PTC (Positive Temperature Coefficient) Thermistors

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Self-Protecting PTC Thermistors

TDK Self-Protecting PTC Thermistors are suitable for smoothing capacitors in power supplies to prevent short-circuit damage. These self-protecting PTC thermistors are ideal for high pulse currents and a high number of operating cycles. Inrush current limiters are not damaged when directly connected to V_max, even without additional current limitation. Applications for TDK Self-Protecting PTC Thermistors include inrush current limiters (charging resistors) for smoothing and DC link capacitors and for the replacement of high-power fixed resistors for capacitor charging.

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Part #

PTC (Positive Temperature Coefficient) Thermistors 440 V AC, AEC-Q200 AEC-Q200

B59217J0130A020
TDK
1: £3.37
3,895In Stock

Mfr. Part No.
B59217J0130A020

Mouser Part No
871-B59217J0130A020

TDK

PTC (Positive Temperature Coefficient) Thermistors 440 V AC, AEC-Q200 AEC-Q200

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Datasheet

3,895In Stock

£3.37

£3.03

£2.90

£2.74

View

Min.: 1
Mult.: 1

Inrush Current Limiter Housing Type

56 Ohms

25 %

PCB Mount

Radial

- 40 C

+ 125 C

AEC-Q200

Case

PTC (Positive Temperature Coefficient) Thermistors 260AC,370DC,70oHMS PTC Thermistor

B59770C0120A070
TDK
1: £1.31
963In Stock

Mfr. Part No.
B59770C0120A070

Mouser Part No
871-B59770C120A70

TDK

PTC (Positive Temperature Coefficient) Thermistors 260AC,370DC,70oHMS PTC Thermistor

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Datasheet

963In Stock

£1.31

£1.25

£1.17

£1.13

View

Reel

£0.834

Min.: 1
Mult.: 1

: 1,000

Inrush Current Limiter Leaded Disk Type

70 Ohms

25 %

PCB Mount

Radial

- 40 C

+ 125 C

Ammo Pack

PTC (Positive Temperature Coefficient) Thermistors 560 V AC, AEC-Q200 AEC-Q200

B59219J0130A020
TDK
1: £3.76
7,239In Stock

Mfr. Part No.
B59219J0130A020

Mouser Part No
871-B59219J0130A020

TDK

PTC (Positive Temperature Coefficient) Thermistors 560 V AC, AEC-Q200 AEC-Q200

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Datasheet

7,239In Stock

£3.76

£3.22

£2.82

£2.62

View

Min.: 1
Mult.: 1

Surface Mount OverCurrent PTC

100 Ohms

25 %

PCB Mount

Radial

- 40 C

+ 125 C

AEC-Q200

Case

PTC (Positive Temperature Coefficient) Thermistors 440volts 120ohms ICL AEC-Q200

B59412C1130B070
TDK
1: £2.17
2,510In Stock
2,500Expected 02/09/2026

Mfr. Part No.
B59412C1130B070

Mouser Part No
871-B59412C1130B70

TDK

PTC (Positive Temperature Coefficient) Thermistors 440volts 120ohms ICL AEC-Q200

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Datasheet

2,510In Stock

2,500Expected 02/09/2026

£2.17

£1.92

£1.81

£1.61

View

Min.: 1
Mult.: 1

Inrush Current Limiter SMD Type

120 Ohms

25 %

PCB Mount

Radial

- 40 C

+ 125 C

AEC-Q100

Cut Tape

PTC (Positive Temperature Coefficient) Thermistors 440volts 56ohms ICL AEC-Q200

B59451C1130B70
TDK
1: £2.17
2,188In Stock

Mfr. Part No.
B59451C1130B70

Mouser Part No
871-B59451C1130B70

TDK

PTC (Positive Temperature Coefficient) Thermistors 440volts 56ohms ICL AEC-Q200

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Datasheet

2,188In Stock

£2.17

£2.00

£1.66

£1.53

Reel

£1.42

View

Min.: 1
Mult.: 1

: 500

B597x-Cx

56 Ohms

25 %

PCB Mount

Radial

- 40 C

+ 125 C

AEC-Q100

Ammo Pack

PTC (Positive Temperature Coefficient) Thermistors 280AC, 400DC,50oHMS

B59751C0120A070
TDK
1: £2.28
5,205In Stock
5,500Expected 08/10/2026

Mfr. Part No.
B59751C0120A070

Mouser Part No
871-B59751C120A70

TDK

PTC (Positive Temperature Coefficient) Thermistors 280AC, 400DC,50oHMS

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Datasheet

5,205In Stock

5,500Expected 08/10/2026

£2.28

£1.91

£1.69

£1.62

Reel

£1.35

View

Min.: 1
Mult.: 1

: 500

Telecom Pair Protection Over current in Housing style

50 Ohms

25 %

PCB Mount

Radial

- 40 C

+ 125 C

Ammo Pack

PTC (Positive Temperature Coefficient) Thermistors 280AC,400DC,80oHMS PTC Thermistor

B59752C0120A070
TDK
1: £1.82
1,139In Stock

Mfr. Part No.
B59752C0120A070

Mouser Part No
871-B59752C120A70

TDK

PTC (Positive Temperature Coefficient) Thermistors 280AC,400DC,80oHMS PTC Thermistor

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Datasheet

1,139In Stock

£1.82

£1.75

£1.64

£1.58

Reel

£1.34

View

Min.: 1
Mult.: 1

: 500

Inrush Current Limiter Leaded Disk Type

80 Ohms

25 %

PCB Mount

Radial

- 40 C

+ 125 C

Ammo Pack

PTC (Positive Temperature Coefficient) Thermistors 440AC,620DC,120oHMS PTC Thermistor

B59753C0120A070
TDK
1: £1.71
2,683In Stock
1,500Expected 31/08/2026

Mfr. Part No.
B59753C0120A070

Mouser Part No
871-B59753C120A70

TDK

PTC (Positive Temperature Coefficient) Thermistors 440AC,620DC,120oHMS PTC Thermistor

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Datasheet

2,683In Stock

1,500Expected 31/08/2026

£1.71

£1.59

£1.42

£1.36

View

Min.: 1
Mult.: 1

Telecom Pair Protection Over current in Housing style

120 Ohms

25 %

PCB Mount

Radial

- 40 C

+ 125 C

Cut Tape

PTC (Positive Temperature Coefficient) Thermistors 560vAC,800vDC, 500 Ohms

B59755C0115A070
TDK
1: £2.17
1,134In Stock
2,500Expected 21/09/2026

Mfr. Part No.
B59755C0115A070

Mouser Part No
871-B59755C115A70

TDK

PTC (Positive Temperature Coefficient) Thermistors 560vAC,800vDC, 500 Ohms

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Datasheet

1,134In Stock

2,500Expected 21/09/2026

£2.17

£2.00

£1.66

£1.53

Reel

£1.41

View

Min.: 1
Mult.: 1

: 500

Inrush Current Limiter Leaded Disk Type

500 Ohms

25 %

PCB Mount

Radial

- 40 C

+ 125 C

Ammo Pack

PTC (Positive Temperature Coefficient) Thermistors 1000AC/DC,7.5KoHMS PTC Thermistor

B59758C0110A070
TDK
1: £2.13
1,586In Stock
4,000Expected 30/09/2026

Mfr. Part No.
B59758C0110A070

Mouser Part No
871-B59758C110A70

TDK

PTC (Positive Temperature Coefficient) Thermistors 1000AC/DC,7.5KoHMS PTC Thermistor

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Datasheet

1,586In Stock

4,000Expected 30/09/2026

£2.13

£1.93

£1.72

£1.63

Reel

£1.60

View

Min.: 1
Mult.: 1

: 500

Inrush Current Limiter Leaded Disk Type

7.5 kOhms

33 %

PCB Mount

Radial

- 40 C

+ 125 C

Ammo Pack

PTC (Positive Temperature Coefficient) Thermistors 440AC,620DC,500oHMS PTC Thermistor

B59773C0120A070
TDK
1: £1.86
2,204In Stock
700Expected 31/08/2026

Mfr. Part No.
B59773C0120A070

Mouser Part No
871-B59773C120A70

TDK

PTC (Positive Temperature Coefficient) Thermistors 440AC,620DC,500oHMS PTC Thermistor

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Datasheet

2,204In Stock

700Expected 31/08/2026

£1.86

£1.52

£1.23

£1.14

Reel

£0.925

View

Min.: 1
Mult.: 1

: 1,000

Inrush Current Limiter Leaded Disk Type

500 Ohms

25 %

PCB Mount

Radial

- 40 C

+ 125 C

Ammo Pack

PTC (Positive Temperature Coefficient) Thermistors PTC Thermistor J 204-B 130-A 10 16X3,1

B59204J130B10
TDK
1: £6.29
100In Stock

Mfr. Part No.
B59204J130B10

Mouser Part No
871-B59204J130B10

TDK

PTC (Positive Temperature Coefficient) Thermistors PTC Thermistor J 204-B 130-A 10 16X3,1

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100In Stock

£6.29

£5.68

£5.45

£5.18

View

Min.: 1
Mult.: 1

B59204

100 Ohms

25 %

- 40 C

+ 125 C

Tray

PTC (Positive Temperature Coefficient) Thermistors 280AC, 400DC,25oHMS

B59750C120A70
TDK
1: £2.17
15,989On Order

Mfr. Part No.
B59750C120A70

Mouser Part No
871-B59750C120A70

TDK

PTC (Positive Temperature Coefficient) Thermistors 280AC, 400DC,25oHMS

Learn More

Datasheet

15,989On Order

£2.17

£1.85

£1.65

£1.57

View

Reel

£1.26

Min.: 1
Mult.: 1

: 500

B597x-Cx

25 Ohms

25 %

PCB Mount

Radial

- 40 C

+ 125 C

Ammo Pack

PTC (Positive Temperature Coefficient) Thermistors PTC Thermistor J 201-B 140-A 10 16X3

B59201J140B10
TDK
192: £4.48
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
B59201J140B10

Mouser Part No
871-B59201J140B10

TDK

PTC (Positive Temperature Coefficient) Thermistors PTC Thermistor J 201-B 140-A 10 16X3

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Non-Stocked Lead-Time 14 Weeks

£4.48

£3.96

£3.88

Min.: 192
Mult.: 192

B59201

20 Ohms

30 %

- 40 C

+ 125 C

Tray

Self-Protecting PTC Thermistors

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