PM-R24-C3 Equivalent & Substitute Parts

Part Overview

The PM-R24-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 supplied as an unamplified module with wire leads in a slot-type chassis mount configuration. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance and component sourcing.

Substiute Parts

PM-R24-C3

Panasonic Industrial Automation SalesIn Stock: 756PM-R24-C3 Datasheet

Current PartRFQ

PM-R25-C3

Panasonic Industrial Automation SalesIn Stock: 1418PM-R25-C3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The PM-R25-C3 is identified as a substitute for the PM-R24-C3 based on the following critical parameters that determine functional compatibility:

Shared Characteristics:

• Sensing Method: Through-Beam (both sensors use identical detection principle)
• Output Configuration: NPN-based open collector output
• Response Time: 20µs (identical switching speed)
• Operating Temperature Range: -25°C ~ 55°C (identical thermal operating window)
• Mounting Type: Chassis Mount (same mechanical installation method)
• Package Type: Module with Wire Leads (same form factor category)
• RoHS Compliance: Both parts are RoHS Compliant
• Moisture Sensitivity Level: 1 (Unlimited) for both parts

Key Difference:

• Sensing Distance: PM-R24-C3 operates at 0.197" (5mm), while PM-R25-C3 operates at 0.236" (6mm)

The substitute relationship is valid where the increased sensing distance of the PM-R25-C3 is acceptable for the application. Both sensors maintain identical electrical performance characteristics and environmental ratings.

Parameter Comparison

Engineering Selection Recommendations

The PM-R25-C3 is an active product with current manufacturing status, whereas the PM-R24-C3 is obsolete. Both parts maintain identical RoHS compliance and MSL ratings, ensuring equivalent environmental and regulatory compliance for applications requiring these certifications.

The primary selection criterion is sensing distance. The PM-R25-C3 provides a 1mm increase in sensing distance (6mm versus 5mm). This substitution is valid for applications where the extended sensing range does not conflict with mechanical constraints or optical alignment requirements.

Both sensors maintain identical response time (20µs) and operating temperature range (-25°C ~ 55°C), ensuring equivalent performance in dynamic switching applications and thermal environments.

Frequently Asked Questions (FAQ)

Q: Can the PM-R25-C3 directly replace the PM-R24-C3 in all applications?

A: Direct replacement is valid where the increased sensing distance of 6mm (versus 5mm) is compatible with the mechanical slot width and optical path geometry of the original installation. Verify that the larger sensing distance does not cause false triggering or missed detection events in your specific application.

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

A: The sensing distance differs by 1mm. The PM-R24-C3 detects objects at 0.197" (5mm), while the PM-R25-C3 detects at 0.236" (6mm). All other electrical and environmental parameters are identical.

Q: Are both sensors RoHS compliant?

A: Yes, both the PM-R24-C3 and PM-R25-C3 are RoHS Compliant with MSL rating of 1 (Unlimited).

Q: What is the response time for both sensors?

A: Both sensors have an identical response time of 20µs, ensuring equivalent switching speed in control circuits.

Q: Why is the PM-R24-C3 marked as obsolete?

A: The PM-R24-C3 is no longer in active production. The PM-R25-C3 represents the current active product line from Panasonic Industrial Automation Sales for this sensor category.

Q: Are the output configurations compatible?

A: Both sensors use NPN open collector output architecture. The PM-R24-C3 offers selectable Dark-ON/Light-ON operation, while the PM-R25-C3 provides standard NPN open collector output. Verify that your circuit design accommodates the output configuration of the substitute part.

Q: What is the operating temperature range for both sensors?

A: Both sensors operate across the identical temperature range of -25°C to 55°C, ensuring equivalent thermal performance in industrial environments.