67117-025LF

Rectangular connectors have been around since the early days of electrical and electronic engineering and have been employed in a wide variety of applications over the decades. One such connector is the 67117-025LF, a high-density, shielded, flexible, and reliable header and receptacle connector. This two-piece connector system is typically used to join PCBs together or link circuits with the aid of wires. This article explains the applications and working principles of the 67117-025LF.

Typical Applications

The 67117-025LF, also known as the Samtec SBPK-3F-V-S-R, is a two-piece connector system consisting of a header and a receptacle. The header has a 50-position high density layout with a 2 mm pitch while the receptacle has 34-position 0.8 mm pitch. The flexibility of this connector system allows it to be used in a wide variety of applications including but not limited to backplane connectors, mezzanine connectors, socket cards edge connectors, and specialty mating connectors among other applications. Its dimensions of 12.07 mm x 8.92 mm x 8.18 mm make it suitable for space-constrained applications, so it is widely used for consumer electronic products. Furthermore, it has seven guide posts, making it suitable for board-to-board connections and also offers drop-in mating. This can be useful in applications where automated production processes require quick-change connectors.

Contact Design and Operation

The 67117-025LF is a two-piece connector system with a 55-position header and a 34-position receptacle. This connector family is designed to provide reliable contact connections and has a high-density, densely packed contact layout. The receptacle has 1.4 mm square contacts while the header has 1.3 mm square contacts. This ensures reliable connections between mating components. The system has a polarization notch on the receptacle side, which ensures the correct mating of the connector pairs. The header and receptacle are joined by a flexible strain relief band, which supports the connector from the PCB and also prevents unwanted cable movement when the connector is mated and unmated. The system is also fully shielded with a conductive rain hood to improve noise immunity for sensitive applications.

Performance Characteristics

The 67117-025LF connector system is built to withstand harsh environmental conditions. It is rated for a temperature range of -55°C to +105°C, making it suitable for industrial and automotive applications. The shell and strain relief are made of a UL 94 V-0 rated injected thermoplastic material for robustness. The copper alloy contacts are nickel-plated for corrosion resistance, and the system is rated for a current of up to 3 amps per contact. The contact resistance is 20mΩ maximum.

Summary

The 67117-025LF is a two-piece connector system that combines a high-density, low-profile header with a 34-position receptacle. This connector family is suitable for a variety of applications, including those in low-space environments, and can provide reliable contact connections and good environmental performance. Furthermore, the connector system is fully shielded and is rated for a temperature range of -55°C to +105°C. These features make it an excellent choice for applications with high environmental requirements.