FOD2711 Equivalent & Substitute Parts

Part Overview

The FOD2711 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 through-hole package with a maximum output voltage of 30V and output current capability of 50mA per channel.

The FOD2711 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance and repairs.

Substiute Parts

FOD2711

onsemiIn Stock: 2103FOD2711 Datasheet

Current PartRFQ

FOD2711AS

Fairchild SemiconductorIn Stock: 5266FOD2711AS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FOD2711 is determined by strict equivalence across the following critical parameters:

• Voltage - Isolation: 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: -40°C ~ 85°C (mandatory match)
• Input Type: DC (mandatory match)

The FOD2711AS qualifies as a direct substitute based on complete electrical parameter equivalence. The primary difference is the mounting type and package configuration: FOD2711AS uses surface mount (8-SMD, Gull Wing) versus the through-hole 8-DIP package of the FOD2711. This distinction requires design and PCB layout modification but does not affect electrical performance or functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The FOD2711AS is electrically equivalent to the FOD2711 and qualifies as a direct substitute based on complete parameter alignment. The FOD2711AS carries Active product status, ensuring ongoing availability and supply chain support, whereas the FOD2711 is Obsolete.

Selection between these parts depends on design constraints:

For through-hole PCB designs requiring the original form factor, the FOD2711 remains the appropriate choice if inventory is available. For new designs or redesigns, the FOD2711AS is the recommended selection due to its Active status and surface-mount configuration, which aligns with modern manufacturing practices.

Both parts comply with identical regulatory classifications (ECCN: EAR99) and environmental standards (REACH Unaffected).

Frequently Asked Questions (FAQ)

Q: Can FOD2711AS replace FOD2711 in existing designs?

A: FOD2711AS is electrically equivalent to FOD2711. However, substitution requires PCB layout modification due to package differences: FOD2711 uses through-hole 8-DIP mounting, while FOD2711AS uses surface-mount 8-SMD configuration. Electrical performance and functional compatibility are maintained.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by equivalence in isolation voltage (5000Vrms), channel count (1), output type (Transistor), current transfer ratio (100-200% @ 10mA), maximum output voltage (30V), output current (50mA), forward voltage (1.5V Max), saturation voltage (400mV), and operating temperature range (-40°C ~ 85°C).

Q: Why is FOD2711 classified as Obsolete?

A: FOD2711 is listed as Obsolete by the manufacturer. FOD2711AS, with Active status, represents the current equivalent offering and is recommended for new designs and long-term supply chain planning.

Q: Are there any compliance or certification differences between FOD2711 and FOD2711AS?

A: Both parts share identical regulatory classifications (ECCN: EAR99) and environmental compliance status (REACH Unaffected). No compliance or certification differences exist.

Q: What is the primary design consideration when substituting FOD2711 with FOD2711AS?

A: The primary consideration is package type: FOD2711 is through-hole (8-DIP), while FOD2711AS is surface-mount (8-SMD, Gull Wing). PCB layout and assembly process modifications are required. Electrical specifications remain identical.