MIL-STD-1553 TRANSFORMERS
USA 858 674 8100
•
Germany 49 7032 7806 0
•
Singapore 65 6287 8998
•
Shanghai
86 21 32181071
•
China 86 755 33966678
•
Taiwan 886 3 4643715
www.pulseeng.com
MC118 (1/08)
MIL-STD-1553 TRANSFORMERS
TABLE of CONTENTS
QPL
MIL-STD-1553 Interface Transformers Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Single Ratio Transformers
- Through Hole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Dual Ratio Transformers
- Through Hole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Dual Ratio Transformers
- Surface Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9
non-QPL
MIL-STD-1553 Interface Transformers Overview
Dual Ratio Transformers
- Single Interface, Through Hole, Low Profile
. . . . . . . . . . . . . . . . . . . . . . . . . . . .10-11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Dual Ratio Transformers
- Single Interface, Surface Mount, Low Profile, Flat Pack and Gull Wing . . . . . . . . .13
Dual Ratio Transformers
- Dual Interface, Through Hole, Low Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Dual Ratio Transformers
- Dual Interface, Surface Mount, Low Profile, Flat Pack and Gull Wing . . . . . . . . . .15
Dual Ratio Transformers
- Dual Interface, Through Hole, Stacked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Dual Ratio Transformers
- Dual Interface, Surface Mount, Stacked, Flat Pack and Gull Wing . . . . . . . . . . . .17
Dual Ratio Transformers
- Single Interface, Surface Mount, Hermatically-sealed, Flat Pack . . . . . . . . . . . . .18
Dual Ratio Transformers
- Single Interface, Through Hole, Standard Profile Value Series (COTS) . . . . . . . .19
Dual Ratio Transformers
- Single Interface, Through Hole and Surface Mount, Stacked, Low Profile . . . .20-21
Warranty
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
USA 858 674 8100
•
Germany 49 7032 7806 0
•
Singapore 65 6287 8998
•
Shanghai
86 21 32181071
•
China 86 755 33966678
•
Taiwan 886 3 4643715
www.pulseeng.com
1
MC118 (1/08)
MIL-STD-1553 TRANSFORMERS
QPL Interface Transformers Overview
QPL MIL-STD-1553 Interface Transformers
As “Technitrol Components Division,” we were the first
to achieve QPL status for MIL-STD-1553B interface
transformers, also known as low-power pulse
transformers. Today, as “Pulse Military Aerospace
Division,” our QPL transformer line includes a wide
selection of products for each of the product levels called
for by MIL-PRF-21038/27, formerly MIL-T-21038/27.
We also were the first to achieve QPL status on surface-
mount MIL-STD-1553 pulse transformers -- more than
20 years ago. To this day, many manufacturers have
difficulty producing components that can survive the
high-heat rigors of surface mounting and the
performance, reliabliability, part-to-part repeatibility, and
lifespan required by high-rel military and commercial
applications.
The first several pages of this catalog cover all of our
QPL transformer products. Each part has a military des-
ignation number (found on DESC/DSCC approved draw-
ings) as well as our own product number. These part
numbers are listed in the specification tables.
MIL-PRF-21038E
(8 July 1998) supersedes
MIL-T-21038D
(11 May 1979) and establishes three
product levels for low power pulse transformers. The
new specification allows designers to select a QPL
device and limit the testing to what is needed for the
application:
■
Level C
- for high reliability commercial/industrial
applications;
■
Level M
- for general purpose military applications;
■
Level T
- for high reliability critical military
applications.
Level C
parts are tested to our internal specifications.
Group A or B testing is not performed on
Level C
parts.
Level M
parts is exactly the same as the original QPL
product that was defined by the earlier
MIL-T-21038/27
specification.
Level T
part receives the most extensive
testing along with thermal cycling. For information about
testing to selected levels, see next page.
USA 858 674 8100
•
Germany 49 7032 7806 0
•
Singapore 65 6287 8998
•
Shanghai
86 21 32181071
•
China 86 755 33966678
•
Taiwan 886 3 4643715
www.pulseeng.com
2
MC118 (1/08)
MIL-STD-1553 TRANSFORMERS
QPL Interface Transformers Overview
MIL-PRF-21038/27 Inspection, Sampling, Testing
Table 1 — Group A Inspection
Level “C”**
Level “M”
Level “T”
Tests
N/A
Sampling Plan
N/A
Tests
Electrical Characteristics
per MIL-PRF-21038/27
Visual and Mechanical
Inspection
N/A
Sampling Plan
Sample per
Table 3
Sample per
Table 3
N/A
Tests
Thermal Shock
Sampling Plan
100%
N/A
N/A
Winding Continuity
Electrical Characteristics
per MIL-PRF-21038/27
Impedance
Visual and Mechanical
Inspection
100%
N/A
N/A
100%
Sample per
Table 3
Sample per
Table 3
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Table 2 — Group B Inspection
Level “C”**
Level “M”
Level “T”
Tests
N/A
Sampling Plan
N/A
Tests
Dielectric Withstanding
Voltage
Sampling Plan
Sample per
Table 3
Sample per
Table 3
Tests
Dielectric Withstanding
Voltage
Insulation
Resistance
Sampling Plan
Sample per
Table 3
Sample per
Table 3
N/A
N/A
Insulation
Resistance
Table 3 — Sampling Plans for Group A and Group B Inspections
Lot Size
1 to 5
6 to 13
14 to 50
51 to 90
91 to 150
151 to 280
281 to 500
501 to 1200
1,201 to 3,200
3,201 to 10,000
Group A, Group II Inspections
All
All
13
13
13
20
29
34
42
50
Group B
All
5
5
7
11
13
16
19
23
29
**NOTE:
Parts ordered to Level C are certified to comply with MIL-PRF-21038 Level C, however testing is performed
per manufacturer's internal requirements and sampling rates.
USA 858 674 8100
•
Germany 49 7032 7806 0
•
Singapore 65 6287 8998
•
Shanghai
86 21 32181071
•
China 86 755 33966678
•
Taiwan 886 3 4643715
www.pulseeng.com
3
MC118 (1/08)
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