CMH08A Datasheet, PDF (2/5 Pages) Toshiba Semiconductor – Switching Mode Power Supply Applications

Marking
Type code
H8
Product No.
CMH08A
Standard Soldering Pad
Unit: mm
CMH08A
1.4
3.0
1.4
Handling Precaution
The absolute maximum ratings mean the absolute maximum ratings, which are rated values and must not be exceeded
during operation, even for an instant. The followings are the general derating method 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 (0.1%/℃). Please consider this temperature coefficient when you design 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).
Please do the sufficient heat design. If you can’t design a circuit with excellent heat radiation, please set a 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 device’s lifespan.
We recommend that a device be used Tj of below 120℃ under the worst load and heat radiation conditions.
Thermal resistance between junction and ambient fluctuates depending on device’s mounting condition. When using a
device, please design a circuit board and a soldering land size to match the appropriate thermal resistance value.
Please refer to Rectifier databook for further information.
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2006-11-08