Model Number Product Code
OKX-T/16-D12N-C X00116
OKX-T/16-D12P-C X01116
OKX-T/16-D12PL6-C X01116L
OKX2-T/16-D12N-C X20116
OKX2-T/16-D12P-C X21116
OKX-T/10-D12N-C X00110
OKX-T/10-D12P-C X01110
OKX2-T/10-D12N-C X20110
OKX2-T/10-D12P-C X21110
Soldering Guidelines
Murata Power Solutions recommends the specifi cations below when installing these
converters. These specifi cations vary depending on the solder type. Exceeding these
specifi cations may cause damage to the product. Your production environment may dif-
fer; therefore please thoroughly review these guidelines with your process engineers.
Wave Solder Operations for through-hole mounted products (THMT)
For Sn/Ag/Cu based solders:
Maximum Preheat Temperature 115° C.
Maximum Pot Temperature 270° C.
Maximum Solder Dwell Time 7 seconds
For Sn/Pb based solders:
Maximum Preheat Temperature 105° C.
Maximum Pot Temperature 250° C.
Maximum Solder Dwell Time 6 seconds
Specifi cation Notes, Cont.:
(7) “Hiccup” overcurrent operation repeatedly attempts to restart the converter with a brief, full-current output.
If the overcurrent condition still exists, the restart current will be removed and then tried again. This short
current pulse prevents overheating and damaging the converter. Once the fault is removed, the converter
immediately recovers normal operation.
(8) Output noise may be further reduced by adding an external filter. At zero output current, the output may
contain low frequency components which exceed the ripple specification. The output may be operated
indefinitely with no load.
(9) All models are fully operational and meet published specifications, including “cold start” at –40°C.
(10) Regulation specifications describe the deviation as the line input voltage or output load current is varied
from a nominal midpoint value to either extreme.
(11) Other input or output voltage ranges will be reviewed under scheduled quantity special order.
(12) Maximum PC board temperature is measured with the sensor in the center of the converter.
(13) Do not exceed maximum power specifications when adjusting the output trim.
(14) The maximum output capacitive loads depend on the the Equivalent Series Resistance (ESR) of the external
output capacitor and, to a lesser extent, the distance and series impedance to the load. Larger caps will
reduce output noise but may change the transient response. Newer ceramic caps with very low ESR may
require lower capacitor values to avoid instability. Thoroughly test your capacitors in the application. Please
refer to the Output Capacitive Load Application Note.
(15) Do not allow the input voltage to degrade lower than the input undervoltage shutdown voltage at all times.
Otherwise, you risk having the converter turn off. The undervoltage shutdown is not latching and will
attempt to recover when the input is brought back into normal operating range.
(16) The outputs are not intended to sink appreciable reverse current.
Output Voltage Adjustment
The output voltage may be adjusted over a limited range by connect-
ing an external trim resistor (Rtrim) between the Trim pin and Ground. The
Rtrim resistor must be a 1/10 Watt precision metal fi lm type, ±1% accuracy
or better with low temperature coeffi cient, ±100 ppm/°C. or better. Mount
the resistor close to the converter with very short leads or use a surface
mount trim resistor.
In the tables opposite, the calculated resistance is given. Do not exceed
the specifi ed limits of the output voltage or the converter’s maximum power
rating when applying these resistors. Also, avoid high noise at the Trim
input. However, to prevent instability, you should never connect any capaci-
tors to Trim.
R
TRIM () =
________________
–1000
VOUT – 0.7525V
10500
OKX2-T/10-D12, -T/16-D12
Output Voltage Calculated Rtrim (KΩ)
5.0 V. 1.472
3.3 V. 3.122
2.5 V. 5.009
2.0 V. 7.416
1.8 V. 9.024
1.5 V. 13.05
1.2 V. 22.46
1.0 V. 41.424
0.7525 V. ∞ (open)
Resistor Trim Equation, D12 models:
OKX T/10 & T/16-D12 Series
Adjustable DOSA 10/16-Amp SIP DC/DC Converters
MDC_OKX2_T10T16.B06 Page 4 of 16
www.murata-ps.com/support
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
differs from the product photograph on page 1. Here is the layout of the label:
The label contains two rows of information:
First row – Model number product code (see table)
Second 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 = Jan-Sep;
O, N, D = Oct, Nov, Dec)
Third character – Day code (1 through 9 = 1 to 9, 10 = O and
11 through 31 = A through Z)
Fourth character – Manufacturing information
Figure 2. Label Artwork Layout
Y01003 Product code
Mfg.
date
code
Revision levelYMDX Rev.
