mordashka
Magnetics Epcos (Siemens Matsushita Components), Germany TDK Ferroxcube
North West Laboratory

Engineering Center SZL and LEPCOS
— General representative of Epcos AG by ferrite in the CIS
— Official distributor and general representative for ferrites of
    TDK Electronics Europe Gmbh in the CIS
— Authorized distributor of Magnetics in Russia, CIS and Baltic countries
— Exclusive distributor of USM in Russia and CIS countries
— Official Distributor Temex Ceramics in Russia and CIS
 
Products » Epcos and TDK protection devices » PTC thermistors »

PTC thermistors

PTC термисторы PTC thermistors (with positive temperature coefficient) represent the ceramic components whose electrical resistance rapidly increases when a certain temperature is exceeded. In such a case the protection from overcurrent is provided. After failure recovery the resistance of PTC thermistors decreases, and the component recovers safety features.

Such elements are mianly produced on the base of ceramics (BaTiO3), a dielectric with electrical resistance at 10 10…10 12 Оhm·sm. When introducing additives of rare earth elements to the (BaTiO3 composition one can decrease electrical resistance up to 10…10² Оhm·sm, corresponding semiconductor elements. The possibility for searching of thermistors with determined characteristics allows to use them as protection elements in modern electronic equipment.

The main fields of PTC thermistors application:

  • electronic ballasts
  • Protection from overcurrent
  • IT systems and electronic equipment
  • DC/DC converters
  • аutomobile electronucs
  • hoequipment for welding
  • refrigerating unit
  • measuring and temperature control systems
  • industrial electronics

During several years Epcos has been one of the world leaders in the field of designing, development and manufacturing of electronuc components, particularly, PTC thermistors. The company produces a wide range of PTC thermistors with different electrical characteristics and sizes, that allows to find a technical solution in order to provide a protection of the equipment.

When choosing the component it is necessary to take into account following features of PTC thermistors:

  • RR - nominal resistanse at T= 25°C, Ohm
  • IR - nominal current, А
  • ΔRТ/RR - Tolerance of R25
  • TR -nominal temperature, К
  • α - Temperature coeffiicient, %

PTC thermistors series

PTC thermistors for overcurrent protection

PTCDuring operating of power equipment the danger of overcurrent and short circuits. In order to provide the protection from high current and voltage values Epcos has produced the special series of PTC thermistors,characterising by low resistance at ambient conditions. The resistance of thermistiors strongly depends on ambient temperature. When current flowing the temperature grows, and the thermistor sharply increases resistanse providing the protection from a short circuit.
Disk thermistors
Type  Inom, А  Rnom, Ohm Drawing  wmax, mm  hmax, mm  thmax, mm ordering code Detailed documentation
VR = 12V DC/В AC, Vmax = 20 В DC/В AC
C945 1500 0.45   С945 17.5  21.0  0.6  B59945C0160A070 Далее
C955 950 0.80  13.5  17.0  0.6  B59955C0160A070
C965 700 1.20  11.0  14.5  0.6  B59965C0160A070
C975 550 1.80  9.0  12.5  0.6  B59975C0160A070
C985 300 4.60  6.5  10.0  0.6  B59985C0160A070
C995 150 13.0  4.0  7.5  0.5  B59995C0160A070
VR = 12/24 В DC/В AC, Vmax = 30 В DC/В AC
C935 1800 0.30   С935 22.0  25.5  0.6  B59945C0160A070 Далее
C945 1300 0.45 17.5  21.0  0.6  B59945C0120A070
C955 850 0.8 13.5  17.0  0.6  B59955C0120A070
C965 600 1.20  11.0  14.5  0.6  B59965C0120A070
C975 450 1.80  9.0  12.5  0.6  B59975C0120A070
C985 250 4.60  6.5  10.0  0.6  B59985C0120A070
C995 120 13.0  4.0  7.5  0.5  B59995C0120A070
VR = 63 V DC/V AC, Vmax = 80 V DC/V AC
C910 1000 1.20   С910 22.0  25.5  0.8  B59910C0130A070 Далее
C930 700 1.65 22.0  25.5  0.6  B59930C0120A070
C930 700 2.20 17.5  21.0 0.8  B59930C0130A070
C940 450 2.30 17.5  21.0  0.6  B59940C0120A070
C930 340 1.65 22.0  25.5  0.6  B59930C0080A070
C950 320 3.70 13.5  17.0  0.6  B59950C0120A070
C950 320 4.90 11.0  14.5  0.6  B59950C0130A070
C960 250 5.60 11.0  14.5  0.6  B59960C0120A070
C960 250 5.60 11.0  14.5  0.6  B59960C0120A070
C960 250 8.00  9.0  12.5  0.6  B59960C0130A070
C940 245 2.30  17.5  21.0 0.6  B59940C0080A070
C950 170 3.70  13.5  17.0 0.6  B59950C0080A070
C970 150 9.40  9.0  12.5  0.6  B59970C0120A070
C970 150 20.0  6.5  10.0  0.6  B59970C0130A070
C960 130 20.0  6.5  10.0  0.6  B59960C0080A070
C970 90 9.40  9.0  12.5  0.6  B59970C0080A070
C980 85 25.00  6.5  10.0  0.6  B59980C0120A070
C980 85 25.00  6.5  10.0  0.6  B59980C0120A070
C980 85 62.00  4.0  7.5  0.6  B59980C0130A070
C980 50 25.00  6.5  10.0 0.6  B59980C0080A070
C990 50 55.0  4.0  7.5  0.5  B59990C0120A070
C990 30 55.0  4.0  7.5  0.5  B59990C0080A070
VR = 110 V DC/V AC, Vmax = 160 V DC/V AC
C830 525 3.7  С830 22.0  25.5  0.6  B59830C0160A070 Далее
C845 400 6.00  17.5  21.0  0.6  B59840C0160A070
C850 250 10.00  13.5  17.0  0.6  B59850C0160A070
C860 180 15.00  11.0  14.5  0.6  B59860C0160A070
C870 125 25.00  9.0  12.5  0.6  B59870C0160A070
C880 70 70.00  6.5  10.0  0.6  B59880C0160A070
C890 35 150.00  4.0  7.5  0.5  B59890C0160A070
VR = 230 В DC/В AC, Vmax = 265 В DC/В AC
C810 650 3.50   С910 22.0  25.5  0.8  B59810C0130A070 Далее
C830 460 3.70 22.0  25.5  0.6  B59830C0120A070
C830 450 5.0 17.5  21.0 0.8  B59830C0130A070
C840 330 6.0 17.5  21.0  0.6  B59840C0120A070
C840 330 9.0 13.5  17.0  0.6  B59840C0130A070
C850 200 10.0 13.5  17.0  0.6  B59850C0120A070
C830 250 3.70 22.0  25.5  0.6  B59830C0080A070
C850 200 13.0 11.0  14.5  0.6  B59850C0130A070
C840 170 6.0 17.5  21.0  0.6  B59840C0080A070
C860 140 15.00  11.0  14.5  0.6  B59860C0120A070
C860 140 25.00  9.0  12.5 0.6  B59860C0130A070
C850 110 10.00  13.5  17.0 0.6  B59850C0080A070
C870 100 25.00  9.0  12.5  0.6  B59870C0120A070
C870 100 50.0  6.5  10.0  0.6  B59870C0130A070
C860 90 15.0  11.0  14.5  0.6  B59860C0080A070
C872 80 35.00  9.0  12.5  0.6  B59872C0120A070
C873 70 45.00  9.0  12.5  0.6  B59873C0120A070
C874 60 55.00  9.0  12.5  0.6  B59874C0120A070
C870 60 25.00  9.0  12.5  0.6  B59870C0080A070
C880 55 70.00  6.5  10.0 0.6  B59880C0120A070
C875 55 65.0  9.0  12.5  0.6  B59875C0120A070
C880 55 160.0  4.0  7.5  0.6  B59880C0130A070
C883 35 120.0  6.5  10.0  0.6  B59883C0120A070
C890 30 150.0  4.0  7.5  0.5  B59890C0120A070
C880 30 70.0  6.5  10.0  0.6  B59880C0080A070
C890 15 150.0  4.0  7.5  0.5 B59890C0080A070
VR = 380 В DC/В AC, Vmax = 420 В DC/В AC
C884 21 600.0   С945 6.5  10.0  0.6  B59884C0120A070 Далее
VR = 500 В DC/В AC, Vmax = 550 В DC/В AC
C885 15 1200.0   С885 6.5  10.0  0.6  BB59885C0120A070 Далее
C886 12 1500.0  6.5  10.0  0.6  B59886C0120A070
SMD thermistors
Type Inom, А  Rnom, Ohm Drawing Ordering code Detailed documentation
PTC themistors
VR = 500 В DC/В AC, Vmax = 550 В DC/В AC
B404 4 3500.0    B404 B59085G1120A161 Далее
B406 2.5 5500 B59406B0060A040
VR = 24 В DC/В AC, Vmax = 30 В DC/В AC
P1301 310 3.1    B59101, B59201, B59301 B59301P1120A062 Далее
P1201 265 4.6 B59201P1120A062
P1301 205 3.1 B59301P1080A062
P1101 170 13.0 B59101P1120A062
P1201 165 4.6 B59201P1080A062
P1101 90 13.0 B59101P1080A062
VR = 63 В DC/В AC, Vmax = 80 В DC/В AC
P1315 150 16.0    B59101, B59201, B59301 B59315P1120A062 Далее
P1215 100 25.0 B59215P1120A062
P1301 205 3.1 B59301P1080A062
P1315 80 16.0 B59315P1080A062
P1115 70 55.0 B59115P1120A062
P1215 65 25.0 B59215P1080A062
P1115 40 55.0 B59115P1080A062
VR = 42 В DC/В AC, Vmax = 60 В DC/В AC
A622 22 220   A606_A607_A707_A807_A907 B59622A0090A062 Далее
VR = 63 В DC/В AC, Vmax = 80 В DC/В AC
A623 15 470   A606_A607_A707_A807_A907 B59622A0090A062 Далее
VR = 24 В DC/В AC, Vmax = 30 В DC/В AC
A606 920 27   A606_A607_A707_A807_A907 B59622A0090A062 Далее
A607 70 55 B59607A0120A062
VR = 63 В DC/В AC, Vmax = 80 В DC/В AC
A707 50 125   A606_A607_A707_A807_A907 B59707A0120A062 Далее
VR = 230 В DC/В AC, Vmax = 265 В DC/В AC
A807 15 400.0   A606_A607_A707_A807_A907 B59807A0120A062 Далее
VR = 230 В DC/В AC, Vmax = 265 В DC/В AC
A907 12 1500.0   A606_A607_A707_A807_A907 B59907A0120A062 Далее
Inrush current limiters in a plastic case
Type Umax,V  Rnominal, Ohm Drawing Ordering code Detailed information
J105 260  22   A606_A607_A707_A807_A907 B59105J0130A020 Далее
J107 440  56 B59107J0130A020
J109 560  100 B59109J0130A020

PTC thermistors for temperature control

PTC thermistors for temperature control PTC thermistors produced by Epcos are widely applied in measuring systems and temperature control systems, lighting equipment, home appliance, automobile electronics, DC/DC-converters and other equipment. These protection devices are characterised by a high operation speed and small sizes and are characterised by a wide range of working temperatures.
PTC thermistors aslimit temperature sensors (Leaded disks, coated, miniaturized)
Type TREF±ΔT,°C  Rnominal,Ohm Drawing Ordering code Detailed information
VR = 30 V DC
C8 70±5  ≤250   C8 B59008C0070A040 Далее
80±5 B59008C0080A040
90±5 B59008C0090A040
100±5 B59008C0100A040
110±5 B59008C0110A040
120±5 B59008C0120A040
130±5 B59008C0130A040
140±5 B59008C0140A040
150±5 B59008C0150A040
160±5 B59008C0160A040
VR = 30 В DC
C100 10±5  >5000   C100rs/> B59100C0010A070 Далее
50±5  <150 B59100C0050A070
60±5  ≤100 B59100C0060A070
70±5  ≤100 B59100C0070A070
80±5  ≤100 B59100C0080A070
90±5  ≤100 B59100C0090A070
100±5  ≤100 B59100C0100A070
110±5  ≤100 B59100C0110A070
120±5  ≤100 B59100C0120A070
130±5  ≤100 B59100C0130A070
140±5  ≤100 B59100C0140A070
150±5  ≤100 B59100C0150A070
PTC thermistor for motor protection
Type TREF±ΔT,°C  Rnominal, Ohm Drawing Ordering code Detailed information
VR = 230 В DC/В AC, Rном ≤100 Ohm
M1100 60±5  ≤570 M1100 B59100M1060A070 Далее
70±5  ≤570 B59100M1070A070
80±5  ≤570 B59100M1080A070
90±5  ≤550 B59100M1090A070
100±5  ≤550 B59100M1100A070
110±5  ≤550 B59100M1110A070
120±5  ≤550 B59100M1120A070
130±5  ≤550 B59100M1130A070
140±5  ≤550 B59100M1140A070
145±5  ≤550 B59100M1150A070
150±5  ≤550 B59100M1145A070
155±5  ≤550 B59100M1155A070
160±5  ≤550 B59100M1160A070
170±5  ≤570 B59100M1170A070
180±5  ≤570 B59100M1180A070

Additional information


PTC thermistors data book

Склад

Full information on all series of PTC thermistors is represented in Epcos data book.


The components in stock

Склад

To check the price and items in-stock You can refer to our online shop.


П=


One can use the search program

 

 
 
 
NORTH-WESTERN LABORATORY: NEWS
 
05.06 09 
Epcos has developed a new N95 power ferrite material with an exceptionally low power loss.



12.05 09 
New Epcos ferrite ring core sizes : N87 R20*12*6 and N87 R28*16*9



02.02 09 
New Epcos ferrite E core size : N87 E16/8/7,8 B66502GX187



 
 


«North West Laboratory» © 1999—2016
Site design — Alphastudio

Development & support — Mihail Fedorov