Datasheet

Output Capacitive Load

These converters do not require external capacitance added to achieve

rated speciﬁ 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.

The maximum rated output capacitance and ESR speciﬁ 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.

OKY-T/3,T/5-D12 Series

Adjustable Output 3 and 5-Amp DOSA-SMT DC/DC Converters

MDC_OKY-T/3,T/5-D12 Series.B15 Page 8 of 21

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Product Label

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:

The label contains three rows of information:

First row – Murata Power Solutions logo

Second row – Model number product code (see table)

Third row – Manufacturing date code and revision level

The manufacturing date code is four characters:

First character – Last digit of manufacturing year, example 2009

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

Figure 4. Label Artwork Layout

Y01003 Product code

Mfg.

date

code

Revision levelYMDX Rev.

Model Number Product Code

OKY-T/3-D12N-C Y00103

OKY-T/3-D12P-C Y01103

OKY-T/5-D12N-C Y00105

OKY-T/5-D12P-C Y01105

OKY-T/5-D12N-C-CIS

YC00105