Prepared (also subject responsible if other)
1/1301-BMR 674T0e2cUhennical Speciﬁcation
APnKdeUr4s 1S1e0lliDn /PKU4111D Series DC-DC Converte2r0s16-04-15
Input 36-75 V, Output up to 33.3 A / 150 W
3.3 V, 33.3 A / 110 W
5 V, 30 A / 150 W
Product number and Packaging
n1 n2 n3 n4 n5
Remote Control logic
Delivery package information
n1 SI Surface mount
PI Through hole
n2 Negative *
n3 Open frame*
n4 5.30 mm *
LA 3.69 mm (Pin-cut)
LB 4.57 mm (Pin-cut)
n5 /B Tray
/C Tape and Reel (SMD Version)
Example: a through hole mounted 5V product with baseplate, positive logic,
4.57mm pin length with tray package would be PKU4111DPIPHSLB/B.
Note: The combination of SI and HS is not available.no
* Standard variant (i.e. no option selected).
The failure rate () and mean time between failures
(MTBF= 1/) is calculated at max output power and an
operating ambient temperature (TA) of +40°C. Flex Power
Modules uses Telcordia SR-332 Issue 2 Method 1 to
calculate the mean steady-state failure rate and standard
Telcordia SR-332 Issue 2 also provides techniques to
estimate the upper confidence levels of failure rates based
on the mean and standard deviation.
Mean steady-state failure rate,
The products are compatible with the relevant clauses and
requirements of the RoHS directive 2011/65/EU and have a
maximum concentration value of 0.1% by weight in
homogeneous materials for lead, mercury, hexavalent
chromium, PBB and PBDE and of 0.01% by weight in
homogeneous materials for cadmium.
Exemptions in the RoHS directive utilized in Flex Power
Modules products are found in the Statement of
Flex Power Modules fulfills and will continuously fulfill all its
obligations under regulation (EC) No 1907/2006 concerning
the registration, evaluation, authorization and restriction of
chemicals (REACH) as they enter into force and is through
product materials declarations preparing for the obligations
to communicate information on substances in the products.
The products are designed and manufactured in an
industrial environment where quality systems and methods
like ISO 9000, Six Sigma, and SPC are intensively in use to
boost the continuous improvements strategy. Infant
mortality or early failures in the products are screened out
and they are subjected to an ATE-based final test.
Conservative design rules, design reviews and product
qualifications, plus the high competence of an engaged
work force, contribute to the high quality of the products.
Warranty period and conditions are defined in Flex Power
Modules General Terms and Conditions of Sale.
Limitation of Liability
Flex Power Modules does not make any other warranties,
expressed or implied including any warranty of
merchantability or fitness for a particular purpose
(including, but not limited to, use in life support
applications, where malfunctions of product can cause
injury to a person’s health or life).
© Flex 2018
The information and specifications in this technical
specification is believed to be correct at the time of
publication. However, no liability is accepted for
inaccuracies, printing errors or for any consequences
thereof. Flex reserves the right to change the
contents of this technical specification at any time without
MTBF (mean value) for the PKU4111D series = 12.90 Mh.
MTBF at 90% confidence level = 11.51 Mh
Compatibility with RoHS requirements