AdvancedMC
Connectors
Series CN074 / CN080 / CN084
AdvancedCMT - Compression Mount Technology
CMT
Speed
Press fit hole
Small drilling hole
CMT allows the usage of blind via’s,
micro via’s or drillings with
Blind via
a very small diameter thus
- reducing stub-effects and reflexion
Buried via
- reducing cross-talk and insertion loss
Cross-section showing PCB holesrequired for press-fit
connections compared to small drilling holes or vias for CMT
- providing characteristic impedance matching
- enabling transmission waveform @12.5 Gbps (see diagram below)
Compression Mount
Press-fit
veandMicroTCA
CMT Flexibility
The usage of blind via’s, micro via’s or drillings
with very small diameter also provides
- more space for signal routing on the backplane
- possibilities to reduce the number of backplane layers up to 30%
- cost saving due to less backplane layers
Vertical Routing Channel
1 pair between MCH Tongues
4 pair between MCH Tongues
2 in the middle of the connector
3 pair in the middle of the connector
CMT
Reliability
AdvancedCMT connectors from Yamaichi have proven their reliabilityunder vibration,
temperature etc. according to all relevant specifications for
both the CMT and the card edge connection area
AdvancedMC
Yamaichi is using wider contacts to compensate manufacturing
tolerances of the PCB
Case
- No additional “guiding” needed -
Card edge
contact
Yamaichi contact shape has the contact point at the bending
area (not at the stamping / cutting area)
- No damage of the contact surface while mating -
- Stable contact resistance during the lifetime -
- Precisely defined contact force -
Wide contact with
smooth contact surface
Connectors
SPECIFICATIONS AND DRAWINGS ARE SUBJECT TO ALTERATION WITHOUT PRIOR NOTICE - DIMENSIONS IN MILLIMETER
YAMAICHI [ YAMAICHI ELECTRONICS CO., LTD. ]
