Silicon Avalanche Diodes

288

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500 Watt Axial Leaded Transient Voltage Suppressors

®

Fig. 1 Peak Pulse Power Rating Curve

0.1s

1.0s

10s

100s

1.0ms

10ms

0.1

1

10

30

Non-repetitive Pulse

Waveform Shown in Fig. 3

TA=25˚C

td- Pulse Width (sec.)

Fig. 2 Pulse Derating Curve

TA- Ambient Temperature (˚C)

0

0

25

25

50

50

75

75

100

100

125 150 175 200

Fig. 3 Pulse Waveform

0

0

50

100

150

1.0

2.0

3.0

4.0

tr=10µsec

Peak Value

IPPM

Half Value IPPM

2

TJ=25˚C

Pulse Width(td) is defined

as the point where the peak

current decays to 50% of IPPM

10/1000µsec. Waveform

as defined by R.E.A

td

t-Time (ms)

Fig. 6- Maximum Non-Repetitive

1

10

100

200

10

100

Number of Cycles at 60Hz

Forward Surge Current

Uni-Directional Only

8.3 Single Half Sine-Wave

(JEDEC Method)

Undirectional Only

Fig. 4- Typical Junction Capacitance

6000

1000

100

10

5

100

500

VWM-Reverse Stand-Off Voltage (V)

VR=Rated

Stand-Off Voltage

TJ=25˚C

f=1MHZ

Vsig=50mVp-p

Uni-Directional

Bi-Directional

VR=

Fig. 5 Steady State Power

Derating Curve

T1- Lead Temperature (˚C)

0

0

25

1.0

50

2.0

75

3.0

100

4.0

125 150 175 200

L=0.375"(9.5mm)

Lead Lengths

1.6x1.6x.040

(40x40x1mm)

Copper Heat Sinks

P

P

P

Td

Td

Td

Half SINE

Exponential

Square

SA Series

RoHS