700 mA	1.1 V @ 1 A	1.8 µs	10 µA @ 400 V	DO-219AB	Tape & Reel (TR)	Active
S07G-GS18	Vishay General Semiconductor - Diodes Division	400 V	700 mA	1.1 V @ 1 A	1.8 µs	10 µA @ 200 V	DO-219AB	Tape & Reel (TR)	Active

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalents):

RSFGL RVG is the recommended parametric equivalent for new designs. This part maintains all electrical specifications identical to RSFGL MHG while offering Active product status and Cut Tape packaging format suitable for automated assembly processes.

RSFGL (Tape & Reel format) is a parametric equivalent but carries Not For New Designs status. This designation indicates the part is available for existing production support only and should not be selected for new circuit designs.

For Higher Current Applications (Similar Parts):

S07G-GS08 and S07G-GS18 are suitable alternatives when application requirements permit operation at 700 mA average rectified current. Both parts maintain the 400 V reverse voltage rating and DO-219AB package compatibility. These Vishay components carry AEC-Q101 automotive qualification and Active product status. The trade-off is increased reverse recovery time (1.8 µs vs. 150 ns), which affects switching performance in high-frequency applications.

Compliance Considerations:

All listed parts maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity level, and REACH Unaffected status. Selection between parametric equivalents does not introduce compliance risk.

Frequently Asked Questions (FAQ)

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

A: Yes. RSFGL RVG is a parametric equivalent with identical electrical specifications. The difference is packaging format (Cut Tape vs. standard) and Active product status. Both are suitable for the same circuit applications.

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

A: Both parts are parametric equivalents with identical electrical performance. RSFGL is supplied in Tape & Reel format and carries Not For New Designs status. RSFGL RVG is supplied in Cut Tape format and carries Active status. For new designs, RSFGL RVG is the appropriate selection.

Q: Can S07G-GS08 or S07G-GS18 replace RSFGL MHG in existing designs?

A: Substitution is possible only if the application circuit can accommodate the higher current rating (700 mA vs. 500 mA) and the different recovery time (1.8 µs vs. 150 ns). The 400 V reverse voltage rating and DO-219AB package are compatible. Applications requiring fast recovery characteristics should not use these Vishay alternatives.

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

A: This designation indicates the part is available for production support of existing designs only. New circuit designs should select RSFGL RVG or other Active status alternatives to ensure long-term supply continuity and manufacturer support.

Q: Are all listed parts ROHS3 compliant?

A: Yes. All parts in this reference maintain ROHS3 compliance and are suitable for applications with environmental compliance requirements.

Q: What is the difference in reverse recovery time between RSFGL and the Vishay alternatives?

A: RSFGL has a reverse recovery time of 150 ns (Fast Recovery classification). S07G-GS08 and S07G-GS18 have reverse recovery times of 1.8 µs (Standard Recovery classification). This difference affects switching speed in high-frequency rectification circuits. Applications sensitive to switching losses should retain the RSFGL specification.

Q: Can packaging format differences affect circuit performance?

A: Packaging format (Tape & Reel, Cut Tape, or standard) affects procurement and assembly processes but does not alter electrical performance. All formats deliver identical component specifications to the circuit.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message