P4SMA12A_14 データシートの表示（PDF） - Littelfuse, Inc

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P4SMA12A_14

TVS Diodes Surface Mount – 400W

Littelfuse, Inc 

TVS Diodes

Surface Mount – 400W > P4SMA series

I-V Curve Characteristics

Uni-directional

Bi-directional

Ipp

Vc VBR VR

IR VF

V

IT

Vc VBR VR

IT

IR

IR

IT

V

VR VBR Vc

Ipp

Ipp

P Peak Pulse Power Dissipation -- Max power dissipation

PPM

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

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

BR

T

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

IR Reverse Leakage Current -- Current measured at VR

VF Forward Voltage Drop for Uni-directional

Ratings and Characteristic Curves (TA=25°C unless otherwise noted)

Figure 1 - TVS Transients Clamping Waveform

Figure 2 - Peak Pulse Power Rating Curve

Voltage Transients

10

Voltage Across TVS

Current Through TVS

1

Time

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

Copper Pad Area

0.1

0.000001

0.00001

0.0001

td-Pulse Width (sec.)

0.001

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P4SMA Series

28

©2014 Littelfuse, Inc.

Specifications are subject to change without notice.

Revised: 10/09/14

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