Littelfuse SACB Series - Manual (Page 2)

Transient Voltage Suppression Diodes
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/20/14
Surface Mount – 500W > SACB series
Electrical Characteristics
(T
A
=25°C unless otherwise noted)
Part
Number
Marking
Code
Stand-Off
Voltage
(Note1) V
R
(V)
Minimum
Breakdown
Voltage at
I
T
=1.0MA
V
BR
(V)
Maximum
Reverse
Leakage
at V
R
I
R
A)
Maximum
Clamping
Voltage at
I
PP
=5.0A
V
C
(V)
Maximum
Peak
Pulse
Current
per (Fig.3)
I
PP
(A)
Maximum
Junction
Capacitance
at
0 Volts (pF)
Working
Inverse
Blocking
Voltage
V
WIB
(V)
Inverse
Blocking
Leakage
Current at
V
WIB
@ I
IB
(mA)
Peak Inverse
Blocking
Voltage V
PIB
(V)
UL
Recognition
SACB5.0 SKE 5.0 7.60 300 10.0 44.0 45 75 1.0 100 X
SACB6.0 SKG 6.0 7.90 300 11.2 41.0 45 75 1.0 100 X
SACB7.0 SKM 7.0 8.33 300 12.6 38.0 45 75 1.0 100 X
SACB8.0 SKR 8.0 8.89 100 13.4 36.0 45 75 1.0 100 X
SACB8.5 SKT 8.5 9.44 50 14.0 34.0 45 75 1.0 100 X
SACB10 SKX 10.0 11.10 5 16.3 29.0 45 75 1.0 100 X
SACB12 SLE 12.0 13.30 5 19.0 25.0 45 75 1.0 100 X
SACB15 SLM 15.0 16.70 5 23.6 20.0 45 75 1.0 100 X
SACB18 SLT 18.0 20.00 5 28.8 15.0 45 75 1.0 100 X
SACB22 SLX 22.0 24.40 5 35.4 14.0 45 75 1.0 100 X
SACB26 SME 26.0 28.90 5 42.3 11.1 45 75 1.0 100 X
SACB30 SMK 30.0 33.30 5 48.6 10.0 45 75 1.0 100 X
SACB36 SMP 36.0 40.00 5 60.0 8.6 45 75 1.0 100 X
SACB45 SMV 45.0 50.00 5 77.0 6.8 45 150 1.0 200 X
SACB50 SMZ 50.0 55.50 5 88.0 5.8 45 150 1.0 200 X
Ratings and Characteristic Curves
(T
A
=25°C unless otherwise noted
Low Capacitance
Application Note: Device must be used with two
units in parallel, opposite in polarity as shown in
circuit for AC signal line protection.
Figure 4 - AC Line Protection Application
0.1
1
10
100
0.1µs 1.0µs 10µs 100µs 1.0ms 10ms
I PPM
- Peak
Pulse Power (kW)
t d - Pulse Width (sec.)
Non-repetitive Pulse
Waveform shown in Fig. 3
T A =25°C
30
Current Waveforms
Square P PK
td=7tp
td
td P PK
Half Sine
Impulse
td
P PK ".5"
Exponential
Decay
SACB: Revised Figure 1 - Peak Pulse Power Rating Curve
Ratings and Characteristic Curves
(T
A
= 25°C unless otherwise noted)
I PPM
- P
eak P
ulse Cur
rent, %
I RSM
0
0
50
100
150
1.0 2.0 3.0 4.0
tr=10µsec
Peak Value
IPPM
IPPM
2
TJ=25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of IPPM
10/1000µsec. Waveform
as defined by R.E.A
td
t-Time (ms)
Half Value
IPPM
( )
0
25
50
75
100
0 25 50 75 100 125 150
Percentage of Rated Power (%)
Average Power
Peak Power
(Single Pulse)
T
L
- Lead Temperature (ºC)
Figure 1 - Peak Pulse Power Rating Curve Figure 2 - Pulse Derating Curve
Figure 3 - Pulse Waveform