TVS Diodes

Surface Mount – 400W > SMF4L Series

©2016 Littelfuse, Inc.

Specifications are subject to change without notice.

Revised: 08/02/16

Voltage Transients

Time

Voltage Across TVS

Current Through TVS

Figure 1 - TVS Transients Clamping Waveform

Figure 2 - Peak Pulse Power Rating Curve

I-V Curve Characteristics

P

V

R

Stand-off Voltage -- Maximum voltage that can be applied to the TVS without operation

V

BR

Breakdown Voltage -- Maximum voltage that flows though the TVS at a specified test current (I

V

C

Clamping Voltage -- Peak voltage measured across the TVS at a specified Ippm (peak impulse current)

I

R

Reverse Leakage Current -- Current measured at V

R

V

F

Forward Voltage Drop for Uni-directional

V

Uni-directional

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0.1

1

10

0.0000010.000010.0001

0.001

t

0.2x0.2" (5.0x5.0mm)

Copper Pad Area