CUS05 datasheet(2/5 Pages) TOSHIBA

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CUS05

2009-11-11

Electrical Characteristics (Ta = 25°C)

Characteristics

Symbol

Test Condition

Min

Typ.

Max

Unit

VFM (1)

IFM = 0.1 A

⎯

0.25

⎯

VFM (2)

IFM = 0.7 A

⎯

0.33

0.37

Peak forward voltage

VFM (3)

IFM = 1.0 A

⎯

0.39

⎯

IRRM (1)

VRRM = 5 V

⎯

μA

Repetitive peak reverse current

IRRM (2)

VRRM = 20 V

⎯

0.2

1.0

Junction capacitance

VR = 10 V, f = 1.0 MHz

⎯

Device mounted on a ceramic board

(board size: 50 mm × 50 mm)

(soldering land: 2 mm × 2 mm)

(board thickness: 0.64 mm)

⎯

Thermal resistance

(junction to ambient)

Rth (j-a)

Device mounted on a glass-epoxy board

(board size: 50 mm × 50 mm)

(soldering land: 6 mm × 6 mm)

(board thickness: 1.6 mm)

⎯

150

°C/W

Thermal resistance (junction to lead)

Rth (j-ℓ)

Junction to lead of cathode side

⎯

°C/W

Marking

Abbreviation Code

Part No.

CUS05

Standard Soldering Pad

Handling Precaution

Schottky barrier diodes have reverse current characteristic compared to the other diodes.

There is a possibility SBD may cause thermal runaway when it is used under high temperature or high voltage.

This device is VF-IRRM trade-off type, lower VF higher IRRM; therefore, thermal runaway might occur when

voltage is applied. Please take forward and reverse loss into consideration during design.

The absolute maximum ratings of a semiconductor device are a set of ratings that must not be exceeded, even for a

moment. Do not exceed any of these ratings.

The following are the general derating methods that we recommend for designing a circuit using this device.

VRRM: Use this rating with reference to the above. VRRM has a temperature coefficient of 0.1%/°C. 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) and Tj be below 100°C. When using this device, take the margin into consideration by

using an allowable Tamax-IF(AV) curve.

IFSM:

This rating specifies the non-repetitive peak current. This is only applied for an abnormal operation,

which seldom occurs during the lifespan of the device.

Tj:

Derate this rating when using a device in order to ensure high reliability. We recommend that the

device be used at Tj of below 100°C.

Thermal resistance between junction and ambient fluctuates depending on the 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.

Refer to the Rectifiers databook for further information.

Unit: mm

2.0

1.1

0.5

0.8

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