OMNIMATE – Device connectivity and electronics housings

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Weidmüller is a leading international provider of solutions for electrical connectivity,transmission and conditioning of power, signal and data in industrial environments.The company with headquarters in Detmold/Germany develops, produces and sellsproducts in the field of electrical connectivity and electronics all over the world.

Strana 623 z 707

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3 mm • Stencil hole diameter: 2.5 length for the following PCB designs: • Mounting hole diameter: 1. The good thermal properties the material are the best for the SMT process and also for lead-free soldering.W. . SMT is now the accepted standard for PCB manufacture. The benefits: • High temperature resistance • Melting point 335 °C • Free from halogens • Low thermal expansion coefficient Remains true even the pitches Weidmüller's makes its male headers SL-SMT from LCP (liquid crystal polymer) prevent undesirable dimensional changes caused water absorption during storage. THR milestone PCB assembly • Mechanically stable solder connections the PCB • Only one soldering process • Elimination the requirement for hand wave soldering • Automatic assembly • Low production costs Stability new dimension Our male headers are made glass fibre reinforced LCP (liquid crystal polymer). Through hole technology the SMT process The placement process PCBs has undergone a fundamental change recent years.13 Technicalappendix W SMT design-in recommendations The basis for high quality, reliability and efficiency THR technology THR soldering process the processing components that are inserted through hole the PCB and then soldered along with the other SMT components.6 thickness, optimal solder joint shape can achieved with paste filling approximately 90%. The conventional through hole mounting technique (THT) was increasingly replaced the surface mounting process (SMT). Due the pin length just 1. this method the components themselves must able to withstand the higher temperatures the SMT process. This ensures high form stability.6 stencil thickness: 120 180 µm Paste printing low volume the best shape Weidmüller SL-SMT pin headers have short octagonal pins with chamfered pin end keep the required paste volume low possible.5 mm for standard PCBs with 1.8 mm (with insufficient paste filling) Valid for: PCB thickness: 1.5 1.5 mm Soldering terminal diameter: 2.1 mm (with sufficient paste filling) • Stencil hole diameter: 2. Weidmüller offers you short pinned SL-SMT male headers with 1. “Design in” “Design out” from experience Standard process parameters assist the design the PCB and the stencils. This ensures the highest pitch accuracy, even high pin counts and secures the placement process

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