R404.522.000 N Termination Plug Manufactured by Radiall

A coaxial termination is intended to terminate a coaxial transmission in its characteristic impedance. It is supposed to
dissipate the whole R.F. incident power; heat transfer is done by conduction or convection cooling.
II GENERAL SPECIFICATIONS
In general, RADIALL terminations are designed in accordance with MIL and NF standards.
" TECHNOLOGY
Coaxial terminations can be classified technically into 3 main types depending upon the resistive
element used.
D High frequency and low power terminations use Tantalum nitride thin film deposits on
Alumina substrates.
D High frequency and medium power RADIALL terminations use Tantalum Nitride thin film
deposits on Aluminium Nitride substrates.
D High power RADIALL terminations use Ruthenium Oxide thick film circuits printed on alumina
substrates sticked to a sole of aluminium nitride as a cooling sink.
RADIALL has decided to remove Beryllium material from its whole range of medium and high
power terminations. Indeed, Beryllium oxide dust is highly toxic when scribing or machining or
laser trimming. RADIALL has replaced this material by aluminium nitride which has excellent
heat conductive properties and is absolutely safe for the environment.
" MECHANICAL CHARACTERISTICS, MATERIALS AND FINISHES
All materials and finishes are in accordance with applicable MIL and NF specifications.
All connectors used in our terminations are in accordance with applicableMIL DIN NF and CEI
specifications.
All dimensions in this catalogue are given in inches and (millimeters). The non-specified dimensions
are given within ¦ 0.5 mm.
" MANUFACTURING AND QUALITY ASSURANCE
Thin film and thick film circuits of RADIALL terminations are produced in-house, in class 10000
clean rooms, using advanced processing technologies. Ourmicroelectronic laboratory uses a
tightly controlled and highly repeatable process, necessary to achieve consistent microwave
performances.
RADIALLmaintains a state-of-the-art computer aided designed system, a well equipped precision
machine factory, a modern component assembly area and an extensive collection of RF
test equipments.
Specific testing is available upon request.MATERIALS AND FINISHES :
Body Passivated Stainless Steel or Brass Nickel plated
Contact Beryllium Copper Gold plated (UBe2)
Heatsink Aluminium black anodized
Insulator P T F E or ULTEM 1000
Resistor circuits Tantalium Nitride Thin film on ceramic substrates
Ruthenium Oxide Thick film on ceramic substrates
Tantalium Nitride Thin film on Aluminium nitride substrates
Non inductive resistor

R404 522 500 6 300 DC-18 1.15 1.20 1.25 1.30 50 ¦5% F