Equivalent & Substitute Parts for JS1APF-B-24V-F

Part Overview

The JS1APF-B-24V-F is a general purpose relay manufactured by Panasonic Electric Works, configured as a SPST-NO (1 Form A) with a 24VDC coil and 10A contact rating. This through-hole mounted relay is designed for general switching applications requiring sealed flux protection and Class B coil insulation. The product is currently obsolete, making equivalent substitute parts necessary for ongoing maintenance, repair, and new design implementations where this relay specification remains applicable.

Substiute Parts

JS1APF-B-24V-F

Panasonic Electric WorksIn Stock: 781JS1APF-B-24V-F Datasheet

Current PartRFQ

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 JS1APF-B-24V-F is determined by the following critical parameters:

• Coil Voltage: Must be 24VDC to ensure direct compatibility with existing control circuits
• Contact Form: Must be SPST-NO (1 Form A) to maintain single-pole, single-throw switching functionality
• Mounting Type: Must be Through Hole to fit existing PCB layouts and mechanical assemblies
• Termination Style: Must be PC Pin for direct board mounting compatibility
• Coil Type: Must be Non Latching for standard momentary switching behavior

Two substitute parts meet these core requirements with variations in contact rating, switching voltage capability, and operational characteristics:

ALQ324 (Panasonic Electric Works): Meets all core substitution criteria with reduced contact rating (5A vs. 10A) and lower switching voltage capability (250VAC, 30VDC). Suitable for applications with lower current demands.

J107F1AS1224VDC.36 (CIT Relay and Switch): Meets all core substitution criteria with enhanced contact rating (12A vs. 10A) and higher switching voltage capability (380VAC, 110VDC). Provides superior performance headroom for demanding applications.

Parameter Comparison

Engineering Selection Recommendations

ALQ324 Selection Criteria: Choose this substitute when the application requires lower current switching (≤5A) and operates within the reduced switching voltage range (250VAC, 30VDC maximum). This part is actively manufactured by Panasonic Electric Works and carries ROHS3 compliance with CQC, cURuus, and VDE approvals. The lower coil current (8.3 mA) reduces control circuit power requirements. Slower switching times (20 ms operate and release) are acceptable for non-time-critical applications.

J107F1AS1224VDC.36 Selection Criteria: Choose this substitute when the application requires higher current capacity (12A) or operates at higher switching voltages (380VAC, 110VDC maximum). This part is actively manufactured by CIT Relay and Switch with RoHS compliance and REACH unaffected status. The extended operating temperature range (-55°C ~ 125°C) accommodates more demanding thermal environments. Faster release time (5 ms) and matching operate time (10 ms) to the original part provide equivalent switching performance. Class F coil insulation provides enhanced thermal stability.

Both substitutes maintain through-hole PC pin termination, non-latching coil operation, and 24VDC coil voltage compatibility with the obsolete JS1APF-B-24V-F.

Frequently Asked Questions (FAQ)

Q: Can ALQ324 directly replace JS1APF-B-24V-F in all applications?

A: ALQ324 is mechanically and electrically compatible for mounting and coil operation. However, the reduced contact rating (5A vs. 10A) and lower switching voltage capability (250VAC, 30VDC vs. 250VAC, 100VDC) limit its use to applications within these lower specifications. Verify your circuit's actual current and voltage requirements before substitution.

Q: What are the key differences between ALQ324 and J107F1AS1224VDC.36?

A: ALQ324 offers lower coil current consumption (8.3 mA) and slower switching times (20 ms), while J107F1AS1224VDC.36 provides higher current capacity (12A), higher switching voltage capability (380VAC, 110VDC), faster release time (5 ms), and extended temperature range (-55°C ~ 125°C). Contact material differs: ALQ324 uses Silver Nickel (AgNi) while J107F1AS1224VDC.36 uses Silver Tin Oxide (AgSnO), matching the original part.

Q: Are there packaging differences between these substitutes?

A: Yes. JS1APF-B-24V-F uses standard packaging, ALQ324 is packaged in boxes, and J107F1AS1224VDC.36 is supplied in tubes. Verify packaging compatibility with your procurement and assembly processes.

Q: Do all three relays have the same coil resistance?

A: No. JS1APF-B-24V-F and J107F1AS1224VDC.36 both have 1.6 kOhms coil resistance, while ALQ324 has 2.88 kOhms. This affects control circuit design and must be considered when selecting a substitute.

Q: Which substitute has the best compliance certifications?

A: ALQ324 carries the most comprehensive approvals (CQC, cURuus, VDE) in addition to ROHS3 compliance. J107F1AS1224VDC.36 has RoHS compliance and REACH unaffected status. Both are suitable for regulated applications; verify specific certification requirements for your end-use market.