Panasonic PM-U24P Optical Sensor - Equivalent & Substitute Parts

Part Overview

The Panasonic PM-U24P is a through-beam optical sensor module with selectable dark-ON/light-ON output configuration and PNP output. This component is classified as obsolete, making identification of compatible substitute parts essential for system maintenance and new design implementations. The PM-U24P operates with a 5mm sensing distance and is designed for slot-type mounting applications requiring reliable optical detection in industrial automation environments.

Substiute Parts

PM-U24P

Panasonic Industrial Automation SalesIn Stock: 895PM-U24P Datasheet

Current PartRFQ

PM-U25-P

Panasonic Industrial Automation SalesIn Stock: 1831PM-U25-P Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the PM-U24P is determined by the following critical parameters that must remain compatible:

• Sensing Method: Through-beam optical detection
• Output Type: PNP configuration with open collector output
• Mounting Interface: Chassis mount with wire leads
• Response Time: 20µs maximum
• Operating Temperature Range: -25°C ~ 55°C
• Electrical Ratings: Collector current and voltage specifications
• Package Form Factor: Module-based slot-type construction

The PM-U25-P qualifies as a substitute based on matching sensing method, output configuration, mounting type, response time, operating temperature range, and package form factor. The primary difference is an increased sensing distance of 6mm versus the original 5mm specification.

Parameter Comparison

Engineering Selection Recommendations

The PM-U25-P is the designated substitute for the obsolete PM-U24P based on functional equivalence across core optical and electrical parameters. Both components maintain identical response time specifications (20µs), matching collector current ratings (15 mA maximum), and identical operating temperature ranges (-25°C ~ 55°C).

The PM-U25-P carries active product status with ROHS3 compliance, providing superior long-term availability and regulatory alignment compared to the obsolete PM-U24P. Both components are classified as Moisture Sensitivity Level 1 (Unlimited), indicating equivalent environmental robustness.

The primary design consideration is the increased sensing distance of the PM-U25-P (6mm versus 5mm). Applications requiring the original 5mm detection range must evaluate whether the extended 6mm capability of the substitute accommodates the mechanical and optical geometry of the target installation.

Frequently Asked Questions (FAQ)

Q: Can the PM-U25-P directly replace the PM-U24P in existing installations?

A: The PM-U25-P is functionally equivalent in sensing method, output type, response time, and electrical ratings. The primary consideration is the increased sensing distance (6mm versus 5mm). If the application's optical path and mechanical slot geometry accommodate the extended range, direct substitution is viable. If the 5mm distance is a critical design constraint, alternative solutions must be evaluated.

Q: What is the difference in output configuration between these two parts?

A: The PM-U24P features selectable dark-ON/light-ON output, providing operational flexibility. The PM-U25-P provides PNP open collector output. Both are PNP-based configurations suitable for industrial control circuits. The selectable mode of the PM-U24P may require circuit redesign if the application depends on this feature.

Q: Are there compliance differences between PM-U24P and PM-U25-P?

A: The PM-U24P is RoHS Compliant. The PM-U25-P is ROHS3 Compliant, representing a more current regulatory standard. Both components maintain Moisture Sensitivity Level 1 (Unlimited) classification. The PM-U25-P's active product status ensures ongoing compliance support and availability.

Q: What is the supply voltage requirement for the PM-U25-P?

A: The PM-U25-P operates with a supply voltage range of 5V ~ 24V. This specification was not provided for the PM-U24P in the available documentation. Verify the original system's supply voltage falls within the 5V ~ 24V range to ensure compatibility.

Q: Are both parts available in the same packaging format?

A: Both components are module-based with wire leads and chassis mount configuration. The PM-U24P is specified as slot-type, while the PM-U25-P is listed as bulk packaging. Mechanical compatibility with the slot interface should be verified during integration planning.