RSFGL Equivalent & Substitute Parts Reference

Part Overview

The RSFGL is a general-purpose rectifier 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. The RSFGL operates across a junction temperature range of -55°C to 150°C with fast recovery characteristics suitable for standard switching applications.

Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support applications requiring alternative packaging configurations or enhanced current ratings while maintaining electrical compatibility within specified parameters.

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 @ 400 V	µA
Capacitance @ Vr, F	4 @ 4V, 1MHz	pF
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 rating, 500 mA average rectified current, 150 ns reverse recovery time, 1.3 V forward voltage at 500 mA, and DO-219AB package configuration. These parts differ only in packaging format (Tape & Reel or Cut Tape) and product status designation. Parametric equivalents are direct functional replacements with no performance trade-offs.

Similar Parts share the same 400 V reverse voltage rating and DO-219AB package but feature enhanced current ratings (700 mA) and different recovery characteristics. These parts operate with standard recovery speed (>500 ns) rather than fast recovery (≤500 ns) and exhibit higher reverse recovery time (1.8 µs). Similar parts are suitable for applications where the higher current capacity is beneficial and recovery speed differences are acceptable.

Key parameters determining substitution eligibility:

Voltage - DC Reverse (Vr) (Max): 400 V (required match)
Package / Case: DO-219AB (required match)
Mounting Type: Surface Mount (required match)
Operating Temperature Range: -55°C to 150°C (required match)
RoHS Status: ROHS3 Compliant (required match)

Parameter Comparison

Parameter	RSFGL (Main)	RSFGL (TR)	RSFGL RVG (CT)	S07G-GS08 (TR)	S07G-GS18 (TR)
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	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Standard Recovery >500ns, > 200mA	Standard Recovery >500ns, > 200mA
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	4 pF @ 4V, 1MHz	4 pF @ 4V, 1MHz	4 pF @ 4V, 1MHz	4 pF @ 4V, 1MHz	4 pF @ 4V, 1MHz
Package / Case	DO-219AB	DO-219AB	DO-219AB	DO-219AB	DO-219AB
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Not For New Designs	Active	Active	Active
Packaging Format	—	Tape & Reel (TR)	Cut Tape (CT)	Tape & Reel (TR)	Tape & Reel (TR)
Grade	—	—	—	Automotive	Automotive
Qualification	—	—	—	AEC-Q101	AEC-Q101

Engineering Selection Recommendations

RSFGL (Tape & Reel) is a parametric equivalent offering identical electrical performance to the main RSFGL part. This variant is designated as Not For New Designs, indicating it is retained for legacy system support and existing production lines only. Selection of this part is appropriate for sustaining engineering applications where design continuity is required.

RSFGL RVG (Cut Tape) is a parametric equivalent with Active product status, providing identical electrical specifications to the main RSFGL part. This variant is suitable for new design implementations and offers the same performance characteristics with Cut Tape packaging format. This part is recommended for new applications requiring the RSFGL electrical specification.

S07G-GS08 and S07G-GS18 are similar parts manufactured by Vishay General Semiconductor - Diodes Division. Both parts maintain the 400 V reverse voltage rating and DO-219AB package but provide enhanced current capacity (700 mA versus 500 mA). These parts operate with standard recovery speed characteristics rather than fast recovery. Both S07G-GS08 and S07G-GS18 carry Automotive grade designation and AEC-Q101 qualification, making them suitable for automotive applications. Selection of these parts is appropriate when higher current capacity is required and standard recovery speed performance is acceptable for the application.

All substitute parts maintain ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and REACH Unaffected status, ensuring regulatory alignment with the main RSFGL part.

Frequently Asked Questions (FAQ)

Q: Can RSFGL RVG be used as a direct replacement for RSFGL in new designs?

A: Yes. RSFGL RVG is a parametric equivalent with identical electrical specifications (400 V, 500 mA, 150 ns recovery time, 1.3 V forward voltage) and Active product status. The only difference is packaging format (Cut Tape versus standard). RSFGL RVG is suitable for new design implementations.

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

A: Both parts share 400 V reverse voltage rating and DO-219AB package. Key differences are: S07G-GS08 provides 700 mA current capacity (versus 500 mA), operates with standard recovery speed (1.8 µs versus 150 ns), and carries Automotive grade with AEC-Q101 qualification. S07G-GS08 is suitable for applications requiring higher current capacity where recovery speed differences are acceptable.

Q: Are S07G-GS08 and S07G-GS18 interchangeable?

A: S07G-GS08 and S07G-GS18 are functionally equivalent. Both provide 400 V, 700 mA, standard recovery characteristics, and AEC-Q101 qualification in DO-219AB package. The parts differ in reverse leakage current specification (10 µA @ 400 V for S07G-GS08 versus 10 µA @ 200 V for S07G-GS18). Selection between these parts depends on specific leakage current requirements at operating voltage.

Q: Why is RSFGL (Tape & Reel) marked as Not For New Designs?

A: RSFGL (Tape & Reel) is retained for legacy system support and existing production continuity. Taiwan Semiconductor Corporation designates this variant as Not For New Designs to direct new applications toward RSFGL RVG or other active alternatives. Existing systems using RSFGL (Tape & Reel) can continue operation without change.

Q: Can I use S07G-GS08 in an application designed for RSFGL?

A: S07G-GS08 is suitable if the application can accommodate the following differences: higher current capacity (700 mA), standard recovery speed (1.8 µs), and higher reverse leakage current (10 µA). The 400 V reverse voltage rating and DO-219AB package are identical. Applications sensitive to recovery speed or leakage current specifications require evaluation before substitution.

Q: What packaging formats are available for RSFGL equivalent parts?

A: RSFGL equivalents are available in two packaging formats: Tape & Reel (TR) and Cut Tape (CT). RSFGL RVG is supplied in Cut Tape format. RSFGL (Tape & Reel) is available but marked Not For New Designs. Packaging format selection depends on assembly process requirements and volume considerations.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. RSFGL, RSFGL RVG, S07G-GS08, and S07G-GS18 are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited) and REACH Unaffected status. All parts meet the same regulatory requirements.

Q: What is the significance of Automotive grade and AEC-Q101 qualification on S07G-GS08 and S07G-GS18?

A: Automotive grade designation and AEC-Q101 qualification indicate these parts meet automotive industry reliability and quality standards. These certifications are relevant for applications in automotive systems. RSFGL and RSFGL RVG do not carry automotive qualification and are suitable for general-purpose industrial and consumer applications.

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