A3SA-90G1-12SW Equivalent & Substitute Parts

Part Overview

The A3SA-90G1-12SW is an Omron Automation and Safety pushbutton switch featuring DPDT (Double Pole Double Throw) circuitry with illuminated panel mount design. This component is classified as Obsolete, necessitating identification of active equivalent models to maintain system functionality and ensure continued component availability for new installations and maintenance applications.

Substiute Parts

A3SA-90G1-12SW

Omron Automation and SafetyIn Stock: 1052A3SA-90G1-12SW Datasheet

Current PartRFQ

A3SA-90G1-12EW

Omron Automation and SafetyIn Stock: 1003A3SA-90G1-12EW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A3SA-90G1-12SW is determined by strict equivalence across the following critical parameters:

• Circuit configuration (DPDT)
• Switch function (On-Mom momentary operation)
• Current and voltage ratings (100mA AC/DC, 125V AC, 30V DC)
• Mounting interface (Panel Mount, Snap-In with 16.20mm square cutout)
• Actuator geometry and color (Square button, White)
• Illumination specification (LED, White, 12V nominal)
• Termination type (Quick Connect - 0.110" / 2.8mm)
• Environmental operating range (-10°C ~ 50°C)
• Mechanical and electrical life ratings

The A3SA-90G1-12EW meets all substitution criteria as an active product within the same A3S series, with identical electrical, mechanical, and interface specifications. The primary distinction is illumination voltage specification: the substitute part is rated for 12 VDC operation, whereas the original part specifies 12 VAC/DC compatibility.

Parameter Comparison

Engineering Selection Recommendations

The A3SA-90G1-12EW is the direct equivalent for the obsolete A3SA-90G1-12SW. As an active product within the same A3S series, it provides continuity for applications requiring DPDT illuminated pushbutton switches with identical electrical performance and mechanical interface specifications.

Selection of the A3SA-90G1-12EW is appropriate for new designs and replacement applications where the original part is no longer available. The illumination voltage specification difference (12 VDC versus 12 VAC/DC) must be evaluated against the specific power supply architecture of the target application to ensure compatibility with existing control circuits.

Frequently Asked Questions (FAQ)

Q: Can the A3SA-90G1-12EW directly replace the A3SA-90G1-12SW in existing installations?

A: Yes, the A3SA-90G1-12EW provides direct mechanical and electrical substitution. The panel cutout dimensions, snap-in mounting interface, quick connect termination, and all electrical ratings are identical. Verify that the illumination power supply in your application provides 12 VDC to ensure proper LED operation.

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

A: The original A3SA-90G1-12SW supports both 12 VAC and 12 VDC illumination supply. The substitute A3SA-90G1-12EW is specified for 12 VDC operation. If your control circuit supplies 12 VAC exclusively, compatibility must be confirmed with the application design.

Q: Are the mechanical and electrical life ratings identical between these parts?

A: Yes. Both parts are rated for 1,000,000 mechanical cycles and 100,000 electrical cycles under the specified operating conditions.

Q: What are the panel mounting requirements for the A3SA-90G1-12EW?

A: The part requires a square panel cutout of 16.20mm x 16.20mm. The snap-in mounting mechanism secures the switch without additional fasteners. Quick connect terminals (0.110" / 2.8mm) provide the electrical interface.

Q: Is the A3SA-90G1-12EW suitable for the full operating temperature range of the original part?

A: Yes. The A3SA-90G1-12EW maintains the same operating temperature range of -10°C to 50°C as the original A3SA-90G1-12SW.