QPL
MIL-STD-1553
INTERFACE
TRANSFORMERS
Pulse Specialty Components
Two Pearl Buck Court
Bristol, PA 19007-6812
Tel 215-781-6400 nFax 215-781-6403
www.pulsespecialty.com
For non-QPL pulse transformers....
In addition to the QPL transformers described in this
catalog, Pulse Specialty Components offers scores of
low-power pulse transformer models for commercial,
industrial, COTS, and other (non-QPL) military appli-
cations. These include:
nsurface-mount or through-the board
nstandard profile, low profile, or stacked
nsingle- or dual-ratio
nsingle- or dual-interface
For more information, request catalog
“Non-QPL MIL-STD-1553
Low-Power Pulse Transformers”
Contents
Single ratio
through-the-board
QPL pulse transformers....... 4
Dual ratio
through-the-board
QPL pulse transformers....... 6
Dual ratio
surface mount
QPL pulse transformers....... 8
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QPL Transformers — 2
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 trans-
formers. Today, as “Pulse
Specialty Components,” 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 15 years ago. To this
day, many manufacturers have dif-
ficulty producing components that
can survive the high-heat rigors of
surface mounting and the perform-
ance, reliabliability, part-to-part
repeatibility, and lifespan required
by high-rel military and commer-
cial applications.
This catalog covers all of our QPL
transformer products. Each part
has a military designation number
(found on DESC/DSCC approved
drawings) as well as our own prod-
uct number. These part numbers
are listed in the specification
tables.
About MIL-T-21038/27 and
MIL-PRF-21038/27
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 specifica-
tion allows designers to select a
QPL device and limit the testing to
what's needed for the application:
nLevel C - for high reliability
commercial/industrial applications;
nLevel M - for general purpose
military applications;
nLevel 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. A Level M part is exactly
the same as the original QPL prod-
uct that was defined by the earlier
MIL-T-21038/27 specification. A
Level T part receives the most
extensive testing along with ther-
mal cycling. For more details, see
next page.
COTS transformers.
Several of our QPL transformers
have non-QPL COTS counterparts
-- same component layout and
electrical characteristics but
they’re built for commercially-
oriented requirements, and manu-
factured in higher volume at lower
cost. We’ve noted where a COTS
counterpart to a QPL product
exists with the symbol shown here.
For more information on COTs
transformers, refer to our non-QPL
transformer catalog.
PULSE SPECIALTY COMPONENTS
PULSE SPECIALTY COMPONENTS
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QPL Transformers — 3
Table 1: Group A I nspec tion
Level "C" ** Level "M" Level "T"
Tests Sampling
Plan Tests Sampling
Plan Tests Sampling
Plan
NA Electrical
Character istics per
MIL-PRF-21038/27
sample per
T able 3 Thermal Shock 100%
NA Visu al and mechanical
inspection sample per
T able 3 Winding Con tinuity 100%
NA NA Electrical
Charact eristics per
MIL-PRF-21038/27
100%
NA NA Visu al and mech anical
inspection samp le p er
Table 3
Table 2: Group B Inspe cti on
Level "C" ** Level "M" Level "T"
Tests Sampling
Plan Tests Sampling
Plan Tests Sampling
Plan
NA Dielectric
Withstanding
Voltage
sample per
T able 3 Dielectric
Withstanding
Voltage
sample p er
Table 3
NA Insulatio n Resistance sample per
T able 3 Insulatio n Resistance sample p er
Table 3
Table 3: Sampling Plans for Gro up A and Group B inspect ions
Lot si ze Grou p A, group II ins pections Group B
1 to 5 all all
6 t o 13 all 5
14 to 50 13 5
51 to 90 13 7
91 to 150 13 11
151 to 280 20 13
281 to 500 29 16
50 1 to 1200 34 19
1,201 to 3,200 42 23
3,201 to 10,000 50 29
** Parts ordered to Level C are certified to comply with MIL-PRF-21038 Level C, however testing will be performed
per manufacturer's internal requirements and sampling rates.
MIL-PRF-21038/27 Inspection, Sampling, Testing
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PULSE SPECIALTY COMPONENTS
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QPL Transformers — 4
nqualified for use in QPL MIL-STD-1553 applications
nsingle ratio packages, see schematics
ndesigned, built, and tested to
MIL-PRF-21038 Levels C, M, and T*
npackage C is 4-lead; package D is
6-lead (center tap)
nbuilt in ISO 9002 facility
APPLICABLE SPECIFICATIONS
nMIL-STD-1553B
nMIL-STD-202
nMIL-T-10727
nMIL-PRF-21038/27*
nISO 9002
SUMMARY PERFORMANCE SPECIFICATIONS
Impedance.................................................................................. see table, next page
Droop.............................................................................................................. <20%
Overshoot.................................................................................................. +1V max
Common mode rejection (CMR)................................................................. >45 dB
Frequency range (no load)............................................................. 75 kHz to 1MHz
Operating temperature range........................................................... -55oC to 130oC
Weight....................................................................................................... <5 grams
Insulation resistance (min)........................................... 10K megohms @ 250 Vdc
Dielectric withstanding voltage................................................................ 100 Vrms
*MIL-PRF-21038E (8 July 1998) supersedes MIL-T-21038D (11 May 1979) and establishes
three product levels for low power pulse transformers:
nLevel C - for high reliability commercial/industrial applications;
nLevel M - for general purpose military applications;
nLevel T - for high reliability critical military applications.
Single ratio
through-the-board
QPL pulse transformers
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Contents”
PULSE SPECIALTY COMPONENTS
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QPL Transformers — 5
LINELINE LEVELLEVEL MILITARYMILITARY
DESIGNATIONDESIGNATION
NUMBERNUMBER
TECHNITROLTECHNITROL
PART NO.PART NO. PACKAGEPACKAGE HEIGHT HEIGHT
(in.) (in.)
MAXMAX
TERMINALSTERMINALS RATIORATIO
( (++3%)3%) RDCRDC
(ohm s) (ohm s)
MAXMAX
IMPEDANCEIMPEDANCE
(ohms) (ohms)
MINMIN
1 C M21038/27-05C QC1553-20 C .250 1-2:4-3 1:1.41 1-2 2. 2
4-3 2. 7 (4-3)
3,000
2 M M21038/27-05 Q1553-20
3 T M21038/27-05T QT1553-20
4 C M21038/27-06C QC1553-21 D .250 1-5:6-2 1CT:1CT 1-5 2. 5
6-2 2. 8 (6-2)
3,000
5 M M21038/27-06 Q1553-21
6 T M21038/27-06T QT1553-21
7 C M21038/27-07C QC1553-22 D .250 1-5:6-2 1CT:1.41CT 1-5 2. 2
6-2 2. 7 (6-2)
3,000
8 M M21038/27-07 Q1553-22
9 T M21038/27-07T QT1553-22
10 C M21038/27-08C QC1553-23 D .250 1-5:6-2 1CT:1.66CT 1-5 1.5
6-2 2. 4 (6-2)
3,000
11 M M21038/27-08 Q1553-23
12 T M21038/27-08T QT1553-23
13 C M21038/27-09C QC1553-24 D .250 1-5:6-2 1CT:2CT 1-5 1. 3
6-2 2. 6 (6-2)
3,000
14 M M21038/27-09 Q1553-24
15 T M21038/27-09T QT1553-24
16 C M21038/27-28C QC1553-25* D .250 1-5:6-2 1CT:1.5CT 1-3 0.90
6-2 2.5 (6-2)
3,000
17 M M21038/27-28 Q1553-25*
18 T M21038/27-28T QT1553-25*
19 C M21038/27-29C QC1553-51* D .250 1-5:6-2 1CT:1.79CT 1.5 0. 90
6-2 2.5 (6-2)
3,000
20 M M21038/27-29 Q1553-51*
21 T M21038/27-29T QT1553-51*
22 C M21038/27-30C QC1553-52* D .250 1-5:6-2 1CT:2.5CT 1-5 1.0
6-2 2.8 (6-2)
3,000
23 M M21038/27-30 Q1553-52*
24 T M21038/27-30T QT1553-52*
LINELINE LEVELLEVEL MILITARYMILITARY
DESIGNATIONDESIGNATION
NUMBERNUMBER
TECHNITROLTECHNITROL
PART NO.PART NO. PACKAGEPACKAGE HEIGHT HEIGHT
(in.) (in.)
MAXMAX
TERMINALSTERMINALS RATIORATIO
( (++3%)3%) RDCRDC
(ohm s) (ohm s)
MAXMAX
IMPEDANCEIMPEDANCE
(ohms) (ohms)
MINMIN
1 C M21038/27-05C QC1553-20 C .250 1-2:4-3 1:1.41 1-2 2. 2 (4-3)
*Designed for transceivers utilizing a single supply voltage (+5V).
CHARACTERISTICS
Package C Package D
Notes:
1. All dimensions are in inches.
2. Tolerances: .xx = +.008
3. All specifications and dimensions
are subject to change without notice.
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Contents”
nsingle ratio nthrough the board
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QPL Transformers — 6
Package A
SUMMARY PERFORMANCE SPECIFICATIONS
Impedance..................................................... see table, next page
Droop............................................................ <20%
Overshoot..................................................... +1V max
Common mode rejection (CMR)................. >45 dB
Frequency range (no load)........................... 75 kHz to 1MHz
Operating temperature range....................... -55oC to 130oC
Weight.......................................................... <5 grams
Insulation resistance (min)........................... 10K megohms
@ 250 Vdc
Dielectric withstanding voltage.................... 100 Vrms
APPLICABLE SPECIFICATIONS
nMIL-STD-1553B
nMIL-STD-202
nMIL-T-10727
nMIL-PRF-21038/27*
nISO 9002
*MIL-PRF-21038E (8 July 1998) supersedes
MIL-T-21038D (11 May 1979) and establishes
three product levels for low power pulse transformers:
nLevel C - for high reliability
commercial/industrial applications;
nLevel M - for general purpose military applications;
nLevel T - for high reliability critical military applications.
SCHEMATIC AND DIMENSIONS
Dual ratio
through-the-board
QPL pulse transformers
Package G
nqualified for use in QPL MIL-STD-1553 applications
ndual ratio in a single package, see schematic
ndesigned, built, and tested
to MIL-PRF-21038 Levels C, M, and T*
ntwo packages available: Package A without
standoffs, Package G with standoffs
nbuilt in ISO 9002 facility
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.250
Notes:
1. All dimensions are in inches.
2. Tolerances: .xx = +.008
3. All specifications and dimensions
are subject to change without notice.
LINELINE LEVELLEVEL MILITARYMILITARY
DESIGNATIONDESIGNATION
NUMBERNUMBER
TECHNITROLTECHNITROL
PART NO. PART NO. PACKAGEPACKAGE HEIGHTHEIGHT
(in.) (in.)
MAXMAX
TERMINALSTERMINALS RATIORATIO
((++3%)3%) RDCRDC
(ohms) (ohms)
MAXMAX
IMPEDANCEIMPEDANCE
(ohms) (ohms)
MINMIN
1CM21038/27-01C QC1553-1 A .25 0 1-3:4-8
1-3:5-7 1CT:1CT
1CT:.707CT 1-3 3. 0
4-8 3. 0 (1-3)
4000
2 M M21038/27-01 Q1553-1
3 T M21038/27-01T QT1553-1
4 C M21038/27-02C QC1553-2 A .25 0 1-3:4-8
1-3:5-7 1.4CT:1CT
2CT:1CT 1-3 3. 5
4-8 3. 0 (1-3)
7,200
5 M M21038/27-02 Q1553-2
6 T M21038/27-02T QT 1553-2
7 C M21038/27-03C QC1553-3 A .25 0 1-3:4-8
1-3:5-7 1.25CT:1CT
1.66CT:1CT 1-3 3. 2
4-8 3. 0 (1-3)
4000
8 M M21038/27-03 Q1553-3
9 T M21038/27-03T QT1553-3
10 C M21038/27-10C QC1553-5* A .250 1-3:4-8
1-3:5-7 1CT:2.12CT
1CT:1.5CT 1.3 1.0
4-8 3. 5 (4-8)
4,000
11 M M21038/27-10 Q1553-5*
12 T M21038/27-10T QT1553-5*
13 C M21038/27-21C QC1553-81 G .275 1-3:4-8
1-3:5-7 1CT:1CT
1CT:.707CT 1-3 3.0
4-8 3. 0 (1-3)
4,000
14 M M21038/27-21 Q1553-81
15 T M21038/27-21T QT1553-81
16 C M21038/27-22C QC1553-82 G .275 1-3:4-8
1-3:5-7 1.4CT:1CT
2CT:1CT 1-3 3. 5
4-8 3. 0 (1-3)
7,200
17 M M21038/27-22 Q1553-82
18 T M21038/27-22T QT1553-82
19 C M21038/27-23C QC1553-83 G .275 1-3:4-8
1-3:5-7 1.25CT:1CT
1.66CT:1CT 1-3 3. 2
4-8 3. 0 (1-3)
4,000
20 M M21038/27-23 Q1553-83
21 T M21038/27-23T QT1553-83
22 C M21038/27-24C QC1553-84 G .275 1-3:4-8
1-3:5-7 1CT:2.12CT
1CT:1.5CT 1-3 1. 0
4-8 3. 5 (4-8)
4,000
23 M M21038/27-24 Q1553-84
24 T M21038/27-24T QT1553-84
25 C M21038/27-25C QC1553-85 G .275 1-3:4-8
1-3:5-7 1CT:2.50CT
1CT:1.79CT 1-3 1. 0
4-8 3. 5 (4-8)
4,000
26 M M21038/27-25 Q1553-85
27 T M21038/27-25T QT1553-85
28 C M21038/27-26C QC1553-45* A .250 1-3:4-8
1-3:5-7 1CT:2.50CT
1CT:1.79CT 1-3 1. 0
4-8 3. 5 (4-8)
4,000
29 M M21038/27-26 Q1553-45*
30 T M21038/27-26T QT1553-45*
LINELINE LEVELLEVEL MILITARYMILITARY
DESIGNATIONDESIGNATION
NUMBERNUMBER
TECHNITROLTECHNITROL
PART NO. PART NO. PACKAGEPACKAGE HEIGHTHEIGHT
(in.) (in.)
MAXMAX
TERMINALSTERMINALS RATIORATIO
((++3%)3%) RDCRDC
(ohms) (ohms)
MAXMAX
IMPEDANCEIMPEDANCE
(ohms) (ohms)
MINMIN
1CM21038/27-01C QC1553-1 A .250 1-3:4-8 1CT:1CT 1-3 3. 0 (1-3)
CHARACTERISTICS
*Designed for transceivers utilizing a single supply voltage (+5V).
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QPL Transformers — 7
PULSE SPECIALTY COMPONENTS
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ndual ratio nthrough the board
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QPL Transformers — 8
Dual ratio
surface mount
QPL pulse transformers
SUMMARY PERFORMANCE SPECIFICATIONS
Impedance..................................................... see table,
next page
Droop............................................................ <20%
Overshoot..................................................... +1V max
Common mode rejection (CMR)................. >45 dB
Frequency range (no load)........................... 75 kHz to 1MHz
Operating temperature range....................... -55oC to 130oC
Weight.......................................................... <5 grams
Insulation resistance (min)........................... 10K megohms
@ 250 Vdc
Dielectric withstanding voltage.................... 100 Vrms
*MIL-PRF-21038E (8 July 1998) supersedes
MIL-T-21038D (11 May 1979) and establishes
three product levels for low power pulse transformers:
nLevel C - for high reliability
commercial/industrial applications;
nLevel M - for general purpose
military applications;
nLevel T - for high reliability
critical military applications.
nqualified for use in QPL MIL-STD-1553 applications
ndual ratio in a single package, see schematic
ndesigned, built, and tested
to MIL-PRF-21038 Level C, M, and T*
ntwo packages available: Package B has
gull-wing leads; Package F is flat pack
nbuilt in ISO 9002 facility
APPLICABLE SPECIFICATIONS
nMIL-STD-1553B
nMIL-STD-202
nMIL-PRF-21038/27*
nMIL-T-10727
nISO 9002
Note: Contact factory for SMQ1553-9
and FPQ1553-9 schematic
Package “B”
(side view)
Package “F”
(side view)
SCHEMATIC AND DIMENSIONS
PULSE SPECIALTY COMPONENTS
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QPL Transformers — 9
CHARACTERISTICS
LINELINE LEVELLEVEL MILITARYMILITARY
DESIGNATIONDESIGNATION
NUMBERNUMBER
TECHNITROLTECHNITROL
PART NO.PART NO. PACKAGEPACKAGE HEIGHT HEIGHT
(in.) (in.)
MAXMAX
TERMINALSTERMINALS RATIO RATIO
((++3%)3%) RDCRDC
(ohms) (ohms)
MAXMAX
IMPEDANCEIMPEDANCE
(ohm s) ( ohms)
MINMIN
1 C M21038/27-11C SMQC1553-6 B.250 1-3:4-8
1-3:5-7 1CT:1CT
1CT:.707CT 1-3 3.0
1-3 3.0 (1-3)
4,000
2 M M21038/27-11 SMQ1553-6
3 T M21038/27-11T SMQT1553-6
4 C M21038/27-12C SMQC1553-7 B.250 1-3:4-8
1-3:5-7 1.4CT:1CT
2CT:1CT 1-3 3.5
4-8 3.0 (1-3)
7,200
5 M M21038/27-12 SMQ1553-7
6 T M21038/27-12T SMQT1553-7
7 C M21038/27-13C SMQC1553-8 B.250 1-3:4-8
1-3:5-7 1.25CT:1CT
1.66CT:1CT 1-3 3.2
4-8 3.0 (1-3)
4,000
8 M M21038/27-13 SMQ1553-8
9 T M21038/27-13T SMQT1553-8
10 C M21038/27-15C SMQC1553-10 B.250 1-3:4-8
1-3:5-7 1CT:2.12CT
1CT:1.5CT 1-3 1.0
4-8 3.5 (4-8)
4,000
11 M M21038/27-15 SMQ1553-10
12 T M21038/27-15T SMQT1553-10
13 C M21038/27-16C FPQC1553-6 F.250 1-3:4-8
1-3:5-7 1CT:1CT
1CT:.707CT 1-3 3.0
4-8 3.0 (1-3)
4,000
14 M M21038/27-16 FPQ1553-6
15 T M21038/27-16T FPQT1553-6
16 C M21038/27-17C FPQC1553-7 F.250 1-3:4-8
1-3:5-7 1.4CT:1CT
2CT:1CT 1-3 3.5
4-8 3.0 (1-3)
7,200
17 M M21038/27-17 FPQ1553-7
18 T M21038/27-17T FPQT1553-7
19 C M21038/27-18C FPQC1553-8 F.250 1-3:4-8
1-3:5-7 1.25CT:1CT
1.66CT:1CT 1-3 3.2
4-8 3.0 (1-3)
4,000
20 M M21038/27-18 FPQ1553-8
21 T M21038/27-18T FPQT1553-8
22 C M21038/27-20C FPQC1553-10 F.250 1-3:4-8
1-3:5-7 1CT:2.12CT
1CT:1.5CT 1 -3 1.0
4 -8 3.5 (4-8)
4,000
23 M M21038/27-20 FPQ1553-10
24 T M21038/27-20T FPQT1553-10
25 C M21038/27-27C SMQC1553-45* B.250 1-3:4-8
1-3:5-7 1CT:2.50CT
1CT:1.79CT 1 -3 1.0
4 -8 3.5 (4-8)
4,000
26 M M21038/27-27 SMQ1553-45*
27 T M21038/27-27T SMQT1553-45*
28 C M21038/27-31C FPQC1553-45* F.250 1-3:4-8
1-3:5-7 1CT:2.50CT
1CT:1.79CT 1 -3 1.0
4 -8 3.5 (4-8)
4,000
29 M M21038/27-31 FPQ1553-45*
30 T M21038/27-31T FPQT553-45*
LINELINE LEVELLEVEL MILITARYMILITARY
DESIGNATIONDESIGNATION
NUMBERNUMBER
TECHNITROLTECHNITROL
PART NO.PART NO. PACKAGEPACKAGE HEIGHT HEIGHT
(in.) (in.)
MAXMAX
TERMINALSTERMINALS RATIO RATIO
((++3%)3%) RDCRDC
(ohms) (ohms)
MAXMAX
IMPEDANCEIMPEDANCE
(ohm s) ( ohms)
MINMIN
1 C M21038/27-11C SMQC1553-6 B.250 1-3:4-8 1CT:1CT 1-3 3.0 (1-3)
PULSE SPECIALTY COMPONENTS
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ndual ratio nsurface mounting
*Designed for transceivers utilizing a single supply voltage (+5V).
EXCEPT FOR THE ABOVE WARRANTY AND THE IMPLIED WARRANTY OF
TITLE, PULSE SPECIALTY COMPONENTS MAKES NO OTHER WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MER-
CHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. NO LIABILI-
TY IS ASSUMED FOR EXPENDABLE ITEMS SUCH AS LAMPS AND FUSES.
PULSE SPECIALTY COMPONENTS WILL NOT BE LIABLE FOR INCIDENTAL
OR CONSEQUENTIAL DAMAGES UNDER ANY CIRCUMSTANCES.
WARRANTY
Pulse Specialty Components warrants for a period of 90 days from the date
of shipment, that under normal use and service, its products will be free from
defects in workmanship and material. Pulse Specialty Components’ sole
responsibility under this warranty is, at its option, to repair or replace, with-
out charge, any defective product or part, or to credit buyer for the purchase
price of such defective product, provided:
1) Buyer promptly notifies Pulse Specialty Components in writing within
the warranty period, and
2) The defective product or part is returned to Pulse Specialty
Components with transportation charges prepaid by Buyer, and
3) Pulse Specialty Components examination of such product shall disclose
to its satisfaction that said defect exists and has not been caused by mis-
use, neglect, improper installation, repair or alteration, or accident.
Catalog QPL-0025 Issue Date 9/1/2000
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PULSE SPECIALTY COMPONENTS
