S3B V7G Equivalent & Substitute Parts

Part Overview

The S3B V7G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100 V DC reverse voltage and 3 A average rectified current in a DO-214AB surface mount package. This component is classified as discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement requirements. The part operates across a junction temperature range of -55°C to 150°C and complies with ROHS3 standards.

Substiute Parts

S3B V7G

Taiwan Semiconductor CorporationIn Stock: 859S3B V7G Datasheet

Current PartRFQ

S3B

Diotec SemiconductorIn Stock: 3941S3B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the S3B V7G is determined by electrical and mechanical parameter equivalence within the rectifier diode category. The critical parameters governing substitution are:

• Voltage Rating: 100 V DC reverse voltage (Vr) maximum
• Current Rating: 3 A average rectified current (Io)
• Package Type: DO-214AB surface mount configuration (SMC)
• Recovery Characteristics: Standard recovery with reverse recovery time of 1.5 µs
• Compliance: ROHS3 compliance and surface mount technology

The S3B part number from Diotec Semiconductor meets all specified electrical and mechanical requirements and shares identical voltage, current, and package specifications with the Taiwan Semiconductor Corporation original. Both parts operate within compatible temperature ranges and maintain standard recovery speed classifications.

Parameter Comparison

Engineering Selection Recommendations

The S3B from Diotec Semiconductor is a direct functional equivalent for the discontinued S3B V7G from Taiwan Semiconductor Corporation. Both components share identical electrical ratings for voltage (100 V), current (3 A), and recovery time (1.5 µs), with matching DO-214AB surface mount packaging.

The Diotec S3B variant demonstrates superior reverse leakage characteristics (5 µA versus 10 µA at 100 V), indicating lower standby current consumption. The operating temperature range of the Diotec part (-50°C to 150°C) is narrower than the original (-55°C to 150°C) by 5°C at the lower bound; this difference is non-critical for most industrial and commercial applications operating above -50°C.

Both parts maintain ROHS3 compliance and standard recovery speed classification. The Diotec S3B is currently in active production status with confirmed inventory availability, making it the appropriate selection for new designs and replacement procurement where the Taiwan Semiconductor S3B V7G is no longer obtainable.

Frequently Asked Questions (FAQ)

Q: Can the Diotec S3B directly replace the Taiwan Semiconductor S3B V7G in existing designs?

A: Yes. Both parts share identical voltage ratings (100 V), current ratings (3 A), reverse recovery time (1.5 µs), and DO-214AB surface mount packaging. Electrical performance and physical compatibility are equivalent for standard rectification applications.

Q: What is the significance of the lower reverse leakage current in the Diotec part?

A: The Diotec S3B exhibits 5 µA reverse leakage at 100 V compared to 10 µA in the original part. This represents improved leakage performance and results in lower standby power consumption, which is beneficial in battery-powered or low-power applications.

Q: Does the narrower operating temperature range of the Diotec part affect compatibility?

A: The Diotec S3B operates from -50°C to 150°C, compared to -55°C to 150°C for the original. The 5°C difference at the lower temperature limit does not affect applications operating within standard industrial temperature ranges (-40°C to 85°C) or extended commercial ranges (-25°C to 70°C). Applications requiring operation below -50°C require evaluation against specific design requirements.

Q: Are both parts RoHS compliant?

A: Yes. Both the Taiwan Semiconductor S3B V7G and the Diotec S3B are ROHS3 compliant, meeting lead-free and hazardous substance restrictions for electronic components.

Q: What is the package designation DO-214AB, and is it interchangeable with SMC?

A: DO-214AB and SMC (Surface Mount Case) refer to the same physical package format. Both designations describe a surface mount rectifier diode package with identical footprint and lead configuration. The terms are used interchangeably in component specifications.

Q: Why is the Taiwan Semiconductor S3B V7G discontinued?

A: Product discontinuation reflects manufacturer production decisions and market demand. The Diotec S3B provides equivalent electrical and mechanical performance with active production status, ensuring long-term availability for design support and procurement.