CXH Series
Features and Benefits
■ Up to 27 GHz of operating frequency when properly
matched in a coplanar waveguide structure.
■ Up to 12.5 watts of power to supply a wide array of
applications and satisfy different customers’ needs.
■ Robust thick and thin film process technology, ideal for
harsh environments.
■ Standard resistance values ranging from 10-500 ohms with
a standard tolerance of ±5%.
■ Power handling performance tested according to MIL-
PRF-55432 to ensure series qualification.
Applications
■ Amplifier Circuits
■ Transmit/Receive Modules
■ Up/Down Converters
■ Instrumentation
■ Radar
■ Broadcast
Smiths Interconnect’s Surface Mount Chip Resistors
and Terminations offer increased power handling
over conventional solutions.
CXH Series uses a patented layout to provide improved
power handling over conventional flip chart resistors, without
compromising broadband performance. This makes the Series
well suited for a wide array of RF applications, particularly in the
Space and Defence markets.
The power increase from the patented design (US 8, 994, 490),
with added solderable outrigger pads on the sides of the chip,
allows to dissipate significantly more power through the extra
thermal paths (approximately 50% more than conventional
surface mount solutions).
The products are designed for surface mount (SMT) applications
and are manufactured using robust thick and thin film process
technology.
CXH Series is lead free, RoHS compliant and available in tape
and reel packaging for high volume pick and place applications.
Surface Mount Outrigger Resistors and Terminations
OUTRIGGER RESISTIVES, DC-27 GHz
Outrigger Resistors and
Terminations with
improved power handling
over conventional resistives
without compromising the
broadband performance
CXH Series
2
Technical Characteristics
Electrical
Resistance Range
10-500 Ohms
Resistance Tolerance ±5% Standard, ±2% Available
Nominal Impedance 50 ohms
VSWR (Termination Configuration) DC-6 GHz 1.25:1 6-12 GHz 1.60:1
Environmental
Operating Temperature
-55°C to +150°C
Storage Temperature -65°C to +150°C
Temperature Coefficient ± 200 PPM/°C Max
Moisture Sensitivity Level
MSL 1 - Unlimited
Mechanical
Substrate Material
Alumina 96% or Aluminum Nitride
Resistive Film Thick Film
Terminal Material Thick Film, Silver Plated
Protective Coating
Polymer
Marking
Unit Marking Ohm Value and Orientation Dot
Quality Assurance
Sample visual and mechanical inspection - 1.0 AQL per mechanical drawing requirements.
Periodic electrical inspection performed for commercial grade products.
High reliability tested products are available per MIL-PRF-55342.
Packaging
Standard Packaging Tape and Reel
Part Number Conguration Frequency
Range
Input Power CW
(Maximum)
Peak Power
(Based on 10 µS pulse
width, 1% Duty Cycle)
CRH0406XXXXF Single Outrigger DC-27 GHz 500 mW 5 Watts
CRH0607XXXXF Single Outrigger DC-27 GHz 1.5 Watts 15 Watts
CRH0808XXXXF Single Outrigger DC-25 GHz 1.75 Watts 17.5 Watts
CRHA0808XXXXF Single Outrigger DC-25 GHz 6.0 Watts 60 Watts
CRH1211XXXXF Single Outrigger DC-20 GHz 2.75 Watts 27.5 Watts
CRHA1211XXXXF Single Outrigger DC-20 GHz 9.5 Watts 95 Watts
CRH0409XXXXF Dual Outrigger DC-27 GHz 1.0 Watt 10 Watts
CRH0610XXXXF Dual Outrigger DC-27 GHz 1.75 Watts 17.5 Watts
CRH0811XXXXF Dual Outrigger DC-25 GHz 2.5 Watts 25 Watts
CRHA0811XXXXF Dual Outrigger DC-25 GHz 6.0 Watts 60 Watts
CRH1216XXXXF Dual Outrigger DC-20 GHz 4 Watts 40 Watts
CRHA1216XXXXF Dual Outrigger DC-20 GHz 12.5 Watts 125 Watts
CTH0610F Outrigger Termination DC-12 GHz 3 Watts 20 Watts