JS1A-F-5V-F Equivalent & Substitute Parts

Part Overview

The JS1A-F-5V-F is a general purpose relay manufactured by Panasonic Electric Works, configured as a SPST-NO (1 Form A) with a 5VDC coil and 10A contact rating. This through-hole mounted relay features sealed construction with Class F coil insulation and is designed for applications requiring reliable switching of AC and DC loads.

The JS1A-F-5V-F is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this relay.

Substiute Parts

JS1A-F-5V-F

Panasonic Electric WorksIn Stock: 1144JS1A-F-5V-F Datasheet

Current PartRFQ

ALQ3F05

Panasonic Electric WorksIn Stock: 2545ALQ3F05 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the JS1A-F-5V-F is evaluated based on the following critical parameters that define functional equivalence:

Mandatory Matching Parameters:

• Coil Voltage: 5VDC
• Contact Form: SPST-NO (1 Form A)
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Coil Insulation: Class F

Allowable Variation Parameters:

• Contact Rating (Current): The substitute may have a lower current rating if the application does not require the full 10A capacity
• Switching Voltage: The substitute may have lower maximum switching voltage if application requirements permit
• Coil Current: May vary based on coil design
• Operating Temperature Range: May be narrower than the original
• Contact Material: May differ while maintaining switching performance
• Seal Rating: May vary based on environmental requirements

The ALQ3F05 meets the mandatory matching parameters and is therefore classified as a functional substitute for the JS1A-F-5V-F.

Parameter Comparison

Engineering Selection Recommendations

The ALQ3F05 is an active product from the same manufacturer and represents a viable substitute for the obsolete JS1A-F-5V-F. Both relays share identical coil voltage, contact form, mounting type, and termination style.

Key considerations for selection:

The ALQ3F05 has a reduced contact current rating of 5A compared to the 10A rating of the JS1A-F-5V-F. This substitution is appropriate only for applications where the load current does not exceed 5A.

The ALQ3F05 supports a maximum DC switching voltage of 30VDC, lower than the 100VDC maximum of the JS1A-F-5V-F. Applications requiring switching of higher DC voltages are not suitable for this substitute.

The ALQ3F05 operates within a narrower temperature range (-40°C to 85°C) compared to the JS1A-F-5V-F (-40°C to 105°C). Applications requiring operation above 85°C are not compatible with this substitute.

The ALQ3F05 has lower coil current (40 mA versus 72 mA), reducing power consumption and heat generation in the control circuit.

Both parts maintain RoHS compliance and Class F coil insulation. The ALQ3F05 carries ROHS3 compliance and holds certifications from CQC, cURuus, and VDE.

Frequently Asked Questions (FAQ)

Q: Can the ALQ3F05 directly replace the JS1A-F-5V-F in all applications?

A: No. The ALQ3F05 is suitable only for applications where the load current does not exceed 5A and the DC switching voltage does not exceed 30VDC. The operating temperature range is also limited to -40°C to 85°C. Verify that your application requirements fall within these parameters before substitution.

Q: What is the primary difference between these two relays?

A: The main differences are contact current rating (10A versus 5A), maximum DC switching voltage (100VDC versus 30VDC), and operating temperature range (105°C versus 85°C maximum). The ALQ3F05 also has lower coil current consumption.

Q: Are both relays pin-compatible?

A: Both relays use PC Pin termination and through-hole mounting. Physical compatibility depends on PCB layout and pin spacing, which are not specified in the provided data. Verify mechanical fit and pin configuration before installation.

Q: What certifications does the ALQ3F05 carry?

A: The ALQ3F05 holds certifications from CQC, cURuus, and VDE, and is ROHS3 compliant.

Q: Why is the JS1A-F-5V-F obsolete?

A: Product obsolescence is determined by the manufacturer. The ALQ3F05 is the active equivalent from Panasonic Electric Works for applications within its specified electrical and thermal limits.