JS1-24V-FT Equivalent & Substitute Parts

Part Overview

The JS1-24V-FT 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 general industrial switching applications with sealed construction and Class E coil insulation.

The JS1-24V-FT 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

JS1-24V-FT

Panasonic Electric WorksIn Stock: 814JS1-24V-FT Datasheet

Current PartRFQ

ALQ124

Panasonic Electric WorksIn Stock: 7726ALQ124 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the JS1-24V-FT is determined by the following critical parameters:

Primary Matching Criteria:

• Coil voltage: 24VDC (exact match required)
• Contact form: SPDT (1 Form C) configuration
• Mounting type: Through hole with PC pin termination
• Coil type: Non latching operation

Secondary Compatibility Factors:

• Contact rating and switching voltage must meet or exceed application requirements
• Operating temperature range must encompass the intended operating environment
• RoHS compliance status for regulatory alignment

The ALQ124 satisfies the primary matching criteria with identical coil voltage, contact form, mounting type, and termination style. However, the ALQ124 exhibits reduced contact current rating (5A versus 10A) and lower maximum switching voltage (30VDC versus 100VDC), requiring application-level verification before substitution.

Parameter Comparison

Engineering Selection Recommendations

The ALQ124 is an active product from the same manufacturer with confirmed RoHS3 compliance, providing improved regulatory alignment compared to the obsolete JS1-24V-FT. The ALQ124 maintains identical coil voltage, contact configuration, and mounting characteristics.

Selection of the ALQ124 requires verification that the application load does not exceed 5A continuous current or 150W maximum switching power. Applications requiring the full 10A contact rating of the JS1-24V-FT cannot use the ALQ124 as a direct substitute. Similarly, circuits switching DC voltages above 30VDC require confirmation that the ALQ124 switching voltage specification is adequate.

The ALQ124 offers an extended operating temperature range (-40°C to 85°C) compared to the JS1-24V-FT (-40°C to 70°C), providing additional thermal margin for high-temperature environments.

Frequently Asked Questions (FAQ)

Q: Can the ALQ124 directly replace the JS1-24V-FT in all applications?

A: No. The ALQ124 has a reduced contact current rating (5A versus 10A) and lower maximum DC switching voltage (30VDC versus 100VDC). Substitution is valid only for applications where load current does not exceed 5A and DC switching voltage does not exceed 30VDC.

Q: What are the key differences between these relays?

A: Both relays share identical 24VDC coil voltage, SPDT contact form, through-hole mounting, and PC pin termination. The ALQ124 has lower contact current capacity, lower DC switching voltage rating, slightly higher coil current draw, and an extended operating temperature range. The ALQ124 is an active product with ROHS3 compliance.

Q: Are there packaging differences between JS1-24V-FT and ALQ124?

A: Yes. The JS1-24V-FT uses standard packaging, while the ALQ124 is supplied in box packaging. Both use identical through-hole PC pin termination suitable for printed circuit board assembly.

Q: What compliance certifications does the ALQ124 carry?

A: The ALQ124 holds CQC, cURuus, and VDE approvals in addition to ROHS3 compliance. The JS1-24V-FT is RoHS Compliant. Both relays are classified as EAR99 for export control purposes.

Q: Can I use the ALQ124 in applications requiring -40°C to 70°C operation?

A: Yes. The ALQ124 operating temperature range (-40°C to 85°C) encompasses the JS1-24V-FT range (-40°C to 70°C), making it suitable for this thermal environment.