JS1AF-24V-F Equivalent & Substitute Parts

Part Overview

The JS1AF-24V-F is a general purpose relay manufactured by Panasonic Electric Works, featuring a SPST-NO (1 Form A) contact configuration with a 24VDC coil and 10A contact rating. This through-hole mounted relay is designed for general industrial switching applications with sealed flux protection. The part is currently obsolete, making equivalent substitutes necessary for ongoing maintenance and new designs requiring compatible functionality.

Substiute Parts

JS1AF-24V-F

Panasonic Electric WorksIn Stock: 1483JS1AF-24V-F Datasheet

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ALQ324

Panasonic Electric WorksIn Stock: 3194ALQ324 Datasheet

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J107F1AS1224VDC.36

CIT Relay and SwitchIn Stock: 3004J107F1AS1224VDC.36 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the JS1AF-24V-F is determined by the following mandatory parameters:

• Coil voltage must be 24VDC
• Contact configuration must be SPST-NO (1 Form A)
• Mounting type must be through hole with PC pin termination
• Coil type must be non-latching

Two substitute parts meet these core requirements with variations in contact rating and switching voltage specifications:

ALQ324 provides a lower contact rating (5A vs. 10A) with reduced switching voltage capability (250VAC, 30VDC vs. 250VAC, 100VDC), suitable for lower-power switching applications.

J107F1AS1224VDC.36 provides a higher contact rating (12A vs. 10A) with enhanced switching voltage capability (380VAC, 110VDC vs. 250VAC, 100VDC), suitable for higher-power switching applications.

Parameter Comparison

Engineering Selection Recommendations

ALQ324 is suitable for applications where the original 10A contact rating can be reduced to 5A without compromising circuit performance. This substitute is active in production and ROHS3 compliant. The lower coil current (8.3 mA vs. 15 mA) reduces power consumption. However, the reduced switching voltage rating (30VDC maximum vs. 100VDC) and slower response times (20 ms operate and release vs. 10 ms) must be evaluated against application requirements.

J107F1AS1224VDC.36 is suitable for applications requiring equal or higher contact current capacity (12A vs. 10A) and enhanced switching voltage capability (110VDC vs. 100VDC). This substitute is active in production and RoHS compliant. The identical coil current (15 mA), coil resistance (1.6 kOhms), and operate time (10 ms) provide closer electrical equivalence to the original part. The extended operating temperature range (-55°C ~ 125°C vs. -40°C ~ 70°C) and faster release time (5 ms vs. 10 ms) offer additional performance advantages.

Frequently Asked Questions (FAQ)

Q: Can ALQ324 directly replace JS1AF-24V-F in all applications?

A: ALQ324 is electrically compatible for the core switching function (24VDC coil, SPST-NO configuration, through-hole mounting). However, the reduced contact rating (5A vs. 10A) and switching voltage (30VDC vs. 100VDC) limit its use to lower-power circuits. Verify that your application load does not exceed 5A and 30VDC switching requirements.

Q: Is J107F1AS1224VDC.36 a direct equivalent to JS1AF-24V-F?

A: J107F1AS1224VDC.36 meets all core electrical and mechanical requirements with improved specifications. The 12A contact rating exceeds the original 10A requirement, and the 110VDC switching voltage capability exceeds the original 100VDC specification. Identical coil parameters (24VDC, 15 mA, 1.6 kOhms) and response times (10 ms operate) ensure functional compatibility.

Q: What are the packaging differences between these substitutes?

A: JS1AF-24V-F is supplied in bulk packaging, ALQ324 in box packaging, and J107F1AS1224VDC.36 in tube packaging. Packaging format does not affect electrical or mechanical compatibility; it reflects inventory and distribution methods.

Q: Are there temperature range considerations for substitute selection?

A: The original JS1AF-24V-F operates from -40°C to 70°C. ALQ324 extends this to -40°C to 85°C, and J107F1AS1224VDC.36 extends to -55°C to 125°C. For applications within the original temperature range, both substitutes are suitable. For extended temperature applications, J107F1AS1224VDC.36 is preferred.

Q: Do the contact material differences affect substitution?

A: JS1AF-24V-F and J107F1AS1224VDC.36 both use Silver Tin Oxide (AgSnO) contact material, while ALQ324 uses Silver Nickel (AgNi). Both materials are suitable for general purpose switching. Contact material selection does not prevent substitution but may affect long-term contact wear characteristics in specific applications.