JS1A-5V General Purpose Relay - Equivalent & Substitute Parts

Part Overview

The JS1A-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 at 250VAC or 100VDC maximum switching voltage. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

JS1A-5V

Panasonic Electric WorksIn Stock: 780JS1A-5V Datasheet

Current PartRFQ

J1071AS5VDC.36

CIT Relay and SwitchIn Stock: 2509J1071AS5VDC.36 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the JS1A-5V is determined by strict alignment of the following critical parameters:

• Coil voltage must be 5VDC
• Contact configuration must be SPST-NO (1 Form A)
• Mounting type must be through-hole with PC pin termination
• Coil current and resistance must be within acceptable operating margins
• Contact rating must meet or exceed the 10A requirement
• Switching voltage capability must support the application's maximum voltage
• Operating temperature range must encompass the intended use environment

The J1071AS5VDC.36 from CIT Relay and Switch meets these substitution criteria with enhanced specifications in contact rating and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The J1071AS5VDC.36 serves as a direct functional substitute for the obsolete JS1A-5V. The substitute part maintains identical coil voltage, contact configuration, mounting type, and termination style. The CIT relay offers improved specifications including higher contact current rating (15A vs 10A) and extended operating temperature range (-40°C to 125°C vs -40°C to 70°C).

For applications operating at switching voltages exceeding 125VAC or 30VDC, the original JS1A-5V specifications (250VAC, 100VDC maximum) provide higher voltage capability. Verify application requirements against the substitute part's 125VAC/30VDC maximum switching voltage rating.

The J1071AS5VDC.36 is ROHS3 compliant and maintains active product status, ensuring long-term availability and supply chain continuity compared to the obsolete JS1A-5V.

Frequently Asked Questions (FAQ)

Q: Can the J1071AS5VDC.36 directly replace the JS1A-5V in existing designs?

A: Yes, for applications operating within the J1071AS5VDC.36 specifications. Both relays share identical 5VDC coil voltage, SPST-NO contact form, through-hole mounting, and PC pin termination. Verify that your application's switching voltage does not exceed 125VAC or 30VDC, and that the operating temperature range of -40°C to 125°C is acceptable.

Q: What is the key difference in switching voltage capability?

A: The JS1A-5V supports 250VAC or 100VDC maximum switching voltage, while the J1071AS5VDC.36 supports 125VAC or 30VDC maximum. Applications requiring higher switching voltage capability must retain the original JS1A-5V specification or identify alternative substitutes rated for higher voltages.

Q: Are there compliance differences between these relays?

A: Yes. The JS1A-5V is RoHS non-compliant, while the J1071AS5VDC.36 is ROHS3 compliant. For new designs or systems with RoHS compliance requirements, the J1071AS5VDC.36 is the appropriate selection.

Q: How do the contact current ratings compare?

A: The JS1A-5V is rated for 10A contact current, while the J1071AS5VDC.36 is rated for 15A. The substitute part provides higher current capacity, making it suitable for applications at or below the original 10A requirement.

Q: What packaging is available for the J1071AS5VDC.36?

A: The J1071AS5VDC.36 is supplied in box packaging. Verify packaging requirements for your procurement and assembly processes.