With AdvancedTCA and µTCA signal connectors having 170 contacts on a pitch of 0.75mm, the specification ATCA 3.0 demands very tight tolerances for the mating PCB tracks, such that PC Board manufacturers are currently up against the limits of cost-effective production. This makes the choice of suitable connectors of decisive importance
For details of the ept products, download the PDF located in the left hand column titled 'Advanced TCA'
Since connectors must accept the maximum width tolerance of the AMC module, the offset of the axis of symmetry of PCB pad and connector contact of an AMC card of "nominal" width can be as high as 0.075mm. An AMC card of minimum width would allow a 0.15mm offset.
The core element of the new "con:card+" connectors is the patented "GuideSpring". The GuideSpring mitigates symmetry offsets by constantly pressing the AMC module against the opposite wall of the connector.
Even in a worst case scenario the GuideSpring achieves an overlap of PCB pad and contact of over 90%.
The GuideSpring has the added benefit of securing the module position against shock and vibrations, thus preventing loss of contact and surface wear. This assists the use of boards that can be produced cost-effectively by current series production methods.
AdvancedTCA AMC B+ connector
AdvancedTCA Female Backplane connector
AdvancedTCA Male connector
MicroTCA Power Backplane Connector
MicroTCA Power Module Output connector
All with the ept and Harting "con-card+" quality seal:
Benefits of this jointly developed con:card+ philosophy include:
- A Guide Spring for reliable positioning
- An extra-smooth contact surface to protect the gold-plated printed-circuit board pads of the AdvancedMC™ modules
- A wear-resistant contact plating (palladium/nickel) for protection against rough board surfaces
- Special contact material with minimum relaxation even if contact spring load is high
- ept's renowned high-quality press-fit connection