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: Rp82.374
3.838In 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

3.838In Stock

Rp82.374

Rp73.934

Rp70.816

Rp66.963

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: Rp31.922
917In 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

917In Stock

Rp31.922

Rp30.454

Rp28.620

Rp27.519

Reel

Rp22.015

View

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: Rp91.913
6.316In 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

6.316In Stock

Rp91.913

Rp78.704

Rp68.981

Rp64.028

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: Rp52.836
2.900In Stock
4.000Expected 25/01/2027

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

2.900In Stock

4.000Expected 25/01/2027

Rp52.836

Rp46.966

Rp44.214

Rp39.260

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: Rp52.836
1.168In Stock
1.500On Order

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

1.168In Stock

1.500On Order

Rp52.836

Rp48.800

Rp40.545

Rp37.426

Reel

Rp34.674

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,25oHMS

B59750C120A70
TDK
1: Rp57.056
2.047In Stock
12.500On Order

Mfr. Part No.
B59750C120A70

Mouser Part No
871-B59750C120A70

TDK

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

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Datasheet

2.047In Stock

12.500On Order

Rp57.056

Rp48.800

Rp40.545

Rp37.426

Reel

Rp32.289

View

Min.: 1
Mult.: 1

: 500

B597x-Cx

25 Ohms

25 %

PCB Mount

Radial

- 40 C

+ 125 C

Ammo Pack

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

B59751C0120A070
TDK
1: Rp55.588
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

Rp55.588

Rp48.067

Rp45.131

Rp40.178

Reel

Rp32.472

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: Rp44.581
1.104In 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

1.104In Stock

Rp44.581

Rp42.563

Rp40.178

Rp38.527

Reel

Rp33.023

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 560vAC,800vDC, 500 Ohms

B59755C0115A070
TDK
1: Rp52.836
3.572In Stock

Mfr. Part No.
B59755C0115A070

Mouser Part No
871-B59755C115A70

TDK

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

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Datasheet

3.572In Stock

Rp52.836

Rp48.800

Rp40.545

Rp37.426

View

Min.: 1
Mult.: 1

Inrush Current Limiter Leaded Disk Type

500 Ohms

25 %

PCB Mount

Radial

- 40 C

+ 125 C

Bulk

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

B59758C0110A070
TDK
1: Rp52.103
4.384In Stock
10.000On Order

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

4.384In Stock

10.000On Order

Rp52.103

Rp47.149

Rp42.012

Rp39.994

Reel

Rp38.894

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: Rp31.922
1.800In Stock
5.000Expected 23/11/2026

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

1.800In Stock

5.000Expected 23/11/2026

Rp31.922

Rp30.454

Rp28.620

Rp27.519

Reel

Rp23.666

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: Rp153.739
100In Stock
192Expected 06/11/2026

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

192Expected 06/11/2026

Rp153.739

Rp138.879

Rp133.375

Rp126.771

View

Min.: 1
Mult.: 1

B59204

100 Ohms

25 %

- 40 C

+ 125 C

Tray

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

B59753C0120A070
TDK
1: Rp41.829
110In Stock
7.000On Order

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

110In Stock

7.000On Order

Rp41.829

Rp38.894

Rp34.857

Rp33.206

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 PTC Thermistor J 201-B 140-A 10 16X3

B59201J140B10
TDK
192: Rp109.526
Non-Stocked Lead-Time 17 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 17 Weeks

Rp109.526

Rp96.867

Rp94.665

Min.: 192
Mult.: 192

B59201

20 Ohms

30 %

- 40 C

+ 125 C

Tray

Self-Protecting PTC Thermistors

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