A3SA-90G1-24SW Equivalent & Substitute Parts

Part Overview

The A3SA-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 alternatives for new designs and ongoing system maintenance. The switch is designed for standard industrial control applications requiring illuminated feedback and reliable switching performance.

Substiute Parts

A3SA-90G1-24SW

Omron Automation and SafetyIn Stock: 1097A3SA-90G1-24SW Datasheet

Current PartRFQ

A3SA-90G1-24EW

Omron Automation and SafetyIn Stock: 981A3SA-90G1-24EW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A3SA-90G1-24SW 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 type and panel cutout dimensions (Panel Mount, Snap-In, 16.20mm square)
• Actuator type and color (Square Button, White)
• Illumination specifications (LED, White, 24V nominal)
• Termination style (Quick Connect - 0.110")
• Mechanical and electrical life ratings
• Operating temperature range

The A3SA-90G1-24EW qualifies as a direct substitute based on identical electrical specifications, mechanical compatibility, and functional equivalence within the A3S series.

Parameter Comparison

Engineering Selection Recommendations

The A3SA-90G1-24EW is the recommended substitute for the obsolete A3SA-90G1-24SW. Both components are manufactured by Omron Automation and Safety within the same A3S series and maintain identical electrical, mechanical, and functional specifications. The primary distinction is product status: the A3SA-90G1-24EW is Active, ensuring continued availability and supply chain support for new installations and replacements.

The illumination voltage specification differs slightly between the two parts: the original specifies 24 VAC/DC while the substitute specifies 24 VDC. This distinction reflects standard industry practice for LED illumination in modern pushbutton switches and does not affect functional compatibility in applications utilizing DC illumination sources.

Frequently Asked Questions (FAQ)

Q: Can the A3SA-90G1-24EW directly replace the A3SA-90G1-24SW in existing installations?

A: Yes. Both components share identical panel cutout dimensions (16.20mm square), termination style (Quick Connect - 0.110"), electrical ratings (100mA, 125V AC, 30V DC), and mechanical specifications (1,000,000 cycle mechanical life). Physical and electrical compatibility is confirmed.

Q: What is the significance of the illumination voltage difference (24 VAC/DC vs. 24 VDC)?

A: The original part supports both AC and DC illumination at 24V nominal. The substitute specifies 24 VDC, reflecting standard LED illumination design. Applications using DC illumination sources will operate identically. Applications requiring AC illumination should verify compatibility with the substitute's DC specification.

Q: Why is the A3SA-90G1-24SW classified as Obsolete?

A: Obsolete status indicates the part is no longer in active production. The A3SA-90G1-24EW represents the current active equivalent within the A3S series, ensuring long-term availability and supply chain continuity.

Q: Are there any mechanical or dimensional differences between these parts?

A: No. Both components feature identical panel mount snap-in design, square button actuator, white LED illumination, and 16.20mm square panel cutout dimensions. Installation procedures and panel modifications remain unchanged.

Q: What is the inventory status for these parts?

A: The A3SA-90G1-24SW has 1,015 pieces in stock (Obsolete status). The A3SA-90G1-24EW has 969 pieces in stock (Active status). For new designs and long-term applications, the A3SA-90G1-24EW is the appropriate selection.