Pascall Electronics Limited
Westridge Business Park
Cothey Way
Ryde, Isle of Wight
PO33 1QT UK
Tel +44 (0) 1983 817300
Fax +44 (0) 1983 564708
Email enquiries@pascall.co.uk
www.pascall.co.uk
ELECTRONICS LIMITED
05/05
MIL-STD 1553 DATA BUS TRANSFORMERS
3Kohms minimum impedance at -55 ºC
BS9000 release available for both leaded and surface mount packages
Release to BS9720 Generic Specification (full or basic assessment available)
Extended range giving wide choice of turns ratios
Upper operating temperature limit to +125 ºC
Surface Mount Option
The Pascall P1200 Series of Data Bus Transformers is designed to satisfy the
requirements of MIL-STD-1553A / B (Def. Stan. 00-18 (Part 2) / 1) and may be
used in either the bus coupling or isolation configurations.
The Transformers are compatible with currently available transceivers and
integrated terminals, meeting all the electrical requirements of Manchester II serial
bi-phase data transmission including MACAIR specifications. They are also
designed to meet the requirements of MIL-T-21038 Grades 5&7 / Class S / Life X.
ELECTRONICS LIMITED
MIL-STD 1553 DATA BUS TRANSFORMERS
MIL-STD 1553 TRANSFORMERS
Model
Part No. 1,2 : 3,4 C.T. Housing
P1241
P1242
1-00152
1-00195
1.41 : 1
1.41 : 1
N
N
D
B
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
MIL-STD 1553 TRANSFORMERS
ModelPart No. 1,3 : 4,81,3 : 5,7 C.T. Housing
P1264
P1265
P1266
P1267
P1269
P1271
P1275
P1277
P1284
P1289
P1760T2
P1299
1-00130
1-00171
1-00273
1-00769
1-00168
1-02822
1-01028
1-03842
1-04405
1-04817
1-07860
1-06198
1.41 : 1
1.41 : 1
1.66 : 1
2.0 : 1
0.46 : 1
1.41 : 1
2.0 : 1
1.0 : 1.0
1.0 : 1
1.2 : 1
1.4 : 1
2.0 : 1
0.66 : 1
0.4 : 1
1.0 : 1
1.41 : 1
0.56 : 1
0.56 : 1
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
A
B
C
A
A
A
A
C
SM
SM
SM
SM
Other models & custom versions available. MIL STD 1553 Coupling Boxes available.
Minimum impedance
between pins 1, 2 : 3, 4
Minimum impedance
between pins 1, 2 : 3, 4
BS Released parts please contact sales office.
OPERATING CONDITIONS
Parameter
Open Circuit
Primary Impedance
Droop
Common Mode Rejection Ratio
Overshoot and Ringing
Inter Winding Resistance
Turns Ratio Tolerance
Peak Working Voltage
*Isolation Resistor Tolerance
*Isolation Resistor Rating
Parameter
Frequency Range
Operating Temperature
Storage Temperature
Symbol Min Max
Max
Unit
Unit
ELECTRICAL CHARACTERISTICS
f
T
T
amb
st
75
-55
-55
1000
+125
+150
KHz
ºC
ºC
Test Conditions Min Typ
Test Voltage = 500 V
T = 70 ºC
amb
Overall Conditions
T = +25 ºC f = 75 kHz
amb
3
45
50
8
10
50
±0.5
15
±1.0
±3
50
±2
1.0
Kohms
%
dB
VOLTS
Mohms
%
VOLTS
%
WATTS
* Where fitted
MIL-STD 1553 DATA BUS TRANSFORMERS
ELECTRONICS LIMITED
A / B / C
D
1
2
3
4
5
6
7
8
STYLE A AS SHOWN
STYLE B LESS PINS 2, 4, 6, 8
STYLE C LESS PINS 5, 7
15.9
15.9
3
2
1
8
7
6
5
4
PASCALL
P-12xx
PASCALL
P-12xx
12.7
10.0 MIN
7.6 MAX
2.54
TYP.
Ø0.5
1
2
4
3
Ø1.0
11.4
6.0 MIN
6.35
12.0 MAX
3
4
2
1
22.0
16.0
SM
DIMENSIONS IN mm TOLERANCES ± 0.3
UNLESS OTHERWISE STATED
5 MAX
16.5
16.5
3
2
1
8
7
6
5
4
PASCALL
P-12xx
30 x 1.25 TYP IN 8 PLACES
2.54
TYP
1
2
3
4
5
6
7
8
ELECTRONICS LIMITED
MTL STD 1553A/B DATA BUS COUPLERS
Pascall has designed and manufactured a range of MIL STD 1553 Data Bus couplers
with terminations for 1 to 8 stub connections, suitable for simulator/test applications.
Housed in aluminium enclosures with TRB connectors for ease of connection these
couplers provide a simple in line solution for data bus loom applications.
Fault isolation resistors can be fitted as an optional extra.
Operating frequency range of 75KHz to 1MHz.
1-11271 1 stub 1-11275 5 stub
1-11272 2 stub 1-11276 6 stub
1-11273 3 stub 1-11277 7 stub
1-11274 4 stub 1-11278 8 stub
