TDK-Lambda CUS200LD Manuel D'installation page 20

Convection Cooling
Maximum output power and output current derating vs. ambient temperature.
Mounting A
Ta (°C) Load (%)
-25 - +40 100
+70 40
120
100
85
80
60
40
20
0
-25-20-15-10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75
* Low Temperature Operation Area (A) for conduction and convection cooling
This power supply uses NTC power thermistor to limit the inrush current, and due to NTC characteristics of
high impedance at low temperature, output voltage may be fluctuated during cold start up or sudden change of
load conditions, such as no load to maximum load transient in this area when input voltage is below 115VAC.
Output voltage will be stable after power supply warm up, or the input voltage is higher than 115VAC.
Please note further derating of input voltage is required at Vin=85~115VAC (See 4-1)
Please evaluate power supply low temperature start up and dynamic load response under worst case conditions
in actual application to ensure no problem of the power supply operation.
6. EMC and Wiring Method
This power supply is primarily designed and manufactured to be used and enclosed in other equipment. The
installation, wiring, grounding and end application of the switching power supply in the equipment system may
influence its EMC characteristics. Therefore, the EMC performance has to be tested on end system level.
Additional filtering may be required depends on application and installation methods.
(1) The output load line and input line shall be separated, and use all lines as thick and short as possible to make
lower impedance. The output load line and input line shall be twisted or use shielded wire to improve noise
sensitivity.
(2) Noise can be eliminated by attaching a capacitor to the load terminals.
(3) The recommended wire type, torque and crimp-type terminal :
Recommended
Wire
M3.0 Screws
AWG 12-22
0.50N·m (5.1kgf·cm) ~ 0.70N·m (7.1kgf·cm)
Note : For recommended wire type, refer to wire maker
recommended allowable current and voltage drop.
Especially for 5V models, output current is large.
Thick diameter wire is recommended.
Mounting B,C
Ta (°C)
-25 - +35
+65
Ta (°C)
Recommended torque
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TDK-Lambda
CUS200LD
INSTRUCTION MANUAL
Mounting D,E
Load (%) Ta (°C)
100 -25 - +30
40 +60
Mounting A
Mounting B,C
Mounting D,E
Recommended crimp-type terminal
D (MAX) t (MAX)
6.5mm 1.2mm
Load (%)
100
40