A3C-12DA-2DSA Equivalent & Substitute Parts

Part Overview

The A3C-12DA-2DSA is a 12-position receptacle connector manufactured by Hirose Electric Co Ltd, featuring 0.079" (2.00mm) pitch, through-hole solder termination, and gold-plated mating contacts. This connector is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The part operates across -55°C to 85°C with a 1A current rating and 200VAC voltage rating, serving general purpose and telecommunications applications.

Substiute Parts

A3C-12DA-2DSA

Hirose Electric Co LtdIn Stock: 832A3C-12DA-2DSA Datasheet

Current PartRFQ

A3C-12DA-2DSA(71)

Hirose Electric Co LtdIn Stock: 1313A3C-12DA-2DSA(71) Datasheet

DirectRFQ

0873801206

MolexIn Stock: 6960873801206 Datasheet

MFR RecommendedRFQ

SMM-106-01-H-D

Samtec Inc.In Stock: 1172SMM-106-01-H-D Datasheet

MFR RecommendedRFQ

SMM-106-01-S-D

Samtec Inc.In Stock: 1380SMM-106-01-S-D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the A3C-12DA-2DSA are qualified based on the following critical parameters that must match or exceed the original specification:

• 12-position receptacle configuration with female socket contacts
• 0.079" (2.00mm) mating pitch and row spacing
• Through-hole solder termination with push-pull fastening
• Gold-plated mating contact finish
• Operating temperature range of -55°C to 85°C minimum
• Current rating of 1A minimum and 200VAC voltage rating minimum
• UL94 V-0 flammability rating
• Board-to-board or cable connection style

The substitute parts listed below meet these core electrical and mechanical requirements, enabling direct functional replacement in applications designed for the A3C-12DA-2DSA.

Parameter Comparison

Engineering Selection Recommendations

A3C-12DA-2DSA(71) is the primary direct substitute from Hirose Electric Co Ltd. This part maintains identical electrical and mechanical specifications to the original A3C-12DA-2DSA while offering active product status and ROHS3 compliance. The only difference is packaging format (tray versus bulk), making this the preferred choice for designs requiring continuity with the original Hirose platform.

0873801206 (Molex Milli-Grid 87380 series) provides an alternative from a different manufacturer. This part meets the core 12-position, 2.00mm pitch, through-hole solder configuration with gold mating contacts and push-pull fastening. However, critical electrical parameters including operating temperature range, current rating, and voltage rating are not specified in available documentation, requiring verification against application requirements before selection.

SMM-106-01-H-D and SMM-106-01-S-D (Samtec Tiger Eye™ SMM series) are active alternatives offering enhanced electrical performance with 3.2A per contact current rating and 350VAC voltage rating, exceeding the original 1A/200VAC specification. Both parts support the extended operating temperature range of -55°C to 125°C and maintain UL94 V-0 flammability rating. The primary difference between these two Samtec options is contact finish on the post: SMM-106-01-H-D features gold post finish, while SMM-106-01-S-D features tin post finish. Both are ROHS3 compliant and actively produced.

Frequently Asked Questions (FAQ)

Q: Can A3C-12DA-2DSA(71) be used as a direct replacement for the obsolete A3C-12DA-2DSA?

A: Yes. A3C-12DA-2DSA(71) maintains identical electrical and mechanical specifications including 12-position configuration, 0.079" pitch, through-hole solder termination, gold mating contacts, 1A current rating, and 200VAC voltage rating. The only difference is packaging format (tray). This is the recommended substitute for design continuity.

Q: What are the key differences between the Samtec SMM-106-01-H-D and SMM-106-01-S-D options?

A: Both Samtec parts share identical core specifications: 12-position, 0.079" pitch, through-hole solder termination, gold mating contacts, push-pull fastening, and enhanced performance ratings (3.2A per contact, 350VAC, -55°C to 125°C). The distinction is contact post finish: SMM-106-01-H-D uses gold post finish, while SMM-106-01-S-D uses tin post finish. Selection depends on solderability and corrosion resistance requirements in the target application.

Q: Are all substitute parts RoHS compliant?

A: The original A3C-12DA-2DSA is RoHS non-compliant. All substitute parts listed—A3C-12DA-2DSA(71), 0873801206, SMM-106-01-H-D, and SMM-106-01-S-D—are ROHS3 compliant, meeting current environmental regulations.

Q: Can the Molex 0873801206 be used if electrical specifications are not fully documented?

A: The Molex 0873801206 meets the critical mechanical and contact configuration requirements (12-position, 0.079" pitch, through-hole solder, gold mating contacts, push-pull fastening). However, operating temperature range, current rating, and voltage rating are not specified. Use of this part requires verification that undocumented electrical parameters meet or exceed application requirements.

Q: Do the Samtec SMM-106 series parts exceed the original specification?

A: Yes. The Samtec SMM-106-01-H-D and SMM-106-01-S-D both provide enhanced electrical performance: 3.2A per contact (versus 1A original), 350VAC (versus 200VAC original), and extended operating temperature to 125°C (versus 85°C original). These parts are suitable for applications requiring higher electrical performance while maintaining mechanical compatibility.

Q: What packaging formats are available for these substitute parts?

A: A3C-12DA-2DSA(71) is supplied in tray packaging. The Molex 0873801206, Samtec SMM-106-01-H-D, and Samtec SMM-106-01-S-D are all supplied in tube packaging. Original A3C-12DA-2DSA was supplied in bulk packaging.