S5G V7G Equivalent & Substitute Parts

Part Overview

The S5G V7G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 400 V DC reverse voltage and 5 A average rectified current in a DO-214AB (SMC) surface mount package. This part is discontinued at DiGi Electronics and classified as not recommended for new designs. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this rectifier specification.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	5	A
Voltage - Forward (Vf) (Max) @ If	1.15 @ 5 A	V
Reverse Recovery Time (trr)	1.5	µs
Current - Reverse Leakage @ Vr	10 @ 400 V	µA
Capacitance @ Vr, F	60 @ 4V, 1MHz	pF
Package / Case	DO-214AB, SMC	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the S5G V7G is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 5 A
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C to 150°C
Technology: Standard
RoHS Status: ROHS3 Compliant

Substitute Classification:

Parametric Equivalents (Full Electrical Match): Parts meeting all primary equivalence criteria with identical or superior electrical performance characteristics. These include S5G-E3/57T, S5G-E3/9AT, S5G-M3/57T, S5G-M3/9AT, S5GHE3_A/H, S5GHE3_A/I, and S5GHM3/57T from Vishay General Semiconductor - Diodes Division. All parametric equivalents are Active product status and ROHS3 compliant.

Functional Substitutes (Reduced Current Rating): The S3G-TP from Micro Commercial Co operates at 400 V reverse voltage but with reduced current rating of 3 A. This part is suitable only for applications where the 5 A current requirement can be reduced or where parallel configurations are implemented.

Packaging variants (Cut Tape vs. Tape & Reel) do not affect electrical substitution but impact procurement and assembly processes.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs]	Ir @ Vr [µA]	Package	Packaging Type	Product Status	Grade
S5G V7G	Taiwan Semiconductor Corporation	400	5	1.15 @ 5 A	1.5	10 @ 400 V	DO-214AB, SMC	Cut Tape (CT)	Discontinued	Standard
S5G-E3/57T	Vishay General Semiconductor - Diodes Division	400	5	1.15 @ 5 A	2.5	10 @ 400 V	DO-214AB, SMC	Cut Tape (CT)	Active	Standard
S5G-E3/9AT	Vishay General Semiconductor - Diodes Division	400	5	1.15 @ 5 A	2.5	10 @ 400 V	DO-214AB, SMC	Tape & Reel (TR)	Active	Standard
S5G-M3/57T	Vishay General Semiconductor - Diodes Division	400	5	1.15 @ 5 A	2.5	10 @ 400 V	DO-214AB, SMC	Tape & Reel (TR)	Active	Standard
S5G-M3/9AT	Vishay General Semiconductor - Diodes Division	400	5	1.15 @ 5 A	2.5	10 @ 400 V	DO-214AB, SMC	Tape & Reel (TR)	Active	Standard
S5GHE3_A/H	Vishay General Semiconductor - Diodes Division	400	5	1.15 @ 5 A	2.5	10 @ 400 V	DO-214AB, SMC	Cut Tape (CT)	Active	Automotive (AEC-Q101)
S5GHE3_A/I	Vishay General Semiconductor - Diodes Division	400	5	1.15 @ 5 A	2.5	10 @ 400 V	DO-214AB, SMC	Tape & Reel (TR)	Active	Automotive (AEC-Q101)
S5GHM3/57T	Vishay General Semiconductor - Diodes Division	400	5	1.15 @ 5 A	2.5	10 @ 400 V	DO-214AB, SMC	Tape & Reel (TR)	Active	Automotive (AEC-Q101)
S5GHM3_A/H	Vishay General Semiconductor - Diodes Division	400	5	1.15 @ 5 A	2.5	10 @ 400 V	DO-214AB, SMC	Tape & Reel (TR)	Active	Automotive (AEC-Q101)
S3G-TP	Micro Commercial Co	400	3	1.2 @ 3 A	—	10 @ 400 V	DO-214AB, SMC	Tape & Reel (TR)	Not For New Designs	Standard

Engineering Selection Recommendations

Primary Recommendation for Active Production:

For applications requiring direct replacement of the discontinued S5G V7G, select from the Vishay General Semiconductor - Diodes Division parametric equivalents: S5G-E3/57T, S5G-E3/9AT, S5G-M3/57T, or S5G-M3/9AT. All four parts are Active product status, ROHS3 compliant, and provide identical electrical specifications (400 V, 5 A, 1.15 V forward voltage) with superior reverse recovery time performance (2.5 µs vs. 1.5 µs).

Packaging Selection:

Cut Tape (CT) packaging: S5G-E3/57T (30,300 pcs available)
Tape & Reel (TR) packaging: S5G-E3/9AT (3,802 pcs), S5G-M3/57T (1,096 pcs), or S5G-M3/9AT (804 pcs)

Automotive Applications:

For automotive or safety-critical applications, select from the AEC-Q101 qualified variants: S5GHE3_A/H, S5GHE3_A/I, S5GHM3/57T, or S5GHM3_A/H. These parts maintain identical electrical specifications while providing automotive-grade qualification. S5GHM3_A/H offers the highest inventory availability (9,018 pcs) among automotive-qualified options.

Reduced Current Applications:

The S3G-TP (Micro Commercial Co) is suitable only for applications where the current requirement is 3 A or less. This part is classified as Not For New Designs and should not be selected for new product development.

Frequently Asked Questions (FAQ)

Q: Can S5G-E3/57T directly replace S5G V7G in existing designs?

A: Yes. Both parts meet the primary equivalence criteria: 400 V reverse voltage, 5 A average rectified current, DO-214AB package, and identical forward voltage (1.15 V @ 5 A). The S5G-E3/57T is Active product status with superior reverse recovery time performance.

Q: What is the difference between S5G-E3/57T and S5G-E3/9AT?

A: Both parts are electrically identical. The difference is packaging: S5G-E3/57T is supplied in Cut Tape (CT) format, while S5G-E3/9AT is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and procurement volume.

Q: Are the automotive-qualified variants (S5GHE3_A/H, S5GHM3_A/H) suitable for non-automotive applications?

A: Yes. Automotive-qualified parts meet or exceed standard industrial specifications. These variants are suitable for any application requiring the 400 V, 5 A rectifier specification and provide additional qualification assurance.

Q: Why is the reverse recovery time different between S5G V7G (1.5 µs) and Vishay equivalents (2.5 µs)?

A: Both values fall within the Standard Recovery classification (>500 ns, >200 mA). The difference reflects manufacturing process variations between manufacturers. Both are acceptable for standard rectification applications.

Q: Can S3G-TP be used as a substitute for S5G V7G?

A: S3G-TP is not a direct substitute. It operates at reduced current rating (3 A vs. 5 A) and is classified as Not For New Designs. Use only if application requirements permit 3 A operation or if parallel configurations are implemented.

Q: What is the inventory status for substitute parts?

A: S5GHM3_A/H (Vishay, automotive-qualified, Tape & Reel) has the highest availability at 9,018 pcs. S5G-E3/57T (Vishay, standard grade, Cut Tape) has 30,300 pcs available. All listed substitutes are in stock as new original components.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the compliance status of the original S5G V7G.

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