CX-443 Equivalent & Substitute Parts

Part Overview

The CX-443 is a reflective optical sensor manufactured by Panasonic Industrial Automation Sales, designed for non-contact object detection applications. It operates with NPN open collector output and features a sensing distance range of 0.079" to 1.969" (2mm to 50mm). The CX-443 is classified as obsolete, making identification of compatible substitute components essential for system maintenance and new design implementations. The CX-400 series provides active alternatives that maintain core functional compatibility while offering extended sensing capabilities.

Substiute Parts

CX-443

Panasonic Industrial Automation SalesIn Stock: 1102CX-443 Datasheet

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CX-444

Panasonic Industrial Automation SalesIn Stock: 989CX-444 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CX-443 is determined by maintaining electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Requirements:

• Voltage supply range: 12V ~ 24V
• Output configuration: NPN - Open Collector
• Response time: 1ms
• Light source: Red LED

Mechanical & Environmental Compatibility Requirements:

• Sensing method: Reflective
• Connection method: Cable with 78.74" (2m) length
• Ingress protection: IP67
• Operating temperature range: -25°C ~ 55°C

Allowable Variation:

• Sensing distance range may extend beyond the original specification, provided the minimum sensing distance does not exceed application requirements

The CX-444 qualifies as a direct substitute based on these criteria, with an extended sensing distance range of 0.591" to 3.937" (15mm to 100mm), maintaining all other electrical and environmental specifications.

Parameter Comparison

Engineering Selection Recommendations

The CX-444 is the qualified substitute for the obsolete CX-443. Both components maintain identical electrical output characteristics, environmental protection ratings, and thermal operating ranges. The CX-444 is currently in active production status with ROHS3 compliance certification, ensuring long-term availability and regulatory alignment.

The extended sensing distance range of the CX-444 (0.591" to 3.937" versus 0.079" to 1.969") provides additional application flexibility without compromising compatibility with existing CX-443 installations. Applications requiring the shorter minimum sensing distance of the CX-443 remain compatible with the CX-444, as the substitute's minimum distance specification is a superset of the original component's range.

Frequently Asked Questions (FAQ)

Q: Can the CX-444 directly replace the CX-443 in existing installations?

A: Yes. The CX-444 maintains identical voltage supply, output configuration, response time, light source, connection method, ingress protection, and operating temperature specifications. The extended sensing distance range does not create incompatibility with existing circuit designs.

Q: What is the primary difference between the CX-443 and CX-444?

A: The sensing distance range differs. The CX-443 operates from 0.079" to 1.969" (2mm to 50mm), while the CX-444 extends to 0.591" to 3.937" (15mm to 100mm). All other electrical and mechanical parameters remain identical.

Q: Why is the CX-443 listed as obsolete?

A: The CX-443 has been discontinued by the manufacturer. The CX-444 serves as the active production alternative within the CX-400 series.

Q: Are there packaging differences between these components?

A: The CX-443 packaging is unspecified in the product data. The CX-444 is supplied in box packaging. Both components use identical cable connection methods with 78.74" (2m) cable length.

Q: Do both components meet current regulatory compliance standards?

A: The CX-443 is RoHS Compliant. The CX-444 is ROHS3 Compliant, representing current regulatory alignment. Both components carry MSL Rating 1 (Unlimited) moisture sensitivity classification.