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CMH04 Datasheet(PDF) 2 Page - Toshiba Semiconductor

Part No. CMH04
Description  Switching Mode Power Supply Applications
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Maker  TOSHIBA [Toshiba Semiconductor]
Homepage  http://www.semicon.toshiba.co.jp/eng
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CMH04 Datasheet(HTML) 2 Page - Toshiba Semiconductor

   
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CMH04
2006-11-08
2
Marking
Abbreviation Code
Part No.
H4
CMH04
Standard Soldering Pad
Handling Precaution
The absolute maximum ratings denote the absolute maximum ratings, which are rated values and must not be
exceeded during operation, even for an instant. The following are the general derating methods that we recommend
when you design a circuit with a device.
VRRM: We recommend that the worst case voltage, including surge voltage, be no greater than 80% of the absolute
maximum rating of VRRM for a DC circuit and be no greater than 50% of that of VRRM for an AC circuit.
VRRM has a temperature coefficient of 0.1%/℃. Take this temperature coefficient into account designing a
device at low temperature.
IF(AV): We recommend that the worst case current be no greater than 80% of the absolute maximum rating of
IF(AV). Carry out adequate heat design. If you can’t design a circuit with excellent heat radiation, set the
margin by using an allowable Tamax-IF (AV) curve.
This rating specifies the non-repetitive peak current in one cycle of a 50-Hz sine wave, condition angle 180.
Therefore, this is only applied for an abnormal operation, which seldom occurs during the lifespan of the device.
We recommend that a device be used at a Tj of below 120℃ under the worst load and heat radiation conditions.
Thermal resistance between junction and ambient fluctuates depending on the device’s mounting condition. When
using a device, design a circuit board and a soldering land size to match the appropriate thermal resistance value.
Please refer to the Rectifiers databook for further information.
3.0
1.4
Unit: mm
1.4


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