Test & Measurement
Learn more: CarlisleIT.com/products
WHEN SIGNAL INTEGRITY & DENSITY MATTER
CoreHC™ 2.5 mm Pitch Interconnect Solutions
Feature Customer Benefit
DC to 65 GHz frequency range Supports a variety of current and emerging applications, reducing overall cost
Board footprint compatibility Can be used with Coplanar Wave Guide (CPW) and strip line PCB traces
Multiple board-to-board solutions 8 mm to 20 mm stack-up height in 2 mm increments to meet certain height restrictions
One-piece interface for vertical-mount type
Saves time and reduces costs because no soldering to the board is required; only PEM
nuts are used for installation and removal
Zero force to disengage Eliminates damage to PCB solder joints and footprints
20,000 mate/demate cycles
High signal integrity in a long-life package provides high performance and lower cost of
ownership
Smaller overall footprint size 2.5 mm pitch to access signals in dense environments and save PCB space
2 picosecond phase matching High signal integrity
2.92 mm and 1.85 mm cable-side connectors Supports frequencies up to 65 GHz
0.047 and 0.079 coax cables are available
High-performance, microwave-grade, flexible coaxial cables offer high density, high
frequency, and low losses
Cable length options Standard lengths offerred in cm increments (custom lengths available upon request)
Edge launch/mount option Design flexibility for complex board layouts
Multiple channels
Standard products available in single row, 2, 4, 6, 8, and 10 channels (custom configurations
upon request)
Multiple signal probing Probing is possible on single-ended or differential signals
Flexible cables Offers high electrical and mechanical stability
Tilt protection Shape of housings ensures high mechanical stability
Keying Eliminates mismating
No custom tooling required Interconnect mounts on board with standard tools
Solder-free installation Interposer-less design, requires no solder on PCB
Field-replaceable Can be moved, reconfigured, and replaced in the field with standard tools
FEATURES & BENEFITS
Carlisle Interconnect Technologies’ CoreHC 2.5 mm pitch direct attach cable assembly is
a multichannel, test-point system targeted for high-density boards where space is limited.
It offers reduced trace lengths and higher signal integrity compared to boards using
traditional SMA-type connectors. On average, there is 4-times higher available bandwidth
for signals in the same real estate as SMA connectors.
CarlisleIT’s unique compression force design results in easier and rapid connectivity
of high-frequency signals on the board. Since there are configurations using single or
multiple channels, board size can be optimized accordingly.
The vertical mount-attach solution eliminates the board-side connector or interposer by
offering a direct connection of signals between the traces and pads on the PCB footprint
and the compression pins on the cable assembly. A board-side interposer is required for
edge mount-type solution. Optimized footprints and layouts are available upon request.
The 2.5 mm solution is designed for demanding bandwidths up to 65 GHz. Standard
products are available in single, 2, 4, 6, 8, and 10-channel configurations.
Test & Measurement
Learn more: CarlisleIT.com/products
SPECIFICATIONS & PERFORMANCE
CoreHC™ 2.5 mm Pitch Interconnect Solutions
Parameter Specification
Frequency Range DC to 65 GHz
Impedance 50 Ohms ± 2.5 Ohms
VSWR
Frequency
Range
VSWR Return Loss
DC–20 GHz 1.2:1 ≥ 26 dB at DC to 65 GHz
20 GHz–30 GHz 1.25:1
≥ 17 dB at 26.5 GHz to 50
GHz
30 GHz–65 GHz 1.40:1
≥ 14 dB from 50 GHz
to 65 GHz
Insertion Loss
047 type cable:
-2.2 dB (max) at 20 GHz
079 type cable:
-0.7 dB (max) at 20 GHz
Working Voltage 335 VRMS max @ sea level
DWV (Dielectric
Withstand Voltage)
500 VRMS (min)
Insulation Resistance 5000 MΩ (min)
RF High Potential 100 VRMS @ 5 MHz
Force to Engage 60 g (typical per channel)
Force to disengage 0 (max per channel)
Insertion Life 20,000 mating/demating cycles
Phase Matching 2 picoseconds
Pitch 2.5 mm
Form Factor Compression mounts directly to board
Interface (Cable End to
Equipment)
Female or male 1.85 mm, 2.4 mm, 2.92 mm & 3.5 mm
Temperature Range -65°C to 150°C
Environmental
Meets MIL-STD-202 for corrosion, vibration moisture
resistance, thermal, and mechanical shock
Footprint Examples for Vertical & Edge Launch Assemblies Single-Channel CoreHC-Based Secure Interconnect Solution
TYPICAL APPLICATION: SMALL FOOTPRINT & DENSE CONFIGURATION
2X
.147
+
-
.003
.000
3.734
+
0.076
0
UN-PLATED HOLE
2X
.033
+
-
.002
.000
0.838
+
0.051
0
UN-PLATED HOLE
2X
.043
1.092
2X
.167
4.242
00
.059
1.500
.110
2.794
.110
2.794
00
.110
2.794
.098
2.500
.472
12
.571
14.500
.681
17.294
.138
3.500
.236
6
.335
8.500
.433
11
CONNECTOR
OUTLINE
A
2X
.147
+
-
.003
.000
3.734
+
0.076
0
UN-PLATED HOLE
2X
.033
+
-
.002
.000
0.838
+
0.051
0
UN-PLATED HOLE
2X
.167
4.242
2X
.043
1.092
2X
.167
4.242
00
.059
1.500
.110
2.794
.110
2.794
0 0
.110
2.794
.098
2.500
.472
12
.571
14.500
.681
17.294
.138
3.500
.236
6
.335
8.500
.433
11
CONNECTOR
OUTLINE
A
2X
.091
+
-
.003
.001
UNPLATED THRU HOLE
2X
.039
+
-
.003
.001
UNPLATED THRU HOLE
0
.037
.051
.109
.249
0
.079
.846
.768
.884
.276
.374
.037
.472
.571
A
CONNECTOR
OUTLINE
AREA TO BE FREE
OF SOLDER MASK
4 Channel CPW Layout - Vertical
4 Channel Stripline Layout - Vertical
4 Channel CPW Layout - Edge Launch
A A
A
SecureThread CPW Layout
Insertion Loss of .079-inch Single-Ended Coax
*Data shown is measured for 28cm length Cable Assembly
Cable assembly losses only
Cable assembly and PCB trace loss
The measured differential insertion loss for a CoreHC cable
assembly is shown below. Note the smoothing of the insertion
loss curve in the graph with no spikes.
Differential Insertion Loss (SDD21)
Differential insertion loss of CoreHC interconnect using .079-
inch coax cable