Product category:
PCB Connectors
News Release from: Harting | Subject: har-bus HM-Plus
Edited by the Electronicstalk Editorial
Team on 02 April 2001
Hard metric 2mm connectors go with the
(re)flow
Harting has introduced a new range of hard metric 2mm connectors, har-bus HM-Plus, which are compatible with the latest high-temperature surface-mount production processes.
Harting has introduced a new range of hard metric 2mm connectors, har-bus HM-Plus, which are compatible with the latest high-temperature surface-mount production processes Until now, right-angled hard metric 2mm connectors have been designed for insertion using the press-fit method, followed by reflow soldering
This article was originally published on Electronicstalk on 11 Jun 2008 at 8.00am (UK)
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The new devices, however, can be directly mounted by an automatic pick-and-place machine, so that they can be soldered along with other surface-mount components at the same time.
The new connectors have been designed to exploit the latest developments in simultaneous double-sided reflow soldering (SDSRS) and pin-in-hole intrusive reflow (PiHIR) technology.
Press-fit connectors generally use contacts mounted on plastic wafers assembled into a 'solid block' housing, which limits their compatibility with reflow soldering processes, where homogeneous heat distribution and unimpeded access for convection heat to reach all the solder joints is particularly important.
To overcome this problem, Harting has integrated open ventilation slots into the wafers and the connector housings to provide free air flow throughout the connector housing.
This air flow guarantees good heat distribution to the most highly screened row of contacts, and also provides homogeneous heat dissipation to aid uniform cooling of the soldered joints.
With this new concept, hard metric 2mm connectors can for the first time be fully integrated into the economical reflow soldering process.
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