Equivalent & Substitute Parts for Omron A3SJ-90C1-12SW Pushbutton Switch

Part Overview

The Omron A3SJ-90C1-12SW is a DPDT illuminated pushbutton switch designed for panel mount, snap-in installation. This component features a rectangular white button actuator with white LED illumination powered at 12 VAC/DC. The part is classified as obsolete, necessitating identification of active equivalent models to maintain supply chain continuity for new designs and ongoing production requirements.

Substiute Parts

A3SJ-90C1-12SW

Omron Automation and SafetyIn Stock: 1204A3SJ-90C1-12SW Datasheet

Current PartRFQ

A3SJ-90C1-12EW

Omron Automation and SafetyIn Stock: 983A3SJ-90C1-12EW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A3SJ-90C1-12SW is determined by strict equivalence across the following critical parameters:

• Circuit configuration (DPDT)
• Switch function (On-Mom)
• Current and voltage ratings (3A AC / 2A DC; 125V AC / 30V DC)
• Mounting type and panel cutout dimensions (Panel Mount, Snap-In; 22.40mm x 16.20mm)
• Actuator type and color (Rectangular Button, White)
• Illumination specifications (LED, White, 12V nominal)
• Termination style (Quick Connect - 0.110")
• Operating temperature range (-10°C ~ 50°C)
• Mechanical and electrical life ratings (1,000,000 / 100,000 cycles)
• Ingress protection rating (IP00)

The Omron A3SJ-90C1-12EW meets all these criteria and is designated as the manufacturer-recommended substitute.

Parameter Comparison

Engineering Selection Recommendations

The A3SJ-90C1-12EW is the direct equivalent for the obsolete A3SJ-90C1-12SW. Both components are manufactured by Omron Automation and Safety within the A3S series and maintain identical electrical, mechanical, and dimensional specifications. The primary distinction is product status: the A3SJ-90C1-12EW is active and available for procurement, while the A3SJ-90C1-12SW is obsolete.

The illumination voltage specification differs slightly in notation (12 VAC/DC versus 12 VDC); however, both designations indicate compatibility with 12-volt DC supply circuits. This difference reflects updated documentation standards rather than functional divergence.

For new designs and production continuity, the A3SJ-90C1-12EW should be specified. Existing installations using the A3SJ-90C1-12SW may be retrofitted with the A3SJ-90C1-12EW without circuit modification or mechanical redesign.

Frequently Asked Questions (FAQ)

Q: Can the A3SJ-90C1-12EW be used as a direct replacement for the A3SJ-90C1-12SW?

A: Yes. Both components share identical circuit configuration (DPDT), current and voltage ratings (3A AC / 2A DC; 125V AC / 30V DC), mounting specifications (Panel Mount, Snap-In), panel cutout dimensions (22.40mm x 16.20mm), actuator design (Rectangular Button, White), illumination characteristics (LED, White, 12V), and termination style (Quick Connect - 0.110"). No circuit modifications or mechanical adjustments are required.

Q: What is the difference between the illumination voltage specifications listed as 12 VAC/DC and 12 VDC?

A: The A3SJ-90C1-12SW specifies 12 VAC/DC illumination voltage, while the A3SJ-90C1-12EW specifies 12 VDC. Both designations indicate the component operates with 12-volt DC supply. The notation difference reflects documentation updates and does not indicate functional incompatibility.

Q: Are the panel cutout dimensions identical between these two models?

A: Yes. Both the A3SJ-90C1-12SW and A3SJ-90C1-12EW require a rectangular panel cutout of 22.40mm x 16.20mm. Existing panel installations designed for the obsolete model will accommodate the substitute without modification.

Q: What is the mechanical and electrical life expectancy for the A3SJ-90C1-12EW?

A: The A3SJ-90C1-12EW is rated for 1,000,000 mechanical cycles and 100,000 electrical cycles, matching the specifications of the A3SJ-90C1-12SW.

Q: Is the A3SJ-90C1-12EW available for immediate procurement?

A: The A3SJ-90C1-12EW is classified as active product status, indicating current availability through Omron Automation and Safety distribution channels.