Equivalent & Substitute Parts for A3SJ-90G1-24SW

Part Overview

The A3SJ-90G1-24SW 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

A3SJ-90G1-24SW

Omron Automation and SafetyIn Stock: 701A3SJ-90G1-24SW Datasheet

Current PartRFQ

A3SJ-90G1-24EW

Omron Automation and SafetyIn Stock: 1004A3SJ-90G1-24EW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A3SJ-90G1-24SW is determined by strict equivalence across the following critical parameters:

Circuit configuration (DPDT), switch function (On-Mom momentary operation), current rating (100mA AC/DC), voltage ratings (125V AC / 30V DC), mounting type (Panel Mount, Snap-In), actuator geometry (Rectangular Button), illumination specification (LED White), termination style (Quick Connect 0.110"), and panel cutout dimensions (22.40mm x 16.20mm).

The primary distinction between the main part and its substitute relates to illumination voltage specification and product status. The A3SJ-90G1-24EW operates with 24 VDC illumination voltage, whereas the original part accepts 24 VAC/DC. Both components maintain identical electrical performance, mechanical durability, and physical form factor.

Parameter Comparison

Engineering Selection Recommendations

The A3SJ-90G1-24EW serves as the direct active equivalent for the obsolete A3SJ-90G1-24SW. Both components are manufactured by Omron Automation and Safety within the A3S series and maintain identical electrical and mechanical specifications across all critical parameters.

The A3SJ-90G1-24EW is the preferred selection for new designs and replacement applications due to its active product status, ensuring long-term availability and supply chain continuity. The illumination voltage specification difference (24 VDC versus 24 VAC/DC) reflects the substitute's design optimization for DC-only operation, which remains compatible with standard 24 VDC control circuits commonly deployed in industrial automation systems.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between A3SJ-90G1-24SW and A3SJ-90G1-24EW?

A: The A3SJ-90G1-24EW is the active production equivalent of the obsolete A3SJ-90G1-24SW. The illumination voltage specification differs: the original accepts 24 VAC/DC, while the substitute operates on 24 VDC. All other electrical, mechanical, and dimensional parameters remain identical.

Q: Can the A3SJ-90G1-24EW be used as a direct replacement in existing installations?

A: Yes, the A3SJ-90G1-24EW is a direct substitute. It maintains identical panel cutout dimensions (22.40mm x 16.20mm), termination style (Quick Connect 0.110"), circuit configuration (DPDT), and electrical ratings (100mA, 125V AC, 30V DC). Physical installation and electrical integration are equivalent.

Q: Are there any compatibility considerations for the illumination voltage change?

A: The A3SJ-90G1-24EW requires 24 VDC illumination supply. If the original installation used 24 VAC for illumination, the power supply must be verified to provide 24 VDC. The switch's main circuit contacts (DPDT, 100mA, 125V AC / 30V DC) remain unchanged and compatible with existing control circuits.

Q: What is the inventory status for these components?

A: The A3SJ-90G1-24SW (obsolete) has 636 units in stock. The A3SJ-90G1-24EW (active) has 989 units in stock, providing superior availability for new procurement.

Q: Are the mechanical and electrical life ratings identical?

A: Yes. Both components specify 1,000,000 mechanical cycles and 100,000 electrical cycles, with identical operating temperature ranges (-10°C ~ 50°C) and IP00 ingress protection ratings.