Overcurrent Protection
Leaded Disks, Uncoated, 380 V to 1000 V
Applications
I
Overcurrent and short-circuit protection
B597**
B 750 … B 774
Features
I
Lead-free terminals
I
Manufacturer’s logo, date code and
type designation stamped on in black
I
UL approval to UL 1434 with
V
max
= 420 V and
V
N
= 380 V (file number E69802), except B 758
Delivery mode
I
Cardboard strips (standard)
I
Cardboard tape reeled or in AMMO pack on request
Dimensions (mm)
Type
B 75*
B 77*
b
max
12,5
8,5
h
max
16,5
12,1
s
max
7,0
7,0
General technical data
Switching cycles (typ.)
Operating temperature range (V = 0)
(V =
V
max
)
N
T
op
T
op
100
– 40/+ 125
0/+ 60
°
C
°
C
Electrical specifications and ordering codes
I
Smax
t
S
I
r
(typ.)
R
N
(V=V
max
) (V
max
,
I
Smax
) (V=V
max
)
mA
mA
Ω
A
s
mA
V
max
= 420 V,
V
N
= 380 V,
T
Ref
= 120
°
C (typ.),
∆
R
N
=
±
25 %
B 750 123 245 2,0
<6
4,0
25
B 751
87 173 2,0
<4
3,5
50
B 752
69 137 2,0
<4
3,5
80
B 770
64 127 1,4
<4
3,5
70
B 753
56 112 2,0
<3
3,0
120
B 754
50 100 2,0
<3
3,0
150
B 771
49
97 1,4
<3
2,5
120
B 772
43
86 1,4
<3
2,5
150
V
max
= 550 V,
V
N
= 500 V,
T
Ref
= 115
°
C (typ.),
∆
R
N
=
±
25 %
B 755
28
55 1,4
<3
2,0
500
V
max
= 550 V,
V
N
= 500 V,
T
Ref
= 120
°
C (typ.),
∆
R
N
=
±
25 %
B 773
24
48 1,0
<3
2,0
500
V
max
= 550 V,
V
N
= 500 V,
T
Ref
= 115
°
C (typ.),
∆
R
N
=
±
25 %
B 774
16
32 1,0
<2
1,5
1100
V
max
= 1000 V,
V
N
= 1000 V,
T
Ref
= 110
°
C (typ.),
∆
R
N
=
±
33 %
B 758
8
17 0,5
<3
3,0
7500
Type
I
N
I
S
R
min
Ordering code
Ω
13
26
42
45
63
68
76
96
230
320
700
3380
B59750B0120A070
B59751B0120A070
B59752B0120A070
B59770B0120A070
B59753B0120A070
B59754B0120A070
B59771B0120A070
B59772B0120A070
B59755B0115A070
B59773B0120A070
B59774B0115A070
B59758B0110A070
86
10/02
Overcurrent Protection
Leaded Disks, Uncoated, 380 V to 1000 V
B597**
B 750 … B 774
Characteristics (typical)
PTC resistance
R
PTC
versus
PTC temperature
T
PTC
(measured at low signal voltage)
10
9
R
PTC
TPT0735-D
PTC current
I
PTC
versus PTC voltage
V
PTC
(measured at 25
°
C in still air)
5
mA
TPT0737-U
Ω
B59750B0120A070
B59751B0120A070
B59752B0120A070
B59753B0120A070
I
PTC
10
7
10
6
10
5
10
4
10
3
10
2
10
_
1
50
10
2
5
B59750B0120A070
B59751B0120A070
B59752B0120A070
B59753B0120A070
10
1
5
0
50
100
150
200 ˚C 250
T
PTC
10
0
1
10
100
V 1000
V
PTC
Switching time
t
S
versus switching current
I
S
(measured at 25
°
C in still air)
10
3
t
S
s
TPT0736-L
Rated current
I
N
versus ambient temperature
T
A
(measured in still air)
I
N,
T
A
2,0
TPT0731-F
I
N, 25 ˚C
1,6
10
2
1,4
B59750B0120A070
B59751B0120A070
B59752B0120A070
B59753B0120A070
1,2
1,0
0,8
0,6
10
1
10
0
0,4
0,2
10
_
1
0
1
2
3
I
S
A 4
0
_
20 0
20 40 60 80 100 120 ˚C 160
T
A
87
10/02
Overcurrent Protection
Leaded Disks, Uncoated, 380 V to 1000 V
B597**
B 750 … B 774
Characteristics (typical)
PTC resistance
R
PTC
versus
PTC temperature
T
PTC
(measured at low signal voltage)
10
10
R
PTC
TPT0738-3
PTC current
I
PTC
versus PTC voltage
V
PTC
(measured at 25
°
C in still air)
10
2
mA
5
TPT0739-B
Ω
I
PTC
8
10
B59754B0120A070
B59755B0115A070
B59758B0110A070
10
7
10
1
10
6
10
5
10
4
10
3
10
_
2
50
B59754B0120A070
B59755B0115A070
B59758B0110A070
5
10
0
5
0
50
100
150
200 ˚C 250
T
PTC
1
10
100
1000
V 10000
V
PTC
Switching time
t
S
versus switching current
I
S
(measured at 25
°
C in still air)
10
3
t
S
s
TPT0740-E
Rated current
I
N
versus ambient temperature
T
A
(measured in still air)
I
N,
T
A
2,0
TPT0731-F
I
N, 25 ˚C
1,6
1,4
B59754B0120A070
B59755B0115A070
B59758B0110A070
10
2
1,2
1,0
0,8
10
1
10
0
0,6
0,4
0,2
10
_
1
0
0,4
0,8
1,2
1,4
2 A 2,4
I
S
0
_
20 0
20 40 60 80 100 120 ˚C 160
T
A
88
10/02
Overcurrent Protection
Leaded Disks, Uncoated, 380 V to 1000 V
B597**
B 750 … B 774
Characteristics (typical)
PTC resistance
R
PTC
versus
PTC temperature
T
PTC
(measured at low signal voltage)
10
9
R
PTC
TPT0741-M
PTC current
I
PTC
versus PTC voltage
V
PTC
(measured at 25
°
C in still air)
3
mA
10
2
TPT0742-V
Ω
I
PTC
7
10
10
6
10
5
10
4
10
3
10
2
10
_
1
50
B59770B0120A070
B59771B0120A070
B59772B0120A070
0
50
100 150 200
˚C 300
T
PTC
10
0
0,1
1
10
1
B59770B0120A070
B59771B0120A070
B59772B0120A070
10
100
V 1000
V
PTC
Switching time
t
S
versus switching current
I
S
(measured at 25
°
C in still air)
10
3
t
S
s
TPT0743-4
Rated current
I
N
versus ambient temperature
T
A
(measured in still air)
I
N,
T
A
2,0
TPT0731-F
I
N, 25 ˚C
1,6
10
2
1,4
1,2
10
1
B59770B0120A070
B59771B0120A070
B59772B0120A070
10
0
1,0
0,8
0,6
0,4
0,2
10
_
1
0
0,4
0,8
1,2
1,6
2 A 2,4
I
S
0
_
20 0
20 40 60 80 100 120 ˚C 160
T
A
89
10/02
Overcurrent Protection
Leaded Disks, Uncoated, 380 V to 1000 V
B597**
B 750 … B 774
Characteristics (typical)
PTC resistance
R
PTC
versus
PTC temperature
T
PTC
(measured at low signal voltage)
10
10
R
PTC
TPT0744-C
PTC current
I
PTC
versus PTC voltage
V
PTC
(measured at 25
°
C in still air)
10
2
mA
5
B59773B0120A070
B59774B0115A070
TPT0745-K
Ω
I
PTC
B59773B0120A070
B59774B0115A070
10
8
10
7
10
1
10
6
5
10
5
10
4
10
3
10
_
2
50
10
0
5
0
50
100
150
200 ˚C 250
T
PTC
1
10
100
1000
V 10000
V
PTC
Switching time
t
S
versus switching current
I
S
(measured at 25
°
C in still air)
10
3
t
S
s
TPT0746-T
Rated current
I
N
versus ambient temperature
T
A
(measured in still air)
I
N,
T
A
2,0
TPT0731-F
I
N, 25 ˚C
1,6
1,4
B59773B0120A070
B59774B0115A070
10
2
1,2
1,0
0,8
10
1
10
0
0,6
0,4
0,2
10
_
1
0
0,2 0,4 0,6 0,8 1,0 1,2
A 1,6
I
S
0
_
20 0
20 40 60 80 100 120 ˚C 160
T
A
90
10/02
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