Omron A3SA-90E1-12SW Equivalent & Substitute Parts

Part Overview

The Omron A3SA-90E1-12SW 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 12 VAC/DC. The part is classified as obsolete, making identification of active equivalent models necessary for ongoing procurement and system maintenance.

Substiute Parts

A3SA-90E1-12SW

Omron Automation and SafetyIn Stock: 972A3SA-90E1-12SW Datasheet

Current PartRFQ

A3SA-90E1-12EW

Omron Automation and SafetyIn Stock: 836A3SA-90E1-12EW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A3SA-90E1-12SW 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 primary distinction between the main part and its substitute relates to illumination voltage specification and product status classification.

Parameter Comparison

Engineering Selection Recommendations

The A3SA-90E1-12EW serves as the active equivalent to the obsolete A3SA-90E1-12SW. Both components maintain identical electrical and mechanical specifications across all critical parameters. The A3SA-90E1-12EW is the recommended selection for new designs and replacement procurement due to its active product status and continued manufacturer support.

The illumination voltage specification difference (12 VAC/DC versus 12 VDC) reflects the substitute part's refined specification. Applications requiring AC illumination capability should evaluate circuit design compatibility with the 12 VDC specification of the substitute part.

Frequently Asked Questions (FAQ)

Q: Can the A3SA-90E1-12EW directly replace the A3SA-90E1-12SW in existing installations?

A: Yes. Both parts share identical panel cutout dimensions, termination style, electrical ratings, and mechanical specifications. Direct substitution is supported from a physical and electrical standpoint.

Q: What is the significance of the illumination voltage difference between the two parts?

A: The main part specifies 12 VAC/DC illumination capability, while the substitute specifies 12 VDC only. Applications currently using AC illumination must confirm compatibility with DC-only operation or source alternative components.

Q: Why is the A3SA-90E1-12SW classified as obsolete?

A: Product status reflects manufacturer lifecycle decisions. The A3SA-90E1-12EW represents the active continuation within the A3S series for this functional configuration.

Q: Are there any mechanical compatibility concerns when substituting these parts?

A: No. Both components feature identical panel mount snap-in installation, square 16.20mm x 16.20mm cutout dimensions, and quick connect 0.110" termination. Panel modifications are not required.

Q: What are the electrical performance boundaries for both parts?

A: Both parts operate within identical parameters: 100mA current rating at 125V AC or 30V DC, with 1,000,000 mechanical cycles and 100,000 electrical cycles rated life.