PM-R44-C3 Equivalent & Substitute Parts

Part Overview

The PM-R44-C3 is an optical sensor module manufactured by Panasonic Industrial Automation Sales, designed for through-beam sensing applications with a 0.197" (5mm) sensing distance. This NPN-output sensor features selectable Dark-ON/Light-ON operation and is housed in a slot-type module with wire leads for chassis mounting. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance and component sourcing.

Substiute Parts

PM-R44-C3

Panasonic Industrial Automation SalesIn Stock: 1114PM-R44-C3 Datasheet

Current PartRFQ

PM-R45-C3

Panasonic Industrial Automation SalesIn Stock: 890PM-R45-C3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PM-R44-C3 is determined by the following critical parameters:

• Sensing Method: Through-beam operation must be maintained
• Output Configuration: NPN output with open collector topology
• Mounting Type: Chassis mount with wire leads
• Operating Temperature Range: -25°C ~ 55°C compatibility
• Response Time: 20µs or faster performance
• Electrical Ratings: Collector current and voltage specifications must meet or exceed application requirements
• Compliance: RoHS and MSL ratings for environmental and regulatory requirements

The PM-R45-C3 qualifies as a substitute based on these parameters, though with a modified sensing distance of 0.236" (6mm) instead of the original 5mm specification.

Parameter Comparison

Engineering Selection Recommendations

The PM-R45-C3 is the designated substitute for the obsolete PM-R44-C3. Both sensors maintain identical collector current ratings (15 mA maximum), matching operating temperature ranges (-25°C ~ 55°C), and equivalent response times (20µs). Both components are RoHS compliant with MSL rating of 1, ensuring regulatory and environmental compatibility.

The primary difference is the sensing distance: the PM-R45-C3 operates at 0.236" (6mm) compared to the original 0.197" (5mm). This represents a 1mm increase in sensing gap, which must be evaluated against specific application requirements. The PM-R45-C3 is currently in active production status, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the PM-R45-C3 directly replace the PM-R44-C3 in existing designs?

A: The PM-R45-C3 is electrically and functionally compatible as a substitute. The primary consideration is the increased sensing distance (6mm vs. 5mm). Applications requiring the original 5mm gap must evaluate whether the 1mm increase affects detection performance or mechanical fit.

Q: What are the key differences between these two sensors?

A: The main differences are sensing distance (5mm vs. 6mm) and output configuration description (Dark-ON/Light-ON selectable vs. open collector). Both maintain identical electrical ratings, response times, and operating temperature ranges.

Q: Are both sensors RoHS compliant?

A: Yes. The PM-R44-C3 is RoHS Compliant, and the PM-R45-C3 is ROHS3 Compliant. Both meet current environmental and regulatory standards.

Q: What is the moisture sensitivity level for these sensors?

A: Both the PM-R44-C3 and PM-R45-C3 have an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Why is the PM-R44-C3 listed as obsolete?

A: The PM-R44-C3 has reached end-of-life status. The PM-R45-C3 represents the active production alternative from Panasonic Industrial Automation Sales for through-beam optical sensing applications in this product family.