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: 3.61 CHF
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

3.61 CHF

3.25 CHF

3.11 CHF

2.94 CHF

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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: 1.40 CHF
949In 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

949In Stock

1.40 CHF

1.34 CHF

1.25 CHF

1.21 CHF

View

Reel

0.894 CHF

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: 4.03 CHF
6 989In 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

6 989In Stock

4.03 CHF

3.45 CHF

3.02 CHF

2.81 CHF

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: 2.32 CHF
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

2.32 CHF

2.06 CHF

1.94 CHF

1.72 CHF

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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: 2.32 CHF
1 688In 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

1 688In Stock

2.32 CHF

2.14 CHF

1.78 CHF

1.64 CHF

Reel

1.53 CHF

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: 2.44 CHF
4 705In 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

4 705In Stock

5 500Expected 08/10/2026

2.44 CHF

2.05 CHF

1.82 CHF

1.73 CHF

Reel

1.45 CHF

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: 1.96 CHF
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

1.96 CHF

1.87 CHF

1.76 CHF

1.69 CHF

Reel

1.44 CHF

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: 1.83 CHF
2 658In 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 658In Stock

1 500Expected 31/08/2026

1.83 CHF

1.70 CHF

1.53 CHF

1.46 CHF

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: 2.32 CHF
1 134In Stock
2 500Expected 04/09/2026

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 04/09/2026

2.32 CHF

2.14 CHF

1.78 CHF

1.64 CHF

Reel

1.52 CHF

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: 2.28 CHF
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

2.28 CHF

2.07 CHF

1.84 CHF

1.75 CHF

Reel

1.71 CHF

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: 1.99 CHF
1 100In 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

1 100In Stock

700Expected 31/08/2026

1.99 CHF

1.63 CHF

1.32 CHF

1.23 CHF

Reel

0.992 CHF

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: 6.75 CHF
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

6.75 CHF

6.09 CHF

5.85 CHF

5.56 CHF

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: 2.32 CHF
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

2.32 CHF

1.98 CHF

1.77 CHF

1.68 CHF

View

Reel

1.35 CHF

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: 4.80 CHF
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

4.80 CHF

4.25 CHF

4.16 CHF

Min.: 192
Mult.: 192

B59201

20 Ohms

30 %

- 40 C

+ 125 C

Tray

Self-Protecting PTC Thermistors

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