M21038/27-24T PULSE ELECTRONICS CORPORATION, M21038/27-24T Datasheet - Page 2

• Manufacturer Part Number: M21038/27-24T
• Manufacturer: PULSE ELECTRONICS CORPORATION

Specifications of M21038/27-24T

• Lead Free Status / RoHS Status: Supplier Unconfirmed

MIL-STD-1553
Transformers
As
Division,” we were the first to
achieve QPL status for MIL-STD
1553B interface transformers, also
known as low-power pulse trans-
formers.
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,
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-PRF-21038/27
MIL-PRF-21038E (8 July 1998)
supersedes MIL-T-21038D (11
May 1979) and establishes three
TWO PEARL BUCK COURT
“Technitrol
MIL-T-21038/27
P
Today,
ULSE
S
PECIALTY
Components
as
Interface
formerly
“Pulse
l
and
BRISTOL, PA 19007-6812
C
OMPONENTS
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:
n Level C - for high reliability
commercial/industrial applications;
n Level M - for general purpose
military applications;
n 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. 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
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.
QPL Transformers — 2
characteristics
l
TEL [phone]
but
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FAX [phone]
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
l
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