COAXIAL, TRIAXIAL,
MULTI & MIXED CONNECTORS
SHORT FORM
CATALOGUE
®
®
Precision modular connectors to suit your application
Since its creation in Switzerland in 1946 the LEMO Group has been recognized as a global leader of circular Push-Pull con-
nectors and connector solutions. Today LEMO and its affiliated companies, REDEL and COELVER, are active in more than
80 countries with the help of over 40 subsidiaries and distributors.
Over 75’000 connectors
The modular design of the LEMO range provides over 75’000 connectors from miniature ø 3 mm to ø 50 mm, capable of han-
dling cable diameters up to 30 mm and for up to 114 contacts.
This vast portfolio enables you to select the ideal connector configuration to suit almost any specific requirement in most mar-
kets, including medical devices, test and measurement instruments, machinery, audio video broadcast, telecommunications
and military.
LEMO’s Push-Pull Self-Latching Connection System
This self-latching system is renowned worldwide for its easy and quick mating and unmating features. It provides absolute secu-
rity against vibration, shock or pull on the cable, and facilitates operation in a very limited space.
The LEMO self-latching system allows the connector
to be mated by simply pushing the plug axially into the
socket.
Once firmly latched, connection cannot be broken by
pulling on the cable or any other component part other
than the outer release sleeve.
When required, the connector is disengaged by a sin-
gle axial pull on the outer release sleeve. This first dis-
engages the latches and then withdraws the plug from
the socket.
UL Recognition
LEMO connectors are recognized by the Underwriters Laboratories (UL). The approval of the complete system (LEMO
connector, cable and your equipment) will be easier because LEMO connectors are recognized.
CE marking
CE marking
means that the appliance or equipment bearing it complies with the protection requirements of one or
several European safety directives. CE marking
applies to complete products or equipment,
but not to electrome-
chanical components, such as connectors.
RoHS
LEMO connector specifications conforms the requirements of the RoHS directive (2011/65/EU) of the European Parliament
and the latest amendments. This directive specifies the restrictions of the use of hazardous substances in electrical and elec-
tronic equipment marketed in Europe.
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®
®
Introduction
This catalogue gives the complete description of LEMO connectors with coaxial, triaxial and mixed contacts.
Mixed contacts include coaxial and low voltage contact configurations, as well as multi-coaxial contact configurations.
The LEMO manufacturing programme has been extended to almost 40 series divided into 7 product families with specific
mating and environmental characteristics. Each series includes a wide variety of plug, socket and coupler models, avail-
able in contact configurations adapted to all round cables. The catalogue includes the B, K, S and E Series of the LEMO
product range. In addition the 00 Series (triaxial) connector is also represented.
Watertight and vacuumtight models are also available. Since LEMO connectors are perfectly screened and designed to guar-
antee very low resistance to shell electrical continuity, they are particularly adapted to applications where electromagnetic
compatibility (EMC) is important.
Material and treatment
Component
Material (Standard)
Surface treatment (µm)
chrome
nickel
gold
black chr. Notes
Cu Ni Cr Cu Ni Cu Ni Au Ni Cr
3
0.3 0.5 3 0.5 3
without treatment
anodized
–
–
–
–
–
– 0.5 3 0.5 3
– 0.5 3 0.5 3
without treatment
0.3 0.5 3 0.5 3
without treatment
–
0.5
3
0.5
3
0.5
1
2
Outer shell,
collet nut, conical nut
or notched nut and oversized collet
Earthing crown
Latch sleeve
Locking washer
Hexagonal or round nut
Other metallic components
O-ring and gaskets
Sealing resin
Brass (UNS C 38500)
0.5
Stainless steel (AISI 303, 304 or 316L)
Aluminium alloy (AA 6262A or AA 6023)
POM (Delrin
®
or Ertacetal
®
), Polyoxymethylene, black
PEEK, Polyether ethercetone, beige
PSU (Udel
®
), Polysulfone, grey or white
PPSU (Radel
®
), Polyphenylsulfone, cream
PPS (Ryton
®
), Polyphenilene sulfide, brown
–
Bronze (UNS C 54400) or special brass
–
Beryllium Copper (UNS C 17300)
Stainless steel (AISI 416 or 316L)
0.5
Special brass
Stainless steel (AISI 416 or 316L)
Bronze (UNS C 52100)
–
Brass (UNS C 38500)
Stainless steel (AISI 303, 304 or 316L)
Aluminium alloy (AA 6262A or AA 6023)
Brass (UNS C 38500)
–
Stainless steel (AISI 303, 304 or 316L)
Silicone MQ/MVQ or FPM/FKM (Viton
®
)
Epoxy (Araldite
®
or Stycast
®
)
3)
4)
5)
6)
7)
8)
9)
1)
2)
3)
3)
4)
–
–
3
1.0
1.0
0.5
–
–
–
–
–
–
5)
6)
7)
7)
–
0.5
–
–
8)
8)
–
–
without treatment
anodized natural
0.5 3 0.5 3
without treatment
–
–
0.5
–
–
9)
Notes:
standards for surface treatment are as follows:
– chrome-plated: SAE AMS 2460
– nickel-plated: SAE AMS QQ N 290, or MIL DTL 32119
– gold-plated: ISO 27874
– black chrome: MIL-C-14538C with a minimum of 10 µm of lacquer
protection
1)
for FFP, PCP and ERN models of the 0S to 3S series
2)
for FFP, PCP and ERN models of the 0S to 3S series, FGG and ENG
models of the 0B, 1B, 3B and 4B series, FFA and FFC models of the
00 triaxial series
for the FGG, FGY and ENY models of the 2B to 4B series
for 00 triaxial series (elbow sockets for printed circuits)
gold-plating for unipole types
used in 00 series free and fixed sockets
AISI 416 steel is used with shells made of AISI 303 or 304
delivered with free and fixed sockets with aluminium alloy or stainless
steel shell
FPM/FKM (Viton
®
) o-ring and gaskets are installed upon special
request. However standard for vacuumtight models.
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1
®
®
B Series
B series connectors provide the following main features:
– security of the Push-Pull self-latching system
– coaxial, triaxial and mixed contact configurations
– plastic models made of PSU or PPSU
– multiple key options to avoid cross mating
of similar connectors («G» key standard).
Metal housing models
Fixed plugs
Straight plugs
Fixed sockets
Free sockets
–
–
–
–
up to 10 coaxial contacts
solder or crimp contacts
high packing density for space savings
360° screening for full EMC shielding
FWG
FGG
EGG
EJG
PHG
FAG
FGG
ENG
EEG
PHG
Elbow plugs
FFG
FHG
FNG
EHG
PKG
FKG
FEG
PFG
FDG
PEG
FIG
EKG
ECG
PNG
Fixed sockets
Plastic housing models
Straight plugs
Fixed sockets
FGG
FGG
ENG
FGY
FGY
ENY
Model Description
ECG
Fixed socket with two nuts, key (G) or keys
(A…L and R) (back panel mounting)
EEG
Fixed socket, nut fixing, key (G) or keys
(A…L and R) (back panel mounting)
EGG
Fixed socket, nut fixing, key (G)
or keys (A…L and R)
EHG
Fixed socket, nut fixing, key (G) or keys
(A…L and R), and protruding shell
EJG
Fixed socket, press or adhesive fit,
key (G) or keys (A…L)
EKG
Fixed socket, nut fixing, key (G) or keys
(A…L and R), special alignment mark
on the front
ENG
Fixed socket with earthing tag, nut fixing,
key (G) or keys (A…L)
ENG
Fixed socket with earthing tag, nut fixing,
key (G or J), PEEK outer shell
ENY
Fixed socket with earthing tag, nut fixing,
keys (Y), PSU or PPSU outer shell
FAG
Fixed plug, non-latching, nut fixing,
key (G) or keys (A…L and R)
FDG
Straight plug, long version,
key (G) or keys (A…L), cable collet
2
FEG
Straight plug, key (G) or keys (A…L), cable
collet, front seal and nut for fitting a bend
relief (IP 54 protection index when mated)
FFG
Straight plug, non-latching, key (G)
or keys (A…L), cable collet
FGG
Straight plug, key (G) or keys (A…L and R),
cable collet
FGG
Straight plug, key (G) or keys (A…L),
cable collet and nut for fitting a bend relief
FGG
Straight plug, key (G or J), cable collet,
PEEK outer shell
FGG
Straight plug, key (G or J), cable collet,
PEEK outer shell, nut for fitting a bend relief
FGY
Straight plug, keys (Y), cable collet
and PSU or PPSU outer shell
FGY
Straight plug, keys (Y), cable collet
and PSU or PPSU outer shell and nut
for fitting a bend relief
FHG
Elbow (90°) plug, key (G) or keys
(A…L and R), cable collet
FIG
Straight plug for remote handling, key (G)
or keys (A…L and R), special alignment
mark, knurled handling surface, cable collet
FKG
Elbow (90°) plug for remote handling,
key (G) or keys (A…L), special alignment
mark, knurled handling surface,
cable collet
FNG
Straight plug, key (G) or keys (A…L and R),
cable collet and lanyard release
FWG
Fixed plug, nut fixing, key (G) or keys (A…L)
PEG
Fixed socket, nut fixing, key (G) or keys
(A…L), cable collet (back panel mounting)
PFG
Fixed socket, with two nuts, key (G)
or keys (A…L and R), cable collet
(back panel mounting)
PHG
Free socket, key (G) or keys (A…L and R),
cable collet
PHG
Free socket, key (G) or keys (A…L),
cable collet and nut for fitting a bend relief
PKG
Fixed socket, nut fixing, key (G)
or keys (A…L and R), cable collet
PNG
Free socket, nut fixing, key (G) or keys
(A…L and R), cable collet with lanyard
release
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®
®
Part Numbering System
Plug
FG G
.
3B
.
844
.
C
L
A D 11 1
Free socket
PH G
.
3B
.
844
.
C
L
L
D 11 1
Variant:
Cable group
Z = collet nut for bend relief
Cable ø max.
1)
Collet type: D or M
Fixed socket
EG G
.
3B
.
844
.
C
L
L
1
Cable group
Contact type:
A = male solder
C = male crimp
L = female solder
M = female crimp
Insulator: L = PEEK
Series
Insert configuration:
multi coax, coax + LV
Housing:
C = brass chrome-plated
P = PSU
Model
Alignment key: G
Part Number Example
Straight plug with cable collet:
FGG.3B.844.CLAD111
= straight plug with key (G) and cable collet, 3B series, mixed coax & low voltage type (1 coax and
4 low voltage contacts), outer shell in chrome-plated brass, PEEK insulator, male solder contacts, D type collet for up to
11 mm diameter cable. Cable group 1.
Free socket:
PHG.3B.844.CLLD111
= free socket with key (G) and cable collet, 3B series, mixed coax & low voltage type (1 coax and
4 low voltage contacts), outer shell in chrome-plated brass, PEEK insulator, female solder contacts, D type collet for up to
11 mm diameter cable. Cable group 1.
Fixed socket:
EGG.3B.844.CLL1=
fixed socket, nut fixing, with key (G), 3B series, mixed coax & low voltage type (1 coax and 4 low volt-
age contacts), outer shell in chrome plated brass, PEEK insulator, female solder contacts. Cable group 1.
Note:
1)
see unipole-multipole catalogue (p. 52).
Part Section Showing Internal Components (mixed coax + LV)
Fixed socket
1
2
3
4
5
6
7
8
Straight plug
8
7
6
2
3
4
5
1
1
8
6
5
4
2
7
3
1
2
3
4
5
6
7
8
outer shell
earthing crown
retaining ring
hexagonal nut
locking washer
insulator
female contact
female coaxial contact
outer shell
latch sleeve
collet nut
split insert carrier
insulator
male contact
collet
male coaxial contact
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3
FPGA/CPLD
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