A3C-32DA-2DSE(71) Equivalent & Substitute Parts

Part Overview

The A3C-32DA-2DSE(71) is a 32-position receptacle connector manufactured by Hirose Electric Co Ltd, designed for board-to-board or cable applications with through-hole solder termination. This connector features a 0.079" (2.00mm) pitch, gold-plated mating contacts, and push-pull fastening. The part is Active in product status with 1074 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling component interchangeability in applications where the primary part becomes unavailable or when design requirements permit alternative contact materials or performance ratings.

Substiute Parts

A3C-32DA-2DSE(71)

Hirose Electric Co LtdIn Stock: 1157A3C-32DA-2DSE(71) Datasheet

Current PartRFQ

SMM-116-01-S-D

Samtec Inc.In Stock: 1021SMM-116-01-S-D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The SMM-116-01-S-D from Samtec Inc. qualifies as a substitute for the A3C-32DA-2DSE(71) based on the following alignment of critical parameters:

• Connector Type & Position Count: Both are 32-position receptacle connectors
• Pitch & Row Configuration: Both maintain 0.079" (2.00mm) mating pitch with 2-row configuration and identical row spacing
• Mounting & Termination: Both use through-hole mounting with solder termination
• Fastening Mechanism: Both employ push-pull fastening
• Contact Finish - Mating: Both feature gold-plated mating contacts
• Insulation Color: Both are black
• Contact Shape: Both use square contacts
• Regulatory Compliance: Both are RoHS compliant

Substitution is valid where the electrical and mechanical interface requirements are met by these common parameters. Differences in contact material, contact finish thickness, insulation height, current rating, voltage rating, and operating temperature represent performance variations that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the A3C-32DA-2DSE(71) and SMM-116-01-S-D are Active products with full RoHS compliance, meeting current regulatory requirements for electronic component procurement. The Hirose A3C series maintains a 1074-unit inventory position, while the Samtec SMM series has 949 units available.

Selection between these parts should be based on application-specific electrical requirements. The SMM-116-01-S-D provides higher current capacity (3.2A per contact versus 1A) and extended voltage rating (350VAC versus 200VAC), along with an expanded operating temperature range (-55°C to 125°C versus -55°C to 85°C). The Samtec part uses Beryllium Copper contacts with thicker gold plating (30.0µin versus 8.00µin), offering enhanced durability in high-cycle mating applications.

Mechanical fit considerations include the SMM-116-01-S-D's reduced insulation height (0.140" versus 0.165") and increased contact post length (0.120" versus 0.050"), which may affect PCB layout and mating partner compatibility. Both parts share identical pitch, row configuration, and fastening mechanisms, ensuring mechanical interchangeability at the connector interface level.

Frequently Asked Questions (FAQ)

Q: Can the SMM-116-01-S-D directly replace the A3C-32DA-2DSE(71) in existing designs?

A: Direct replacement is possible at the connector interface level due to matching pitch (0.079"), row configuration (2 rows), position count (32), and fastening type (push-pull). However, the SMM-116-01-S-D has a reduced insulation height (0.140" versus 0.165") and longer contact posts (0.120" versus 0.050"), which may require PCB layout verification and mating partner compatibility assessment.

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

A: The SMM-116-01-S-D supports higher current (3.2A per contact versus 1A) and voltage (350VAC versus 200VAC) ratings. It also operates across a wider temperature range (-55°C to 125°C versus -55°C to 85°C). These differences make the Samtec part suitable for higher-power applications.

Q: Are both parts RoHS compliant?

A: Yes. The A3C-32DA-2DSE(71) is RoHS Compliant, and the SMM-116-01-S-D is ROHS3 Compliant, both meeting current regulatory standards.

Q: What contact material differences exist?

A: The A3C-32DA-2DSE(71) uses Phosphor Bronze contacts, while the SMM-116-01-S-D uses Beryllium Copper contacts. Both are gold-plated on the mating surface. The Samtec part features thicker gold plating (30.0µin versus 8.00µin), providing enhanced contact durability.

Q: What insulation materials are used?

A: The A3C-32DA-2DSE(71) uses Polybutylene Terephthalate (PBT), while the SMM-116-01-S-D uses Liquid Crystal Polymer (LCP). Both materials are UL94 V-0 rated for flammability.

Q: Are there packaging or inventory considerations?

A: Both parts are supplied in tube packaging. The A3C-32DA-2DSE(71) has 1074 units in stock, while the SMM-116-01-S-D has 949 units available, providing comparable supply positions.