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SMT connectors allow auto assembly

Posted: 12 Jan 2009     Print Version  Bookmark and Share

Keywords:SMT connector  miniature connector  precision stamping 

MicroStac SMT connector series

ERNI Electronics has expanded its 0.8mm MicroStac SMT connector series to include a 10- (single row) and 54-pin (dual row) version.

The MicroStac advantage is based on a patented hermaphroditic design, a special design requiring only one part number which enables reduced logistic and inventory costs for board-to-board applications. The powerful combination of the MicroStac's miniature construction and its innovative design makes it suitable for extremely compact and demanding applications.

The connectors can be used to a wide scope of applications including sensor technology, medical instruments, mobile communication, automotive electronics, automation engineering, measurement technology, test equipment and building automation. For medical applications, new antistatic versions are now available upon request.

The SMT construction and unique design of the MicroStac allow for economical and automatic assembly. The stability of the miniature connector is facilitated through a tilt-proof contact principle with dual side positioning of the contact on the PCB. In addition, with its corresponding features of minimal weight (just 0.18g for the 6-pin design), 100 per cent SMT co-planarity of <0.1mm and suction areas integrated in the insulating body for pick-and-place assembly, the MicroStac is perfectly suited for high-speed manufacturing requirements.

Even with their compact construction, MicroStac products can achieve a high current-carrying capacity. The contact is formed through precision stamping, a process which offers the most reliable form of contact possible. As a result, the contacts offer an extensive cross-section for low ohmic resistance, while at the same time providing a large radiating surface that yields higher power carrying capabilities than similar competitors' products. With an ambient temperature of 20°C and current feed to all contacts, the MicroStac 50-pin connector can transfer 1.6A per contact (in acc. with IEC 60512, test 5b), or can safely and reliably carry 80A inside a very small footprint.

Within the MicroStac connector family, new versions are now available with 6, 9, 10, 12, and 14 pins (all single-row), and 50 and 54 pins (both two-row). Depending on the connector version, the board-to-board height ranges from 3mm to between 5mm to 6.5mm. Despite the subminiature design, the MicroStac is designed to be used in multiple mated pairs between two boards. Subsequently, when using the MicroStac, there is no need to fear 'negative tolerance stack up'. The permissible centre offset, when connected, is ±0.7mm in the longitudinal direction and ±0.5mm in the transversal direction. The permissible angular offset is ±4°.

In addition, the MicroStac connectors feature a high temperature-resistant insulating body (PA46), and 100 per cent SMT coplanarity to ensure a secure soldering experience. The black isolating body allows simple visual recognition during automatic assembly and, when delivered in the antistatic packaging, the connectors are protected and ready for automatic assembly.

ERNI's MicroStac connectors are available immediately and pricing varies by pin count and volume.

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