ARX1206 Equivalent & Substitute Parts

Part Overview

The ARX1206 is a latching dual-coil relay manufactured by Panasonic Electric Works, designed for RF applications with SPDT contact configuration and 500 mA current rating at 6VDC coil voltage. The product is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations. This reference provides qualified substitute options based on electrical and mechanical compatibility parameters.

Substiute Parts

ARX1206

Panasonic Electric WorksIn Stock: 955ARX1206 Datasheet

Current PartRFQ

ARN12A4H

Panasonic Electric WorksIn Stock: 816ARN12A4H Datasheet

SimilarRFQ

DS1E-SL2-DC6V

Panasonic Electric WorksIn Stock: 859DS1E-SL2-DC6V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ARX1206 is determined by the following critical parameters:

• Coil Voltage Compatibility: Substitute parts must operate at 6VDC or lower voltage ratings that maintain functional equivalence within the system design
• Contact Configuration: SPDT (1 Form C) contact form is mandatory for direct substitution
• Coil Type: Latching, dual-coil operation must be preserved
• Contact Rating: Current handling capability must meet or exceed 500 mA minimum requirement
• Mounting and Termination: Through-hole mounting with PC pin termination preferred for direct PCB compatibility
• Operating Temperature Range: Minimum -40°C ~ 70°C operational envelope required

Two substitute parts meet these criteria with varying trade-offs in mounting technology and current rating capacity.

Parameter Comparison

Engineering Selection Recommendations

DS1E-SL2-DC6V is the primary substitute for ARX1206 applications. This part maintains identical coil voltage (6VDC), through-hole mounting, and PC pin termination, ensuring direct PCB compatibility without layout modifications. Contact current rating of 2 A exceeds the ARX1206 requirement of 500 mA, providing design margin. The part is active in production with RoHS compliance certification. Operating temperature range matches the original specification at -40°C ~ 70°C.

ARN12A4H serves as an alternative substitute where surface-mount technology is acceptable in the design. This part operates at 4.5VDC coil voltage, requiring verification that the system power supply and control circuitry can accommodate the lower voltage threshold. The part is active in production with RoHS compliance and extended operating temperature range to 85°C. Surface-mount gull-wing termination requires PCB redesign and is not suitable for direct replacement in through-hole applications. Contact current rating is not specified in available data.

Selection between these substitutes depends on mounting technology constraints and system voltage compatibility requirements.

Frequently Asked Questions (FAQ)

Q: Can ARN12A4H replace ARX1206 in existing through-hole PCB designs?

A: No. ARN12A4H uses surface-mount gull-wing termination while ARX1206 uses through-hole PC pin termination. Direct PCB substitution is not possible without board redesign.

Q: What is the primary difference between the two substitute options?

A: DS1E-SL2-DC6V maintains through-hole mounting and 6VDC coil voltage, matching the original ARX1206 form factor. ARN12A4H requires surface-mount capability and operates at 4.5VDC, necessitating system voltage verification.

Q: Does DS1E-SL2-DC6V meet the 500 mA contact current requirement?

A: Yes. DS1E-SL2-DC6V is rated for 2 A contact current, which exceeds the ARX1206 specification of 500 mA.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both DS1E-SL2-DC6V and ARN12A4H are RoHS compliant. ARX1206 RoHS status is not specified in available documentation.

Q: What is the operating temperature range for each substitute?

A: DS1E-SL2-DC6V operates from -40°C ~ 70°C, matching ARX1206. ARN12A4H extends to -40°C ~ 85°C, providing wider temperature margin.

Q: Can ARN12A4H be used if the system voltage is 6VDC?

A: ARN12A4H is rated for 4.5VDC coil voltage. Operation at 6VDC requires verification that the coil insulation and control circuitry can tolerate the higher voltage without degradation or failure.