JS1-F-24V-F-6K Equivalent & Substitute Parts

Part Overview

The JS1-F-24V-F-6K is a general purpose relay manufactured by Panasonic Electric Works, featuring a Single Pole Double Throw (SPDT) contact configuration with a 24VDC coil and 10A contact rating. This through-hole mounted relay is designed for standard switching applications requiring reliable electromagnetic actuation.

The JS1-F-24V-F-6K has reached obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this relay.

Substiute Parts

JS1-F-24V-F-6K

Panasonic Electric WorksIn Stock: 874JS1-F-24V-F-6K Datasheet

Current PartRFQ

ALQ1F24

Panasonic Electric WorksIn Stock: 1404ALQ1F24 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the JS1-F-24V-F-6K is determined by the following critical parameters:

Mandatory Matching Parameters:

• Coil Voltage: 24VDC
• Contact Form: SPDT (1 Form C)
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Coil Type: Non Latching

Allowable Parameter Variations:

• Contact Rating (Current): Substitute must equal or exceed 10A
• Switching Voltage: Substitute must support at least 250VAC and 100VDC
• Operating Temperature Range: Substitute must cover the required operating envelope
• Contact Material: Alternative materials acceptable if electrical performance is maintained
• Coil Insulation: Class F or higher acceptable

The ALQ1F24 relay meets the mandatory matching parameters but exhibits reduced contact current rating (5A versus 10A) and lower maximum switching voltage (30VDC versus 100VDC). This substitute is suitable only for applications where the reduced electrical specifications are acceptable.

Parameter Comparison

Engineering Selection Recommendations

The ALQ1F24 is an active product from the same manufacturer, offering improved supply chain availability compared to the obsolete JS1-F-24V-F-6K. Both relays share identical coil voltage, contact form, mounting type, and termination style.

Selection of ALQ1F24 as a substitute is appropriate for applications where:

• Load current does not exceed 5A
• DC switching voltage does not exceed 30VDC
• Operating temperature remains within -40°C to 85°C
• AC switching at 250VAC is acceptable

The ALQ1F24 carries ROHS3 compliance and holds certifications from CQC, cURuus, and VDE, supporting regulatory requirements in multiple markets. The slightly higher coil current (16.7 mA versus 15 mA) and lower coil resistance (1.44 kOhms versus 1.6 kOhms) represent minor operational differences within acceptable engineering tolerances.

Applications requiring the full 10A contact rating or 100VDC switching capability of the original JS1-F-24V-F-6K require alternative relay solutions outside this substitute group.

Frequently Asked Questions (FAQ)

Q: Can ALQ1F24 directly replace JS1-F-24V-F-6K in all applications?

A: No. The ALQ1F24 has reduced contact current rating (5A versus 10A) and lower maximum DC switching voltage (30VDC versus 100VDC). Substitution is valid only when application requirements fall within these reduced specifications.

Q: What is the primary reason for seeking a substitute?

A: The JS1-F-24V-F-6K has reached obsolete status. The ALQ1F24 provides an active alternative from the same manufacturer with compatible form factor and coil specifications.

Q: Are the physical dimensions and pin configurations identical?

A: Both relays feature through-hole mounting with PC pin termination. Mechanical compatibility is established through matching mounting type and termination style. Verify PCB layout compatibility before implementation.

Q: How do the contact materials differ?

A: The JS1-F-24V-F-6K uses Silver Tin Oxide (AgSnO) contacts, while the ALQ1F24 uses Silver Nickel (AgNi) contacts. Both materials are suitable for general purpose switching applications with comparable reliability characteristics.

Q: What is the temperature operating range difference?

A: The JS1-F-24V-F-6K operates from -40°C to 105°C, while the ALQ1F24 operates from -40°C to 85°C. Applications requiring operation above 85°C cannot use the ALQ1F24 substitute.

Q: Are both relays RoHS compliant?

A: Yes. The JS1-F-24V-F-6K is RoHS Compliant, and the ALQ1F24 is ROHS3 Compliant. Both meet environmental compliance requirements.

Q: What certifications does the ALQ1F24 hold?

A: The ALQ1F24 carries certifications from CQC, cURuus, and VDE, supporting regulatory compliance in multiple geographic markets.