JS1A-24V Equivalent & Substitute Parts

Part Overview

The JS1A-24V is a general purpose relay manufactured by Panasonic Electric Works, configured as a SPST-NO (1 Form A) with a 24VDC coil and 10A contact rating. This through-hole mounted relay is designed for switching applications up to 250VAC or 100VDC. The product is currently obsolete, making equivalent substitutes necessary for new designs and ongoing maintenance applications requiring compatible relay functionality.

Substiute Parts

JS1A-24V

Panasonic Electric WorksIn Stock: 796JS1A-24V Datasheet

Current PartRFQ

J1071AS24VDC.36

CIT Relay and SwitchIn Stock: 2726J1071AS24VDC.36 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the JS1A-24V is determined by the following critical parameters that must remain consistent:

• Coil Voltage: 24VDC (exact match required)
• Contact Form: SPST-NO (1 Form A) (exact match required)
• Coil Current: 15 mA (exact match required)
• Mounting Type: Through Hole (exact match required)
• Termination Style: PC Pin (exact match required)
• Coil Resistance: 1.6 kOhms (exact match required)

The J1071AS24VDC.36 from CIT Relay and Switch meets all critical substitution criteria. While the contact rating differs (15A versus 10A), this represents an upgrade in capability that maintains backward compatibility with the original application requirements.

Parameter Comparison

Engineering Selection Recommendations

The J1071AS24VDC.36 is the qualified substitute for the JS1A-24V based on the following factors:

Product Status: The J1071AS24VDC.36 maintains active product status, ensuring ongoing availability and supply chain continuity compared to the obsolete JS1A-24V.

Compliance: The J1071AS24VDC.36 is ROHS3 compliant, meeting current regulatory requirements for new designs and manufacturing. The original JS1A-24V is RoHS non-compliant.

Functional Equivalence: Both relays share identical coil voltage (24VDC), contact form (SPST-NO), coil current (15 mA), coil resistance (1.6 kOhms), and switching response times (10 ms operate/release). These parameters ensure functional compatibility in existing circuit designs.

Contact Rating: The J1071AS24VDC.36 provides a higher contact rating (15A versus 10A), offering improved capability margins for applications originally designed for the 10A JS1A-24V.

Temperature Range: The J1071AS24VDC.36 supports an extended operating temperature range (-40°C to 125°C) compared to the JS1A-24V (-40°C to 70°C), providing greater flexibility for thermal environments.

Frequently Asked Questions (FAQ)

Q: Can the J1071AS24VDC.36 directly replace the JS1A-24V in existing designs?

A: Yes. Both relays share identical coil voltage, contact form, coil current, and switching response times. The higher contact rating of the J1071AS24VDC.36 (15A) is backward compatible with applications designed for 10A operation.

Q: What are the key differences between these two relays?

A: The primary differences are contact rating (15A versus 10A), maximum switching voltage (125VAC/30VDC versus 250VAC/100VDC), operating temperature range (-40°C to 125°C versus -40°C to 70°C), and product status (active versus obsolete). The J1071AS24VDC.36 is also ROHS3 compliant.

Q: Are the physical dimensions and pin configurations identical?

A: Both relays use through-hole mounting with PC pin termination. Mechanical compatibility is ensured by matching mounting type and termination style.

Q: Does the lower maximum switching voltage of the J1071AS24VDC.36 affect compatibility?

A: Application compatibility depends on the actual switching voltage requirements of your circuit. If your design operates at or below 125VAC or 30VDC, the J1071AS24VDC.36 is suitable. Applications requiring higher switching voltages should evaluate this parameter against specific circuit requirements.

Q: What is the packaging difference between these parts?

A: The JS1A-24V is supplied without specified packaging, while the J1071AS24VDC.36 is packaged in boxes. Both are available in new original stock.