Specifications typical at Ta=+25℃, resistive load, nominal input voltage and rated output current unless otherwise noted.
These power converters require a minimum output loading to maintain specified regulation, operation under no-load conditions will not damage these modules;
however they may not meet all specifications listed.
We recommend to protect the converter by a slow blow fuse in the input supply line.
Other input and output voltage may be available, please contact factory.
That “natural convection” is about 20LFM but is not equal to still air (0 LFM).
It is not recommended to use water-washing process on SMT units.
Specifications are subject to change without notice.
Package Specifications
Mechanical Dimensions
24.0 [0.94]
Connecting Pin Patterns
17.78 [0.70]
3.11
[0.12]
16
15.24 [0.6]
10 9
2.54
[0.1]
13.7 [0.54]
18.1 [0.71]
16.6 [0.65]
13.7 [0.54]
1.6 [0.06]
1
7 8
1.00 [0.04]
9.0 [0.35]
2.54 [0.10]
S SEATING
PLANE
9.25 0.5
[0.36 0.02]
0.25 [0.01]
0~
4
►All
dimensions in mm (inches)
0.15 S
►Tolerance:
X.X±0.5 (X.XX±0.02)
X.XX±0.25 ( X.XXX±0.01)
►Pins
±0.05 (±0.002)
Pin Connections
Pin
1
7
8
9
10
16
Single Output
-Vin
NC
NC
+Vout
-Vout
+Vin
NC: No Connection
Dual Output
-Vin
NC
Common
+Vout
-Vout
+Vin
Physical Characteristics
Case Size
Case Material
Pin Material
Weight
:
:
:
:
24.0x13.7x9.0mm (0.94x0.54x0.35 inches)
Non-Conductive Black Plastic (flammability to UL 94V-0 rated)
Use a Cout 0.47μF ceramic capacitor. Scope measurement should be made by using a BNC socket, measurement bandwidth is 0-20 MHz. Position the load between
50 mm and 75 mm from the DC/DC Converter.
+Vin
Single Output
DC / DC
Converter
-Vin
-Out
+Out
Copper Strip
Cout
Copper Strip
Resistive
Scope
Load
+Vin
Dual Output
DC / DC
Converter
-Vin
+Out
Com.
-Out
Copper Strip
Cout
Copper Strip
Cout
Copper Strip
Scope
Scope
Resistive
Load
Technical Notes
Maximum Capacitive Load
The MSDEU02-HI series has limitation of maximum connected capacitance at the output. The power module may be operated in current limiting mode during start-up,
affecting the ramp-up and the startup time. For optimum performance we recommend 100μF maximum capacitive load for dual outputs and 330μF capacitive load for
single outputs. The maximum capacitance can be found in the data sheet.
Input Source Impedance
The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect the stability of the power module. In
applications where power is supplied over long lines and output loading is high, it may be necessary to use a capacitor at the input to ensure startup.
Capacitor mounted close to the power module helps ensure stability of the unit, it is recommended to use a good quality low Equivalent Series Resistance (ESR <
1.0Ω at 100 KHz) capacitor of a 2.2μF for the 5V input devices, a 1.0μF for the 12V input devices and a 0.47μF for the 24V input devices.
+
DC Power
Source
-
+
Cin
-Vin
-Out
+Vin
DC / DC
Converter
+Out
Load
Output Ripple Reduction
A good quality low ESR capacitor placed as close as practicable across the load will give the best ripple and noise performance. To reduce output ripple, it is
recommended to use 3.3μF capacitors at the output.
+
DC Power
Source
-
-Vin
+Vin
Single Output
DC / DC
Converter
-Out
+Out
+
DC Power
Source
-
+Vin
+Out
Dual Output
DC / DC Com.
Converter
Cout
Cout
Load
Load
Cout
Load
-Vin
-Out
Thermal Considerations
Many conditions affect the thermal performance of the power module, such as orientation, airflow over the module and board spacing. To avoid exceeding the
maximum temperature rating of the components inside the power module, the case temperature must be kept below 90℃. The derating curves are determined from
measurements obtained in a test setup.
Position of air velocity
probe and thermocouple
15mm / 0.6in
50mm / 2in
Air Flow
DUT
18, Sin Sin Road, An-Ping Industrial District, Tainan 702, Taiwan
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