Omron A16-CJM Equivalent & Substitute Parts

Part Overview

The Omron A16-CJM is a configurable switch component body for the A16 series pushbutton switches with rectangular actuator design. This part functions as the base case assembly for momentary pushbutton applications and requires separate contact blocks, illumination sources, and lenses for complete functionality. The A16-CJM is classified as obsolete, necessitating identification of compatible substitute illumination and accessory components from the active M16 series product line to maintain system functionality and ensure continued availability.

Key Parameters

Parameter	Value
Manufacturer Part Number	A16-CJM
Manufacturer	Omron Automation and Safety
Series	A16
Category	Configurable Switch Components
Product Type	Pushbutton Switch Body
Actuator Type	Pushbutton, Rectangular
Operation Type	Momentary
Panel Cutout Dimensions	16mm (Round)
Product Status	Obsolete
RoHS Compliance	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

The A16-CJM requires illumination source components to complete its functionality. Substitute parts are drawn from the Omron M16 series, which maintains mechanical and electrical compatibility with the A16 series through identical panel cutout dimensions (0.94" x 0.71" / 24.00mm x 18.00mm) and rectangular lens geometry. Substitution is determined by the following parameters:

Lamp color (Green or Red)
Operating voltage (110V AC/DC or 220V AC/DC)
Lens transparency (Diffused)
Termination style (Quick Connect or standard)
Ingress protection rating (IP40)

All substitute parts are active products with current manufacturing status and RoHS compliance, ensuring long-term availability and regulatory conformance.

Parameter Comparison

Parameter	A16-CJM	M16-JG-T1	M16-JG-T1-S	M16-JG-T2-S	M16-JR-T1	M16-JR-T1-S	M16-JR-T2-S
Manufacturer	Omron	Omron	Omron	Omron	Omron	Omron	Omron
Series	A16	M16	M16	M16	M16	M16	M16
Product Type	Switch Body	LED Indicator	LED Indicator	LED Indicator	LED Indicator	LED Indicator	LED Indicator
Panel Cutout Shape	Round	Rectangle	Rectangle	Rectangle	Rectangle	Rectangle	Rectangle
Panel Cutout Dimensions	16mm	0.94" x 0.71" (24.00mm x 18.00mm)	0.94" x 0.71" (24.00mm x 18.00mm)	0.94" x 0.71" (24.00mm x 18.00mm)	0.94" x 0.71" (24.00mm x 18.00mm)	0.94" x 0.71" (24.00mm x 18.00mm)	0.94" x 0.71" (24.00mm x 18.00mm)
Lens Color	—	Green	Green	Green	Red	Red	Red
Lens Transparency	—	Diffused	Diffused	Diffused	Diffused	Diffused	Diffused
Lens Size	—	21.00mm x 15.10mm	21.00mm x 15.10mm	21.00mm x 15.10mm	21.00mm x 15.10mm	21.00mm x 15.10mm	21.00mm x 15.10mm
Lens Style	—	Rectangle with Flat Top	Rectangle with Flat Top	Rectangle with Flat Top	Rectangle with Flat Top	Rectangle with Flat Top	Rectangle with Flat Top
Voltage Rating	—	110V	110V	220V	110V	110V	220V
Ratings	—	AC/DC	AC/DC	AC/DC	AC/DC	AC/DC	AC/DC
Ingress Protection	—	IP40	IP40	IP40	IP40	IP40	IP40
Product Status	Obsolete	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Selection of substitute illumination components for the A16-CJM should be based on system voltage requirements and desired indicator color. All M16 series substitute parts maintain active product status with current manufacturing support and RoHS compliance, ensuring regulatory conformance and supply chain continuity.

For 110V AC/DC systems requiring green indication, select either M16-JG-T1 (with Quick Connect termination) or M16-JG-T1-S (standard termination). For 220V AC/DC systems requiring green indication, select M16-JG-T2-S. For 110V AC/DC systems requiring red indication, select either M16-JR-T1 (with Quick Connect termination) or M16-JR-T1-S (standard termination). For 220V AC/DC systems requiring red indication, select M16-JR-T2-S.

All substitute parts feature identical panel cutout dimensions, lens geometry, and ingress protection ratings, ensuring direct mechanical and functional compatibility with A16 series switch body assemblies.

Frequently Asked Questions (FAQ)

Q: Can M16 series illumination components directly replace the illumination function of the obsolete A16-CJM?

A: Yes. The M16 series LED indicators are designed as compatible illumination sources for A16 series switch bodies. Both series share identical panel cutout dimensions (24.00mm x 18.00mm rectangular) and lens geometry, enabling direct functional substitution.

Q: What determines which M16 substitute part to select?

A: Selection is determined by two parameters: operating voltage (110V or 220V AC/DC) and desired indicator color (green or red). Termination style (Quick Connect or standard) is a secondary consideration based on installation requirements.

Q: Are all M16 substitute parts RoHS compliant?

A: Yes. All listed M16 series substitute parts are active products with RoHS compliance, matching the compliance status of the original A16-CJM.

Q: What is the difference between M16-JG-T1 and M16-JG-T1-S?

A: Both parts are 110V green LED indicators with identical electrical and optical specifications. The primary difference is termination style: M16-JG-T1 features Quick Connect - 0.110" (2.8mm) termination, while M16-JG-T1-S uses standard termination. Selection depends on the connection method required by your application.

Q: Do all M16 substitute parts have the same ingress protection rating?

A: Yes. All M16 series substitute parts listed maintain IP40 ingress protection, ensuring consistent environmental protection across all color and voltage variants.

Q: Can I use a 220V rated indicator in a 110V system?

A: No. Operating voltage must match the system specification. Using a 220V rated component in a 110V system will result in insufficient illumination or component failure. Select the substitute part that matches your system voltage exactly.

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