Datasheet SMAJ (Littelfuse) - 3

TVS Diodes
Surface Mount – 400W > SMAJ series
I-V Curve Characteristics
Uni-directional Bi-directional Ipp IT Vc V I BR VR Vc VBR VR R V I V R VF IR VRVBR Vc IT IT I I pp pp
P Peak Pulse Power Dissipation
-- Max power dissipation
PPM V Stand-off Voltage
-- Maximum voltage that can be applied to the TVS without operation
R V Breakdown Voltage
-- Maximum voltage that flows though the TVS at a specified test current (I )
BR
T
V Clamping Voltage
-- Peak voltage measured across the TVS at a specified Ippm (peak impulse current)
C I Reverse Leakage Current
-- Current measured at V
R
R
V Forward Voltage Drop for Uni-directional F Ratings and Characteristic Curves (T =25°C unless otherwise noted) A Figure 1 - TVS Transients Clamping Waveform Figure 2 - Peak Pulse Power Rating Curve Voltage Transients
100 ) TJ initial = Tamb
Voltage Across TVS
10 stacked-die, 600W at 10/1000µs, 25°C
Current Through TVS
1 Single die,400W at 10/1000µs, 25°C Voltage or Current -Peak Pulse Power (kW P PPM 0.10.001 0.01 0.1 1 10 t -Pulse Width (ms) d
Time
© 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: BA.10/21/20