product information
This range of EMI/RFI Suppression
Components has been designed for use
in military applications where electrical
transients, however generated, would
cause equipment malfunction. The units
are primarily intended for use in electrical
ignition circuits for explosive
components. All single line filters have
been approved to the exacting
requirements of the UK Ministry of
Defence Specification WE772. Twin line
filters comprise 2 discrete lines and are
made in exactly the same manner as the
single line devices. Whilst the WE772
specification does not accommodate
twin line devices, such devices are
widely accepted for use in Ministry
projects where a twin line package is
found desirable. WE772 requires that
filters shall be able to continuously
dissipate 2 watts of rf power without
unacceptable degradation of the insertion
loss. All devices in the 0141 Series have
been shown to be capable of dissipation
of 10 watts of rf power.
For advice on the use of filters, please
contact the Application Engineering
Department.
RFI suppression filters
for armament systems
0141 Series
technical data
Rated voltage: 85 VDC plus switching
transients to BS3G100
Operating temperature range:
-60˚C to +150˚C
Proof voltage: 250 VDC for 30 seconds
Shock: 1000gn (9800m/s
2
)
Random motion vibration: Up to 0.2g /Hz
Band width 10 to 200Hz
2
Single line filters
2.54
1.16
8.38
5.72
A/F
7.94
nom
A/F
12.83
8.38
4.87
18.87
14.96
all dimensions are in millimetres
and are maximum unless
otherwise stated
4.09
1.65d
1.0diam
hole each
end
1
/
4
x 28
UNF 2A
thread
1.19 nom
Linear acceleration: 250gn (2452m/s
2
)
Relative humidity: Up to 95%
Twin line filters
4.00
4.00
12.3
4.20
A
B
0.5
4.3
16.00
Air pressure:
54mm to 800mm Hz(72mbar to 1066mbar)
Finish: Electro tin flow brightened
Weight
complete with nut and washer:
Single Line: 5.25gmax.
Twin Line: 500(L) Series 21.5g; 600(P) Series
22.5g
Mounting torque:
Single Line: 1.7 - 2.8 N-m (15 - 25 Ibf-in)
Twin Line: 2.8 - 3.9 N-m (25 - 34 lbf-in)
Insertion loss: See page 4
18.00
A/F
18.0
0.5
7.15
1.57
M14 x 1.0 thread
configuration
Pi
L
A
22.7
18.8
B
18.4
14.5
All ranges are available with tag or pin terminations.
If pin terminations are ordered, please add suffix ‘P’
to code (ie 0141 - 002P)
product information
Single line Pi filters
type number
inductance series resistance
total
capacitance at 1kHz
Ω
µH min
µF min
shunt resistance R
D
MΩ
current
amps
current pulse to
WE772 amps
50ms
300ms
10s
60s
0141-002
0141-003
0141-004
0141-005
0141-006
0141-007
0141-008
0141-009
0141-012
0141-013
0141-014
0141-018
0141-023
0141-024
0141-026
0141-027
0141-028
0141-029
0141-032
0141-035
0141-043
0141-044
0141-046
0141-047
0141-048
0141-049
0141-200
0141-201
0141-210
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.04
0.04
0.04
0.04
0.04
0.04
0.2
0.2
0.02
0.02
0.02
0.02
0.02
0.02
0.4
0.4
0.4
80
80
80
80
80
80
80
80
80
80
80
80
2400
2400
2400
2400
2400
2400
260
260
3700
3700
3700
3700
3700
3700
25
25
25
0.06 max
2.5 ± 15%
5.2 ± 15%
0.06 max.
2.5 ± 15%
5.2 ± 15%
0.4 + 0-30%
0.4 + 0-30%
0.06 max.
2.5 ± 15%
5.2 ± 15%
0.4 + 0-30%
2.5 ± 15%
5.2 ± 15%
2.5 ± 15%
5.2 ± 15%
0.4 + 0-50%
0.4 + 0-50%
0.06 max.
0.06 max.
2.5 ± 15%
5.2 ± 15%
2.5 ± 15%
5.2 ± 15%
0.4 + 3-0%
0.4 + 0-30%
0.015 max.
0.015 max.
0.015 max.
10 ± 25%
10 ± 25%
10 ± 25%
500 min.
500 min.
500min.
10 ± 25%
500 min.
4.7 ± 25%
4.7 ± 25%
4.7 ± 25%
4.7 ± 25%
4.7 ± 25%
4.7 ± 25%
500 min.
500 min.
4.7 ± 25%
500 min.
4.7 ± 25%
500 min.
4.7 ± 25%
4.7 ± 25%
500 min.
500 min.
4.7 ± 25%
500 min.
10 ± 25%
500 min.
4.7 ± 25%
4.0
0.75
0.50
4.0
0.75
0.50
2.0
2.0
4.0
0.75
0.50
2.0
0.75
0.50
0.75
0.50
2.0
2.0
4.0
4.0
0.75
0.5
0.75
0.5
2.0
2.0
10.0
10.0
10.0
-
6.0
6.0
-
6.0
6.0
-
-
-
6.0
6.0
-
6.0
6.0
6.0
6.0
-
-
-
-
6.0
6.0
6.0
6.0
-
-
-
-
-
17.0
3.0
3.0
17.0
3.0
3.0
17.0
17.0
17.0
3.0
3.0
17.0
3.0
3.0
3.0
3.0
17.0
17.0
17.0
17.0
3.0
3.0
3.0
3.0
17.0
17.0
-
-
-
-
-
-
-
-
-
3.0
3.0
-
-
-
3.0
-
-
-
-
3.0
3.0
-
-
-
-
-
-
3.0
3.0
-
-
-
10.0
-
-
10.0
-
-
-
-
10.0
-
-
-
-
-
-
-
-
-
10.0
10.0
-
-
-
-
-
-
-
-
-
C
1
threaded end
series 400/900
L
C
2
R
D
C
1 =
C
2
C
1 =
C
2 =
C
3 =
C
4
threaded end
series 400/900
C
1
L
1
C
2
R
D
R
D
L
1
= L
2
C
3
L
2
C
4
Twin line Pi filters
For each single line within the filter
type number
inductance series resistance
total
capacitance at 1kHz
Ω
µH min
µF min
shunt resistance R
D
MΩ
current
amps
current pulse to
WE772 amps
50ms
0141-602
0141-603
0141-604
0141-605
0141-606
0141-607
0141-608
0141-609
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
80
80
80
80
80
80
80
80
0.06 max.
2.5 ± 15%
5.2 ± 15%
0.06 max.
2.5 ± 15%
5.2 ± 15%
0.4 + 0-30%
0.4 + 0-30%
10 ± 25%
10 ± 25%
10 ± 25%
500 min.
500 min.
500 min.
10 ±25%
500 min.
4.0
0.75
0.50
4.0
0.75
0.50
2.0
2.0
-
6.0
6.0
-
6.0
6.0
-
-
300ms
17.0
3.0
3.0
17.0
3.0
3.0
17.0
17.0
10s
-
-
-
-
-
-
3.0
3.0
60s
10.0
-
-
10.0
-
-
-
-
product information
Single Line L Filters
type number
inductance
total
capacitance at 1kHz
µH min
µF min
series resistance
Ω
shunt resistance
R
D
MΩ
current
amps
current pulse to
WE772 amps
50ms
0.06 max.
2.5 ± 15%
5.2 ± 15%
0.06 max.
2.5 ± 15%
5.2 ± 15%
0.4 + 0-30%
0.4 + 0-30%
0.06 max.
2.5 ± 15%
5.2 ± 15%
0.4 + 0-30%
0.4 + 0-30%
0.4 + 0-30%
0.06 max.
0.06 max.
0.06 max.
0.06 max.
0.4 + 0-30%
0.4 + 0-30%
10 ± 25%
10 ± 25%
10 ± 25%
500 min.
500 min.
500 min.
10 ± 25%
500 min.
4.7 ± 25%
4.7 ± 25%
4.7 ± 25%
4.7 ± 25%
4.7 ± 25%
500 min.
500 min.
4.7 ± 25%
4.7 ± 25%
500 min.
4.7 ± 25%
500 min.
4.0
0.75
0.50
4.0
0.75
0.50
2.0
2.0
4.0
0.75
0.5
2
2.0
2.0
4.0
4.0
4.0
4.0
2.0
2.0
-
6.0
6.0
-
6.0
6.0
-
-
-
6.0
6.0
-
-
-
-
-
-
-
-
-
300ms
17.0
3.0
3.0
17.0
3.0
3.0
17.0
17.0
17.0
3.0
3.0
17.0
17.0
17.0
17.0
17.0
17.0
17.0
17.0
17.0
10s
-
-
-
-
-
-
3.0
3.0
-
-
-
3.0
3.0
3.0
-
-
-
-
3.0
3.0
60s
10.0
-
-
10.0
-
-
-
-
10.0
-
-
-
-
-
10.0
10.0
10.0
10.0
-
-
0141-302/-402
0141-303/-403
0141-304/-404
0141-305/-405
0141-306/-406
0141-307/-407
0141-308/-408
0141-309/-409
0141-312/-412
0141-313/-413
0141-314/-414
0141-318/-418
0141-958
0141-959
0141-965
0141-975
0141-982
0141-985
0141-998
0141-999
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.1
0.02
0.02
0.1
0.1
0.02
0.02
450
450
450
450
450
450
450
450
450
450
450
450
2000
2000
260
260
450
450
2000
2000
L
threaded end
series 400/900
C
threaded end
series 300
L
1
threaded end
series 500
C
1
R
D
R
D
L
2
C
2
C
1 =
C
2
threaded end
series 700
R
D
L
1
= L
2
Twin Line L Filters
for each single line within the filter
type number
inductance
total
capacitance at 1kHz
µH min
µF min
series resistance
Ω
shunt resistance
R
D
MΩ
current
amps
current pulse to
WE772 amps
50ms
0141-502/-702
0141-503/-703
0141-504/-704
0141-505/-705
0141-506/-706
0141-507/-707
0141-508/-708
0141-509/-709
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
450
450
450
450
450
450
450
450
0.06 max.
2.5 ± 15%
5.2 ± 15%
0.06 max.
2.5 ± 15%
5.2 ± 15%
0.4 + 0-30%
0.4 + 0-30%
10 ± 25%
10 ± 25%
10 ± 25%
500 min.
500 min.
500 min.
10 ± 25%
500 min.
4.0
0.75
0.50
4.0
0.75
0.50
2.0
2.0
-
6.0
6.0
-
5.0
6.0
-
-
300ms
17.0
3.0
3.0
17.0
3.0
3.0
17.0
17.0
10s
-
-
-
-
-
-
3.0
3.0
60s
10.0
-
-
10.0
-
-
-
-
Special requirements
Where the space available for the location of
the filter is such that the size or the method of
mounting prohibits the use of a standard
range product, special metal work can be
designed to facilitate the inclusion of the filter
device within the system.
Whilst such devices are not encompassed by
the WE772 specification, by utilising only
those components which are employed in the
approved ranges, through structural similarity
and through the quality assurance disciplines
being maintained to the same high level, these
special devices are manufactured in
accordance with WE772 requirement.
Such devices are used in various Ministry of
Defence contracts and fully satisfy the
requirements of the relevant authorities.
Product safety
Operation outside the stated ratings shown in
this data sheet may result in premature failure
or a safety hazard. Product Safety information
is available on request.
product information
0141 000 & 600 series
Balanced termination impedance - 50Ω
insertion loss dB
insertion loss dB
90
90
0141- 200 series
Balanced termination impedance - 50Ω
60
30
0
100k
1M
10M
frequency Hz
0
30
60
WE772 specification limit
WE772 specification limit
100k
1M
10M
frequency Hz
Balanced termination impedance
insertion loss dB
insertion loss dB
90
90
Balanced termination impedance
m
ste
sy
m
ste
Ω
sy
1
60
30
10
30
10
0
Ω
00
Ω
10
60
0
Ω
m
s
te
sy
m
ste
em
yst
1
Ω
sy
s
tem
sys
Ω
10
Company Approvals: BS EN 9001:1994
and QAS/34/61 REG No. FM 01759
CECC Approval No. M/0022, BS 9000
Approval No. 1048/M
©Copyright Oxley Developments
Company Ltd
0
100k
1M
10M
frequency Hz
0
100k
1M
10M
frequency Hz
Un
balanced termination impedance
insertion loss dB
insertion loss dB
90
90
Un
balanced termination impedance
m
em
t
ste
tem
ys
Ω
sy
Ω
sys
s
0
1
Ω
1
0
em
tem
tem
yst
s
sys
0
Ω
s
1
Ω
sy
1
0
Ω
0
10
60
60
0
10
30
0
100k
1M
10M
frequency Hz
0
10M
frequency Hz
Insertion loss to WE772 over temperature range:
-40°C to +150°C
100k
30
1M
300, 400, 500, 700 & 900 series
Balanced termination impedance - 50Ω
insertion loss dB
insertion loss dB
90
90
Unbalanced termination impedance
nd
OXLEY
Ω
d1
60
60
WE772 specification limit
30
30
ct
en
du
ctor
-in
Ω
indu
-
50
50
Ω
end
end
ca
p
cap
e
or
1
Ω
Priory Park Ulverston Cumbria
LA12 9QG United Kingdom
telephone: 44 (1229) 582621
fax: 44 (1229) 585090
10M
frequency Hz
0
100k
1M
10M
frequency Hz
0
100k
1M
e-mail: sales@oxleygroup.com
OXLEY INC.
Balanced termination impedance
insertion loss dB
insertion loss dB
90
90
Unbalanced termination impedance
1
Ω
25 Business Park Drive,
Branford CT 06405 USA
telephone: (00) 1 (203) 488-1033
fax: (00) 1 (203) 481-6971
e-mail: inquire@oxleyinc.com
10M
frequency Hz
stem
1
Ω
sy
tem
1000
Ω
system
sys
10
Ω
100k
1M
10M
frequency Hz
30
0
0
30
ct
r
en
du
ucto
-in
Ω
-ind
50
50
Ω
end
end
ca
p
cap
60
60
e
or
nd
Ω
d1
100k
1M
www.oxleygroup.com/systems
ODC:SM:40615/1/9/2002
Typical 0141 Series insertion loss characteristics over temperature range -60°C to +150°C, unless otherwise stated
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