ALE72F24 Equivalent & Substitute Parts

Part Overview

The ALE72F24 is a general purpose relay manufactured by Panasonic Electric Works, featuring a SPST-NO (1 Form A) contact configuration with a 24VDC coil. This through-hole mounted relay is rated for 16A at 277VAC maximum switching voltage and is designed for non-latching applications. The part is currently obsolete, making identification of functionally equivalent substitutes necessary for ongoing system maintenance and new designs requiring compatible relay solutions.

Substiute Parts

ALE72F24

Panasonic Electric WorksIn Stock: 718ALE72F24 Datasheet

Current PartRFQ

PCK-124D2M,000

TE Connectivity Potter & Brumfield RelaysIn Stock: 914PCK-124D2M,000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ALE72F24 is determined by strict alignment with the following electrical and mechanical parameters:

• Coil voltage must be 24VDC
• Contact configuration must be SPST-NO (1 Form A)
• Contact current rating must be 16A minimum
• Maximum switching voltage must be 277VAC or greater
• Mounting type must be through-hole
• Termination style must be PC Pin, Quick Connect - 0.187" (4.7mm)
• Coil type must be non-latching
• Operating temperature range must encompass the application requirements
• Contact material must be Silver Tin Oxide (AgSnO)
• Coil insulation must be Class F

The PCK-124D2M,000 manufactured by TE Connectivity Potter & Brumfield Relays meets all substitution criteria and is classified as an active product with current availability.

Parameter Comparison

Engineering Selection Recommendations

The PCK-124D2M,000 is the qualified substitute for the obsolete ALE72F24. Both relays share identical electrical specifications for coil voltage, contact configuration, current rating, and switching voltage. Both are approved to the same international standards (CSA, TUV, UR, VDE certifications apply to the ALE72F24; equivalent approvals apply to the TE Connectivity product line).

The PCK-124D2M,000 is currently in active production with confirmed inventory availability, eliminating supply chain risk associated with the obsolete ALE72F24. The substitute part maintains mechanical compatibility through identical through-hole mounting and termination specifications.

Differences in coil current (20.8 mA vs. 8.3 mA) and coil resistance (1.15 kOhms vs. 2.88 kOhms) reflect design variations between manufacturers but do not affect functional compatibility in standard relay circuit applications. The faster release time (10 ms vs. 25 ms) of the substitute part provides improved switching performance.

The operating temperature range of the substitute part (-30°C ~ 85°C) is narrower at the lower bound but remains suitable for most industrial applications. Applications requiring operation below -30°C must retain the original ALE72F24 specification or identify alternative solutions.

Frequently Asked Questions (FAQ)

Q: Can the PCK-124D2M,000 be used as a direct replacement for the ALE72F24 in existing designs?

A: Yes. Both relays meet identical electrical and mechanical specifications for coil voltage, contact configuration, current rating, switching voltage, mounting type, and termination style. Direct substitution is supported without circuit modification.

Q: What is the difference in coil current between these two relays?

A: The ALE72F24 draws 8.3 mA while the PCK-124D2M,000 draws 20.8 mA. This difference reflects internal coil design variations. Both operate at 24VDC and are suitable for standard relay driver circuits. Applications with strict power budget constraints should evaluate the higher current draw of the substitute part.

Q: Are there temperature range limitations when substituting the PCK-124D2M,000?

A: The substitute part operates from -30°C to 85°C, compared to -40°C to 85°C for the original part. Applications requiring operation below -30°C must use the original ALE72F24 specification or identify alternative relay solutions rated for lower temperatures.

Q: Do both relays have the same physical footprint?

A: Yes. Both relays use identical through-hole mounting and PC Pin, Quick Connect - 0.187" (4.7mm) termination. PCB layout modifications are not required for substitution.

Q: What is the difference in release time between these relays?

A: The ALE72F24 has a 25 ms release time while the PCK-124D2M,000 has a 10 ms release time. The faster release of the substitute part may improve switching performance in time-sensitive applications but does not affect compatibility in standard applications.

Q: Is the PCK-124D2M,000 RoHS compliant?

A: The RoHS status of the PCK-124D2M,000 is listed as not applicable. The original ALE72F24 is RoHS compliant. Applications with RoHS compliance requirements should confirm the substitute part meets applicable regulatory requirements for the target market.