A3C-4DA-2DSA Equivalent & Substitute Parts

Part Overview

The A3C-4DA-2DSA is a 4-position rectangular 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 gold-plated mating contacts and through-hole solder termination. The part is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

A3C-4DA-2DSA

Hirose Electric Co LtdIn Stock: 1197A3C-4DA-2DSA Datasheet

Current PartRFQ

A3C-4DA-2DSA(71)

Hirose Electric Co LtdIn Stock: 1212A3C-4DA-2DSA(71) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A3C-4DA-2DSA is determined by strict equivalence across the following critical parameters:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (4)
• Pitch specification (0.079" / 2.00mm)
• Row configuration (2 rows)
• Mounting method (Through Hole)
• Termination type (Solder)
• Contact finish - mating surface (Gold)
• Current rating (1A)
• Voltage rating (200VAC)
• Operating temperature range (-55°C ~ 85°C)
• Insulation material (Polybutylene Terephthalate)
• Contact material (Phosphor Bronze)

The identified substitute maintains identical electrical and mechanical specifications across all these parameters, with the primary distinction being product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The A3C-4DA-2DSA(71) is a direct functional equivalent to the A3C-4DA-2DSA. Both parts share identical electrical and mechanical specifications, including connector configuration, contact materials, current and voltage ratings, and operating temperature range.

The primary distinction is product status: the original A3C-4DA-2DSA is obsolete, while the A3C-4DA-2DSA(71) maintains active production status. Additionally, the substitute part is ROHS3 compliant, whereas the original is RoHS non-compliant. For new designs or systems requiring regulatory compliance with current environmental standards, the A3C-4DA-2DSA(71) is the appropriate selection. For legacy system maintenance where RoHS compliance is not a requirement, either part is electrically and mechanically interchangeable.

Frequently Asked Questions (FAQ)

Q: Are A3C-4DA-2DSA and A3C-4DA-2DSA(71) fully interchangeable?

A: Yes. Both parts are identical in connector type, pin count, pitch, mounting method, contact materials, and electrical ratings. They are direct functional equivalents suitable for board-to-board or cable applications with identical mating characteristics.

Q: What is the significance of the "(71)" designation in A3C-4DA-2DSA(71)?

A: The "(71)" suffix indicates a packaging variant. The substitute part is supplied in tray packaging, whereas the original part number does not specify a packaging format. This distinction does not affect electrical or mechanical compatibility.

Q: Why should I consider the A3C-4DA-2DSA(71) if the original part is in stock?

A: The original A3C-4DA-2DSA is obsolete, indicating discontinued production. The A3C-4DA-2DSA(71) maintains active status and is ROHS3 compliant, making it the recommended choice for long-term component availability and regulatory compliance.

Q: Are there any differences in contact finish or plating specifications?

A: No. Both parts feature gold-plated mating contacts with identical thickness specifications (8.00µin / 0.203µm) and tin-plated posts (39.4µin / 1.00µm). Contact material composition is identical in both parts.

Q: What is the operating temperature range for these connectors?

A: Both the A3C-4DA-2DSA and A3C-4DA-2DSA(71) operate across -55°C to 85°C, suitable for general purpose and telecommunications applications across standard industrial and commercial temperature ranges.