Transient voltage suppression diodes, Axial leaded – 500w > sa series, I-v curve characteristics – Littelfuse SA Series User Manual
Page 3: Figure 2 - peak pulse power rating
Transient Voltage Suppression Diodes
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
Axial Leaded – 500W > SA 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
P
PPM
- Peak Pulse Power (KW)
01.µs
1.0µs
10µs
100µs
1.0ms
10ms
0.1
1
10
30
Non-repetitive Pulse
Waveform Shown in Fig. 3
TA=25ûC
td- Pulse Width (sec.)
P
P
P
Td
Td
Td
Half SINE
Exponential
Square
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
continues on next page.