TVS Diodes

Surface Mount – 400W > SMF4L Series

©2016 Littelfuse, Inc.

Specifications are subject to change without notice.

Revised: 08/02/16

0

0.4

0.5

0.6

0.7

0.8

0.9

-551075140

Temperature (ºC)

Figure 5 - Forward Voltage

Figure 3 - Peak Pulse Power Derating Curve

0

0

50

100

150

1.0

2.0

3.0

4.0

tr=10µsec

Peak Value

IPPM

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)

Half Value

IPPM

( )

0

20

40

60

80

100

0255075

100

125

175

150

T

1

10

100

1000

10000

110100

VBR -Reverse Breakdown Voltage (V)

Uni-directional V=0v

Uni-directional V=

V

R

Figure 6 - Typical Junction Capacitance

0.01

0.1

1

10

00.5

11.5

22.5

33.5

4

VF-Peak Forward Voltage(V)

Figure 7 - Peak Forward Voltage Drop vs. Peak Forward

Current

0

5

10

15

20

25

30

35

110100

Number of Cycles at 60 Hz

Figure 8 - Maximum Non-Repetitive Forward Surge

Current Uni-Directional Only