3.0SMCJ78A datasheet(2/4 Pages) TSC

Part #	3.0SMCJ78A

Description	3000 Watts Surface Mount Transient Voltage Suppressor

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Manufacturer	TSC [Taiwan Semiconductor Company, Ltd]

Direct Link	http://www.taiwansemi.com

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RATINGS AND CHARACTERISTIC CURVES (3.0SMCJ SERIES)

FIG.4- MAXIMUM NON-REPETITIVE FORWARD

SURGE CURRENT

1

10

100

10

100

200

NUMBER OF CYCLES AT 60Hz

8.3ms Single Half Sine Wave

JEDEC Method

UNIDIRECTIONAL ONLY

FIG.1- PEAK PULSE POWER RATING CURVE

0.1

1

10

100

td. PULSE WIDTH, sec.

0.1 s

1.0 s

10 s

100 s

1.0ms

10ms

0.31X0.31" (8.0X8.0mm) COPPER PAD AREAS

NON-REPETITIVE

PULSE WAVEFORM

SHOWN in FIG. 3

T =25 C

A

0

FIG.3-

PULSE WAVEFORM

CLAMPING POWER

0

1.0

2.0

3.0

4.0

0

50

150

100

t, TIME, ms

tr=10 sec.

10/1000 sec. WAVEFORM

AS DEFINED BY R.E.A.

td

2

PEAK VALUE

lppm

HALF VALUE- lpp

PULSE WIDTH (td) is DEFINED

AS THE POINT WHERE THE PEAK

CURRENT DECAYS to 50% of lppm

FIG.5- TYPICAL JUNCTION CAPACITANCE

UNIDIRECTIONAL

V(BR), BREAKDOWN VOLTAGE. VOLTS

UNIDIRECTIONAL

BIDIRECTIONA

V=0

R

Tj = 25 C

f=1.0MHz

Vsig=50mVp-p

O

V -RATED

STAND-OFF

VOLTAGE

R

1

10

100

200

10

100

1000

10000

Version: A06

FIG.2- PULSE DERATING CURVE

0

25

50

75

100

125

150

175

200

100

75

50

25

0

TA, AMBIENT TEMPERATURE. C

O

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