Electrical specifications and ordering codes
Maximum ratings (T
A
= 85 °C)
Ordering code
Type
(untaped)
SIOV-
V
RMS
V
V
DC
V
i
max
(8/20 µs)
A
W
max
(2 ms)
J
P
max
W
B72220T2131K101 ETFV20K130E2 130 170 10000 100 1.0
B72220T2141K101 ETFV20K140E2 140 180 10000 110 1.0
B72220T2151K101 ETFV20K150E2 150 200 10000 120 1.0
B72220T2171K101 ETFV20K175E2 175 225 10000 135 1.0
B72220T2211K101 ETFV20K210E2 210 270 10000 160 1.0
B72220T2231K101 ETFV20K230E2 230 300 10000 180 1.0
B72220T2251K101 ETFV20K250E2 250 320 10000 195 1.0
B72220T2271K101 ETFV20K275E2 275 350 10000 215 1.0
B72220T2301K101 ETFV20K300E2 300 385 10000 250 1.0
B72220T2321K101 ETFV20K320E2 320 420 10000 273 1.0
B72220T2351K101 ETFV20K350E2 350 460 10000 273 1.0
B72220T2381K101 ETFV20K385E2 385 505 10000 273 1.0
B72220T2421K101 ETFV20K420E2 420 560 10000 273 1.0
Characteristics (T
A
= 25 °C)
Ordering code
Type
(untaped)
SIOV-
V
v
(1 mA)
V
∆V
v
(1 mA)
%
v
c,max
(i
c
)
V
i
c
A
C
typ
(1 kHz)
pF
B72220T2131K101 ETFV20K130E2 205 ±10 340 100 1340
B72220T2141K101 ETFV20K140E2 220 ±10 360 100 1240
B72220T2151K101 ETFV20K150E2 240 ±10 395 100 1160
B72220T2171K101 ETFV20K175E2 270 ±10 455 100 1000
B72220T2211K101 ETFV20K210E2 330 ±10 545 100 835
B72220T2231K101 ETFV20K230E2 360 ±10 595 100 760
B72220T2251K101 ETFV20K250E2 390 ±10 650 100 700
B72220T2271K101 ETFV20K275E2 430 ±10 710 100 630
B72220T2301K101 ETFV20K300E2 470 ±10 775 100 580
B72220T2321K101 ETFV20K320E2 510 ±10 840 100 540
B72220T2351K101 ETFV20K350E2 560 ±10 910 100 500
B72220T2381K101 ETFV20K385E2 620 ±10 1025 100 450
B72220T2421K101 ETFV20K420E2 680 ±10 1120 100 420
Housed varistors ETFV20
ThermoFuse varistors, ETFV20 series
Page 3 of 15Please read Cautions and warnings and
Important notes at the end of this document.
