Overcurrent Protection
Leaded Disks, Coated, 12 V
Applications
I
Overcurrent and short-circuit protection
B599*5
C 935 … C 995
b
3,5 max.
Features
I
Lead-free terminals
I
Manufacturer’s logo and type designation
I
I
I
I
I
stamped on in yellow
Low resistance
For rated currents of up to 2,1 A
High thermal stability
UL approval to UL 1434 (file number E69802)
VDE approval (license number 104843 E)
Dimensions (mm)
Type
C 935
C 945
C 955
C 965
C 975
C 985
C 995
b
max
22,0
17,5
13,5
11,0
9,0
6,5
4,0
5
35 min.
h
ød
TPT0647-V
Options
I
Leadless disks and leaded disks without
coating available on request
I
Thermistors with diameter
b
≤
11,0 mm
are also available on tape (to IEC 60286-2)
Delivery mode
I
Cardboard strips (standard)
I
Cardboard tape reeled or in AMMO pack on request
∅
d
0,6
0,6
0,6
0,6
0,6
0,6
0,5
h
max
25,5
21,0
17,0
14,5
12,5
10,0
7,5
General technical data
Max. operating voltage (T
A
= 60
°
C)
Rated voltage
Switching cycles (typ.)
Reference temperature (typ.)
Resistance tolerance
Operating temperature range (V = 0)
(V =
V
max
)
V
max
V
N
N
T
Ref
∆
R
N
T
op
T
op
20
12
100
160
±
25 %
– 40/+ 125
0/+ 60
VDC or VAC
VDC or VAC
°
C
°
C
°
C
Electrical specifications and ordering codes
Type
I
N
mA
2100
1500
950
700
550
300
150
I
S
mA
4150
3050
1900
1450
1100
600
300
I
Smax
(V=V
max
)
A
10,0
8,0
5,5
4,3
3,0
1,0
0,7
I
r
(typ.)
(V=V
max
)
mA
240
170
120
105
85
65
40
I
r
(typ.)
(V=V
N
)
mA
380
270
190
165
135
100
65
R
N
R
min
Ordering code
C 935
C 945
C 955
C 965
C 975
C 985
C 995
Ω
0,3
0,45
0,8
1,2
1,8
4,6
13
Ω
0,2
0,3
0,5
0,7
1,1
2,7
7,8
B59935C0160A070
B59945C0160A070
B59955C0160A070
B59965C0160A070
B59975C0160A070
B59985C0160A070
B59995C0160A070
51
10/02
Overcurrent Protection
Leaded Disks, Coated, 12 V
Reliability data
Test
Switching test
at room temperature
Dry heat at upper
category temperature
Life test at
V
max
/T
op
Storage in damp heat
Standard
IEC 60738-1
Test conditions
I
Smax
V
max
Number of cycles: 100
B599*5
C 935 … C 995
|
∆
R
25
/R
25
|
< 25%
IEC 60738-1
Storage at upper category temperature < 25%
for
t
: 1000 h
Storage at
V
max
/T
op
for
t
: 1000 h
Temperature of air: 40
°
C
Relative humidity of air: 93%
Duration: 56 days
T
=
T
LCT
,
T
=
T
UCT
Number of cycles: 5
t
: 30 min
f
= 10–55 Hz
h = 0,75 mm (respectively 10 g)
t
: 3 · 2 h
Pulse shape: half-sine
a
: = 50 g
Pulse duration: 1 ms; 6 · 3 pulses
Dry heat:
T
=
T
UCT
t
: 16 h
Damp heat first cycle
Cold:
T
=
T
LCT
t
: 2 h
Damp heat 5 cycles
< 25%
< 10%
IEC 60738-1
IEC 60068-2-3
Rapid change
of temperature in air
Vibration
IEC 60068-2-14,
Test
N
a
IEC 60068-2-6,
Test
F
C
IEC 60068-2-27
< 10%
< 5%
Bump
< 5%
Climatic sequence
IEC 60068-2-30
< 10%
52
10/02
Overcurrent Protection
Leaded Disks, Coated, 12 V
B599*5
C 935 … C 995
Characteristics (typical)
PTC resistance
R
PTC
versus
PTC temperature
T
PTC
(measured at low signal voltage)
10
4
R
PTC
TPT0706-Z
PTC current
I
PTC
versus PTC voltage
V
PTC
(measured at 25
°
C in still air)
5
mA
TPT0708-G
Ω
I
PTC
10
3
10
3
10
2
5
10
1
B59935C0160A070
B59945C0160A070
B59955C0160A070
10
2
5
10
0
B59935C0160A070
B59945C0160A070
B59955C0160A070
10
_
1
50
_
0
50
100 150 200
˚C 300
T
PTC
0,1
1
10
V 100
V
PTC
Switching time
t
S
versus switching current
I
S
(measured at 25
°
C in still air)
10
3
t
S
s
TPT0707-8
Rated current
I
N
versus ambient temperature
T
A
(measured in still air)
I
N,
T
A
2,0
TPT0727-M
I
N, 25 ˚C
1,6
1,4
B59935C0160A070
B59945C0160A070
B59955C0160A070
10
2
1,2
1,0
0,8
10
1
10
0
0,6
0,4
0,2
10
_
1
0
8
16
24
32
40 A 48
I
S
0
_
20 0
20 40 60 80 100 120 ˚C 160
T
A
53
10/02
Overcurrent Protection
Leaded Disks, Coated, 12 V
B599*5
C 935 … C 995
Characteristics (typical)
PTC resistance
R
PTC
versus
PTC temperature
T
PTC
(measured at low signal voltage)
10
6
R
PTC
TPT0712-9
PTC current
I
PTC
versus PTC voltage
V
PTC
(measured at 25
°
C in still air)
10
3
mA
TPT0714-Q
Ω
5
I
PTC
10
10
4
10
3
B59965C0160A070
B59975C0160A070
B59985C0160A070
B59995C0160A070
10
2
10
2
10
1
10
_
0
50
B59965C0160A070
B59975C0160A070
B59985C0160A070
B59995C0160A070
0
50
100 150 200
˚C 300
T
PTC
10
1
0,1
1
10
V 100
V
PTC
Switching time
t
S
versus switching current
I
S
(measured at 25
°
C in still air)
10
3
t
S
s
TPT0713-H
Rated current
I
N
versus ambient temperature
T
A
(measured in still air)
I
N,
T
A
2,0
TPT0727-M
I
N, 25 ˚C
1,6
1,4
B59965C0160A070
B59975C0160A070
B59985C0160A070
B59995C0160A070
10
2
1,2
1,0
0,8
10
1
10
0
0,6
0,4
0,2
10
_
1
0
2
4
6
A 8
I
S
0
_
20 0
20 40 60 80 100 120 ˚C 160
T
A
54
10/02
Herausgegeben von EPCOS AG
Unternehmenskommunikation, Postfach 80 17 09, 81617 München, DEUTSCHLAND
++49 89 636 09, FAX (0 89) 636-2 26 89
(
EPCOS AG 2002. Vervielfältigung, Veröffentlichung, Verbreitung und Verwertung dieser Broschüre und ihres Inhalts ohne aus-
drückliche Genehmigung der EPCOS AG nicht gestattet.
Bestellungen unterliegen den vom ZVEI empfohlenen Allgemeinen Lieferbedingungen für Erzeugnisse und Leistungen der Elek-
troindustrie, soweit nichts anderes vereinbart wird.
Diese Broschüre ersetzt die vorige Ausgabe.
Fragen über Technik, Preise und Liefermöglichkeiten richten Sie bitte an den Ihnen nächstgelegenen Vertrieb der EPCOS AG
oder an unsere Vertriebsgesellschaften im Ausland. Bauelemente können aufgrund technischer Erfordernisse Gefahrstoffe ent-
halten. Auskünfte darüber bitten wir unter Angabe des betreffenden Typs ebenfalls über die zuständige Vertriebsgesellschaft ein-
zuholen.
Published by EPCOS AG
Corporate Communications, P.O. Box 80 17 09, 81617 Munich, GERMANY
++49 89 636 09, FAX (0 89) 636-2 26 89
EPCOS AG 2002. Reproduction, publication and dissemination of this brochure and the information contained therein without
EPCOS’ prior express consent is prohibited.
Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics
Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers’ Association), unless otherwise agreed.
This brochure replaces the previous edition.
For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or the international Representa-
tives.
Due to technical requirements components may contain dangerous substances. For information on the type in question please
also contact one of our Sales Offices.
(
Electronics Design Contest
京公网安备 11010802033920号
EEWORLD
