Datasheet
41www.lemo.com
®
®
ø A
e
ø B
S 3
S 1
M
E maxi
L maxi
HGG Fixed socket, nut fixing, key (G) or keys
(A to F and L), watertight or vacuumtight
HEG 0K
HEG 1K
HEG 2K
ø A
e
ø B
M
P
E maxi
L maxi
S 1
HEG Fixed socket, nut fixing, key (G) or keys
(A to F and L), watertight or vacuumtight
(back panel mounting)
Reference
Model Series
18 18 M14x1.0 3.4 23.0 3.5 7 12.5
20 20 M16x1.0 6.2 30.0 3.5 10 14.5
25 25 M20x1.0 5.0 33.7 3.5 10 18.5
Dimensions (mm)
AB e E LMPS1
> 5000 cycles IEC 60512-5 test 9a
up to 95% at 60° C
- 20° C/+100° C
- 20° C/+80° C
> 144h IEC 60512-6 test 11f
20/80/21 IEC 60068-1
< 10
-7
mbar.l.s
-1
IEC 60512-7 test 14b
Endurance
Humidity
Temperature range (0K-1K)
Temperature range (2K to 5K)
Salt spray corrosion test
Climatical category
Leakage rate (He)
1)
Characteristics Value Standard
Mechanical and Climatical
Note:
1)
only for vacuumtight models.
Technical Characteristics
P1
Panel cut-out (page 153)
P1
Panel cut-out (page 153)
Note: the 5K series is delivered with a round nut.
Reference
Model Series
HGG 0K
HGG 1K
HGG 2K
HGG 3K
HGG 4K
HGG 5K
18 19.2 M14x1.0 5.5 23.0 4.0 12.5 17
20 21.5 M16x1.0 9.0 30.0 4.5 14.5 19
25 27.0 M20x1.0 13.0 33.7 5.0 18.5 24
31 34.0 M24x1.0 16.0 41.7 6.0 22.5 30
37 40.5 M30x1.0 14.0 49.2 6.5 28.5 36
55 54.0 M45x1.5 10.0 55.7 9.0 42.5 –
Dimensions (mm)
AB e E LMS1 S3
60 bars
60 bars
40 bars
IEC 60512-7 test 14d
30 bars
15 bars
5 bars
0K
1K
2K
3K
4K
5K
Characteristics Value Standard
Note:
2)
this value corresponds to the maximum allowed pressure differ-
ence for the assembled socket.
Maximum operating
pressure
2)
Watertight or vacuumtight models
These socket and coupler models allow the device on which they are fitted to reach a protection index of IP68 as per IEC
60529. They are fully compatible with plugs of the same series and are widely used for portable radios, military, laboratory
equipment, aviation, etc.
These models are identified by a letter «P» at the end of the reference.
Most of these models are also available in a vacuumtight version. Such models are identified by an additional letter «V» at
the end of the part number (certificate on request).
Epoxy resin is used to seal these models.