Circuit Protection – Mouser Japan

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PTC Thermistors

TDK PTC Thermistors are thermally sensitive semiconductor resistors made of ceramic components whose electrical resistance rapidly increases when a certain temperature is exceeded. This feature makes TDK PTC Thermistors ideal for use in electrical and electronic engineering applications, for example as resettable fuses against current overload or as short circuit protection in motors. Applications include measurement and control engineering, entertainment, household, and automotive electronics, and data systems and telecommunications.

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Types of Circuit Protection

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Part #

PTC Thermistors T=5K 100deg C

B59100M1100A070
TDK
1: ¥687.7
6,140In Stock

Mfr. Part #
B59100M1100A070

Mouser Part #
871-B59100M1100A70

TDK

PTC Thermistors T=5K 100deg C

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Datasheet

6,140In Stock

¥687.7

¥616.2

¥589.7

¥556.4

Reel

¥463.4

View

Min.: 1
Mult.: 1

: 400

PTC Thermistors 850A 130A 70 10X2.5 PTC Thermistor

B59850C0130A070
TDK
1: ¥308.9
22,095In Stock

Mfr. Part #
B59850C0130A070

Mouser Part #
871-B59850C0130A070

TDK

PTC Thermistors 850A 130A 70 10X2.5 PTC Thermistor

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Datasheet

22,095In Stock

¥308.9

¥285.7

¥242.5

¥237.5

Reel

¥158.3

View

Min.: 1
Mult.: 1

: 1,300

PTC Thermistors 1210 230Vdc 40mA PTC Overcurrent

B59807A0090A062
TDK
1: ¥137.9
41,668In Stock

Mfr. Part #
B59807A0090A062

Mouser Part #
871-B59807A0090A062

TDK

PTC Thermistors 1210 230Vdc 40mA PTC Overcurrent

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Datasheet

41,668In Stock

Cut Tape

¥137.9

¥127.4

¥117.3

¥103.6

View

Reel

¥60

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

PTC Thermistors 0603 470ohms 85C Temperature Sensor

B59641A0085A062
TDK
1: ¥63.1
151,083In Stock

Mfr. Part #
B59641A0085A062

Mouser Part #
871-B59641A0085A062

TDK

PTC Thermistors 0603 470ohms 85C Temperature Sensor

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Datasheet

151,083In Stock

Cut Tape

¥63.1

¥57.6

¥49.7

¥40.9

Reel

¥31.2

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors PTC Thermistor P 1115-A 120-A

B59115P1120A62
TDK
1: ¥308.9
4,000In Stock
1,000Expected 10/27/2026

Mfr. Part #
B59115P1120A62

Mouser Part #
871-B59115P1120A62

TDK

PTC Thermistors PTC Thermistor P 1115-A 120-A

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Datasheet

4,000In Stock

1,000Expected 10/27/2026

Cut Tape

¥308.9

¥287.4

¥254.1

¥237.5

Reel

¥164.9

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PTC Thermistors 0805 680ohms 90C Temperature Sensor

B59701A0090A062
TDK
1: ¥116.3
4,294In Stock

Mfr. Part #
B59701A0090A062

Mouser Part #
871-B59701A0090A062

TDK

PTC Thermistors 0805 680ohms 90C Temperature Sensor

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Datasheet

4,294In Stock

Cut Tape

¥116.3

¥110

¥102.8

¥97.8

View

Reel

¥70.3

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 4.1A 6.0ohms

B59840C0160A070
TDK
1: ¥325.6
8,601In Stock

Mfr. Part #
B59840C0160A070

Mouser Part #
871-B59840C160A70

TDK

PTC Thermistors 4.1A 6.0ohms

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Datasheet

8,601In Stock

¥325.6

¥310.6

¥292.3

¥279

Reel

¥234.2

View

Min.: 1
Mult.: 1

: 1,000

PTC Thermistors 874A 120A 70 8X2.5 PTC Thermistor

B59874C0120A070
TDK
1: ¥234.2
1,944In Stock

Mfr. Part #
B59874C0120A070

Mouser Part #
871-B59874C0120A070

TDK

PTC Thermistors 874A 120A 70 8X2.5 PTC Thermistor

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Datasheet

1,944In Stock

¥234.2

¥215.9

¥197.7

¥179.4

Reel

¥130.9

View

Min.: 1
Mult.: 1

: 1,000

PTC Thermistors 910-A 130-A 70 20X1 PTC Thermistor

B59910C0130A070
TDK
1: ¥1,097.9
1,242In Stock

Mfr. Part #
B59910C0130A070

Mouser Part #
871-B59910C0130A070

TDK

PTC Thermistors 910-A 130-A 70 20X1 PTC Thermistor

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Datasheet

1,242In Stock

Cut Tape

¥1,097.9

¥953.4

¥858.7

¥797.3

Reel

¥611.2

View

Min.: 1
Mult.: 1

: 700

PTC Thermistors 990-A 120-A 51 3X1 PTC Thermistor

B59990C0120A051
TDK
1: ¥159.5
3,744In Stock

Mfr. Part #
B59990C0120A051

Mouser Part #
871-B59990C0120A051

TDK

PTC Thermistors 990-A 120-A 51 3X1 PTC Thermistor

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Datasheet

3,744In Stock

Cut Tape

¥159.5

¥145.8

¥122.7

¥115.4

View

Reel

¥67.8

Min.: 1
Mult.: 1

: 3,000

PTC Thermistors 120C +/-5C Motor Prot Triple Sensor

B59300M1120A070
TDK
1: ¥996.6
923In Stock

Mfr. Part #
B59300M1120A070

Mouser Part #
871-B59300M1120A070

TDK

PTC Thermistors 120C +/-5C Motor Prot Triple Sensor

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Datasheet

923In Stock

¥996.6

¥896.9

¥860.4

¥815.6

Reel

¥710.9

View

Min.: 1
Mult.: 1

: 200

PTC Thermistors 0603 470ohms 85C Temperature Sensor

B59601A0085A062
TDK
1: ¥86.4
6,629In Stock

Mfr. Part #
B59601A0085A062

Mouser Part #
871-B59601A0085A062

TDK

PTC Thermistors 0603 470ohms 85C Temperature Sensor

Learn More

Datasheet

6,629In Stock

Cut Tape

¥86.4

¥81.1

¥75.6

¥71.8

View

Reel

¥45

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 830A 120A 70 20X2.5 PTC Thermistor

B59830C0120A070
TDK
1: ¥461.8
2,553In Stock

Mfr. Part #
B59830C0120A070

Mouser Part #
871-B59830C0120A070

TDK

PTC Thermistors 830A 120A 70 20X2.5 PTC Thermistor

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Datasheet

2,553In Stock

¥461.8

¥380.4

¥338.8

¥322.2

Reel

¥245.8

View

Min.: 1
Mult.: 1

: 1,000

PTC Thermistors 885A 120A 51 5X2.5 PTC Thermistor

B59885C0120A051
TDK
1: ¥247.5
2,437In Stock

Mfr. Part #
B59885C0120A051

Mouser Part #
871-B59885C0120A051

TDK

PTC Thermistors 885A 120A 51 5X2.5 PTC Thermistor

Learn More

Datasheet

2,437In Stock

Cut Tape

¥247.5

¥227.6

¥201

¥154.3

View

Reel

¥105.5

Min.: 1
Mult.: 1

: 1,500

PTC Thermistors 4.3A 1.2ohms

B59965C0120A070
TDK
1: ¥297.3
2,165In Stock

Mfr. Part #
B59965C0120A070

Mouser Part #
871-B59965C120A70

TDK

PTC Thermistors 4.3A 1.2ohms

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Datasheet

2,165In Stock

¥297.3

¥275.7

¥230.9

¥225.9

Reel

¥160.3

View

Min.: 1
Mult.: 1

: 1,000

PTC Thermistors 220C 400V 80ohms PTC for Heating Apps

B59102R0220A010
TDK
1: ¥159.5
2,179In Stock

Mfr. Part #
B59102R0220A010

Mouser Part #
871-B59102R0220A010

TDK

PTC Thermistors 220C 400V 80ohms PTC for Heating Apps

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Datasheet

2,179In Stock

¥159.5

¥151.2

¥141.8

¥135.4

View

Min.: 1
Mult.: 1

PTC Thermistors 0402 470ohms 115C Temperature Sensor

B59421A0115A062
TDK
1: ¥74.7
14,471In Stock

Mfr. Part #
B59421A0115A062

Mouser Part #
871-B59421A0115A062

TDK

PTC Thermistors 0402 470ohms 115C Temperature Sensor

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Datasheet

14,471In Stock

Cut Tape

¥74.7

¥69.8

¥65.1

¥61.8

View

Reel

¥40

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

PTC Thermistors 0805 680ohms 70C Temperature Sensor

B59701A0070A062
TDK
1: ¥116.3
6,460In Stock

Mfr. Part #
B59701A0070A062

Mouser Part #
871-B59701A0070A062

TDK

PTC Thermistors 0805 680ohms 70C Temperature Sensor

Learn More

Datasheet

6,460In Stock

Cut Tape

¥116.3

¥110

¥102.8

¥98

View

Reel

¥71.6

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 5.5A 0.8ohms

B59955C0120A070
TDK
1: ¥323.9
3,746In Stock

Mfr. Part #
B59955C0120A070

Mouser Part #
871-B59955C120A70

TDK

PTC Thermistors 5.5A 0.8ohms

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Datasheet

3,746In Stock

¥323.9

¥299

¥254.1

¥247.5

View

Reel

¥163.3

Min.: 1
Mult.: 1

: 2,000

PTC Thermistors 0402 470ohms 135C Temperature Sensor

B59421A0135A062
TDK
1: ¥74.7
9,488In Stock

Mfr. Part #
B59421A0135A062

Mouser Part #
871-B59421A0135A062

TDK

PTC Thermistors 0402 470ohms 135C Temperature Sensor

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Datasheet

9,488In Stock

Cut Tape

¥74.7

¥69.8

¥65.1

¥61.8

View

Reel

¥42.2

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

PTC Thermistors 0805 680ohms 110C Temperature Sensor

B59701A0110A062
TDK
1: ¥116.3
6,520In Stock

Mfr. Part #
B59701A0110A062

Mouser Part #
871-B59701A0110A062

TDK

PTC Thermistors 0805 680ohms 110C Temperature Sensor

Learn More

Datasheet

6,520In Stock

Cut Tape

¥116.3

¥110

¥102.6

¥97.8

View

Reel

¥57.8

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 10A 1.65ohms

B59930C0120A070
TDK
1: ¥528.2
2,290In Stock

Mfr. Part #
B59930C0120A070

Mouser Part #
871-B59930C120A70

TDK

PTC Thermistors 10A 1.65ohms

Learn More

Datasheet

2,290In Stock

¥528.2

¥456.8

¥406.9

¥385.4

Reel

¥312.3

View

Min.: 1
Mult.: 1

: 700

PTC Thermistors 1.0A 4.6ohms

B59985C0120A070
TDK
1: ¥161.1
5,633In Stock

Mfr. Part #
B59985C0120A070

Mouser Part #
871-B59985C120A70

TDK

PTC Thermistors 1.0A 4.6ohms

Learn More

Datasheet

5,633In Stock

¥161.1

¥126.6

¥115.8

¥102.5

View

Reel

¥81.6

Min.: 1
Mult.: 1

: 3,000

PTC Thermistors 25 OHM 25% SMD 3225

B59215P1080A62
TDK
1: ¥320.6
Non-Stocked Lead-Time 28 Weeks

Mfr. Part #
B59215P1080A62

Mouser Part #
871-B59215P1080A62

TDK

PTC Thermistors 25 OHM 25% SMD 3225

Learn More

Datasheet

Non-Stocked Lead-Time 28 Weeks

Cut Tape

¥320.6

¥299

¥282.4

¥247.5

Reel

¥181

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PTC Thermistors 880A 130A 70 3X2.5 PTC Thermistor

B59880C0130A070
TDK
1: ¥204.3
10,353In Stock

Mfr. Part #
B59880C0130A070

Mouser Part #
871-B59880C0130A070

TDK

PTC Thermistors 880A 130A 70 3X2.5 PTC Thermistor

Learn More

Datasheet

10,353In Stock

¥204.3

¥189.4

¥163.3

¥153.5

View

Reel

¥102.8

Min.: 1
Mult.: 1

: 2,000

PTC Thermistors

Types of Circuit Protection

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