Page 4 - MPD MSR7805W Datasheet
P. 4
Typical Application Circuit 4: External EMC Components

The diagram above illustrates a typical connection of the 3. Recommended values for components are:
MSR7805W series for applications that require meeting EMC Component Value Component Value 4. The values for C1 and C2 are given in the
standards. Some notes on this diagram (starting with the input “Component Values” table on page 2.
circuit) are: MOV S20K30 LDM2 12 µH 5. The LC fi lter LOUT & COUT is only needed if very
1. It is recommended that an external fuse be used. The recom- LDM1 82 µHC1/ C2 See Note 4 low ripple is required. Recommended values
mended fuse is shown in the model chart on page 2. C3 680 µF/50V LOUT 10 - 47 µH for these components are given in the table at
2. An external MOV is recommended on the input to protect the C4 4.7 µF/50V COUT 22 µF left.
unit in the event of a surge. A recommended value is given in
the table at right.

Related products that
Mechanical Dimensions
may be of interest:


• 500 mA Output Current
• Miniature “Open Board” Construction
• EN 60950 Approved
• Low Cost


Pin Connection
Positive Output
Pin Function
1 +VIN
Negative Output
Pin Function
1 +VIN
• 1A Output Current
• Miniature Construction
• EN 60950 Approved
• Low Cost
• All dimensions are typical in inches (mm)
• Tolerance x.xx = ±0.01 (±0.25)
• Pin 1 is marked by a “dot” or indentation
on the front of the unit
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