OKY-T/3,T/5-D12 Series
Adjustable Output 3 and 5-Amp DOSA-SMT DC/DC Converters
Output Capacitive Load
These converters do not require external capacitance added to achieve
rated speci?cations. Users should only consider adding capacitance to reduce
switching noise and/or to handle spike current load steps. Install only enough
capacitance to achieve noise objectives. Excess external capacitance may
cause regulation problems, degraded transient response and possible oscilla-
tion or instability.
Product Label
The maximum rated output capacitance and ESR speci?cation is given for a
capacitor installed immediately adjacent to the converter. Any extended output
wiring or smaller wire gauge or less ground plane may tolerate somewhat
higher capacitance. Also, capacitors with higher ESR may have a larger capaci-
tance. What counts here is the instantaneous maximum output current during
power-on charge-up and switching currents under load. Excessive current will
trip the overcurrent detection and shut off the converter.
Because of the small size of these products, the product label contains a
character-reduced code to indicate the model number and manufacturing date
code. Not all items on the label are always used. Please note that the label dif-
fers from the product photograph on page 1. Here is the layout of the label:
Model Number
OKY-T/3-D12N-C
OKY-T/3-D12P-C
OKY-T/5-D12N-C
OKY-T/5-D12P-C
Product Code
Y00103
Y01103
Y00105
Y01105
Mfg.
date
Y01003
YMDX Rev.
Product code
Revision level
OKY-T/5-D12N-C-CIS
YC00105
code
Figure 4. Label Artwork Layout
The label contains three rows of information:
First row – Murata Power Solutions logo
Second row – Model number product code (see table)
The manufacturing date code is four characters:
First character – Last digit of manufacturing year, example 200 9
Second character – Month code (1 through 9 and O through D)
Third character – Day code (1 through 9 = 1 to 9, 10 = O and
11 through 31 = A through Z)
Fourth character – Manufacturing information
Third row – Manufacturing date code and revision level
www.murata-ps.com/support
MDC_OKY-T/3,T/5-D12 Series.B15 Page 8 of 21
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