Omron A3SJ-90C1-05SW Equivalent & Substitute Parts

Part Overview

The Omron A3SJ-90C1-05SW is a DPDT pushbutton switch with illuminated panel mount design and snap-in installation. This component features a white rectangular button actuator with white LED illumination at 5 VDC nominal voltage. The switch is rated for 3A AC at 125V and 2A DC at 30V, with quick connect 0.110" (2.8mm) termination.

The A3SJ-90C1-05SW is classified as obsolete. Substitute parts are necessary to maintain system functionality and ensure continued availability for new designs and field replacements.

Substiute Parts

A3SJ-90C1-05SW

Omron Automation and SafetyIn Stock: 1155A3SJ-90C1-05SW Datasheet

Current PartRFQ

A3SJ-90C1-05EW

Omron Automation and SafetyIn Stock: 1045A3SJ-90C1-05EW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A3SJ-90C1-05SW is determined by strict equivalence across all electrical and mechanical parameters. The following criteria must be met for a part to serve as a direct substitute:

• Identical circuit configuration (DPDT)
• Identical switch function (On-Mom)
• Identical current and voltage ratings (3A AC/125V, 2A DC/30V)
• Identical mounting type (Panel Mount, Snap-In)
• Identical actuator type and color (Rectangular Button, White)
• Identical illumination specification (LED, White, 5 VDC)
• Identical termination style (Quick Connect - 0.110")
• Identical panel cutout dimensions (22.40mm x 16.20mm)
• Identical operating temperature range (-10°C to 50°C)
• Identical mechanical and electrical life ratings

Parameter Comparison

Engineering Selection Recommendations

The Omron A3SJ-90C1-05EW is the manufacturer-recommended substitute for the obsolete A3SJ-90C1-05SW. Both components are from the same A3S series and maintain identical electrical specifications, mechanical dimensions, and performance characteristics. The primary distinction is product status: the A3SJ-90C1-05EW is active and currently available, while the A3SJ-90C1-05SW is obsolete.

For new designs and field replacements, the A3SJ-90C1-05EW provides functional equivalence with the advantage of current manufacturer support and ongoing availability. All electrical parameters, mounting configurations, and panel cutout dimensions remain unchanged, ensuring direct compatibility in existing installations.

Frequently Asked Questions (FAQ)

Q: Can the A3SJ-90C1-05EW be used as a direct replacement for the A3SJ-90C1-05SW?

A: Yes. The A3SJ-90C1-05EW meets all electrical and mechanical specifications of the A3SJ-90C1-05SW. Both components share identical circuit configuration (DPDT), current ratings (3A AC/125V, 2A DC/30V), mounting type (Panel Mount, Snap-In), panel cutout dimensions (22.40mm x 16.20mm), and performance characteristics. Installation requires no modifications.

Q: What is the difference between these two part numbers?

A: The A3SJ-90C1-05EW is the active production equivalent of the obsolete A3SJ-90C1-05SW. All functional and mechanical parameters are identical. The part number change reflects the manufacturer's product line update.

Q: Are the panel cutout dimensions identical?

A: Yes. Both the A3SJ-90C1-05SW and A3SJ-90C1-05EW require a rectangular panel cutout of 22.40mm x 16.20mm. No panel modifications are necessary when substituting between these parts.

Q: Do the electrical ratings match?

A: Yes. Both components are rated for 3A AC at 125V and 2A DC at 30V. Operating temperature range, mechanical life (1,000,000 cycles), and electrical life (100,000 cycles) are identical.

Q: What is the illumination specification?

A: Both parts feature white LED illumination at 5 VDC nominal voltage with white rectangular button actuators. Illumination characteristics are identical.