PS2911-1-F3-AX Equivalent and Substitute Parts

Part Overview

The PS2911-1-F3-AX is a 2500Vrms optoisolator with transistor output in a 4-SMD flat lead package. This device features single-channel isolation and 40mA output current capability, designed for applications requiring high voltage isolation between circuit stages. The main part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. Multiple manufacturing variants from Renesas Electronics Corporation provide direct functional equivalence with identical electrical characteristics.

Substiute Parts

PS2911-1-F3-AX

CELIn Stock: 20195PS2911-1-F3-AX Datasheet

Current PartRFQ

PS2911-1-AX

Renesas Electronics CorporationIn Stock: 2243PS2911-1-AX Datasheet

DirectRFQ

PS2911-1-F3-AX

Renesas Electronics CorporationIn Stock: 20115PS2911-1-F3-AX Datasheet

Parametric EquivalentRFQ

PS2911-1-F3-K-AX

Renesas Electronics CorporationIn Stock: 841PS2911-1-F3-K-AX Datasheet

Parametric EquivalentRFQ

PS2911-1-V-AX

Renesas Electronics CorporationIn Stock: 1519PS2911-1-V-AX Datasheet

Parametric EquivalentRFQ

PS2911-1-V-F3-AX

Renesas Electronics CorporationIn Stock: 4583PS2911-1-V-F3-AX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PS2911-1-F3-AX is based on maintaining strict electrical and mechanical equivalence across the following parameters:

Critical Substitution Parameters:

• Voltage - Isolation: 2500Vrms (non-negotiable)
• Number of Channels: 1
• Output Type: Transistor
• Voltage - Output (Max): 40V
• Current - Output / Channel: 40mA
• Package / Case: 4-SMD, Flat Leads
• Operating Temperature Range: -55°C to 100°C
• Input Type: DC

Allowable Parameter Variations:

• Current Transfer Ratio (Min): 100% or 200% @ 1mA (both satisfy minimum performance requirements)
• Packaging format (Cut Tape, Tape & Reel, or Strip) does not affect functional equivalence
• Product status changes (Active vs. Discontinued) are driven by manufacturer lifecycle decisions

All identified substitutes maintain identical isolation voltage, output current capacity, and thermal operating range. Variants with higher minimum current transfer ratio (200% vs. 100%) provide enhanced performance without compromising compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: PS2911-1-F3-AX (Renesas Active)

This variant is the direct equivalent of the discontinued PS2911-1-F3-AX. It maintains active product status at Renesas Electronics Corporation, indicating ongoing manufacturing support and availability. ROHS3 compliance and REACH unaffected status are maintained. This part is suitable for new designs and provides long-term supply chain stability.

Secondary Recommendation: PS2911-1-V-F3-AX (Renesas Active)

This part is functionally equivalent with identical electrical specifications and ROHS3 compliance. Product status is Active. The difference lies in packaging format (Tape & Reel vs. Cut Tape), which is a procurement consideration without affecting functional performance.

Alternative Consideration: PS2911-1-F3-K-AX (Renesas Active)

This variant features a higher minimum current transfer ratio (200% vs. 100% @ 1mA) while maintaining all other electrical parameters. It is Active status and ROHS3 compliant. This option provides enhanced performance margin and is compatible for direct substitution.

Not Recommended for New Designs:

PS2911-1-AX carries "Not For New Designs" status despite meeting all electrical specifications. PS2911-1-V-AX is available but the Active variants with explicit product status are preferred for ongoing applications.

Frequently Asked Questions (FAQ)

Q: Can PS2911-1-F3-K-AX be used as a direct replacement for PS2911-1-F3-AX?

A: Yes. Both parts maintain identical isolation voltage (2500Vrms), output current (40mA), operating temperature range (-55°C to 100°C), and package type (4-SMD, Flat Leads). The PS2911-1-F3-K-AX features a higher minimum current transfer ratio (200% vs. 100% @ 1mA), which enhances performance without affecting compatibility.

Q: What is the difference between the Cut Tape, Tape & Reel, and Strip packaging formats?

A: Packaging format affects delivery method and handling for automated assembly. Cut Tape (CT) & Digi-Reel provides individual tape sections. Tape & Reel (TR) delivers the full reel for high-volume assembly. Strip format packages components in a strip configuration. All formats contain identical components with no functional differences.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance, meeting environmental and material restriction requirements across all markets.

Q: Which substitute has the highest inventory availability?

A: The PS2911-1-F3-AX (Renesas Active variant) provides 20,100 pieces in stock, matching the original part's availability. PS2911-1-V-F3-AX follows with 4,553 pieces, and PS2911-1-AX offers 2,201 pieces in Strip format.

Q: Can I substitute a part with "Not For New Designs" status?

A: Parts designated "Not For New Designs" (PS2911-1-AX) may be used in existing production or maintenance applications where component inventory exists. For new design implementation, Active status parts (PS2911-1-F3-AX Renesas, PS2911-1-V-F3-AX, PS2911-1-F3-K-AX) are the appropriate selection.

Q: Do current transfer ratio differences affect circuit design?

A: Both 100% and 200% minimum current transfer ratio variants maintain the same maximum (400% @ 1mA) and operate within identical voltage, current, and timing parameters. Component selection between these variants depends on circuit design margins and application requirements, not compatibility constraints.