FOD2741AT Equivalent & Substitute Parts

Part Overview

The FOD2741AT is a transistor output optoisolator manufactured by onsemi, rated for 5000Vrms isolation voltage with a single channel configuration in 8-DIP packaging. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The FOD2741AT provides DC input with transistor output capability, supporting applications requiring galvanic isolation in industrial and consumer electronics.

Substiute Parts

FOD2741AT

onsemiIn Stock: 922FOD2741AT Datasheet

Current PartRFQ

FOD2741ATV

Fairchild SemiconductorIn Stock: 1430FOD2741ATV Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FOD2741AT is determined by strict equivalence across the following critical parameters:

• Isolation Voltage: 5000Vrms (mandatory match)
• Number of Channels: 1 (mandatory match)
• Output Type: Transistor (mandatory match)
• Current Transfer Ratio: 100% - 200% @ 10mA (mandatory match)
• Voltage - Output (Max): 30V (mandatory match)
• Current - Output / Channel: 50mA (mandatory match)
• Voltage - Forward (Vf) (Typ): 1.5V (Max) (mandatory match)
• Vce Saturation (Max): 400mV (mandatory match)
• Operating Temperature Range: -40°C ~ 85°C (mandatory match)
• Package / Case: 8-DIP (0.400", 10.16mm) (mandatory match)
• Input Type: DC (mandatory match)

The FOD2741ATV meets all substitution criteria and is classified as an active product, providing design continuity for applications currently using the obsolete FOD2741AT.

Parameter Comparison

Engineering Selection Recommendations

The FOD2741ATV is the direct equivalent substitute for the obsolete FOD2741AT. Both components share identical electrical specifications, isolation ratings, and package configurations. The FOD2741ATV maintains active product status with Fairchild Semiconductor, ensuring continued availability and supply chain stability. Both parts carry identical export classification (EAR99) and tariff codes, supporting regulatory compliance requirements. Selection of the FOD2741ATV provides functional equivalence with the advantage of active manufacturing status.

Frequently Asked Questions (FAQ)

Q: Can the FOD2741ATV be used as a direct replacement for the FOD2741AT?

A: Yes. The FOD2741ATV meets all electrical and mechanical specifications of the FOD2741AT, including isolation voltage (5000Vrms), current transfer ratio (100-200% @ 10mA), output voltage (30V max), output current (50mA), and 8-DIP package configuration. No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The FOD2741AT is classified as obsolete. The FOD2741ATV provides equivalent functionality with active product status, ensuring long-term availability and supply continuity.

Q: Are there any packaging differences between these parts?

A: Both components use identical 8-DIP (0.400", 10.16mm) through-hole packaging. PCB layout and mounting procedures remain unchanged.

Q: Do both parts support the same operating temperature range?

A: Yes. Both the FOD2741AT and FOD2741ATV operate across -40°C to 85°C, maintaining identical thermal specifications.

Q: Are there compliance or regulatory differences?

A: No. Both parts carry identical ECCN (EAR99) and HTSUS (8541.49.8000) classifications, supporting equivalent regulatory compliance.