FOD2743CTV Equivalent & Substitute Parts

Part Overview

The FOD2743CTV is an optoisolator with transistor output manufactured by onsemi, designed for applications requiring galvanic isolation up to 5000Vrms. This component features a single channel configuration in an 8-DIP package and is rated for 50mA output current with a maximum output voltage of 70V. The part is currently listed as obsolete, making identification of suitable substitutes essential for ongoing system support and new design implementations.

Substiute Parts

FOD2743CTV

onsemiIn Stock: 962FOD2743CTV Datasheet

Current PartRFQ

FOD2743BTV

onsemiIn Stock: 1550FOD2743BTV Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FOD2743CTV is determined by strict equivalence across the following critical parameters:

• Voltage isolation rating: 5000Vrms
• Number of channels: 1
• Output type: Transistor
• Current transfer ratio range: 50% to 100% @ 1mA
• Maximum output voltage: 70V
• Maximum output current: 50mA per channel
• Input type: DC
• Package type: 8-DIP (0.400", 10.16mm)
• Mounting configuration: Through Hole

The FOD2743BTV meets all these criteria and qualifies as a direct substitute. The primary distinction between the main part and its substitute is product status and packaging format, not electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

The FOD2743BTV is the appropriate substitute for the obsolete FOD2743CTV. Both components share identical electrical specifications and mechanical packaging, ensuring direct functional equivalence in circuit applications. The FOD2743BTV carries Active product status, providing supply continuity and ongoing manufacturer support. The FOD2743BTV is RoHS3 compliant, meeting current environmental and regulatory requirements for new designs and production environments. Both parts maintain REACH Unaffected status and EAR99 export classification, ensuring consistent compliance across supply chains.

Frequently Asked Questions (FAQ)

Q: Can FOD2743BTV replace FOD2743CTV in existing designs? A: Yes. The FOD2743BTV is electrically and mechanically equivalent to the FOD2743CTV. All critical parameters including isolation voltage, current transfer ratio, output specifications, and package dimensions are identical. Direct substitution is supported without circuit modification.

Q: What is the primary reason to switch from FOD2743CTV to FOD2743BTV? A: The FOD2743CTV is obsolete, while the FOD2743BTV maintains Active product status. This ensures continued availability, manufacturer support, and compliance with current regulatory standards.

Q: Are there packaging differences between these parts? A: The FOD2743BTV is supplied in Tube packaging, while the FOD2743CTV packaging format is not specified. Both use the same 8-DIP (0.400", 10.16mm) physical package for mounting and circuit integration.

Q: Do these parts have different compliance certifications? A: Both parts maintain REACH Unaffected status and EAR99 export classification. The FOD2743BTV is RoHS3 compliant, providing enhanced environmental compliance for new production environments.

Q: Is the current transfer ratio identical between these parts? A: Yes. Both the FOD2743CTV and FOD2743BTV specify a current transfer ratio of 50% minimum to 100% maximum at 1mA input current, ensuring equivalent performance in isolation and signal transmission applications.