Omron A3SA-90E1-24SW Equivalent & Substitute Parts

Part Overview

The Omron A3SA-90E1-24SW is an illuminated pushbutton switch with SPDT circuit configuration, designed for panel mount snap-in installation. This component features a white square button actuator with white LED illumination powered at 24 VAC/DC. The part is classified as obsolete, making identification of active equivalent models essential for ongoing system maintenance and new design implementations.

Substiute Parts

A3SA-90E1-24SW

Omron Automation and SafetyIn Stock: 842A3SA-90E1-24SW Datasheet

Current PartRFQ

A3SA-90E1-24EW

Omron Automation and SafetyIn Stock: 1059A3SA-90E1-24EW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A3SA-90E1-24SW is determined by strict equivalence across the following critical parameters:

• Circuit configuration (SPDT)
• Switch function (On-Mom)
• Current rating (100mA AC/DC)
• Voltage ratings (125V AC / 30V DC)
• Mounting type (Panel Mount, Snap-In)
• Actuator type and color (Square Button, White)
• Illumination type and color (LED, White)
• Termination style (Quick Connect - 0.110")
• Panel cutout dimensions (Square - 16.20mm x 16.20mm)
• Operating temperature range (-10°C ~ 50°C)
• Mechanical and electrical life ratings

The A3SA-90E1-24EW qualifies as a direct substitute based on full parameter alignment with the main part, with the distinction that it maintains active product status within the Omron A3S series.

Parameter Comparison

Engineering Selection Recommendations

The A3SA-90E1-24EW is the direct equivalent for the obsolete A3SA-90E1-24SW. Both components share identical electrical and mechanical specifications within the Omron A3S series. The primary distinction is product status: the A3SA-90E1-24EW maintains active availability, ensuring supply chain continuity and long-term support.

For applications currently using the A3SA-90E1-24SW, transition to the A3SA-90E1-24EW provides functional equivalence with no design modifications required. The illumination voltage specification differs only in notation (24 VAC/DC versus 24 VDC), reflecting operational compatibility across both AC and DC supply configurations in the substitute model.

Frequently Asked Questions (FAQ)

Q: Can the A3SA-90E1-24EW directly replace the A3SA-90E1-24SW without circuit modifications?

A: Yes. Both components share identical electrical ratings (100mA at 125V AC / 30V DC), circuit configuration (SPDT), and mechanical specifications. Panel cutout dimensions and termination styles are identical, enabling direct substitution.

Q: What is the significance of the illumination voltage specification difference?

A: The main part specifies 24 VAC/DC while the substitute specifies 24 VDC. Both operate at the same nominal voltage level. The substitute notation indicates DC operation, which is compatible with AC/DC supply systems used in the original design.

Q: Are there any mechanical compatibility concerns?

A: No. Both components feature identical panel mount snap-in installation, square 16.20mm x 16.20mm cutout dimensions, and quick connect 0.110" (2.8mm) termination. Physical installation is identical.

Q: Why is the A3SA-90E1-24SW classified as obsolete?

A: Product obsolescence reflects Omron's lifecycle management. The A3SA-90E1-24EW remains in active production within the same A3S series, providing continued availability for equivalent functionality.

Q: Are the mechanical and electrical life ratings identical?

A: Yes. Both components specify 1,000,000 mechanical cycles and 100,000 electrical cycles, ensuring equivalent operational durability and reliability.