6-3
Catalog 1308940 Dimensions are in inches and Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-2103-6000
Revised 8-06 millimeters unless otherwise reference purposes only. Canada: 1-905-470-4425 Hong Kong: 852-2735-1628
specified. Values in brackets Specifications subject Mexico: 52-55-1106-0800 Japan: 81-44-844-8013
www.tycoelectronics.com are metric equivalents. to change. C. America: 57-1-254-4444 UK: 44-208-420-8341
Introduction (Continued)
LGH High Voltage Connectors
6
LGH High Voltage Connectors
Lead Assemblies and
Receptacles
LGH Mating Length/Depth Normal Capacitance Wire Operating Voltage* 3 Min. Hipot**
Series pF/ft. pF/m Size Kilovolts DC Kilovolts DC
LGH 1⁄4.25 [6.35] *** — 22 A WG 5 7.5
LGH 1⁄2.53 [13.46] 55 180 16 A WG 10 15
LGH 1⁄2L.89 [22.61] 55 180 16 A WG 15 23
LGH 1 .88 [22.35] 35 115 16 A WG 20 30
LGH 1L 1.69 [42.93] 35 115 16 A WG 25 38
LGH 2 1.44 [36.58] 28 144 16 AWG 30 45
LGH 3 1.81 [45.97] 35 115 16 A WG 40 55
LGH 4 2.00 [50.80] 28 144 16 AWG 50 60
*Sea level to 70,000 ft. [21,336 m], -55°C to +125°C [-67°F to +257°F].
**Sea level at 25°C(77°F).
***LGH 1⁄4is not shielded
LGH leads and receptacles
find wide application where
high voltage is used in
harsh environments. LGH
leads and receptacles are
lightweight, miniature,
extremely reliable and they
maintain peak perfor mance
under high temperature,
high altitude applications.
They are equally applicable
tolow temperature, low
altitude devices.
Leads and receptacles
shown on the following
pages are commonly used
items. Hundreds of varia-
tions of these products are
available, as well as custom-
made units. Consult
Tyco Electronics for infor-
mation on high voltage
connectors for applications
not satisfied by compo-
nents listed here.
When ordering LGH
items: identify item, list
Tyco Electronics part num-
ber, and specify quantity.
Note: Special packaging,
special marking and/or
special testing of LGH
leads and receptacles
are available on request,
as well as custom-made
assemblies. Consult
Tyco Electronics for details.
Voltage Ratings
The voltage ratings tabulated here
and noted elsewhere apply to LGH
molded-end lead assemblies properly
mated with appropriate LGH receptacles,
which are properly potted or otherwise
protected on the back end.
LGH Lead Assemblies are
manufactured with a silicone
rubber end having a speci-
fied mating length (see
above table) molded onto
a16 AWG white silicone
rubber wire. These assem-
blies provide extreme
reliability and safety for
high voltage applications
in severeenvironments.
Single End Lead Assembly Single End Lead Assembly with Positive Stop Ferrule
Shielded Lead Assembly RFI Shielded Lead Assembly
Specifications
Lead Length Tolerance (including
pigtail) —Lengths to 24 [609.6],
±.125 [3.28]: 24 [609.6] and longer,
±1% of length.
Lead Insulation —Silicone rubber,
durometer reading 60 to 70 (reference
MIL-W-16878/8, Type FF); color, white.
Lead assemblies with other colors and
insulation materials such as PVC and
Teflon can be manufactured on request.
Conductors (per MIL-W-16878/8) —
LGH 1⁄2,LGH 1⁄2L, LGH 1, LGH 1L and
LGH 3 lead assemblies contain 41 strands
minimum of 32 AWG [0.03 mm2]wire,
silver plated, to compose a 16 AWG [1.25
mm2]stranded conductor .06 nominal
O.D. [1.5]; LGH 2 and LGH 4 lead assem-
blies contain 19 strands minimum of 29
AWG [0.07 mm2]wire, silver plated, to
compose a 16 AWG [1.25 mm2]stranded
conductor .06 nominal O.D. [1.5]. Silver
plating is per ASTM-B298-58T.
Pigtail —Solder dipped
Socket —Bronze per ASTM-140,
alloy B, gold plated per MIL-G-45204,
Type II, (0.000030 [0.00076] gold over
0.000030 [0.00076] nickel per QQ-N-
290). Socket is crimped to lead wire.
Cap Materials —Polycarbonate
glass-filled polyester or glass-filled
epoxy.
Molded End —Silicone rubber per
ZZ-R-765, Class IIa and IIb, grade 60.
Positive Stop Ferrule —Glass-filled
polyester
Marking —Per MIL-STD-130
Washer —TFE, electrical grade
Minimum Bend Radii,
nominal,for cables without
additional covering over
silicone insulation and for
shielded cable.
LGH Insulation Type
Series Standard Shielded
1⁄4,1⁄2,1⁄2L.25 .75
6.4 19.0
1, 1L, 3 .50 1.00
12.7 25.4
2, 4 1.00 1.50
25.4 38.1
Maximum Conductor
Resistance
All Series 4.75 ohms/1000 ft.
15.6 ohms/1000m.
LGH 1⁄4—22 AWG (19/34)
TEFLON is a trademark of E. I. DuPont
de Nemours and Company.