OKI-T/3-W40 Series

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

Performance Speciﬁcations Summary and Ordering Guide

ORDERING GUIDE

Output

Input

Package, C72

Root Model ➁

IOUT R/N (mVp-p) ➃ Regulation (Max.)

IIN, IIN,

VOUT (Amps Power

VIN Nom. Range no load full load

(Volts) ➅ max) (Watts)

Max.

Line Load (Volts) (Volts) ➅ (mA) ➄ (Amps)

Efﬁciency

Min. Typ.

Case C72 ➀

Pinout

OKI-T/3-W40N-C 0.7525-5.5 3

15

20

±0.2% ±0.25% 24

16-40

40

0.71

86.5%

88%

0.82 x 0.47 x 0.34

(20.8 x 11.9 x 8.5)

P78

OKI-T/3-W40P-C 0.7525-5.5 3

15

20

±0.2% ±0.25% 24

16-40

40

0.71

86.5%

88%

0.82 x 0.47 x 0.34

(20.8 x 11.9 x 8.5)

P78

➀ Dimensions are in inches (mm).

➁ These are partial model numbers. Please refer to the part number structure for complete ordering part numbers.

➂ All specifications are at nominal line voltage, Vout=nominal (5V for W40 models) and full load, +25 ˚C. unless

otherwise noted.

Output capacitors are 1 μF ceramic and 10 μF electrolytic in parallel. Input cap is 22 μF. See detailed specifications.

I/O caps are necessary for our test equipment and may not be needed for your application.

PART NUMBER STRUCTURE

➃ Ripple/Noise is shown at Vout = 1V.

➄ No load input current is shown at Vout = 0.75V.

➅ For Vout = 1V, Vin ≤ 32V. For Vout = 0.75V, Vin ≤ 24V.

OK I - T / 3 - W40 N - C

Okami Non-isolated PoL

Surface Mount

Trimmable Output

Voltage Range

0.7525-5.5V

Maximum Rated Output

Current in Amps

RoHS Hazardous

Substance Compliance

C = RoHS-6 (does not claim EU RoHS exemption

7b–lead in solder)

On/Off Logic

P = Positive Logic

N = Negative Logic

Input Voltage Range

16-40V

Note: Some model number combinations

may not be available. Contact Murata

Power Solutions for availability.

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:

Mfg.

XXXXXX

Product code

date YMDX Rev. Revision level

code

Figure 2. Label Artwork Layout

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

Model Number

OKI-T/3-W40N-C

OKI-T/3-W40P-C

Product Code

I00103

I01103

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

www.murata-ps.com/support

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