FOD2743ASD Equivalent & Substitute Parts

Part Overview

The FOD2743ASD 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 with DC input and transistor output, suitable for signal isolation in industrial and power management circuits.

The FOD2743ASD is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and maintenance applications.

Substiute Parts

FOD2743ASD

onsemiIn Stock: 3253FOD2743ASD Datasheet

Current PartRFQ

FOD2743BSD

onsemiIn Stock: 1965FOD2743BSD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FOD2743ASD are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Voltage - Isolation: 5000Vrms
• Number of Channels: 1
• Output Type: Transistor
• Voltage - Output (Max): 70V
• Current - Output / Channel: 50mA
• Current Transfer Ratio range: 50% to 100% @ 1mA
• Operating Temperature range: -40°C ~ 85°C
• Package / Case: 8-SMD, Gull Wing
• Mounting Type: Surface Mount

The FOD2743BSD qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility across all critical parameters.

Parameter Comparison

Engineering Selection Recommendations

The FOD2743BSD is the direct substitute for the FOD2743ASD. Both components share identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: the FOD2743ASD is obsolete while the FOD2743BSD is active.

The FOD2743BSD is ROHS3 compliant and maintains the same REACH unaffected status as the original part. For new designs or component replenishment, the FOD2743BSD should be selected to ensure long-term availability and compliance with current manufacturing standards.

Frequently Asked Questions (FAQ)

Q: Can FOD2743BSD replace FOD2743ASD in existing designs? A: Yes. The FOD2743BSD is electrically and mechanically identical to the FOD2743ASD across all specified parameters, including isolation voltage, output characteristics, current transfer ratio, and package configuration.

Q: What is the difference between FOD2743ASD and FOD2743BSD? A: The primary difference is product status. The FOD2743ASD is obsolete, while the FOD2743BSD is active. Additionally, the FOD2743BSD is supplied in Tape & Reel packaging and is ROHS3 compliant. Electrical and mechanical specifications are identical.

Q: Are there packaging differences between these parts? A: Both parts use the same 8-SMD, Gull Wing package and mounting type. The FOD2743ASD packaging specification is not detailed in available data, while the FOD2743BSD is supplied in Tape & Reel format. The physical component package remains identical.

Q: Is the FOD2743BSD suitable for high-temperature applications? A: Both parts operate across the same temperature range of -40°C to 85°C. Applications requiring operation outside this range require alternative component selection.

Q: What compliance certifications apply to the FOD2743BSD? A: The FOD2743BSD is ROHS3 compliant and REACH unaffected. Both parts carry the same ECCN (EAR99) and HTSUS (8541.49.8000) classifications.