ARX1024 Equivalent & Substitute Parts

Part Overview

The ARX1024 is a non-latching RF relay manufactured by Panasonic Electric Works, designed for 24VDC coil operation with SPDT (1 Form C) contact configuration and 500mA contact rating. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The ARX1024 operates across industrial temperature ranges (-40°C to 70°C) with gold-plated contacts and through-hole PC pin termination, typical of legacy relay applications requiring reliable switching performance in RF environments.

Substiute Parts

ARX1024

Panasonic Electric WorksIn Stock: 753ARX1024 Datasheet

Current PartRFQ

ARN10A24

Panasonic Electric WorksIn Stock: 2257ARN10A24 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the ARX1024 is determined by strict alignment of the following critical parameters:

Mandatory Matching Criteria:

• Coil voltage: 24VDC (exact match required)
• Contact form: SPDT (1 Form C) configuration
• Coil type: Non-latching operation
• Contact material: Gold plating
• Must operate voltage: 18VDC minimum
• Must release voltage: 2.4VDC maximum

Allowable Variations:

• Contact rating current: ARX1024 specifies 500mA; substitute parts may operate at different current ratings provided the application requirement does not exceed the substitute's rating
• Mounting type and termination style: May differ based on PCB design requirements (through-hole vs. surface mount)
• Operating temperature range: Substitute may extend the upper or lower temperature limit
• Switching voltage maximum: Substitute specifications must not be lower than application requirements
• Coil power and resistance: Inherent to coil design; variations acceptable if voltage and current characteristics remain compatible

The ARN10A24 qualifies as a substitute based on matching coil voltage (24VDC), contact form (SPDT), coil type (non-latching), contact material (gold plating), and voltage threshold specifications.

Parameter Comparison

Engineering Selection Recommendations

The ARN10A24 is electrically compatible with the ARX1024 for applications requiring 24VDC coil operation, SPDT switching, and gold-plated contacts with specified voltage thresholds. Both components share identical coil voltage, contact form, coil type, and voltage operating parameters.

Key Considerations for Selection:

The ARN10A24 is an active product with current manufacturing status, whereas the ARX1024 is obsolete. This distinction is significant for long-term supply chain planning and component availability.

The ARN10A24 incorporates sealed flux protection and achieves faster switching times (5ms operate and release versus 10ms and 6ms respectively for the ARX1024), which may provide performance benefits in time-sensitive applications.

The ARN10A24 extends the operating temperature range to 85°C, providing additional thermal margin compared to the ARX1024's 70°C maximum.

The ARN10A24 is RoHS compliant, whereas RoHS status for the ARX1024 is not specified. This compliance status is relevant for applications subject to environmental regulations.

Critical Design Constraint:

The ARN10A24 uses surface-mount technology with gull-wing termination, whereas the ARX1024 uses through-hole PC pin termination. Direct substitution on existing PCBs designed for the ARX1024 is not possible without PCB redesign and revalidation.

Frequently Asked Questions (FAQ)

Q: Can the ARN10A24 directly replace the ARX1024 on an existing PCB?

A: No. The ARX1024 uses through-hole PC pin termination, while the ARN10A24 uses surface-mount gull-wing termination. PCB layout modification and revalidation are required for substitution.

Q: Are the coil voltage requirements identical between these parts?

A: Yes. Both the ARX1024 and ARN10A24 operate on 24VDC coil voltage with identical must-operate (18VDC) and must-release (2.4VDC) voltage thresholds.

Q: What is the contact current rating for the ARN10A24?

A: The contact current rating for the ARN10A24 is not specified in the provided data. Application requirements must be evaluated against manufacturer datasheets before final selection.

Q: Does the faster switching time of the ARN10A24 affect compatibility?

A: The ARN10A24 operates faster (5ms versus 10ms operate time and 5ms versus 6ms release time). For applications with timing-dependent circuits, this difference must be evaluated. For standard switching applications, faster operation is generally not detrimental.

Q: Is the ARN10A24 suitable for the same temperature range as the ARX1024?

A: The ARN10A24 supports -40°C to 85°C, which encompasses the ARX1024 range of -40°C to 70°C. The ARN10A24 provides additional thermal margin at elevated temperatures.

Q: What does "sealed flux protection" on the ARN10A24 mean?

A: Sealed flux protection indicates the relay contacts are protected from flux contamination during manufacturing and assembly, improving long-term contact reliability and reducing maintenance requirements.

Q: Why is the ARX1024 listed as obsolete?

A: Obsolete status indicates the ARX1024 is no longer manufactured by Panasonic Electric Works. The ARN10A24 represents the active product line continuation for this relay category.