PM-T44P Equivalent & Substitute Parts

Part Overview

The PM-T44P is an optical sensor manufactured by Panasonic Industrial Automation Sales, designed as a through-beam slot-type module with selectable dark-ON/light-ON output configuration. This unamplified sensor operates with PNP output and 5mm sensing distance, suitable for chassis-mounted applications requiring wire lead connectivity.

The PM-T44P is classified as obsolete. Locating equivalent or substitute components is necessary to maintain system functionality in applications currently utilizing this sensor or to support legacy equipment requiring compatible replacements.

Substiute Parts

PM-T44P

Panasonic Industrial Automation SalesIn Stock: 78718PM-T44P Datasheet

Current PartRFQ

PM-T45-P

Panasonic Industrial Automation SalesIn Stock: 1535PM-T45-P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Sensing Method: Through-beam operation is mandatory for functional equivalence.

Output Configuration: PNP output type is required for circuit compatibility.

Sensing Distance: The 5mm sensing distance establishes the detection range requirement. Substitute parts with different sensing distances (such as 6mm) represent functional alternatives rather than direct equivalents, as they alter the detection envelope.

Response Time: 20µs response time is a performance specification that substitute parts must meet or exceed.

Operating Temperature Range: -25°C ~ 55°C defines the environmental operating envelope.

Mounting Type: Chassis mount with wire leads ensures mechanical and electrical interface compatibility.

Compliance: RoHS compliance status ensures regulatory alignment with current manufacturing standards.

The PM-T45-P is listed as a substitute part. While it maintains through-beam sensing method, PNP output, chassis mount configuration, and identical response time and operating temperature range, it differs in sensing distance (6mm versus 5mm) and output configuration specifics (open collector versus selectable dark-ON/light-ON).

Parameter Comparison

Engineering Selection Recommendations

The PM-T45-P is available as an active product with current manufacturing support and ROHS3 compliance, whereas the PM-T44P is obsolete. Selection of the PM-T45-P as a substitute requires evaluation of the following factors:

Sensing Distance Difference: The PM-T45-P operates at 6mm sensing distance compared to the PM-T44P at 5mm. This 1mm increase alters the detection range and may affect slot width compatibility in mechanical assemblies.

Output Configuration: The PM-T45-P provides PNP open collector output, whereas the PM-T44P offers selectable dark-ON/light-ON configuration. Circuit design must accommodate this functional difference.

Response Time Options: The PM-T45-P supports both 20µs and 80µs response times, providing flexibility for applications with varying timing requirements.

Regulatory Compliance: The PM-T45-P meets ROHS3 compliance, representing current regulatory standards. The PM-T44P meets RoHS compliance, an earlier standard iteration.

Product Availability: The PM-T45-P is in active production status, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

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

A: Direct replacement requires verification of three factors: (1) mechanical slot width compatibility with the 6mm sensing distance, (2) circuit compatibility with PNP open collector output, and (3) acceptance of the fixed output configuration without selectable dark-ON/light-ON switching.

Q: What is the primary difference between these two sensors?

A: The primary differences are sensing distance (5mm versus 6mm), output configuration flexibility (selectable versus fixed open collector), and product status (obsolete versus active).

Q: Are the response times equivalent?

A: Both sensors support 20µs response time. The PM-T45-P additionally offers an 80µs option, providing flexibility for applications with less stringent timing requirements.

Q: What compliance standards apply to each part?

A: The PM-T44P meets RoHS compliance. The PM-T45-P meets ROHS3 compliance, which represents a more current regulatory standard.

Q: Does the 1mm difference in sensing distance affect performance?

A: The sensing distance difference directly affects the detection range and slot width requirements. Applications with tight mechanical tolerances or specific slot dimensions must account for this variation.

Q: Is the PM-T45-P suitable for new designs?

A: Yes. The PM-T45-P is in active production status with current compliance certifications, making it suitable for new equipment designs and legacy system upgrades.