2RS1-18-G Equivalent & Substitute Parts

Part Overview

The 2RS1-18-G is an 18-position receptacle connector manufactured by Adam Tech, designed for board-to-board applications with 2.0mm pitch through-hole solder termination. This connector features gold-plated female socket contacts rated for 1A at 250VAC and operates across -40°C to 105°C. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

2RS1-18-G

Adam TechIn Stock: 8162RS1-18-G Datasheet

Current PartRFQ

831-47-018-10-001000

Mill-Max Manufacturing Corp.In Stock: 846831-47-018-10-001000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The 831-47-018-10-001000 from Mill-Max Manufacturing Corp. qualifies as a functional equivalent based on the following critical parameters:

Matching Parameters:

• 18-position receptacle configuration
• 0.079" (2.00mm) mating pitch
• Female socket contact type
• Board-to-board style
• Through-hole solder termination
• Gold-plated mating contacts
• Push-pull fastening mechanism
• UL94 V-0 flammability rating
• REACH Unaffected status

Differing Parameters: The substitute part exhibits variations in contact material (Beryllium Copper vs. Phosphor Bronze), contact finish on posts (Tin vs. Gold), insulation material composition, contact geometry (Circular vs. Square), and electrical ratings (3A vs. 1A current capacity; -55°C to 125°C vs. -40°C to 105°C operating range). These differences do not preclude substitution when the application requirements fall within the substitute's specifications.

Parameter Comparison

Engineering Selection Recommendations

The 831-47-018-10-001000 serves as a direct functional substitute for the obsolete 2RS1-18-G in applications where the following conditions are met:

• Circuit current requirements do not exceed 3A (the substitute's rating exceeds the original 1A specification)
• Operating temperature range requirements fall within -55°C to 125°C
• RoHS3 compliance is not mandated; the substitute is RoHS non-compliant
• Mechanical footprint and pitch alignment with existing PCB designs are verified

The substitute part is currently in active production status with confirmed inventory availability (756 pieces), providing supply chain continuity for the discontinued 2RS1-18-G. Both parts maintain identical mating pitch, contact count, and board-to-board configuration, ensuring mechanical and electrical compatibility at the connector interface level.

Frequently Asked Questions (FAQ)

Q: Can the 831-47-018-10-001000 directly replace the 2RS1-18-G without PCB modification?

A: Yes, provided the mating connector and PCB footprint are designed for 0.079" (2.00mm) pitch 18-position receptacles. Both parts share identical pitch and position count, requiring no layout changes.

Q: What is the significance of the different current ratings (1A vs. 3A)?

A: The 831-47-018-10-001000 has a higher current capacity, making it suitable for applications originally rated at 1A. Applications requiring higher current density benefit from the substitute's enhanced rating. Verify that individual contact loading does not exceed design limits.

Q: Does the RoHS non-compliance of the substitute part affect substitution eligibility?

A: RoHS compliance status depends on end-application regulatory requirements. If RoHS3 compliance is mandatory, the 831-47-018-10-001000 is not suitable. If RoHS compliance is not required, the substitute part is acceptable.

Q: Are the contact materials interchangeable from a reliability standpoint?

A: Both Phosphor Bronze (original) and Beryllium Copper (substitute) are established contact materials for rectangular connectors. Contact material selection affects spring characteristics and wear resistance. Verify compatibility with mating contact materials and expected cycle life requirements.

Q: What packaging format is available for the substitute part?

A: The 831-47-018-10-001000 is supplied in bulk packaging, differing from the original part's packaging specification. Confirm bulk packaging meets procurement and handling requirements.