JS1-B-6V Equivalent & Substitute Parts

Part Overview

The JS1-B-6V is a general purpose relay manufactured by Panasonic Electric Works, featuring SPDT (1 Form C) contact configuration with 10A contact rating and 6VDC coil voltage. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations. The relay is designed for through-hole mounting with sealed construction and operates across industrial temperature ranges.

Substiute Parts

JS1-B-6V

Panasonic Electric WorksIn Stock: 698JS1-B-6V Datasheet

Current PartRFQ

J1071CS6VDC.36

CIT Relay and SwitchIn Stock: 2859J1071CS6VDC.36 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The J1071CS6VDC.36 manufactured by CIT Relay and Switch qualifies as a functional substitute based on the following critical parameters:

Matching Parameters:

• Coil voltage: 6VDC (identical)
• Contact form: SPDT (1 Form C) (identical)
• Coil current: 60 mA (identical)
• Coil resistance: 100 Ohms (identical)
• Mounting type: Through hole (identical)
• Termination style: PC Pin (identical)
• Seal rating: Sealed - Fully (identical)
• Coil type: Non Latching (identical)
• Operate time: 10 ms (identical)
• Release time: 10 ms (identical)

Allowable Variations:

• Contact rating: 15A (exceeds 10A requirement; higher capacity is acceptable)
• Switching voltage: 125VAC, 30VDC (exceeds 250VAC, 100VDC requirement; lower maximum is acceptable for applications within this range)
• Operating temperature: -40°C ~ 125°C (extends upper range; maintains lower limit)
• Coil insulation: Class F (exceeds Class B requirement)
• Contact material: Silver Tin Oxide (AgSnO) versus Silver Alloy (different composition; both suitable for general purpose switching)

Parameter Comparison

Engineering Selection Recommendations

The J1071CS6VDC.36 is suitable as a substitute for the obsolete JS1-B-6V based on functional equivalence across all critical relay parameters. The substitute part maintains identical coil specifications, contact configuration, and switching timing characteristics.

The CIT relay offers advantages in product availability (Active status versus Obsolete) and regulatory compliance (ROHS3 Compliant). The higher contact current rating (15A versus 10A) provides additional margin for applications within the original design envelope.

Applications requiring switching voltages exceeding 30VDC or 125VAC should verify compatibility with the substitute part's lower maximum switching voltage specification. The extended operating temperature range (-40°C to 125°C versus -40°C to 85°C) accommodates broader environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can the J1071CS6VDC.36 directly replace the JS1-B-6V in existing designs?

A: Yes, for applications operating within the J1071CS6VDC.36 specifications. The substitute maintains identical coil voltage, contact configuration, current draw, and switching timing. Verify that your application's switching voltage and temperature requirements fall within the substitute part's rated limits.

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

A: The JS1-B-6V is rated for 10A maximum contact current, while the J1071CS6VDC.36 is rated for 15A. The higher rating of the substitute part is acceptable for applications designed for 10A operation, as it provides additional capacity margin.

Q: Are there differences in switching voltage capability?

A: Yes. The JS1-B-6V supports 250VAC and 100VDC maximum switching voltage. The J1071CS6VDC.36 supports 125VAC and 30VDC maximum. For applications switching voltages below these limits, the substitute is compatible. Applications requiring higher switching voltages must use the original part or identify alternative substitutes.

Q: What is the significance of the different contact materials?

A: The JS1-B-6V uses Silver Alloy contacts, while the J1071CS6VDC.36 uses Silver Tin Oxide (AgSnO). Both materials are suitable for general purpose relay applications. Contact material selection affects wear characteristics and performance in specific load conditions; both compositions are acceptable for standard switching applications.

Q: Does the substitute part meet current regulatory requirements?

A: The J1071CS6VDC.36 is ROHS3 compliant, meeting current environmental regulations. The JS1-B-6V regulatory status is not specified in available documentation. For new designs or systems requiring regulatory compliance documentation, the CIT substitute part provides verified compliance.

Q: Are there packaging differences between these parts?

A: The JS1-B-6V packaging is listed as standard, while the J1071CS6VDC.36 is supplied in Box packaging. Both use identical PC Pin termination and through-hole mounting, ensuring mechanical compatibility on printed circuit boards.