Panasonic PM-L64 Optical Sensor - Equivalent & Substitute Parts

Part Overview

The Panasonic PM-L64 is an optical through-beam sensor module with NPN output configuration, selectable for Dark-ON or Light-ON operation. This component is classified as obsolete, making identification of compatible substitute parts essential for system maintenance and component sourcing. The PM-L64 operates with a 5mm sensing distance and is designed for chassis mount applications in industrial automation environments.

Substiute Parts

PM-L64

Panasonic Industrial Automation SalesIn Stock: 770PM-L64 Datasheet

Current PartRFQ

PM-L65

Panasonic Industrial Automation SalesIn Stock: 1647PM-L65 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The PM-L65 is identified as a substitute for the PM-L64 based on the following critical parameters that determine functional compatibility:

Matching Parameters:

• Sensing Method: Through-Beam (both models)
• Output Configuration: NPN - Open Collector (PM-L65 maintains NPN output type)
• Response Time: 20µs (identical)
• Operating Temperature Range: -25°C ~ 55°C (identical)
• Mounting Type: Chassis Mount (identical)
• Package Type: Module, Connector (compatible form factor)
• ECCN Classification: EAR99 (identical)
• HTSUS Code: 8543.70.9860 (identical)

Differing Parameters:

• Sensing Distance: PM-L64 operates at 0.197" (5mm); PM-L65 operates at 0.236" (6mm)
• Output Selectability: PM-L64 offers Dark-ON/Light-ON selectable operation; PM-L65 provides fixed NPN Open Collector output
• Supply Voltage: PM-L65 requires 5V ~ 24V supply; PM-L64 specifications do not explicitly define supply voltage range
• Current - Supply: PM-L65 specifies 15 mA supply current
• Product Status: PM-L64 is Obsolete; PM-L65 is Active

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The PM-L64 is classified as obsolete, while the PM-L65 maintains active product status with 1631 units in current inventory. For new designs or system replacements, the PM-L65 is the appropriate selection.

Compliance and Certification: Both parts meet export control requirements under ECCN EAR99 classification. The PM-L65 carries ROHS3 compliance, representing current regulatory standards, whereas the PM-L64 carries RoHS compliance. Both parts maintain MSL Level 1 (Unlimited) moisture sensitivity rating.

Functional Compatibility: The PM-L65 maintains identical response time (20µs) and operating temperature range (-25°C ~ 55°C) as the PM-L64. Both employ through-beam sensing methodology with NPN output architecture. The primary functional difference is the sensing distance specification: the PM-L65 operates at 0.236" (6mm) compared to the PM-L64 at 0.197" (5mm). System integration must account for this 1mm difference in sensing distance when evaluating mechanical fit and optical alignment requirements.

Output Configuration Difference: The PM-L64 provides selectable Dark-ON/Light-ON operation, while the PM-L65 provides fixed NPN Open Collector output. Applications requiring output mode selectability must evaluate whether the PM-L65's fixed configuration meets system requirements.

Frequently Asked Questions (FAQ)

Q: Can the PM-L65 directly replace the PM-L64 in existing installations?

A: The PM-L65 shares identical sensing methodology, response time, operating temperature range, and mounting type. However, the 1mm difference in sensing distance (PM-L64: 5mm vs. PM-L65: 6mm) requires mechanical and optical alignment verification. Additionally, the PM-L65 provides fixed NPN Open Collector output rather than selectable Dark-ON/Light-ON operation, which must be evaluated against system requirements.

Q: What is the significance of the sensing distance difference between these parts?

A: The PM-L64 operates with a 0.197" (5mm) sensing distance, while the PM-L65 operates at 0.236" (6mm). This 1mm difference affects the physical spacing between the emitter and receiver in through-beam applications and may impact optical alignment in confined mechanical assemblies.

Q: Are both parts RoHS compliant?

A: Yes. The PM-L64 carries RoHS compliance, and the PM-L65 carries ROHS3 compliance. Both meet environmental regulatory requirements for their respective product lifecycles.

Q: What is the package difference between PM-L64 and PM-L65?

A: Both parts use Module, Connector form factors suitable for chassis mount applications. The PM-L64 specifies Slot Type packaging, while the PM-L65 specifies standard Module, Connector packaging. Mechanical compatibility must be verified for specific mounting applications.

Q: Why is the PM-L64 listed as obsolete?

A: The PM-L64 has reached end-of-life status in the Panasonic product portfolio. The PM-L65 represents the active successor product line within the PM series optical sensor family.