PCB terminal block connectors offer long-term reliability for LED lighting

April 15, 2016 // By PAUL BUCKLEY
Harting has introduced white coloured 2.54 mm pitch SMT har-flexicon PCB terminal block connectors for LED lighting applications
Harting has introduced the company's white coloured 2.54 mm pitch SMT har-flexicon PCB terminal block connectors for LED lighting applications.

The connectors support reliable long-term installation of LED Modules (assembled from LED arrays mounted on rigid and thermally conductive substrates for optimal heat dissipation) into a wide variety of applications e.g. High/Low Bay indoor lighting, street lighting, floodlighting and emergency lighting.

Applying har-flexicon with surface mount reflow soldering processes simplifies LED Module PCB assembly. Connecting the conductors in lighting fixtures was formerly often done using hand soldering. This is often unreliable and prone to error when using printed circuit boards with a metal core, owing to the high degree of heat dissipation. The optimised design of the har-flexicon connector SMT PCB hold-down’s ensure rugged solder-pad retention and supports reliable handling during equipment final integration.  

White har-flexicon for LED lighting PCB mounting design options include a horizontal male and a discrete wire push-in spring-cage terminal block part.  Both are made from high temperature LCP plastic which is completely ‘colour-stable’ after the SMT assembly process and UV resistant for long term installation.  As a result they minimise shadowing effects within the light fixture.

Pluggable female discrete wire push-in spring-cage cable connectors are also available which have a strong but flexible locking-latch design which is damage resistant and ensures dependable mating.  

Harting’s discrete wire push-in spring-cage termination design offers resilient cable retention whilst allowing simple reconnection for easy light fixture maintenance.  The product family comprises 2 and 3-way versions for stranded and solid conductors with cross-sections up to 0.75 mm², at a nominal current carrying capacity of 6 A.