Ericsson Internal
Flex confidential
TABLE OF CONTENTS 1 (1)
1 (4)
Prepared (also subject responsible if other) No.
Prepared (also subject responsible if other) No.
SEC/S Marshall Wang 001 52-EN/LZT 146 439 Uen
Marshall Wang
Approved Checked Date ReTechnical Specicationv Reference
Approved Checked Date Rev Reference
2011-06-22 A
EN/LZT 146 439 R2A November 2017
PK B 4204 Series DC-DC Converters 2017-11-22 C Y
Flex
Input 40-75 V, Output up to 20 A / 240 W
Key Features
Industry standard low profile Eighth-brick
58.4 x 22.7 x 10.1 mm (2.3 x 0.894 x 0.397 in.)
High efficiency, typ. 95.5% at 12 Vout, half load
1500 Vdc input to output isolation
Meets safety requirements according to IEC/EN/UL
60950-1
MTBF 3.4 Mh
General Characteristics
Fully regulated
Input under voltage protection
Over temperature protection
Output over voltage protection
Output short-circuit protection
Remote control
Optional baseplate
Safety Approvals Design for Environment
Highly automated manufacturing ensures quality
ISO 9001/14001 certified supplier
Meets requirements in high-
temperature lead-free soldering
processes.
Contents
Ordering Information .............................................................2
General Information .............................................................2
Safety Specification .............................................................3
Absolute Maximum Ratings ............................................................. 4
Electrical Specification
12 V, 20 A / 240 W PKB 4204 ........................................ 5
EMC Specification .............................................................9
Operating Information ...........................................................10
Thermal Consideration ...........................................................11
Connections ...........................................................12
Mechanical Information ...........................................................13
Soldering Information ...........................................................16
Delivery Information ...........................................................17
Product Qualification Specification ...........................................................18
2
Flex confidential
2 (4)
Prepared (also subject responsible if other) No.
Marshall Wang
Technical Specication
Approved Checked Date Rev Reference
EN/LZT 146 439 R2A November 2017
PK B 4204 Series DC-DC Converters 2017-11-22 C Y
Flex
Input 40-75 V, Output up to 20 A / 240 W
Compatibility with RoHS requirements
Ordering Information
The products are compatible with the relevant clauses and
Product program Output
requirements of the RoHS directive 2011/65/EU and have a
PKB 4204 12 V, 20 A / 240 W
maximum concentration value of 0.1% by weight in
homogeneous materials for lead, mercury, hexavalent
Product number and Packaging
chromium, PBB and PBDE and of 0.01% by weight in
PKB 4204 n1 n2 n3 n4 n5 n6
homogeneous materials for cadmium.
Options n n n n n n
1 2 3 4 5 6
Mounting
Exemptions in the RoHS directive utilized in Flex Power
Modules products are found in the Statement of
Remote control logic
Compliance document.
Baseplate
Increased stand-off
Flex Power Modules fulfills and will continuously fulfill all its
obligations under regulation (EC) No 1907/2006 concerning
Pin length
the registration, evaluation, authorization and restriction of
Delivery package
chemicals (REACH) as they enter into force and is through
product materials declarations preparing for the obligations
Options Description
to communicate information on substances in the products.
n PI Through hole
1
Quality Statement
SI Surface mount
The products are designed and manufactured in an
n Negative *
2
industrial environment where quality systems and methods
P Positive
like ISO 9000, Six Sigma, and SPC are intensively in use to
boost the continuous improvements strategy. Infant
n Open frame *
3
mortality or early failures in the products are screened out
HS Baseplate
and they are subjected to an ATE-based final test.
Increased stand-off
n M Conservative design rules, design reviews and product
4
qualifications, plus the high competence of an engaged
n 5.30 mm *
5
work force, contribute to the high quality of the products.
LA 3.69 mm
LB 4.57 mm
Warranty
n
6
/B Tray Warranty period and conditions are defined in Flex Power
Modules General Terms and Conditions of Sale.
Example: a standard through hole, positive logic, baseplate
with increased stand-off short pin product would be
Limitation of Liability
PKB4204PIPHSMLA.
Flex Power Modules does not make any other warranties,
* Standard variant (i.e. no option selected).
expressed or implied including any warranty of
merchantability or fitness for a particular purpose
General Information
(including, but not limited to, use in life support
Reliability
applications, where malfunctions of product can cause
injury to a persons health or life).
The failure rate ( ) and mean time between failures
(MTBF= 1/ ) is calculated at max output power and an
Flex 2017
operating ambient temperature (TA) of +40C. Flex Power
The information and specifications in this technical
Modules uses Telcordia SR-332 Issue 2 Method 1 to
specification is believed to be correct at the time of
calculate the mean steady-state failure rate and standard
publication. However, no liability is accepted for
deviation ( ).
inaccuracies, printing errors or for any consequences
thereof. Flex reserves the right to change the
Telcordia SR-332 Issue 2 also provides techniques to
contents of this technical specification at any time without
estimate the upper confidence levels of failure rates based
prior notice.
on the mean and standard deviation.
Mean steady-state
Std. deviation,
293 nFailures/h 37.7 nFailures/h
MTBF (mean value) for the PKB 4000 series = 3.4 Mh.
MTBF at 90% confidence level = 2.9 Mh