EGG.4K.93L.CLM LEMO, EGG.4K.93L.CLM Datasheet - Page 115

• Manufacturer Part Number: EGG.4K.93L.CLM
• Description: Circular Push Pull Connectors RECEP FEMALE SLDR 2 FIBER 12 LOW VOLT
• Manufacturer: LEMO
• Series: K Seriesr

Specifications of EGG.4K.93L.CLM

• Product Type: Connectors
• Contact Style: Socket (Female)
• Shell Style: Receptacle
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Solder contacts
The conductor bucket of these contacts is machined at
an angle to form a cup into which the solder can flow.
See page 9 for the range of cable dimensions that can be
soldered.
Crimp contacts
For multipole or hybrid connectors the standard four-
identer crimp method is used (MIL-C-22520F, class I,
type 1).
The crimp method requires a controlled compression to
obtain a symmetrical deformation of the conductor strand
and of the contact material. The radial hole in the side of
the contact makes it possible to check whether the
conductor is correctly positioned within the contact. A
good crimping is characterized by only slightly reduced
conductor section and practically no gap.
For optimum crimping, the bronze or brass contacts are
annealed to relieve internal stress and reduce material
hardening during the crimping process.
Only the crimping zone is annealed with the help of an
induction heating machine designed by the LEMO
Research and Development Department.
Coaxial contacts type C
The cable fixing is achieved with hexagonal crimping
(MIL-C-22520F, type 2). This method guarantees a good
electrical continuity of the shield which improves greatly
the shielding efficiency of the cable/connector link. The
back end of the crimp nut which receives the shield braid,
is milled to ensure a good retention of the shield once
crimped.
For the center contact, square form crimp method is
used (MIL-C-22520F, type 2). The method requires a
controlled compression to obtain a symmetrical deforma-
tion of the conductor strand and of the contact material.
Technical characteristics
The range of coaxial cables that can be crimped into the contacts is indicated on the table on page 9.
Impedance
Operating voltage at 50 Hz
Test voltage at 50 Hz
Rated current
Insulation resistance
Contact resistance
Shell to shell resistance
VSWR (f=GHz)
Max. working frequency
Characteristics
1)
Ω
kV rms
kV rms
A
Ω
mΩ
mΩ
GHz
Unit
1.04 + 0.1f
>10
Value
0.5
1.6
5.8
3.7
2.1
50
2
12
Advantages of crimping
– practical, quick contact fixing outside the insulator
– possible use at high temperature
– no risk of heating the insulator during the conductor-
– high tensile strength
Crimp contacts are available in standard version for
mounting maximum size conductors.
For some dimensions, these crimp contacts can be pro-
duced with reduced crimp barrels for mounting reduced
size conductors. Consult the factory for information.
The range of cable dimensions that can be crimped into
the contacts is indicated on the table on page 9.
The radial hole in the side of the contact enables correct
positioning of the conductor within the contact to be veri-
fied. A good crimping is characterized by a small
conductor section reduction and by the quite closed free
spaces.
The LEMO crimp contacts are factory annealed to relieve
internal stresses, and reduce the risk of the material work
hardening during the crimping process.
Standing wave ratio
contact fixing
1.25
1.20
1.10
1.00
1000
2000
®
f (MHz)
113
®