Eaton SM16M1S31 Stamped Contacts - RoHS/REACH
Part Number: SM16M1S31
Quick Summary
SM16M1S31 contacts are precision male stamped and formed connectors used in high-reliability electrical assemblies. Engineers often struggle with inconsistent crimps, misalignment, and supply delays in bulk harness builds. This part meets RoHS and REACH environmental requirements, and its gold-on-active, nickel-on-rear plating supports long life and reliable mating. With reel packaging and a compact footprint, it reduces assembly time and SKU complexity, while enabling automation-ready crimping for 16 AWG to 18 AWG wire.
Product Information
Extended Description
SM16M1S31 Eaton: Male stamped and formed crimp contact, size #16, on a reel, Gold and Nickel plating; SM16M1S31
Product Name
Eaton Souriau SC / SM series #16 (1.6mm) and #20 (1.0mm) stamped and formed contacts
Catalog Number
SM16M1S31
Product Length/Depth
28 mm
Product Height
3.2 mm
Product Width
3.7 mm
Product Diameter
3.2 mm
Product Weight
0.4 g
Environmental conditions
RoHS REACH
Contact gender
Pin (Male)
Contact plating
Gold on active part, Nickel on rear part
Contact size
16 AWG
Contact type
Crimp
Packaging type
Reeled
Wire size (AWG) - max
16 AWG
Wire size (AWG) - min
18 AWG
Manufacturing process
Stamped and formed
Feature: Gold on active part with Nickel on rear part. Benefit: Superior corrosion resistance and low contact resistance at the active interface, while rear protection reduces wear and debris intrusion. Application: Ideal for harsh industrial environments where long-term connectivity is critical and maintenance windows are limited. Feature: Size #16 (1.6 mm) stamped and formed. Benefit: Consistent, high-speed manufacturing with tight tolerances reduces rework and scrap. Application: Suitable for automated crimping in high-volume Eaton Souriau SC/SM assemblies, supporting reliable mating across cycles. Feature: Packaging type reeled. Benefit: Streamlined material handling and continuous feeding for automated insertion equipment, lowering labor costs. Application: Large-scale harness fabrication and panel assemblies in manufacturing lines. Feature: Wire size range 18–16 AWG. Benefit: Flexible wiring options cut SKU proliferation while maintaining crimp integrity. Application: Mixed-wiring environments without sacrificing performance or crimp quality. Feature: RoHS and REACH environmental compliance. Benefit: Regulatory readiness and reduced risk of non-compliance costs in global deployments. Application: Global aerospace, automotive, and industrial installations requiring traceable material standards. Feature: Gold on active part, Nickel on rear part plating. Benefit: Enhanced wear resistance and sustained contact performance over many mating cycles. Application: Critical mating interfaces in connector assemblies where longevity is essential.
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FAQs
SM16M1S31 is designed for compatibility with Eaton Souriau SC/SM series connectors using standard 16 AWG to 18 AWG wire. For consistent results, use a precision crimp tool recommended for stamped and formed contacts, with the correct crimp profile to secure the gold-on-active portion. Pre-inspection of wire strip length and proper reel-fed feeding reduces misfeeds and rework.
Gold on the active contact face delivers low contact resistance and excellent corrosion resistance at the mating surface, while nickel on the rear portion protects against wear and contamination. Together they extend life cycles in harsh environments and maintain reliable electrical performance over many mating cycles.
Yes. The stamped and formed manufacturing method supports cost-effective mass production, and reel packaging aligns with automated feeding systems. Its 28 mm length and compact footprint enable dense connector layouts, reducing assembly time and triggering lower labor costs in automated harness production.
The SM16M1S31 contacts are RoHS and REACH compliant, aligning with global environmental regulations. Typical validation includes plating adhesion, crimp force fidelity, contact resistance testing, and endurance cycling to verify performance across mating iterations in industrial connectors.
The ROI comes from reduced scrap due to tighter tolerances, faster crimping with compatible tooling, and lower packaging handling with reels. Long-term benefits include improved uptime, consistent mating integrity, and fewer field failures, which translate to lower maintenance costs and higher overall equipment effectiveness.