JF24S12-1250 Datasheet, PDF (10/15 Pages) Wall Industries,Inc. – DC/DC Converter

TECHNICAL DATASHEET
JF24S12-1250
Thermal Consideration
The power module operates in a variety of thermal environments; however, sufficient cooling should be provided
to help ensure reliable operation of the unit. Heat is removed by conduction, convention, and radiation to the
surrounding environment. Proper cooling can be verified by measuring the point as the figure below. The
temperature at this location should not exceed 120°C. When operating, adequate cooling must be provided to
maintain the test point temperature at or below 120°C. Although the maximum point temperature of the power
modules is 120°C, you can limit this temperature to a lower value for extremely high reliability.
Figure 8
EMC Considerations
Temperature Measure Point
Figure 9
Figure 10 Recommended Layout with Input
To meet conducted emissions EN55022 Class B needed the following components:
C2, C3, C4: 2.2uF/100V MLCC
C5, C6: 470pF/3KV MLCC
L1: Pulse Engineering type P0354, 1.17mH
L2: Inductor 10uH ψ0.35mm
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