A22-FW-10M

1. Overview

The Omron A22-FW-10M is a 22mm non-illuminated pushbutton switch from Omron's A22 series — a long-running industrial control component family offering round barrel-type pushbuttons in φ22/φ25 panel formats. The part number decodes as: A22 (non-illuminated 22mm series), F (flush/flat actuator), W (white), 10 (1 Normally Open contact), M (momentary action). It is a complete assembled unit (operational unit + switch unit included), not a bare actuator or contact block alone. The part has been officially discontinued/obsoleted by Omron (listed under 生産終了品 on fa.omron.co.jp and marked "Obsolete" by DigiKey and Ciiva), though secondary-market stock remains widely available globally.

DATA-QUALITY CONFIRMATION: The catalog entry (slug: omron-a22-fw-10m, subcategory: flush-momentary) is correctly categorized. The A22-FW-10M is definitively FLUSH (F), WHITE (W), 1NO (10), MOMENTARY (M), NON-ILLUMINATED. This is the correctly labeled flush part — unlike A22-T series products (#312/#313) which were mislabeled as flush. No data-quality flag required for this entry.

2. User Sentiment

No dedicated forum reviews or enthusiast community discussion was found for the A22-FW-10M specifically, which is typical for a utilitarian industrial pushbutton in this class. Distributor listings across DigiKey, Mouser (India, Canada, Singapore, Taiwan, South Africa, Ecuador), RS Online, and numerous secondary-market distributors reflect consistent product descriptions and widespread global adoption. The part's appearance on Omron's Japan discontinued-product page (fa.omron.co.jp 生産終了) and its "Obsolete" status at DigiKey and Ciiva suggest it has been superseded within Omron's lineup; buyers are advised to seek Omron-recommended replacement alternatives. Historical market pricing ranged from approximately USD $10–$20 depending on distributor and quantity.

3. Real-World Applications

The A22-FW-10M is a general-purpose industrial pushbutton suited for machine control panels, automation equipment, and industrial operator interface applications. Its φ22/φ25 mounting compatibility (with adapter ring) makes it interchangeable with the dominant 22mm panel-mount standard used across the industrial controls industry. It is used in factory automation, process control, conveyor systems, and similar industrial environments where a flush (recessed) actuator profile is preferred for safety or panel-space reasons. The flush profile reduces accidental actuation risk compared to projecting (T-style) actuators. The IP65 rating makes it appropriate for dusty or wet environments.

4. Technical Specifications

• Type: Standard non-illuminated pushbutton switch (complete unit — actuator head + contact block included)
• Series: Omron A22 (round barrel type, φ22/φ25)
• Actuator Style: Flush / flat (F) — round button, does NOT project beyond panel surface
• Actuator Color: White (W)
• Contact Configuration: SPST-NO — 1 Form A (1 Normally Open, 0 Normally Closed) — "10" in PN
• Switch Function: Momentary (M) — Off-Mom (spring-return, no latching)
• Current Rating: 10A AC/DC
• Voltage Rating: 110V AC (rated); also listed as 440VAC / 380VDC max in some datasheet versions; 24V DC (rated low-voltage); multi-voltage: 10A/24VAC, 10A/110VAC, 6A/220VAC, 2A/440VAC
• Panel Cutout: 22.3 +0.4 mm diameter (standard); 25 +0.5 mm diameter (with adapter ring)
• Head Diameter: 29.7mm
• Overall Length: 54.7mm (momentary model)
• Mounting: Panel mount, front installation, screw terminal
• Protection: IP65 (dust-tight, oil and water resistant) — non-illuminated models
• Operating Temperature: -20°C to +70°C
• Mechanical Life: 5,000,000 cycles
• Electrical Life: 500,000 cycles
• Standards/Certifications: EN60947-5-1 (IEC 60947-5-1 equivalent) confirmed from datasheet
• RoHS: Compliant (lead-free)
• Packaging: Bulk
• Part Status: Obsolete (discontinued by Omron; secondary-market stock available)
• Alternate PN: A22FW10M (no hyphens)

5. Ordering & Compatibility

The A22-FW-10M (DigiKey #Z1450-ND, LCSC #C19624676, RS #70251123) is widely stocked by secondary distributors including Mouser regional sites, RS Online, Radwell (with 2-year warranty), Hotenda, Heisener, Components-House, Micro-Semiconductor, and many Asian distributors. Pricing ranges from ~USD $10–$20 (secondary market) to ~$49 at some online sources (LCSC reference price ¥123.35 CNY). The switch unit is a complete assembly — contact blocks are included, not separate purchases. Compatible color variants in the same flush (F) non-illuminated family include: A22-FA (black), A22-FG (green), A22-FY (yellow), A22-FR (red), A22-FB (blue). Contact variants: A22-FW-11A (1NO+1NC), A22-FW-11M (1NO+1NC momentary), A22-FW-01M (1NC only), A22-FW-02M (NC). The A22-FW-10M can be mounted in 22mm or 25mm panel holes using Omron's adapter ring. Accepts open (fork) or closed (ring) crimp terminals as well as screw terminals.

6. Known Issues

The A22-FW-10M is officially discontinued/obsolete per Omron Japan's product database and multiple major distributors (DigiKey, Ciiva). Buyers sourcing this part should verify they are obtaining genuine Omron product through authorized channels, as the discontinued status increases counterfeit risk through secondary markets. The part has been widely available as new-old-stock through secondary distributors (Radwell, Heisener, Micro-Semiconductor report thousands of units in stock). No significant field reliability issues or failure modes were identified in available sources.