JS1AF-5V Equivalent & Substitute Parts

Part Overview

The JS1AF-5V is a general purpose relay manufactured by Panasonic Electric Works, featuring a SPST-NO (1 Form A) contact configuration with a 5VDC coil. This through-hole mounted relay is rated for 10A switching capacity at 250VAC or 100VDC maximum. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and component procurement.

Substiute Parts

JS1AF-5V

Panasonic Electric WorksIn Stock: 688JS1AF-5V Datasheet

Current PartRFQ

JS1AF-F-5V-F

Panasonic Electric WorksIn Stock: 1113JS1AF-F-5V-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the JS1AF-5V is determined by strict equivalence across the following critical parameters:

• Coil voltage: 5VDC
• Contact configuration: SPST-NO (1 Form A)
• Current rating: 10 A minimum
• Switching voltage capability: 250VAC, 100VDC or greater
• Mounting type: Through hole with PC pin termination
• Coil resistance: 69.4 Ohms
• Operate and release times: 10 ms each
• Must operate and release voltages: 4.6 VDC and 0.5 VDC respectively

The JS1AF-F-5V-F qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. Variations in operating temperature range, contact material composition, and coil insulation class do not preclude substitution when the primary functional requirements are met.

Parameter Comparison

Engineering Selection Recommendations

The JS1AF-F-5V-F is a direct functional equivalent to the JS1AF-5V. Both parts share identical electrical characteristics, coil specifications, and mechanical mounting requirements. The substitute part offers an extended operating temperature range (-40°C to 105°C versus -40°C to 70°C) and RoHS compliance certification, providing enhanced environmental performance and regulatory alignment for new designs.

Selection between these parts should be based on application temperature requirements and regulatory compliance mandates. The JS1AF-F-5V-F is suitable for applications requiring extended temperature operation or RoHS compliance. Both parts maintain equivalent switching performance and contact ratings for standard industrial relay applications.

Frequently Asked Questions (FAQ)

Q: Can JS1AF-F-5V-F replace JS1AF-5V in existing designs?

A: Yes. The JS1AF-F-5V-F is electrically and mechanically equivalent. Coil voltage, contact configuration, current rating, switching voltage, and timing specifications are identical. Both parts use through-hole PC pin termination and are compatible with existing PCB layouts.

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

A: The JS1AF-5V uses Silver Alloy contacts, while the JS1AF-F-5V-F uses Silver Tin Oxide (AgSnO) contacts. Both materials are suitable for general purpose relay applications at the specified switching voltages and currents. Contact material selection does not affect substitution eligibility.

Q: Why does the substitute part have a higher maximum operating temperature?

A: The JS1AF-F-5V-F is rated for -40°C to 105°C operation, compared to -40°C to 70°C for the JS1AF-5V. This extended range reflects the coil insulation class (Class F) and internal design of the substitute part. Applications operating within the original -40°C to 70°C range are unaffected by this difference.

Q: Is RoHS compliance a factor in substitution?

A: RoHS compliance is a regulatory and procurement consideration, not a functional substitution criterion. The JS1AF-F-5V-F carries RoHS Compliant certification, making it suitable for applications with regulatory requirements. The JS1AF-5V does not specify RoHS status. Both parts are functionally equivalent for switching applications.

Q: Are there packaging differences between these parts?

A: The JS1AF-5V is specified with "-" packaging, while the JS1AF-F-5V-F is supplied in Bulk packaging. Both parts use identical through-hole PC pin termination. Packaging differences do not affect electrical or mechanical compatibility.

Q: What is the coil insulation class difference?

A: The JS1AF-5V does not specify coil insulation class. The JS1AF-F-5V-F specifies Class F insulation, which supports the extended operating temperature range. This does not affect substitution for applications within the original temperature specification.