Overcurrent Protection
B597**
Leaded Disks, Uncoated, 380 V to 1000 V
B 750 … B 774
Characteristics (typical)
PTC resistance R
versus
PTC current I
versus PTC voltage V
PTC PTC
PTC
PTC temperature T
(measured at 25 °C in still air)
PTC
(measured at low signal voltage)
TPT0741-M
109
TPT0742-V
3
Ω
mA
RPTC
IPTC
102
107
106
105
104
103
101
B59770B0120A070
B59771B0120A070
B59772B0120A070
B59770B0120A070
B59771B0120A070
B59772B0120A070
102
101
100
0,1
_50
0
50 100 150 200
˚C 300
TPTC
1
10
100
V 1000
VPTC
Switching time t versus switching current I
Rated current I versus ambient temperature T
S
S
N
A
(measured at 25 °C in still air)
(measured in still air)
TPT0731-F
TPT0743-4
103
2,0
I
N, TA
s
IN, 25 ˚C
tS
1,6
1,4
1,2
1,0
0,8
0,6
0,4
0,2
0
102
101
B59770B0120A070
B59771B0120A070
B59772B0120A070
100
_1
10
_20
0
20 40 60 80 100 120 ˚C 160
0
0,4
0,8
1,2
1,6
2
A 2,4
IS
TA
89 10/02
EPCOS [ EPCOS ]
