PM-T44P-C3 Equivalent & Substitute Parts

Part Overview

The PM-T44P-C3 is an optical through-beam sensor manufactured by Panasonic Industrial Automation Sales, designed for slot-type applications with a 5mm sensing distance. This component features PNP output with selectable Dark-ON/Light-ON functionality and operates across industrial temperature ranges. The product is currently obsolete, making equivalent substitutes necessary for ongoing system maintenance and new design implementations where similar performance characteristics are required.

Substiute Parts

PM-T44P-C3

Panasonic Industrial Automation SalesIn Stock: 1043PM-T44P-C3 Datasheet

Current PartRFQ

PM-T45-P-C3

Panasonic Industrial Automation SalesIn Stock: 941PM-T45-P-C3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PM-T44P-C3 is determined by the following critical parameters:

• Sensing Method: Through-Beam configuration must be maintained
• Output Type: PNP output configuration required
• Sensing Distance: Optical path distance tolerance (5mm nominal)
• Response Time: 20µs performance specification
• Operating Temperature Range: -25°C ~ 55°C compatibility
• Mounting Configuration: Chassis mount, module-based form factor
• Electrical Ratings: Collector current and voltage breakdown specifications

The PM-T45-P-C3 qualifies as a substitute based on matching these core parameters while operating in an active product status.

Parameter Comparison

Engineering Selection Recommendations

The PM-T45-P-C3 serves as the active equivalent for the obsolete PM-T44P-C3. Both components maintain identical collector current specifications (15 mA maximum) and operating temperature ranges (-25°C ~ 55°C). The substitute achieves ROHS3 compliance, exceeding the RoHS compliance of the original part.

Key differences in selection criteria:

• Sensing Distance: The PM-T45-P-C3 operates at 6mm versus the original 5mm specification. This represents a 1mm increase in optical path distance and must be evaluated against specific application slot geometry.
• Output Selectability: The original PM-T44P-C3 provides Dark-ON/Light-ON selectable output, while the PM-T45-P-C3 operates as fixed PNP Open Collector. Application logic must accommodate this fixed output state.
• Response Time Options: The PM-T45-P-C3 offers dual response time specifications (20µs and 80µs), providing flexibility for timing-critical applications.
• Product Status: The active status of PM-T45-P-C3 ensures ongoing availability and support compared to the obsolete PM-T44P-C3.

Frequently Asked Questions (FAQ)

Q: Can the PM-T45-P-C3 directly replace the PM-T44P-C3 in existing assemblies?

A: Direct mechanical and electrical replacement is possible with the following considerations: the 6mm sensing distance requires verification against slot geometry constraints, and the fixed PNP Open Collector output must be compatible with existing control logic that previously utilized selectable Dark-ON/Light-ON functionality.

Q: What is the impact of the 1mm sensing distance difference?

A: The PM-T45-P-C3 operates at 0.236" (6mm) compared to the PM-T44P-C3 at 0.197" (5mm). This difference affects the optical path tolerance and slot opening dimensions. Applications with tight mechanical constraints must confirm compatibility with the larger sensing distance.

Q: Are both parts electrically compatible?

A: Both components share identical maximum collector current (15 mA) and operating temperature ranges (-25°C ~ 55°C). The primary electrical difference is the output configuration: the original provides selectable Dark-ON/Light-ON output, while the substitute provides fixed PNP Open Collector output.

Q: What compliance advantages does the PM-T45-P-C3 offer?

A: The PM-T45-P-C3 meets ROHS3 compliance standards, compared to RoHS compliance for the PM-T44P-C3. Both components carry identical ECCN (EAR99) and HTSUS (8543.70.9860) classifications.

Q: Is the response time specification equivalent?

A: The PM-T44P-C3 specifies 20µs response time. The PM-T45-P-C3 offers both 20µs and 80µs response time options, allowing selection based on application timing requirements. The 20µs option maintains parity with the original specification.