SDL-126-G-12 Equivalent & Substitute Parts

Part Overview

The SDL-126-G-12 is a 52-position receptacle connector manufactured by Samtec Inc., designed for board-to-board applications with 0.100" (2.54mm) pitch spacing. This connector features gold-plated female socket contacts, through-hole solder termination, and push-pull fastening. The part is currently in active production status with full inventory availability. Alternative equivalent parts may be required due to supply chain considerations, design revisions, or specific application requirements while maintaining identical electrical and mechanical compatibility.

Substiute Parts

SDL-126-G-12

Samtec Inc.In Stock: 857SDL-126-G-12 Datasheet

Current PartRFQ

SDL-126-G-12

Samtec Inc.In Stock: 857SDL-126-G-12 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the SDL-126-G-12 is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters define the substitution criteria:

• Connector type (Receptacle) and contact type (Female Socket)
• Position count (52 positions) and row configuration (2 rows)
• Pitch specifications (0.100" mating pitch and 0.100" row spacing)
• Mounting method (Through Hole) and termination type (Solder)
• Contact finish specifications (Gold plating on both mating and post surfaces with specified thickness)
• Insulation material (Liquid Crystal Polymer) and physical dimensions
• Operating temperature range (-55°C ~ 125°C)
• Compliance certifications (ROHS3, REACH Unaffected)

Parts meeting all these criteria are considered direct equivalents and may be substituted without design modification.

Parameter Comparison

Engineering Selection Recommendations

The SDL-126-G-12 is an active production component from Samtec Inc. with full regulatory compliance. Both the main part and its substitute maintain identical specifications across all electrical, mechanical, and environmental parameters. Selection between equivalent parts should be based on:

Inventory availability and lead time requirements from authorized distributors. Product status confirmation that the selected part remains in active production. Compliance verification that ROHS3 and REACH Unaffected certifications are current. Packaging format confirmation that tube packaging meets assembly line requirements.

No design modifications are required when substituting between parts meeting these criteria.

Frequently Asked Questions (FAQ)

Q: Can SDL-126-G-12 be substituted with other Samtec SDL series connectors?

A: Only parts with identical specifications across all parameters listed in the Key Parameters table are direct substitutes. Other SDL series variants with different position counts, pitch specifications, or contact finishes are not compatible without design modification.

Q: What are the critical dimensions for PCB layout compatibility?

A: The 0.100" (2.54mm) mating pitch and 0.100" row spacing determine pad layout. The 0.095" (2.41mm) insulation height and contact length specifications define the vertical clearance requirements. These dimensions are identical across all equivalent parts.

Q: Are there any thermal or environmental limitations for this connector?

A: The operating temperature range is -55°C to 125°C. The Moisture Sensitivity Level (MSL) rating of 1 indicates unlimited shelf life without moisture control requirements. These specifications apply uniformly to all equivalent parts.

Q: How does the gold plating thickness affect connector performance?

A: The mating contact finish thickness of 30.0µin (0.76µm) and post finish thickness of 10.0µin (0.25µm) are specified for corrosion resistance and electrical conductivity. These thicknesses must be maintained for equivalent performance. All substitute parts maintain identical plating specifications.

Q: What is the significance of the Beryllium Copper contact material?

A: Beryllium Copper provides the mechanical spring force required for reliable contact engagement in the push-pull fastening system. This material is specified for all equivalent parts and cannot be substituted with alternative contact materials without affecting connector performance.

Q: Does packaging format affect connector functionality?

A: Tube packaging is a handling and storage format only and does not affect electrical or mechanical performance. All equivalent parts in tube packaging are functionally identical.