SD-112-T-2 Equivalent & Substitute Parts

Part Overview

The SD-112-T-2 is a 24-position receptacle connector manufactured by Samtec Inc., designed for board-to-board applications with 0.100" (2.54mm) pitch spacing. This connector features through-hole solder termination, gold-plated mating contacts, and operates across the -55°C to 125°C temperature range. The product is active and ROHS3 compliant, with 855 units currently in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the core specifications of this connector type.

Substiute Parts

SD-112-T-2

Samtec Inc.In Stock: 945SD-112-T-2 Datasheet

Current PartRFQ

803-43-024-10-002000

Mill-Max Manufacturing Corp.In Stock: 1087803-43-024-10-002000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SD-112-T-2 accepts the Mill-Max 803-43-024-10-002000 as a direct substitute based on alignment of critical electrical and mechanical parameters. Substitution eligibility is determined by the following criteria:

• Connector type: Receptacle with female socket contacts
• Position count: 24 positions across 2 rows
• Pitch specification: 0.100" (2.54mm) mating pitch with 0.100" row spacing
• Mounting configuration: Through-hole solder termination
• Fastening mechanism: Push-pull engagement
• Contact material and finish: Beryllium copper with gold mating surface
• Temperature rating: -55°C to 125°C operational range
• Compliance: ROHS3 and REACH unaffected status

Both connectors meet these core parameters, establishing functional equivalence for board-to-board interconnect applications.

Parameter Comparison

Engineering Selection Recommendations

Both the SD-112-T-2 and 803-43-024-10-002000 are active products with ROHS3 compliance and REACH unaffected status, making either suitable for new designs and existing applications. Selection between these connectors should be based on availability, lead time, and supply chain requirements. The Mill-Max 803-43-024-10-002000 currently has 979 units in stock compared to 855 units for the Samtec SD-112-T-2. Both connectors carry identical electrical and mechanical specifications for the critical parameters governing board-to-board interconnect performance.

Frequently Asked Questions (FAQ)

Q: What determines if a connector can substitute for the SD-112-T-2?

A: Substitution requires matching connector type (receptacle), contact type (female socket), position count (24), mating pitch (0.100"), row configuration (2 rows at 0.100" spacing), mounting method (through-hole), termination (solder), fastening mechanism (push-pull), contact material (beryllium copper), and mating contact finish (gold). Operating temperature range and compliance certifications must also align.

Q: Are the physical dimensions identical between these connectors?

A: The connectors share identical mating pitch, row spacing, contact length, and operating temperature specifications. Insulation height differs between the two models (not specified for SD-112-T-2; 0.165" for 803-43-024-10-002000), which may affect PCB layout considerations in space-constrained applications.

Q: Can I use these connectors interchangeably in existing designs?

A: Yes, provided the mating connector is compatible with the 0.100" pitch and 2-row configuration. Both receptacles accept identical plug connectors and maintain equivalent electrical performance across the specified temperature range.

Q: What is the difference in contact finish thickness between the post and mating surfaces?

A: The SD-112-T-2 specifies 30.0µin (0.76µm) mating contact finish with unspecified post finish. The 803-43-024-10-002000 specifies 30.0µin (0.76µm) mating finish and 200.0µin (5.08µm) post finish, providing additional solder joint durability.

Q: Are both connectors suitable for high-reliability applications?

A: Both connectors are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for industrial and commercial applications. Compliance certifications and active product status support their use in standard interconnect applications.