The CLM-112-02-G-D-A is a high-performance board-to-board (B2B) or wire-to-board (W2B) rectangular connector designed by Samtec, a leading global manufacturer of high-speed interconnect solutions. It belongs to Samtec’s CLM series, which is engineered for compact, reliable signal and power transmission in space-constrained electronic systems. Characterized by its miniature form factor, robust mating interface, and versatile configuration, this connector is optimized for applications requiring secure interconnections between PCBs or between PCBs and cables.
A key feature of the CLM-112-02-G-D-A is its high-density pin layout in an ultra-compact package. Critical specifications include:
- Pin Count: 12 pins (configured as 2 rows × 6 pins), supporting parallel signal or low-power transmission.
- Pitch: Typically 1.27mm (0.050 inches), a standard fine pitch for miniature connectors—enabling dense PCB routing without sacrificing signal integrity.
- Current Rating: Up to 1.0A per pin (at 80°C ambient temperature), suitable for low-to-moderate power delivery alongside signal lines (e.g., powering small sensors or microcontrollers while transmitting data).
This density makes it ideal for systems where PCB real estate is limited, as it minimizes the connector’s footprint while maintaining multiple I/O channels.
The connector features a polarized, friction-lock mating design that ensures reliable interconnection and prevents misalignment:
- Polarization: Keyed housing or pin-offset features eliminate reverse mating, which could damage sensitive components (e.g., microcontrollers, FPGAs) by reversing voltage or signal paths.
- Friction Lock: The mating interface provides consistent retention force (typically 0.5–1.0N per pin) to withstand vibration or mechanical shock, while requiring low insertion force (≤15N total) for easy assembly and serviceability.
- Gold-Plated Contacts: Contacts are typically plated with 30–50µin gold over nickel, ensuring low contact resistance (<20mΩ), corrosion resistance, and long-term reliability (up to 100 mating cycles).
The CLM-112-02-G-D-A supports flexible integration into diverse system designs:
- Termination Type: Surface-mount technology (SMT) for the PCB-side connector, compatible with automated reflow soldering processes—reducing manufacturing costs and ensuring consistent solder joints. For wire-to-board use, it pairs with crimp-style terminals (e.g., Samtec’s TSM series) for secure wire attachment (24–30 AWG wire gauge compatibility).
- Mounting Orientation: “G-D-A” in the part number indicates orientation (varies by Samtec’s coding, typically vertical or right-angle mounting), allowing designers to optimize connector placement for PCB stacking or cable routing (e.g., right-angle mounting for low-profile enclosures).
Engineered for industrial and commercial operating conditions, the connector offers strong resilience:
- Operating Temperature Range: -55°C to +125°C, enabling deployment in extreme environments (e.g., industrial control systems, automotive electronics).
- Insulation Resistance: ≥1000MΩ (at 500V DC), preventing leakage current between pins and ensuring signal isolation.
- Dielectric Withstanding Voltage (DWV): ≥500V AC (rms) for 1 minute, protecting against voltage transients and ensuring safety in high-voltage adjacent circuits.
- Housing Material: High-temperature thermoplastic (e.g., LCP or PBT) with flame retardancy rating (UL94 V-0), resisting heat, chemicals, and mechanical stress.
A critical functional advantage is its compatibility with Samtec’s broader connector portfolio:
- Mating Partners: Pairs with complementary connectors such as the CLP series (board-to-board) or TSM series (wire-to-board terminals), enabling seamless system integration.
- Cable Assemblies: Samtec offers pre-assembled cable harnesses with CLM-112-02-G-D-A connectors, reducing design time and ensuring consistent performance (vs. custom cable builds).
- PLCs and DCS Modules: Serves as a compact interconnect between I/O modules and the main control board of Programmable Logic Controllers (PLCs) or Distributed Control Systems (DCS). The 1.27mm pitch fits dense PCB layouts, while gold-plated contacts ensure reliable signal transmission in noisy factory environments.
- Industrial Sensors: Connects low-power sensors (e.g., temperature, pressure, or proximity sensors) to signal conditioning boards. The polarized design prevents sensor miswiring, and the wide temperature range tolerates harsh industrial conditions (-55°C to +125°C).
- Robotics: Links motor control modules to feedback sensors (e.g., encoders) in small robotic arms. The friction-lock design resists vibration from robotic motion, maintaining signal integrity.
- Wearable Devices: Powers and transmits data between the main PCB and peripheral components (e.g., heart rate monitors, display modules) in smartwatches or fitness trackers. The miniature size (1.27mm pitch) fits tight wearable enclosures, and low mating force simplifies assembly.
- Home Appliances: Connects control panels (e.g., touchscreens, button interfaces) to the main PCB of small appliances (e.g., coffee makers, air purifiers). Polarization prevents incorrect assembly during manufacturing, reducing warranty claims.
- Gaming Consoles: Interconnects internal modules (e.g., power management, audio/video processing) in compact gaming hardware. Compatibility with Samtec’s cable assemblies accelerates production.
- Portable Medical Devices: Links sensors (e.g., pulse oximeters, glucose meters) to the main PCB of handheld medical gadgets. Gold-plated contacts ensure low-noise signal transmission for accurate readings, while the UL94 V-0 housing meets medical safety standards.
- Diagnostic Equipment: Serves as a board-to-board interconnect in compact diagnostic tools (e.g., rapid antigen test readers). The DWV rating (≥500V AC) protects sensitive diagnostic circuits from voltage interference.
- In-Cabin Electronics: Connects infotainment system modules (e.g., touchscreens, Bluetooth modules) to the main head unit. The wide temperature range (-55°C to +125°C) tolerates extreme cabin and engine bay temperatures, while vibration resistance ensures reliability on the road.
- ADAS Sensors: Links low-power Advanced Driver Assistance Systems (ADAS) sensors (e.g., ultrasonic parking sensors) to the ADAS control module. Polarization prevents sensor misconnection, which could compromise safety.
- IoT Gateways: Interconnects communication modules (e.g., Wi-Fi, Bluetooth) to the main MCU board in compact IoT gateways. The high-density pin layout supports multiple data paths, while compatibility with Samtec’s cable assemblies simplifies integration with external sensors.
- Embedded Computing: Connects expansion modules (e.g., memory, I/O extenders) to single-board computers (SBCs) or microcontroller development boards. The SMT termination enables automated assembly, reducing production costs for high-volume embedded systems.
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