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CERAMIC PTC THERMISTORS : OVERCURRENT PROTECTORS

PROTECTORS
PO Series PTC Thermistors
OC Series Over-Current Protector
PTC thermistors are serially connected in a load circuit to protect motors, transformers, delicate electronic circuits, etc. from over-current/over-temperature conditions. The thermistors automatically returns to their normal protective function
after fault removal. As opposed to plastic thermistors which degrades after several active cycle, our ceramic thermistors consistently retains the original state of properties after frequent On-Off cycles.

PCT over-current
protector


1=4.5-19.5mm
2-5.0-20.0mm
T1=0.8-3.0mm
T2=2.0-5.0mm



PT Series PTC Thermistors
TP Series MDF Protector
PTC thermistors are used in the MAIN DISTRIBUTION FRAME to protect the TELEPHONE EXCHANGER against hyper-currents.

The PTC reacts rapidly to a fault condition and returns to ready-state automatically. Our ceramic thermistors are designed to replace the traditional melting fuse and plastic thermistors.





 

CERAMIC PTC THERMISTORS : OVERCURRENT PROTECTORS


MODEL NOMENCLATURE  


OC82R9MH1
OC:
Over-current protection
8:
Curie Temp=80C
2R9:
R25C=2.9
M:
20?
H:
Encapsulated
1:
Version 1
PTBB06710RM17
PT:
MDF Protection thermistors
B:
Curie Temp=110C
B:
Shape=disk
067:
Diameter=6.7mm
10R:
R25C=10
M:
20?
17:
Thickness=1.7mm



STANDARD MODELS:OVER-CURRENT PROTECTOR
Model
TC
(C)
R25C
(?)
VMAX
(Vrms)
IMAX
(A)
IR
(mA)
IS
(mA)
DIM
(mm)
TOP
(C)
OC82R9MH1
805
2.920
24
2.0
180
620
13.0x1.5
-10 to 60
OC84R7MH1
4.720
24
2.0
110
430
13.0x1.5
-10 to 60
OC810RMH1
10.020
24
2.0
70
290
8.0x1.5
-10 to 60
OC815RMH1
15.020
140
2.0
60
220
8.0x2.0
-10 to 60
OC840RMH1
40.020
250
2.0
50
200
8.0x2.0
-10 to 40
OC8500MH1
50020
500
2.0
10
40
4.5x3.0
-10 to 40
OC81K0MH1
100020
500
1.0
8
30
4.5x3.0
-10 to 40
OC81K5MH1
150020
500
1.0
7
20
4.5x3.0
-10 to 40
OCA30RMH1
1005
30.020
250
2.0
80
140
6.5x2.0
-10 to 40
OCC1R5MH1
1205
1.520
140
2.0
510
1000
19.0x2.5
-10 to 60
OCC6R0MH1
6.020
140
2.0
350
550
19.0x2.2
-10 to 60
OCC10RMH1
10.020
140
2.0
250
700
12.0x2.5
-10 to 40
OCC20RMH1
20.020
140
2.0
150
360
8.0x2.5
-10 to 40
+
POIB1800R5M08
1805
0.5230
16
5.0
1000
2000
18.0x0.8
-10 to 40
+
(PTC thermistor only)



STANDARD MODELS:TELEPHONE EXCHANGER PROTECTION THERMISTOR
Model
Dimension
(mm)
R25C
()

IR
(mA)

Is-Time Characteristics
(@25∂2C)
+
VMAX
+
  (V)
PTBB06710RM17
6.7⊥1.7
10.020?
150(@32C;
=3hr
4A-150mA:<0.5s; 1A-150mA<2.0s
250mA-150mA:<60s;  
230
PTBB05518RM15
5.5⊥1.5
18.020?
110(@40C;
=1hr
3A-0.5A:<0.2s; 2A-0.5A<0.5s
1A-0.5A:1.5s; 0.75A-0.1A<5s
250
PTBB08018RM22
8.0⊥2.2
18.020?
110(@40?;
=1hr
3A-0.5A:<0.2s; 2A-0.5A<0.5s
1A-0.5A:<1.2s; 0.75A-0.1A<5s
250
PT8B07025RM20
7.0⊥2.0
2520?
70(@45?;
=1hr
1A-0.5A:<0.8s
250
PTAB070100M20
7.0⊥2.0
10020?
50(@45?;
=1hr
1A-0.5A:<0.5s
250
(Maximum allowable current @VMAXIS 2A)



When placing an order, please provide specification parameters as indicated in the standard model list.

Note 1:The table provides standard PTC components currently in production.

Note 2:For element of non-standard dimensions, please send specific inquiries to our sales department.

Note 3:Unit price for the standard unit is set according to the purchase volume. Please ask for direct quotations. Non-standard unit quotations are usually provided after the fabrication of the prototype.


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