Panasonic PM-Y54 Optical Sensor: Equivalent & Substitute Parts

Part Overview

The Panasonic PM-Y54 is an optical through-beam sensor module with NPN output configuration, selectable for Dark-ON or Light-ON operation. Designed for slot-type mounting with 0.197" (5mm) sensing distance, this component is classified as obsolete. Due to its discontinued status, identifying functionally compatible substitute parts is essential for system redesign, maintenance, and procurement planning. The PM-Y54 remains in stock (25,900 units available), but long-term availability cannot be guaranteed for new production runs.

Substiute Parts

PM-Y54

Panasonic Industrial Automation SalesIn Stock: 25958PM-Y54 Datasheet

Current PartRFQ

PM-Y45

Panasonic Industrial Automation SalesIn Stock: 1623PM-Y45 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PM-Y54 is evaluated based on the following critical parameters that define functional compatibility:

• Sensing Method: Through-Beam operation must be maintained
• Output Configuration: NPN output type required
• Mounting Type: Chassis Mount compatibility
• Package Type: Module with wire leads
• Response Time: 20µs performance capability
• Operating Temperature Range: -25°C ~ 55°C minimum coverage
• RoHS Compliance: Environmental regulatory alignment

The PM-Y45 qualifies as a substitute based on these core criteria. While the sensing distance differs (0.236" / 6mm vs. 0.197" / 5mm), both sensors maintain through-beam operation, NPN output, chassis mount configuration, and identical response time and temperature range specifications. The PM-Y45 is currently active in production, ensuring long-term availability and supply chain stability.

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration: Product Status

The PM-Y54 is classified as obsolete. The PM-Y45 is active in production and represents the recommended path for new designs and long-term system support. Current inventory of the PM-Y54 (25,900 units) may support near-term requirements, but procurement of the PM-Y45 is advised for systems requiring extended lifecycle support.

Compliance Alignment

Both parts meet RoHS requirements. The PM-Y45 carries ROHS3 certification, representing compliance with the most current environmental standards. Both components maintain MSL Level 1 (Unlimited) moisture sensitivity, indicating no special handling requirements during storage or assembly.

Functional Compatibility

The PM-Y45 maintains core through-beam sensing methodology, NPN output architecture, and identical response time (20µs) and operating temperature range (-25°C ~ 55°C). The increased sensing distance (6mm vs. 5mm) requires application-level verification to confirm compatibility with existing optical path geometry and target object positioning.

Output Configuration Difference

The PM-Y54 offers selectable Dark-ON/Light-ON operation, while the PM-Y45 provides fixed NPN Open Collector output. Applications requiring output mode selection must implement external logic or alternative sensor selection.

Frequently Asked Questions (FAQ)

Q: Can the PM-Y45 directly replace the PM-Y54 in existing assemblies?

A: Mechanical and electrical compatibility exists for most applications. The PM-Y45 maintains identical mounting type (Chassis Mount), package format (Module, Wire Leads), response time (20µs), and operating temperature range. However, the increased sensing distance (6mm vs. 5mm) and absence of selectable output mode require verification against specific application requirements before implementation.

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

A: The PM-Y54 features a 5mm sensing distance with selectable Dark-ON/Light-ON output, while the PM-Y45 provides a 6mm sensing distance with fixed NPN Open Collector output. Both maintain identical response time and temperature specifications. The PM-Y45 is currently in active production, whereas the PM-Y54 is obsolete.

Q: Why is the PM-Y54 classified as obsolete?

A: Panasonic has discontinued the PM-Y54 from its active product line. The PM-Y45 represents the current generation equivalent within the PM series optical sensor portfolio. Existing inventory remains available, but new production orders should transition to the PM-Y45.

Q: Are there any supply chain advantages to using the PM-Y45?

A: Yes. The PM-Y45 is an active product with 1,595 units currently in stock and ongoing manufacturing support. The PM-Y54, while currently available (25,900 units), has no guaranteed future availability. For systems with extended lifecycle requirements, the PM-Y45 provides supply chain stability.

Q: Do both sensors require the same mounting hardware?

A: Both sensors use Chassis Mount configuration. Verify that existing mounting fixtures accommodate the slot-type geometry of the PM-Y54 versus the standard module format of the PM-Y45, as mechanical interface details may differ.

Q: What certifications apply to both parts?

A: Both the PM-Y54 and PM-Y45 are RoHS compliant. The PM-Y45 carries ROHS3 certification. Both maintain MSL Level 1 (Unlimited) moisture sensitivity, requiring no special environmental controls during storage or assembly.