PM-L24-R Equivalent & Substitute Parts

Part Overview

The PM-L24-R is an optical sensor manufactured by Panasonic Industrial Automation Sales, designed as a through-beam slot-type module with NPN output configuration and selectable Dark-ON/Light-ON operation. This unamplified sensor operates with a 0.197" (5mm) sensing distance and is classified as obsolete. Due to its obsolete status, identifying functionally compatible substitute components is essential for system maintenance, redesign, and procurement continuity.

Substiute Parts

PM-L24-R

Panasonic Industrial Automation SalesIn Stock: 1034PM-L24-R Datasheet

Current PartRFQ

PM-L25-R

Panasonic Industrial Automation SalesIn Stock: 1182PM-L25-R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The PM-L25-R qualifies as a substitute for the PM-L24-R based on the following alignment of critical parameters:

Matching Parameters:

• Sensing Method: Through-Beam (both models)
• Output Configuration: NPN - Open Collector (compatible with NPN architecture)
• Response Time: 20µs (identical)
• Operating Temperature: -25°C ~ 55°C (identical)
• Mounting Type: Chassis Mount (identical)
• Package / Case: Module, Wire Leads (compatible form factor)
• RoHS Compliance: Both models meet environmental standards

Differentiation:

• Sensing Distance: PM-L25-R operates at 0.236" (6mm) versus PM-L24-R at 0.197" (5mm)
• Current - Supply: PM-L25-R specifies 15 mA supply current with 5V ~ 24V supply voltage range
• Product Status: PM-L25-R is Active, ensuring ongoing availability and support

Parameter Comparison

Engineering Selection Recommendations

The PM-L25-R is the designated substitute for the PM-L24-R. Selection of the PM-L25-R is supported by:

• Product Status Alignment: The PM-L25-R is Active, providing assured supply and manufacturer support, whereas the PM-L24-R is Obsolete.
• Compliance Enhancement: The PM-L25-R meets ROHS3 Compliant standards, representing current environmental compliance requirements.
• Functional Compatibility: Both sensors employ through-beam sensing methodology with NPN output architecture and identical response time specifications.
• Operational Range: Both models operate across the identical temperature range of -25°C ~ 55°C, ensuring thermal compatibility in equivalent applications.

The primary design consideration is the sensing distance differential: the PM-L25-R operates at 0.236" (6mm) compared to the PM-L24-R at 0.197" (5mm). This 0.039" (1mm) increase in sensing distance must be evaluated against specific application slot width and object detection requirements.

Frequently Asked Questions (FAQ)

Q: Can the PM-L25-R directly replace the PM-L24-R in existing designs?

A: The PM-L25-R is functionally compatible as a through-beam NPN optical sensor with matching response time and operating temperature range. However, the increased sensing distance of 0.236" (6mm) versus 0.197" (5mm) requires verification that the application slot geometry accommodates the larger gap. Mechanical integration and slot width compatibility must be confirmed before implementation.

Q: What is the significance of the sensing distance difference?

A: Sensing distance defines the maximum gap between the emitter and receiver at which object detection occurs. The PM-L25-R's 6mm sensing distance is suitable for applications requiring detection across slightly larger gaps. Applications with constrained slot widths below 6mm may require alternative evaluation.

Q: Are the output configurations equivalent between these models?

A: Both models employ NPN output architecture. The PM-L24-R offers selectable Dark-ON/Light-ON operation, while the PM-L25-R specifies NPN - Open Collector configuration. Both are compatible with standard NPN input circuits. The selectable mode feature of the PM-L24-R should be evaluated against the fixed configuration of the PM-L25-R for specific application requirements.

Q: What is the supply voltage requirement for the PM-L25-R?

A: The PM-L25-R operates with a supply voltage range of 5V ~ 24V and draws a maximum supply current of 15 mA. Verify that the application power supply falls within this range before substitution.

Q: Are there any RoHS or environmental compliance differences?

A: The PM-L24-R is RoHS Compliant, while the PM-L25-R meets the more recent ROHS3 Compliant standard. Both models satisfy current environmental regulations. The PM-L25-R represents compliance with updated standards.

Q: What is the package configuration for each model?

A: Both models are supplied as Module with Wire Leads in a Chassis Mount configuration. The PM-L24-R specifies Slot Type packaging, while the PM-L25-R provides standard Module packaging. Physical form factor compatibility should be confirmed for mechanical integration.