OKI-T/3-W40 Series
Adjustable Output 3-Amp DOSA-SMT DC/DC Converters
Performance Specifications and Ordering Guide
ORDERING GUIDE
Output
Input
Package, C72
Root Model ➁
IOUT
R/N (mVp-p) ➃ Regulation (Max.)
IIN,
IIN,
Efficiency
VOUT (Amps Power
VIN Nom. Range no load full load
(Volts) ➅ max) (Watts)
Max.
Line Load (Volts) (Volts) ➅ (mA) ➄ (Amps) Min. Typ.
Case C72 ➀
Pinout
OKI-T/3-W40N-C 0.7525-5.5 3
15
0.47 x 0.82 x 0.34
20
±0.2% ±0.25% 24
16-40
40
0.71 86.5% 88%
P78
(11.9 x 20.8 x 8.5)
OKI-T/3-W40P-C 0.7525-5.5 3
15
0.47 x 0.82 x 0.34
20
±0.2% ±0.25% 24
16-40
40
0.71 86.5% 88%
P78
(11.9 x 20.8 x 8.5)
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 Polarity
P = Positive Polarity
N = Negative Polarity
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
email: sales@murata-ps.com
05 Nov 2009 MDC_OKI-T/3-W40 Series.A01_D8 Page 2 of 12