MIL-STD-1553 Transformers
Stacked Dual SMT non-QPL Interface Transformers
These non-QPL interface transformers are built and tested in ISO 9001 approved facilities. They conform to all electrical and physical parameters of MIL-PRF-21038/27. Choose one of three operating
temperature ranges including 0° to +70°C, -40° to +85°C, or -55° to +125°C.
Operating
Temperature
0° to 70°C
-40° to +85°C
-55° to +125°C
Flat Pack
Prefix
SFQC
SFQN
SFQ
Gull Wing
Prefix
SGQC
SGQN
SGQ
Summary Performance Specifications
Impedance
Droop
Overshoot
Common Mode Rejection (CMR)
Frequency Range (no load)
Operating Temperature Range
Weight
Insualtion Resistance (MIN)
Dielectric Withstanding Voltage
(see table below)
£ 20%
±1V MAX
³ 45dB
75kHz to 1MHz
(see table above)
£ 5 grams
10K MΩ @ 250Vdc
100Vrms
Dual ratio, dual interface (see schematic)
Surface Mount package
MSL: 3
For use in MIL-STD-1553 applications
Vertically stacked for minimum XY area
Performance to MIL-PRF-21038 requirements
Built in ISO 9001 facility
Applicable specifications:
n MIL-STD-1553B
n MIL-STD-202
n MIL-PRF-21038
3 (13)
n ISO
9001
Schematic 2 (12)
8 (18)
7 (17)
6 (16)
5 (15)
4 (14)
1 (11)
Characteristics
Part Number Termimals Ratio (±3%) RDC (Ω MAX) Impedance (Ω MIN)
1-3 : 4-8 (11-13 : 14-18)
1CT:1CT
1-3 (11-13) = 3.5
(1-3 & 11-13)
(XXXX)1553-1
1-3 : 5-7 (11-13 : 15-17)
1CT:.707CT
4-8 (14-18) = 3.0
4,000
1-3 : 4-8 (11-13 : 14-18)
1.4CT:1CT
1-3 (11-13) = 3.0
(1-3 & 11-13)
(XXXX)1553-2
1-3 : 5-7 (11-13 : 15-17)
2CT:1CT
4-8 (14-18) = 3.0
7,200
1-3 : 4-8 (11-13 : 14-18)
1.25CT:1CT
1-3 (11-13) = 3.2
(1-3 & 11-13)
(XXXX)1553-3
1-3 : 5-7 (11-13 : 15-17)
1.66CT:1CT
4-8 (14-18) = 3.0
4,000
2
1-3 : 4-8 (11-13 : 14-18)
1CT:2.12CT
1-3 (11-13) = 1.0
(4-8 & 14-18)
(XXXX)1553-5
1-3 : 5-7 (11-13 : 15-17)
1CT:1.5CT
4-8 (14-18) = 3.5
4,000
2
1-3 : 4-8 (11-13 : 14-18)
1CT:2.5CT
1-3 (11-13) = 1.0
(4-8 & 14-18)
(XXXX)1553-45
1-3 : 5-7 (11-13 : 15-17)
1CT:1.79CT
4-8 (14-18) = 3.5
4,000
1
NOTE: 1. Refer to prefix table (above) to select temperature range. 2. Designed for transceivers utilizing a single supply voltage (+5V).
Flat Pack
Gull Wing
.630 MAX
16,00
.630 MAX
16,00
.020 ± .002
Ø 0,51 ± 0,05
Mechanicals
Notes:
1. All dimensions: in inches.
2. Tolerances: .xx = +.008
3. All specifications and
dimensions are subject
to change without notice.
1
.340
8,64
MAX
.100 TYP
2,54
.100 TYP
2,54
14
15
16
17
18
1312 11
1 2 3
8
7
6
5
4
.630
16,00
MAX
1.125 ± .030
28,58 ± 0,76
14
15
16
17
18
13 12 11
1 2 3
8
7
6
5
4
.630
16,00
MAX
.020 ± .002
Ø 0,51 ± 0,05
.500
16,00
MIN
pulseelectronics.com
.340
8,64
MAX
.070 ± .015
1,78 ± 0,38
.250 ± .030
6,35 ± 0,76
.004
0,10
MIN
M231.B (11/14)
