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Transient voltage suppression diodes, Surface mount – 3000w > smdj series, I-v curve characteristics – Littelfuse SMDJ Series User Manual

Page 3: Figure 2 - peak pulse power rating

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Transient Voltage Suppression Diodes

© 2014 Littelfuse, Inc.

Specifications are subject to change without notice.
Revised: 01/24/14

Surface Mount – 3000W > SMDJ series

I-V Curve Characteristics

Voltage Transients

Time

Voltage Across TVS

Current Through TVS

Voltage or Current

Figure 1 - TVS Transients Clamping Waveform

Ratings and Characteristic Curves

(T

A

=25°C unless otherwise noted)

Figure 2 - Peak Pulse Power Rating

0.1

1

10

100

1000

0.001

0.01

0.1

1

P

PPM

-Peak Pulse Power (KW

)

10

0.31x0.31" (8.0x8.0mm)
Copper Pad Area

t

d

-Pulse Width (ms)

Vc V

BR

V

R

I

R

I

T

I

pp

V

Uni-directional

V

F

Vc V

BR

V

R

I

R

I

T

I

pp

V

Vc

V

BR

V

R

I

pp

I

R

I

T

Bi-directional

P

PPM

Peak Pulse Power Dissipation -- Max power dissipation

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

T

)

V

C

Clamping Voltage -- Peak voltage measured across the suppressor 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

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