HERMAPHRODITIC
PUSH-PULL CONNECTORS
SH-MH SERIES
®
®
Precision modular connectors to suit your application
Since it’s 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 50’000 connectors
The modular design of the LEMO range provides over 50’000 connectors from miniature ø 3 mm to ø 50 mm, capable of han-
dling cable diameters up to 30 mm and for up to 106 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 approved.
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 connectors are in compliance with the RoHS directives (2002/95/EC) of the European Parliament. This directive spec-
ifies the restrictions of the use of hazardous substances in electrical and electronic equipment marketed in Europe. LEMO
guarantees that its connectors are free of mercury, cadmium, lead, hexavalent chromium and polybromide biphenyl (PBB)
or polybromide diphenyl ether (PBDE).
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SH-MH Series
The LEMO Hermaphroditic series provide a rugged high performance patented push-pull hermaphroditic interconnection
system. These «genderless» connectors combine LEMO’s well proven push-pull latching technology and the use of our
standard high quality optical and electrical contacts.
The main features of these series are as follow:
– security of a new patented push-pull hermaphroditic self-latching system
– 2 shell sizes, SH and MH series
– compact unsealed version for general purpose applications
– rugged waterproof (IP 68) version for all outdoor applications
– a choice of multifibre or electrical contacts configurations
– lightweight design with shell in anthracite nickel-plated aluminium alloy
– low loss ceramic PC technology in multimode and singlemode
– gold plated electrical contacts.
Each series consists of plug and socket which will accept cable diameter ranging from 3.6 mm to 10 mm. Initial program is
giving solutions with 2, 4 or 6 fibre optic channel and 6 or 12 electrical contacts.
Standard version
(IP 50 when mated)
Straight plug
Straight plug
Fixed plug
Fixed socket
FHA
FHA
FWA
EHA
Sealed version
(IP 68 when mated)
Straight plug
Straight plug
Fixed plug
Fixed socket
FHE
FHE
FWE
EHE
Part Section Showing Internal Components
10
9
6
1
5
2
4
7
3
8
8
2
1
7
3
4
5
6
9
10
1
2
3
4
5
shell
latch sleeve
inner shell
spring
circlip
collet nut
insulator
8
optical contact
9
cable adapter
10
bend relief
6
7
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Technical Characteristics
Mechanical and Environmental
Characteristic
Mating durability
Temperature range
Vibration resistance
Shock resistance
Protection index FHE/FHE
Water immersion FHE/FHE
Protection index FHA/FHA
SH plug/plug
Average series plug/socket
latching
retention MH plug/plug
series plug/socket
Value
2000 cycles
Standard
Optical
Characteristic
Average insertion loss
fibre 9/125 µm
Average insertion loss
fibre 50/125 µm
Return loss fibre 9/125 µm
(UPC)
Return loss fibre 9/125 µm
(Hand polish)
Value
Standard
Method
Method 2
Method 2
Coupler
Method
Coupler
Method
IEC 60512-5 test 9a
-55°C to +125°C
1)
10-2000 Hz, 15g
IEC 60512-4 test 6d
100 g, 6 ms
IEC 60512-4 test 6c
IP 68
IEC 60529
up to 2 meters depth
IP 50
IEC 60529
600 N
300 N
IEC 60512-8 test 15f
800 N
400 N
0.18 dB IEC 61300-03-34
0.25 dB IEC 61300-03-34
≥45
dB
>25 dB
IEC 61300-03-06
IEC 61300-03-06
Materials and Treatments
Component
Material (Standard)
Alum. (AA 6262A or AA 6023)
Special brass
Alum. (AA 6262A or AA 6023)
Stainless steel
PEEK
Brass (male)/Bronze (female)
Silicone MQ / MVQ
Surface treat (µm)
nickel
Cu
Ni
Au
–
5
–
0.5
3
–
–
5
–
without treatment
without treatment
0.5
3
1
without treatment
Electrical
Characteristic
Insulation resistance
Contact resistance
Shell resistance
Value
> 10
12
Ω
< 3.6 mΩ
< 10 mΩ
Standard
IEC 60512-2 test 3a
IEC 60512-2 test 11f
IEC 60512-2 test 2f
Notes:
1)
with f.o. contacts temperature range -40°C/+80°C
Outer shell, collet nut
1)
Latch sleeve
Other metallic parts
Spring
Insulator
Electrical contacts
O-ring and gaskets
Notes:
1)
anthracite colour
Part Number Example
A different part number structure is applicable for each of the following product types:
– Plugs and fixed sockets; fibre optic contacts.
Note: The fibre optic contacts must be ordered separately. An equal number of contacts must be ordered
(eg. for MH.03C; 2 x FFS.F2 and 2 x PSS.F2).
Straight plug with bend relief
FHE
MH
03C
X
L
Z
T 76 N
Bend relief colour (for plug):
N = black, G = grey, R = red
Cable fixing and ø (for plug):
(page 5)
LV Contact Type: (page 5)
Insulator: L = PEEK
Model: (page 4)
Series: (page 4)
Type: (page 5)
Housing: X = Anthracite nickel
plated aluminium
FHE.MH.03C.XLZT76N
= Straight plug (IP 68 when mated), MH series, multifibre to accept 4 F2 type fibre optic contacts,
anthracite nickel plated aluminium shell, PEEK insulator, with cable fixing type T for 7.5 to 6.6 mm cable and black bend relief.
Fiber optic contact
Model: FFS = Male contact
PSS = Female contact
FO Contact type:
F2 for SH.03A & MH.03C
F7 for SH.03C & MH.03E
Fibre type: (page 5)
Body: L = PEEK
Cable ø for F2:
T10 = 0.25 to 1.1 mm
E30 = 1.7 to 3.0 mm
Cable ø for F7:
E23 = 0.25 to 2.0 mm
Ferrule material:
C = Zirconia ceramic
FFS
F2
BA2
L C
E 30
FFS.F2.BA2.LCE30
= Male F2 type fibre optic contact, ferrule bore diameter of 125 µm, PEEK body, Zirconia ceramic
ferrule, crimp cable fixing, for tight jacket cable with a diameter between 1.7 to 3.0 mm.
2
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Models - Series
FHA
Straight plug with cable adapter
or collet and nut with bend relief
Reference
~M
S2
~N
Dimensions (mm)
A
L
M
N
S2
13
15
Model
FHA
FHA
øA
Series
SH
MH
21.8 98.4 82.2 46.2
25.4 109.3 89.1 47.1
~L
FWA
Fixed plug, nut fixing
Reference
Model
S2
S1
S3
Dimensions (mm)
A
B
e
E
L
M
S1
S2
S3
25
30
Series
SH
MH
FWA
FWA
28.5 28.5 M22x1
34.0 34.0 M25x1
14 55.0 26.5 20.5 14
17 64.5 31.5 23.5 17
0.1
ø A+ 0
Panel cut-outs
øB
øA
e
Series
SH
MH
Dim. (mm)
øA
B
22.2
25.2
20.6
23.6
0.1
B +0
E maxi
~L
M
S1 S3
EHA
Fixed socket, nut fixing
Reference
Model
Series
SH
MH
A
B
e
Dimensions (mm)
L
optic elect
.
M
N
P
S1 S3
øB
øA
e
EHA
EHA
27 28.5 M22x1 38.8 30.5 19.5 30.5 3.3 20.5 25
32 34.0 M25x1 40.8 37.0 24.5 37.0 4.3 23.5 30
Dim. (mm)
øA
B
22.2
25.2
20.6
23.6
0.1
ø A+ 0
P
7 maxi
N
0.1
B +0
~L
M
Panel cut-outs
Series
SH
MH
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