S4G R7 Equivalent & Substitute Parts

Part Overview

The S4G R7 is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 400 V DC reverse voltage and 4 A average rectified current in a surface mount DO-214AB (SMC) package. This component is designed for standard recovery applications requiring reliable rectification in power supply and conversion circuits.

The S4G R7 has been discontinued at DiGi Electronics. Identifying equivalent and substitute parts ensures design continuity and maintains supply chain flexibility for applications requiring this diode specification.

Substiute Parts

S4G R7

Taiwan Semiconductor CorporationIn Stock: 1168S4G R7 Datasheet

Current PartRFQ

S4G V7G

Taiwan Semiconductor CorporationIn Stock: 1441S4G V7G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the S4G R7 is determined by strict equivalence across the following critical parameters:

• Voltage Rating: DC reverse voltage must equal 400 V
• Current Rating: Average rectified current must equal 4 A
• Forward Voltage Drop: Maximum forward voltage at rated current must equal 1.15 V @ 4 A
• Reverse Recovery Time: Must equal 1.5 µs
• Reverse Leakage Current: Must equal 10 µA @ 400 V
• Package: Must be DO-214AB (SMC) surface mount
• Technology: Must be Standard recovery type
• Compliance: Must maintain ROHS3 compliance and REACH unaffected status

The S4G V7G meets all these criteria and is classified as a parametric equivalent. Both parts share the same base product number (S4G) and are manufactured by Taiwan Semiconductor Corporation with identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The S4G V7G is a direct parametric equivalent to the S4G R7. Both parts are discontinued at DiGi Electronics but remain available through inventory channels. Selection between these parts should be based on the following factors:

Packaging Availability: The S4G V7G is supplied in Cut Tape (CT) and Digi-Reel® packaging formats, whereas the S4G R7 packaging format is not specified. Verify packaging requirements for your assembly process.

Inventory Status: The S4G V7G has higher current inventory (1427 Pcs) compared to the S4G R7 (1097 Pcs), which may influence lead time and supply reliability.

Compliance Certification: Both parts maintain identical compliance status: ROHS3 compliant, REACH unaffected, and EAR99 classification. Either part satisfies regulatory requirements for equivalent applications.

Electrical Performance: All electrical parameters are identical, ensuring drop-in compatibility in circuit designs rated for 400 V, 4 A rectification with standard recovery characteristics.

Frequently Asked Questions (FAQ)

Q: Can the S4G V7G replace the S4G R7 in existing designs?

A: Yes. The S4G V7G is a parametric equivalent with identical voltage rating (400 V), current rating (4 A), forward voltage drop (1.15 V @ 4 A), reverse recovery time (1.5 µs), and package (DO-214AB SMC). All electrical and mechanical specifications match exactly.

Q: What is the difference between the S4G R7 and S4G V7G?

A: The parts share identical electrical specifications and are both manufactured by Taiwan Semiconductor Corporation. The primary difference is packaging format: the S4G V7G is available in Cut Tape (CT) and Digi-Reel® formats. Both are discontinued at DiGi Electronics.

Q: Are there any temperature or compliance differences between these parts?

A: No. Both parts operate across the same junction temperature range (-55°C to 150°C) and maintain identical compliance certifications: ROHS3 compliant, REACH unaffected, and EAR99 classification.

Q: What does "parametric equivalent" mean for these diodes?

A: Parametric equivalence means the S4G V7G meets or exceeds all specified electrical parameters of the S4G R7, including voltage rating, current capacity, forward voltage, reverse recovery time, leakage current, and capacitance. The parts are functionally interchangeable in applications designed for these specifications.

Q: Can I use these diodes in high-frequency switching applications?

A: These are standard recovery diodes with a reverse recovery time of 1.5 µs. They are designed for standard rectification applications. Verify that the recovery time specification meets your circuit's switching frequency requirements before selection.

Q: What is the significance of the DO-214AB (SMC) package?

A: DO-214AB is a surface mount package standard for rectifier diodes. SMC denotes the specific form factor. Both the S4G R7 and S4G V7G use this identical package, ensuring mechanical and electrical compatibility with existing PCB layouts and assembly processes.

Q: Are moisture sensitivity considerations important for these parts?

A: Both parts have Moisture Sensitivity Level (MSL) 1, classified as unlimited. This indicates minimal moisture absorption risk and no special storage or handling requirements beyond standard component care.