PM-R54P Equivalent & Substitute Parts

Part Overview

The PM-R54P is an optical sensor manufactured by Panasonic Industrial Automation Sales, designed as a through-beam slot-type module with selectable PNP dark-on/light-on output configuration. This component operates at a 0.197" (5mm) sensing distance and is classified as an unamplified optical sensor with wire lead connections for chassis mounting applications.

The PM-R54P is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain system functionality in applications where original stock is depleted or long-term component availability cannot be assured.

Substiute Parts

PM-R54P

Panasonic Industrial Automation SalesIn Stock: 983PM-R54P Datasheet

Current PartRFQ

PM-R45-P

Panasonic Industrial Automation SalesIn Stock: 1811PM-R45-P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PM-R54P is determined by the following critical parameters:

Sensing Method: Through-beam optical sensing is the fundamental operating principle. Substitute parts must employ identical through-beam detection methodology.

Output Configuration: The PM-R54P provides PNP output with selectable dark-on/light-on logic. Substitute parts must support PNP output topology to maintain circuit compatibility.

Sensing Distance: The 0.197" (5mm) sensing distance defines the optical path and slot width. Substitute parts with different sensing distances may require mechanical redesign of the sensor slot assembly.

Response Time: The 20µs response time establishes the maximum switching speed. Substitute parts must meet or exceed this performance specification.

Operating Temperature Range: The -25°C ~ 55°C operating window defines environmental suitability. Substitute parts must support this temperature envelope.

Mounting Type and Package: Chassis mount configuration with wire leads and slot-type module form factor determines physical integration. Substitute parts must maintain compatible mechanical interfaces.

Electrical Ratings: Collector current (15 mA max), forward current (50 mA max), and collector-emitter breakdown voltage (30 V max) establish load-driving capability and voltage tolerance.

The PM-R45-P is identified as a substitute based on shared through-beam sensing method, PNP output configuration, compatible response time, matching operating temperature range, identical mounting type, and equivalent electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The PM-R45-P is an active product with current manufacturing status and ROHS3 compliance certification, providing long-term component availability compared to the obsolete PM-R54P. Both components share identical through-beam sensing methodology, PNP output topology, 20µs response time capability, and -25°C ~ 55°C operating temperature range.

The primary design consideration is the sensing distance differential: the PM-R54P operates at 0.197" (5mm) while the PM-R45-P operates at 0.236" (6mm). This 0.039" (1mm) increase in sensing distance may require mechanical adjustment to the sensor slot assembly to maintain proper optical alignment and detection performance.

The PM-R45-P output configuration is specified as PNP open collector, whereas the PM-R54P provides selectable dark-on/light-on logic. Verification of output logic requirements in the target application is necessary to confirm functional compatibility.

Both components maintain identical electrical current and voltage ratings, MSL classification, and wire lead package configuration, supporting direct functional substitution in applications where the sensing distance and output logic adjustments are accommodated.

Frequently Asked Questions (FAQ)

Q: Can the PM-R45-P directly replace the PM-R54P without mechanical modification?

A: The PM-R45-P has a 0.236" (6mm) sensing distance compared to the PM-R54P's 0.197" (5mm). The slot width difference of 0.039" (1mm) may require adjustment to the sensor mounting slot to maintain proper optical beam alignment. Mechanical compatibility must be evaluated for the specific application.

Q: What is the difference between selectable dark-on/light-on output and open collector output?

A: The PM-R54P provides selectable dark-on/light-on logic, allowing configuration of the output state during object detection. The PM-R45-P provides open collector output, which requires external pull-up resistor configuration to establish output logic levels. Application circuit design must accommodate this output topology difference.

Q: Are both components RoHS compliant?

A: The PM-R54P is RoHS Compliant. The PM-R45-P is ROHS3 Compliant. Both meet RoHS environmental compliance requirements, with the PM-R45-P meeting the more recent ROHS3 standard.

Q: What is the response time difference between these components?

A: The PM-R54P specifies a single response time of 20µs. The PM-R45-P supports dual response time options of 20µs or 80µs. Both components can operate at the 20µs response time, ensuring compatibility in applications requiring fast switching performance.

Q: Is the PM-R45-P suitable for the same operating temperature range?

A: Both components operate across the -25°C ~ 55°C temperature range. The PM-R45-P is specified as -25°C ~ 55°C (TA), indicating ambient temperature rating. Both components are suitable for identical thermal environments.

Q: What is the current availability status of each component?

A: The PM-R54P is obsolete with 933 pieces in current stock. The PM-R45-P is an active product with 1773 pieces in current stock, providing assured long-term component availability for new designs and production continuity.