Equivalent & Substitute Parts for A3SA-90E1-12SY

Part Overview

The A3SA-90E1-12SY is an Omron Automation and Safety pushbutton switch featuring SPDT circuit configuration with standard illumination. This component is designed for panel mount, snap-in installation with a square yellow actuator and yellow LED illumination at 12 VAC/DC. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity for new designs and ongoing maintenance applications.

Substiute Parts

A3SA-90E1-12SY

Omron Automation and SafetyIn Stock: 829A3SA-90E1-12SY Datasheet

Current PartRFQ

A3SA-90E1-12EY

Omron Automation and SafetyIn Stock: 707A3SA-90E1-12EY Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A3SA-90E1-12SY 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, Yellow)
• Illumination type and color (LED, Yellow)
• 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. The substitute part A3SA-90E1-12EY maintains all electrical and mechanical parameters while transitioning from obsolete to active product status.

Parameter Comparison

Engineering Selection Recommendations

The A3SA-90E1-12EY is the direct equivalent for the obsolete A3SA-90E1-12SY. Both components are manufactured by Omron Automation and Safety within the A3S series and maintain identical electrical and mechanical specifications. The substitute part is currently in active production status, ensuring availability for new designs and replacement applications.

The illumination voltage specification differs between the two parts: the original specifies 12 VAC/DC while the substitute specifies 12 VDC. This distinction reflects the substitute's design optimization for DC-only illumination operation. Applications requiring AC illumination capability should evaluate this parameter against circuit requirements.

All other parameters—circuit configuration, current and voltage ratings, mounting dimensions, actuator characteristics, and lifecycle ratings—remain unchanged, confirming functional and physical interchangeability within the specified operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the A3SA-90E1-12EY directly replace the A3SA-90E1-12SY in existing installations?

A: Yes, the A3SA-90E1-12EY is a direct functional equivalent. Both components share identical SPDT circuit configuration, 100mA current rating, 125V AC and 30V DC voltage ratings, panel mount snap-in mounting, square yellow actuator, yellow LED illumination, quick connect termination, and panel cutout dimensions. The substitute maintains the same operating temperature range and lifecycle ratings.

Q: What is the difference in illumination voltage between these two parts?

A: The A3SA-90E1-12SY supports 12 VAC/DC illumination, while the A3SA-90E1-12EY supports 12 VDC illumination only. Applications using AC illumination sources should confirm compatibility with the substitute's DC-only specification.

Q: Are the panel cutout dimensions identical?

A: Yes, both parts require a square panel cutout of 16.20mm x 16.20mm, confirming mechanical interchangeability in existing panel installations.

Q: What is the reason for the product status change from obsolete to active?

A: The A3SA-90E1-12SY is classified as obsolete, while the A3SA-90E1-12EY is in active production. The substitute part ensures continued availability and supply chain reliability for applications requiring this switch configuration.

Q: Are the termination styles compatible?

A: Yes, both parts use identical Quick Connect - 0.110" (2.8mm) termination, ensuring compatibility with existing wiring harnesses and connector systems.