ALE74F24 Equivalent & Substitute Parts

Part Overview

The ALE74F24 is a general purpose relay manufactured by Panasonic Electric Works, configured as a SPST-NO (1 Form A) with a 24VDC coil and 16A contact rating. This through-hole mounted relay is designed for industrial control applications requiring reliable switching at 277VAC maximum. The product is currently obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and redesign applications.

Substiute Parts

ALE74F24

Panasonic Electric WorksIn Stock: 773ALE74F24 Datasheet

Current PartRFQ

PCK-124D2M,000

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALE74F24 is determined by strict equivalence across the following critical parameters:

• Coil Voltage: Must be 24VDC
• Contact Form: Must be SPST-NO (1 Form A)
• Contact Rating: Must be 16 A minimum
• Switching Voltage: Must support 277VAC maximum
• Mounting Type: Must be Through Hole
• Termination Style: Must be PC Pin, Quick Connect - 0.187" (4.7mm)
• Coil Type: Must be Non Latching
• Coil Insulation: Must be Class F

The PCK-124D2M,000 from TE Connectivity Potter & Brumfield Relays meets all these criteria, establishing it as a direct functional equivalent for the obsolete ALE74F24.

Parameter Comparison

Engineering Selection Recommendations

The PCK-124D2M,000 is the direct equivalent for ALE74F24 replacement applications. Both relays share identical electrical and mechanical specifications across all critical switching parameters. The ALE74F24 is obsolete, while the PCK-124D2M,000 maintains active product status with current manufacturing support.

Both parts carry equivalent regulatory approvals (CSA, TUV, UR, VDE for ALE74F24; TE Connectivity maintains equivalent certifications). The ALE74F24 is RoHS Compliant; the PCK-124D2M,000 status is vendor-defined but maintains Class F coil insulation and equivalent environmental specifications.

The operating temperature range of the PCK-124D2M,000 (-30°C ~ 85°C) is slightly narrower than the ALE74F24 (-40°C ~ 85°C). Applications requiring operation below -30°C must evaluate this difference against specific system requirements.

Frequently Asked Questions (FAQ)

Q: Can PCK-124D2M,000 directly replace ALE74F24 in existing circuit boards?

A: Yes. Both relays share identical coil voltage (24VDC), contact form (SPST-NO), current rating (16A), switching voltage (277VAC), mounting type (Through Hole), and termination style (PC Pin, Quick Connect - 0.187"). Physical and electrical compatibility is established.

Q: What are the differences between these two relays?

A: The primary differences are coil resistance (ALE74F24: 2.88 kOhms vs. PCK-124D2M,000: 1.15 kOhms), coil current draw (ALE74F24: 8.3 mA vs. PCK-124D2M,000: 20.8 mA), release time (ALE74F24: 25 ms vs. PCK-124D2M,000: 10 ms), and minimum operating temperature (ALE74F24: -40°C vs. PCK-124D2M,000: -30°C).

Q: Does the higher coil current of PCK-124D2M,000 affect circuit design?

A: The PCK-124D2M,000 draws 20.8 mA compared to 8.3 mA for the ALE74F24. Coil drive circuits must be verified to supply this higher current. Existing driver circuits designed for the lower current draw require evaluation.

Q: Are there temperature range limitations for substitution?

A: The PCK-124D2M,000 operates from -30°C to 85°C, while the ALE74F24 operates from -40°C to 85°C. Applications requiring operation below -30°C must confirm the substitute part meets system requirements.

Q: What is the impact of the faster release time in PCK-124D2M,000?

A: The PCK-124D2M,000 releases in 10 ms versus 25 ms for the ALE74F24. This faster release time may affect timing-sensitive applications. System-level timing validation is necessary if release time is a functional requirement.