Datasheet
Electrical specifications and ordering codes
Maximum ratings (T
A
= 85 °C)
Type Ordering code
V
RMS
V
V
DC
V
i
max
(8/20 µs)
1 time
A
I
n
1)
(8/20 µs)
15 times
A
W
max
(2 ms)
mJ
P
max
mW
CU3225K230G2 B72650M0231K072 230 300 400 150 7200 100
CU4032K230G2 B72660M0231K072 230 300 1200 500 17000 250
CU3225K250G2 B72650M0251K072 250 320 400 150 8200 100
CU4032K250G2 B72660M0251K072 250 320 1200 500 19000 250
CU3225K275G2 B72650M0271K072 275 350 400 150 8600 100
CU4032K275G2 B72660M0271K072 275 350 1200 500 21000 250
CU3225K300G2 B72650M0301K072 300 385 400 150 9600 100
CU4032K300G2 B72660M0301K072 300 385 1200 500 23000 250
1)
Note: Nominal discharge current I
n
according to UL 1449, 4
th
edition.
Characteristics (T
A
= 25 °C)
Type
V
V
(1 mA)
V
∆V
V
%
v
c,max
V
I
c
(8/20 µs)
A
C
typ
(1 kHz, 1 V)
pF
CU3225K230G2 360 ±10 595 5.0 60
CU4032K230G2 360 ±10 595 10.0 115
CU3225K250G2 390 ±10 650 5.0 55
CU4032K250G2 390 ±10 650 10.0 105
CU3225K275G2 430 ±10 710 5.0 50
CU4032K275G2 430 ±10 710 10.0 95
CU3225K300G2 470 ±10 775 5.0 45
CU4032K300G2 470 ±10 775 10.0 90
SMD varistors (CU types) B726*
Standard series
Page 7 of 23Please read Cautions and warnings and
Important notes at the end of this document.