which it takes a 'set' makes it one of the easiest
of the 'high performance' wires to install.
Stripping is done with conventional die blade
strippers.
For details of appropriate tools see separate
wire handling guide. The tin-plated conductor
usually specified is easily soldered or crimped.
The insulation may be hot stamp marked or
printed and does not need etching before
potting.
Lengths
Spec 44 is available in long continuous lengths
and can be supplied for use on automatic cut
and strip wire preparation machines.
Typical properties
Temperature rating
Voltage rating (thin wall)
Voltage rating (thick wall)
Tensile strength and elongation of insulation
Notch propagation, 0.05mm notch
Solder iron resistance (370
°
C, 1 minute)
Shrinkage, 200
°
C
Low temperature bend
Voltage withstand (thin wall)
Insulation resistance (20
°
C)
Resistance: fuels, oils, solvents
-65
°
C to +150
°
C
600 V
2500 V
30 N/mm
2
, 230%
Pass
Pass
<1%
-65
°
C
2500 V
1500 M ohms for 1 km
Pass
Environmental performance
Temperature rating
Spec 44 wire and cable is rated for continuous
operation from -65
°
C to +150
°
C and for short
periods at temperatures as high as 300
°
C. Heat
ageing tests are routinely performed at
temperatures of 200
°
C (168 h) and 300
°
C (6 h).
In addition Spec 44's insulation will not shrink
back under repeated cycling.
Mechanical performance
Spec 44 wire provides better cut through
resistance than some wires with much thicker
walls. 600 volt equipment wire 44A0111 (0.19
mm wall) has 40% greater cut through
resistance than 600 volt PTFE insulated wire
(0.25 mm wall).
Solder iron/Overload resistance
The radiation crosslinking of the materials used
in Spec 44 makes them non-melting at high
temperature. As a result Spec 44 wire is
resistant to prolonged contact with solder irons
and is resistant to current overloads which
would melt most thermoplastic insulations.
Chemical resistance
The irradiated dual wall construction of Spec
44 wire is highly resistant to many acids, alkalis,
hydrocarbon solvents,fuels, lubricants, water
and many missile fuels and oxidisers.
Cold flow
Radiation cross-linking of Spec 44 prevents
cold flow of the insulation - a recognised
problem of some uncrosslinked materials.
Voltage ratings
Standard available voltage ratings for Spec 44
wire are 600 volts (0.19 mm wall thickness),
1000 volts (0.28 mm wall) and 2500 volts
(0.48 mm wall).
Electrical arc track resistance
Spec 44 insulation demonstrates a total
resistance to arc tracking under both wet and
dry conditions at aircraft system voltages.
Low outgassing
For use in space applications, special
constructions of Spec 44 wire are available
with low outgassing characteristics, for use in
an environment of high vacuum and high
temperature.
Fire hazard performance
Flammability
BS4066 vertical flammability
S424 14751 (Swedish chimney)
NFC 32070 (2) (French chimney)
IEC 332 part 3 (Cable ladder)
Smoke/Toxicity Index
Smoke Index, Def Stan 61-12 (18)
Toxicity Index, Def Stan 61-12 (18)
Oxygen Index, NES 714
Temperature Index, NES 715
Pass
Pass
Pass
Pass
6 per metre of wire
0.8 per metre of wire
30% Oxygen
>300
°
C
Spec 44
Spec 44 wire and cable - nominal sizes, strandings and weights
Primary wires/Twisted pair
44A011X (600 V)
primary wire
44A021X (1000 V) 44A031X (2500 V) 44A081X (600 V)
primary wire
primary wire
airframe wire
44A012X (600 V)
twisted pair
Stranding CSA
OD
Weight
Size (mm)
(mm
2
)
(mm)
(g/m)
30 7/0.10
0.06
0.68
1.00
28 7/0.13
0.09
0.76
1.36
26* 19/0.10
0.15
0.86
1.98
24 19/0.13
0.25
1.02
2.97
22 19/0.16
0.40
1.19
4.38
20 19/0.20
0.60
1.40
6.50
18 19/0.25
1.00
1.65
9.90
16 19/0.29
1.25
1.83
12.58
14 19/0.36
2.00
2.26
19.65
12 37/0.32
3.00
2.74
30.68
10 37/0.40
5.00
3.28
46.28
8 133/0.29
*For 44A0211-26 the stranding is 7/0.16mm
OD
(mm)
Weight
(g/m)
1.49
2.23
3.43
4.92
7.30
10.90
13.88
20.90
31.34
50.4
87.6
OD
(mm)
Weight
(g/m)
OD
(mm)
Weight
(g/m)
1.02
1.17
1.37
1.57
1.85
2.06
2.49
2.98
3.73
5.23
1.44
1.75
1.98
2.23
2.46
2.92
3.32
4.09
5.56
4.18
6.12
8.65
12.38
15.37
23.13
34.32
54.02
96.20
1.37
1.57
1.78
2.03
2.26
2.74
3.20
3.94
5.44
3.73
5.52
7.91
11.49
14.32
22.08
32.23
51.80
92.94
OD
(mm)
1.37
1.52
1.73
2.03
2.38
2.79
3.30
3.65
4.52
5.48
Weight
(g/m)
2.12
2.90
4.10
6.08
8.91
13.30
20.21
25.73
40.15
62.63
Screened and jacketed cable
44A111X (600 V)
1 conductor
44A121X (6000 V)
1 conductor
44A181X (600 V)
1 conductor
44A112X (600 V)
2 conductors
Stranding
OD
Weight OD
Weight
OD
Size (mm)
(mm)
(g/m)
(mm)
(g/m)
(mm)
30
7/0.10
28
7/0.13
1.60
5.33
26
19/0.10
1.57
5.82
1.73
6.51
24
19/0.13
1.83
8.20
1.98
9.18
2.26
22
19/0.16
2.00
10.30
2.24
12.35
2.57
20
19/0.20
2.26
14.02
2.54
17.40
2.77
18
19/0.25
2.62
19.70
2.82
22.61
3.02
16
19/0.29
2.79
23.40
3.02
26.63
3.25
14
19/0.36
3.22
32.50
3.45
36.15
3.73
12
37/0.32
3.70
45.67
4.14
49.55
4.19
Size 10 to 4 also available in some constructions depending on conductor type and construction required.
Weight
(g/m)
11.69
15.39
19.09
23.98
27.97
38.48
52.10
OD
(mm)
2.23
2.38
2.59
2.99
3.35
3.76
4.32
4.67
5.53
6.50
Weight
(g/m)
8.20
9.40
12.05
16.12
21.50
27.97
38.24
44.93
64.28
91.51
Spec 44 wire and cable (Def Stan 61-12 Part 18 Issue 4 Type 1) (Maintenance)
Limited fire hazard equipment wire (pliable)
Cable electrical - Type 1SBM screened and jacketed
Diameter
Diameter
Diameter
over
Raychem
over
over
Raychem
Conductor Stranding insulation
Weight
part
screen
jacket
Weight
part
size
(mm)
(mm)
(gm/m)
number
(mm)
(mm)
(gm/m)
number
30
7/0.10 0.68
1.00
44M9976-30-†
28
7/0.12 0.73
1.40
44M9976-28-†
26
19/0.10 0.88
2.00
44M9976-26-†
1.33
1.80
7.5
44M9995-26-†-†
24
19/0.12 0.98
3.00
44M9976-24-†
1.43
1.90
9.2
44M9995-24-†-†
22
19/0.15 1.13
4.40
44M9976-22-†
1.58
2.05
11.1
44M9995-22-†-†
20
19/0.20 1.40
6.55
44M9976-20-†
1.83
2.30
14.6
44M9995-20-†-†
18
19/0.25 1.65
9.90
44M9976-18-†
2.08
2.55
19.3
44M9995-18-†-†
16
19/0.30 1.90
14.15
44M9976-16-†
2.48
2.95
24.9
44M9995-16-†-†
14
37/0.25 2.25
18.62
44M9976-14-†
2.65
3.13
30.9
44M9995-14-†-†
12
37/0.30 2.60
25.70
44M9976-12-†
3.00
3.48
43.4
44M9995-12-†-†
The cable jackets on type 1SBM are specified black to Def. Stan. 61-12 pt 31, other colours are available.
†Colour code suffix - see part numbering system. Single and multicore screened and jacketed cables are available using Type1 components.
Spec 44
Part numbering system
44
X
X
X
X
X-
Size-
X/X- X
Jacket colour
(in accordance with MIL-STD-681,
white preferred)
Primary wire insulation colour
(in accordance with MIL-STD-681)
0=Black
3=Orange
7=Violet
1=Brown
4=Yellow
8=Grey
2=Red
5=Green
9=White
2L=Pink
6=Blue
Additional number after base colour
indicates stripe
Conductor size
Conductor type
1 - Tin-plated copper
2 - Silver-plated copper
4 - Silver-plated high strength copper alloy
(SPHSCA)
Number of conductors
1-9
Class of wire
1 - 600 V equipment wire
2 - 1000 V equipment wire
3 - 2500 V equipment wire
4 - Space wire 600 V
8 - Airframe wire - medium weight
Constructions
0 - Primary wire & unscreened,
unjacketed cables
1 - Round braid screened & jacketed
†
2 - Flat braid screened & jacketed
†
3 - Round braid, screened, no jacket
†
4 - Jacketed, no screen
5 - Spirally screened & jacket
7 - 9 Special constructions
†
Screen material same as conductor
material except screen for type 4
conductor is tinned copper
Type
A- AWG conductor
M - Metric conductor
AM - Special
CD - Custom Design
B - Special
/ - Space & specials
D - Defence Standard 61-12 Part 26
Basic specification number
Typical ordering example
Ordering information
3 conductors, brown, yellow with green stripe, blue, white jacket. If 600 volt, round braid,
20 AWG tinned conductor, total part number is 44A1131-20-1/45/6-9.
Standard equipment wires (44A0111 12 to 30 AWG) in most common AWGs and colours are
kept in stock. In addition, many of the most commonly used single/pair and triple screened cables
are also stock items, as are some airframe constructions.
Other constructions and custom designed wire and cable are available on request.
Raychem and Spec 44 are trademarks of Tyco Electronics Corporation.
All of the above information, including illustrations, is believed to be reliable. Users, however, should independently evaluate the suitability of each product for their
application. Tyco Electronics makes no warranties as to the accuracy or completeness of the information and disclaims any liability regarding its use. Tyco Electronics
only obligations are those in the Standard Terms and Conditions of Sale for this product and in no case will Tyco Electronics be liable for any incidental, indirect or
consequential damages arising from the sale, resale, use or misuse of the product. Tyco Electronics Specifications are subject to change without notice. In addition
Tyco Electronics reserves the right to make changes in materials or processing, without notification to the Buyer, which do not affect compliance with any applicable
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