A3C-18DA-2DSC(71) Equivalent & Substitute Parts

Part Overview

The A3C-18DA-2DSC(71) is an 18-position receptacle connector manufactured by Hirose Electric Co Ltd, designed for board-to-board or cable applications. This connector features a 0.079" (2.00mm) pitch with through-hole solder termination and push-pull fastening. The part is currently active in production with 652 units in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, application requirements, or design optimization needs.

Substiute Parts

A3C-18DA-2DSC(71)

Hirose Electric Co LtdIn Stock: 669A3C-18DA-2DSC(71) Datasheet

Current PartRFQ

SMM-109-01-S-D-P

Samtec Inc.In Stock: 1160SMM-109-01-S-D-P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the A3C-18DA-2DSC(71) are identified based on the following critical parameters that determine functional equivalence:

• 18-position receptacle configuration
• 0.079" (2.00mm) mating pitch
• 2-row arrangement with 0.079" (2.00mm) row spacing
• Through-hole solder termination
• Push-pull fastening mechanism
• Gold-plated mating contacts
• Female socket contact type
• Board-to-board or cable style application

The SMM-109-01-S-D-P from Samtec Inc. meets these core substitution criteria while maintaining compatibility with existing PCB layouts and mating connectors.

Parameter Comparison

Engineering Selection Recommendations

Both the A3C-18DA-2DSC(71) and SMM-109-01-S-D-P are active production parts with ROHS3 compliance and REACH unaffected status. The SMM-109-01-S-D-P offers enhanced electrical performance with higher current rating (3.2A per contact versus 1A) and higher voltage rating (350VAC versus 200VAC), along with an extended operating temperature range (-55°C ~ 125°C versus -55°C ~ 85°C). Both connectors maintain identical mechanical compatibility through matching pitch, row spacing, and through-hole termination specifications. Selection between these parts depends on application electrical requirements and thermal operating conditions.

Frequently Asked Questions (FAQ)

Q: Are the A3C-18DA-2DSC(71) and SMM-109-01-S-D-P mechanically interchangeable?

A: Yes. Both connectors share identical mating pitch (0.079"), row spacing (0.079"), number of positions (18), and through-hole solder termination. They are compatible with the same PCB footprints and mating connectors.

Q: What are the key electrical differences between these parts?

A: The SMM-109-01-S-D-P provides higher current capacity (3.2A per contact versus 1A) and higher voltage rating (350VAC versus 200VAC). Both parts operate at 200VAC minimum, making the SMM-109-01-S-D-P suitable for higher-power applications.

Q: Do both connectors support the same operating temperature range?

A: No. The A3C-18DA-2DSC(71) operates from -55°C to 85°C, while the SMM-109-01-S-D-P operates from -55°C to 125°C. Applications requiring operation above 85°C require the SMM-109-01-S-D-P.

Q: Are there packaging differences between these connectors?

A: Yes. The A3C-18DA-2DSC(71) is supplied in trays, while the SMM-109-01-S-D-P is supplied in tubes. Both are suitable for production assembly.

Q: Do both parts meet the same compliance standards?

A: Yes. Both connectors are ROHS3 compliant, REACH unaffected, and classified as EAR99 export control items with matching HTSUS codes (8536.69.4040).