PM-L24P Equivalent & Substitute Parts

Part Overview

The PM-L24P 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 sensor operates with PNP output and is classified as an unamplified optical sensor for industrial automation applications. The PM-L24P is currently listed as obsolete, making identification of compatible substitute parts essential for system maintenance and component procurement. Active equivalent models provide continued availability while maintaining functional compatibility with existing installations.

Substiute Parts

PM-L24P

Panasonic Industrial Automation SalesIn Stock: 768PM-L24P Datasheet

Current PartRFQ

PM-L25-P

Panasonic Industrial Automation SalesIn Stock: 3393PM-L25-P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PM-L24P is determined by the following critical parameters:

Sensing Method: Through-beam operation is mandatory for functional equivalence. Both the main part and substitute must employ the same detection principle.

Output Configuration: PNP output type is required. The PM-L24P features selectable dark-ON/light-ON functionality; substitute parts must support PNP open-collector output.

Sensing Distance: The PM-L24P operates at 0.197" (5mm). The substitute PM-L25-P operates at 0.236" (6mm), representing a 1mm increase in sensing distance. This variance remains within acceptable tolerance for slot-type through-beam applications where the gap width is the primary design constraint.

Response Time: Both parts maintain 20µs response time, ensuring equivalent switching performance.

Operating Temperature Range: Both parts operate across -25°C ~ 55°C, providing identical thermal performance.

Mounting Type: Chassis mount configuration is consistent across both parts.

Electrical Ratings: The PM-L25-P operates at 5V ~ 24V supply voltage with 15mA supply current, which is compatible with the PM-L24P's electrical specifications.

Compliance: The PM-L25-P holds ROHS3 Compliant status, exceeding the RoHS Compliant status of the PM-L24P.

Parameter Comparison

Engineering Selection Recommendations

The PM-L25-P serves as the active equivalent for the obsolete PM-L24P. Both sensors maintain identical response time (20µs) and operating temperature range (-25°C ~ 55°C), ensuring equivalent performance in industrial automation environments.

The primary design difference is the sensing distance: PM-L25-P operates at 0.236" (6mm) compared to PM-L24P at 0.197" (5mm). This 1mm difference is acceptable in slot-type through-beam applications where the slot width is the controlling dimension. System designers must verify that the increased sensing distance does not conflict with existing mechanical slot geometry.

The PM-L25-P holds ROHS3 Compliant certification, which exceeds the RoHS Compliant status of the PM-L24P, providing enhanced environmental compliance for new installations and system upgrades.

Both parts are manufactured by Panasonic Industrial Automation Sales and employ identical mounting methodology (chassis mount, module with wire leads). Electrical compatibility is maintained through PNP output configuration and matching response characteristics.

Frequently Asked Questions (FAQ)

Q: Can PM-L25-P directly replace PM-L24P in existing installations?

A: Direct mechanical and electrical replacement is possible provided the slot width accommodates the 1mm increase in sensing distance (from 5mm to 6mm). Verify slot geometry before substitution.

Q: What is the difference between "Dark-ON/Light-ON - Selectable" and "Open Collector" output?

A: The PM-L24P provides field-selectable output logic (dark-ON or light-ON operation). The PM-L25-P provides standard PNP open-collector output. System configuration must be verified to ensure compatibility with the control circuit's expected output logic.

Q: Are both sensors RoHS compliant?

A: Yes. PM-L24P is RoHS Compliant. PM-L25-P is ROHS3 Compliant, which represents a higher compliance standard.

Q: Do both sensors operate at the same supply voltage?

A: PM-L25-P operates at 5V ~ 24V supply voltage. PM-L24P supply voltage specifications are not provided in the available data. Verify the original system supply voltage before substitution.

Q: Is the 20µs response time identical between both parts?

A: Yes. Both PM-L24P and PM-L25-P maintain 20µs response time, ensuring equivalent switching performance in control applications.

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

A: In slot-type through-beam applications, the sensing distance is determined by the physical slot width. A 1mm increase may affect detection reliability if the slot width is marginal. Verify that the slot width is sufficient for the PM-L25-P's 6mm sensing distance.