SM-Contact

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O-PIN connector

Revolutionary Patented Technology for IGBT Module Assembly

Transform your power electronics manufacturing with SM Contact’s revolutionary O-PIN connector technology. Our patented solution eliminates the costly defects and complex assembly challenges of traditional copper sleeve and press-fit connectors for IGBT modules, DBC substrates, and high-power applications.

Key Benefits:

  • 140N pull-out resistance for superior reliability
  • Zero pin breakage during assembly
  • 4-week sample delivery with no tooling investment
  • Automated bandolier packaging for seamless production
  • ±1° maximum inclination control

What are O-PIN Connectors?

O-PIN connectors represent a breakthrough in power module connection technology for IGBT (Insulated Gate Bipolar Transistor) modules, power inverters, and high-current applications. Developed and patented by SM Contact, this innovative crimp-based terminal system solves the fundamental problems inherent in traditional insertion-based and press-fit connector technologies.

Unlike conventional copper sleeve connectors that require precise insertion forces exceeding 120N and complex multi-factor analysis, O-PIN connectors utilize advanced splice crimping technology for direct bonding to DBC (Direct Bonded Copper) substrates during reflow soldering processes.

connector for power module

Applications & Industries

Automotive

Automotive-grade connectors and insertion equipment for reliable, scalable production

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Power Electronics

High-performance connectors and insertion equipment for power and control systems

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Robotics and Motion

Reliable connectors and insertion equipment for dynamic motion applications

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The Hidden Costs of Traditional Copper Sleeve Connectors

Traditional insertion-based connector terminals for IGBT module assembly create significant manufacturing challenges that impact your bottom line:

Complex Assembly Requirements:

  • Multi-factor analysis needed (material compatibility, friction coefficients, substrate thickness variations)
  • High-precision manufacturing tolerances driving up costs
  • Expensive consumable components prone to assembly defects
  • Equipment force settings exceeding 120N risk pin breakage

Quality & Reliability Issues:

  • Unstable electrical connections leading to module failures
  • Extreme tolerance sensitivity causing misalignment
  • Pin slippage in high-current circuits
  • Inclination-based scrap increasing production costs by 15-30%

Press-Fit Technology Limitations:

  • Requires precise PCB hole diameter control 
  • Accumulation of assembly errors from multiple process steps

O-PIN Solution

Advanced Crimp Technology for Superior Performance

SM Contact’s patented O-PIN connector technology eliminates traditional pain points through innovative design:

Compression-Based Connectivity:

  • Robust mechanical connection resistant to vibration and thermal cycling
  • No risk of pin breakage during assembly (unlike 120N+ insertion force requirements)
  • Consistent pin integrity across all units
  • Superior electrical and thermal performance
connector with column

Manufacturing Excellence:

  • Higher repeatability in mass production
  • Assured flatness of contact surfaces
  • Single-process inclination control (±1° maximum vs. accumulated errors)

Cost-Effective Solution:

  • Eliminates expensive precision insertion equipment
  • Reduces scrap rates by eliminating insertion-related defects
  • Lower consumable costs compared to copper sleeve terminals
  • No tooling investment required for prototype samples

PRODUCTION BASED ON ULTRASONIC WELDING

Bandolier Packaging Innovation

Automation-Ready Design:

  • Continuous strip format for pick-and-place machines
  • Precise pitch control for automated indexing
  • Compatible with standard SMT assembly lines
  • Reduces material handling and eliminates packaging waste

Quality Benefits:

  • Consistent orientation and positioning
  • Eliminates individual component handling
  • Reduces contamination risk
  • Supports high-volume production environments
bandolier packaging for connector

O-PIN vs. Traditional Technologies

Designed for effortless installation, superior reliability, and flawless assembly, these connectors eliminate the frustrations of traditional copper sleeve connections while delivering unmatched durability and precision
Feature Copper Sleeve + Insertion O-PIN Connectors
Assembly Force 120N+ (risk of breakage) Zero insertion force
Process Steps Multi-step (sleeve + insertion) Single reflow cycle
Inclination Control ±3-5° (accumulated error) ±1° (single process)
Scrap Rate 5-15% <1%
Tooling Investment High precision required None for samples
Setup Time 8-12 weeks 4 weeks to samples
Current Rating Variable (60-100N) 140N pull-out

REQUEST TECHNICAL CONSULTATION

ORDER FREE O-PIN SAMPLES
+33 (0) 1 64 63 66 66
Don’t hesitate to contact us
Working Time
Mon-Fri: 9:00 - 18:00 / Closed on weekends
Factory Address
20-22 voie Gallo Romaine
77860 Quincy-Voisins France