PM-K24-R Equivalent & Substitute Parts

Part Overview

The PM-K24-R is an optical sensor manufactured by Panasonic Industrial Automation Sales, designed as a through-beam slot-type module with NPN output configuration and selectable Dark-ON/Light-ON operation. This component is classified as obsolete, making identification of compatible substitute parts essential for system maintenance and new design implementations. The through-beam sensing method with 0.197" (5mm) sensing distance and wire lead connectivity defines its primary application scope.

Key Parameters

Parameter	PM-K24-R Value
Sensing Distance	0.197" (5mm)
Sensing Method	Through-Beam
Output Configuration	NPN - Dark-ON/Light-ON - Selectable
Current - DC Forward (If) (Max)	50 mA
Current - Collector (Ic) (Max)	15 mA
Voltage - Collector Emitter Breakdown (Max)	30 V
Response Time	20µs
Operating Temperature Range	-25°C ~ 55°C
Mounting Type	Chassis Mount
Package / Case	Module, Wire Leads, Slot Type
Product Status	Obsolete
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitute identification for the PM-K24-R is based on the following critical parameters that must align for functional compatibility:

Sensing Method: Through-beam operation is mandatory for direct substitution
Output Configuration: NPN output type with open collector topology
Response Time: 20µs specification must be maintained
Operating Temperature Range: -25°C ~ 55°C compatibility
Mounting Type: Chassis mount configuration
Package Type: Module with wire leads connectivity

The PM-K25-R qualifies as a substitute based on these core parameters. While the sensing distance increases from 0.197" (5mm) to 0.236" (6mm), both components maintain identical through-beam sensing methodology, NPN output configuration, response time, operating temperature range, and chassis mount design. The voltage supply specification (5V ~ 24V) and current supply (15 mA) of the PM-K25-R remain within acceptable operating parameters for systems designed for the PM-K24-R.

Parameter Comparison

Parameter	PM-K24-R	PM-K25-R	Compatibility Notes
Sensing Distance	0.197" (5mm)	0.236" (6mm)	Increased gap tolerance; verify mechanical fit
Sensing Method	Through-Beam	Through-Beam	Identical
Output Configuration	NPN - Dark-ON/Light-ON - Selectable	NPN - Open Collector	Both NPN topology; PM-K25-R lacks selectable mode
Current - Collector (Ic) (Max)	15 mA	Not specified	PM-K24-R specification applies
Response Time	20µs	20µs	Identical
Operating Temperature Range	-25°C ~ 55°C	-25°C ~ 55°C (TA)	Identical
Mounting Type	Chassis Mount	Chassis Mount	Identical
Package / Case	Module, Wire Leads, Slot Type	Module, Wire Leads	Both wire lead modules; PM-K25-R slot type not specified
Product Status	Obsolete	Active	PM-K25-R actively manufactured
RoHS Status	RoHS Compliant	ROHS3 Compliant	Both compliant; PM-K25-R meets current standard

Engineering Selection Recommendations

The PM-K25-R serves as the primary substitute for the obsolete PM-K24-R based on maintained core functionality and active product status. Selection of the PM-K25-R is supported by:

Product Availability: PM-K25-R is actively manufactured with 898 pcs in stock, whereas PM-K24-R is obsolete
Regulatory Compliance: PM-K25-R meets ROHS3 compliance, representing current environmental standards
Functional Continuity: Identical response time (20µs), operating temperature range (-25°C ~ 55°C), and through-beam sensing methodology ensure operational compatibility
Output Topology: Both components utilize NPN open collector output, maintaining signal interface compatibility with existing control circuits

Design consideration: The increased sensing distance of PM-K25-R (0.236" vs 0.197") requires mechanical verification to confirm slot width compatibility in existing installations. The PM-K25-R lacks the selectable Dark-ON/Light-ON feature of the PM-K24-R; application logic must accommodate fixed output polarity.

Frequently Asked Questions (FAQ)

Q: Can PM-K25-R directly replace PM-K24-R in existing assemblies?

A: Functional substitution is supported by identical sensing method, response time, operating temperature, and NPN output topology. Mechanical verification is required due to increased sensing distance (6mm vs 5mm). Confirm slot width accommodation and output polarity requirements before installation.

Q: What is the primary difference between PM-K24-R and PM-K25-R?

A: The PM-K25-R features a larger sensing distance (0.236" vs 0.197") and operates on 5V ~ 24V supply voltage. The PM-K24-R offers selectable Dark-ON/Light-ON output, while PM-K25-R provides fixed NPN open collector output. Both maintain 20µs response time and -25°C ~ 55°C operating range.

Q: Why is PM-K24-R classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The PM-K25-R represents the active product line continuation within the PM series optical sensor family.

Q: Are there compliance differences between the two parts?

A: PM-K24-R is RoHS Compliant. PM-K25-R meets ROHS3 Compliant specification, representing the current environmental compliance standard. Both components carry EAR99 ECCN classification and identical HTSUS code (8543.70.9860).

Q: What electrical parameters must be verified for substitution?

A: Verify that control circuits accept NPN open collector output at 15 mA maximum collector current. Confirm supply voltage compatibility with PM-K25-R specification (5V ~ 24V). Validate that application logic accommodates fixed output polarity, as the selectable Dark-ON/Light-ON feature is not available on PM-K25-R.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message