JS1F-B-12V-F Equivalent & Substitute Parts

Part Overview

The JS1F-B-12V-F is a general purpose relay manufactured by Panasonic Electric Works, featuring SPDT (1 Form C) contact configuration with 12VDC coil voltage and 10A contact rating. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations. The relay is designed for through-hole mounting with PC pin termination and operates across industrial temperature ranges.

Substiute Parts

JS1F-B-12V-F

Panasonic Electric WorksIn Stock: 1030JS1F-B-12V-F Datasheet

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ALQ112

Panasonic Electric WorksIn Stock: 10202ALQ112 Datasheet

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J107F1CS1212VDC.36

CIT Relay and SwitchIn Stock: 97896J107F1CS1212VDC.36 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the JS1F-B-12V-F is determined by the following critical parameters: coil voltage (12VDC), contact configuration (SPDT), mounting type (through hole), and termination style (PC pin). All identified substitutes maintain these core electrical and mechanical characteristics.

The ALQ112 and J107F1CS1212VDC.36 are classified as functional equivalents based on matching coil voltage, contact form, mounting configuration, and termination method. However, variations exist in contact current rating, switching voltage limits, operating temperature range, and seal rating, which must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The J107F1CS1212VDC.36 from CIT Relay and Switch provides the closest electrical equivalence to the JS1F-B-12V-F, with matching coil voltage, contact form, coil current, and coil resistance. This substitute offers enhanced contact current rating (12A versus 10A), higher switching voltage capability (380VAC/110VDC), extended operating temperature range (-55°C to 125°C), and fully sealed construction. The part maintains RoHS compliance and is currently in active production status with substantial inventory availability.

The ALQ112 from Panasonic Electric Works maintains manufacturer continuity and identical operating temperature range. However, this substitute features reduced contact current rating (5A versus 10A) and lower maximum switching voltage (250VAC/30VDC), limiting its application to lower-power switching scenarios. The ALQ112 is suitable only for applications where the 5A contact rating is sufficient.

For applications requiring direct replacement without design modification, the J107F1CS1212VDC.36 is the preferred substitute. For cost-optimized solutions in reduced-load applications, the ALQ112 is acceptable within its electrical limitations.

Frequently Asked Questions (FAQ)

Q: Can the ALQ112 directly replace the JS1F-B-12V-F in all applications?

A: No. The ALQ112 has a maximum contact current rating of 5A compared to the JS1F-B-12V-F's 10A rating. It is suitable only for applications where the load current does not exceed 5A. Additionally, the ALQ112 has lower maximum switching voltage (250VAC/30VDC versus 250VAC/100VDC).

Q: What are the advantages of using J107F1CS1212VDC.36 as a substitute?

A: The J107F1CS1212VDC.36 provides higher contact current capacity (12A), extended operating temperature range (-55°C to 125°C), fully sealed construction for enhanced environmental protection, and higher switching voltage capability (380VAC/110VDC). Coil voltage, contact form, and coil current remain identical to the original part.

Q: Are there packaging differences between these substitutes?

A: Yes. The JS1F-B-12V-F uses standard packaging, the ALQ112 is supplied in box packaging, and the J107F1CS1212VDC.36 is supplied in tube packaging. Packaging format may affect handling, storage, and integration into automated assembly processes.

Q: Do all substitutes maintain the same coil resistance?

A: The J107F1CS1212VDC.36 matches the original 400 Ohm coil resistance. The ALQ112 has 360 Ohms, which is a 10% reduction. This difference may affect coil current draw and must be verified against circuit design specifications.

Q: What is the difference in contact material between these relays?

A: The JS1F-B-12V-F and J107F1CS1212VDC.36 use Silver Tin Oxide (AgSnO) contact material. The ALQ112 uses Silver Nickel (AgNi), which has different electrical and wear characteristics suitable for different load profiles.

Q: Are all substitutes RoHS compliant?

A: Yes. The JS1F-B-12V-F is RoHS Compliant, the ALQ112 is ROHS3 Compliant, and the J107F1CS1212VDC.36 is RoHS Compliant. All meet current environmental compliance requirements.