Automotive Circuit Protection

TDK’s portfolio of automotive circuit protection devices includes AVR series chip varistors for voltage protection and NTC thermistors for temperature protection. AVR varistors protect against electrostatic discharge (ESD), voltage surges in power supplies from lightning, and systems for power generation and distribution. These products are also used in the highly-sensitive electronics in vehicles, household appliances, PCs, and notebook computers. NTC thermistors protect internal circuits or devices from overheating by acting as temperature sensors in monitoring systems. TDK has reduced the size of NTC products by applying the same multilayer technology developed for multilayer ceramic chip capacitors (MLCCs).

Types of Circuit Protection

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Results: 287
Select Image Part # Mfr. Description Datasheet Availability Pricing (PEN) Filter the results in the table by unit price based on your quantity. Qty. RoHS
TDK NTC Thermistors 0402 10K OHM 0.5% NTC AEC-Q200 125C 160,823In Stock
Cut Tape
S/1.25
S/1.15
S/1.02
S/0.946
Reel
S/0.553
Min.: 1
Mult.: 1
: 10,000
TDK NTC Thermistors 0603 2.2K OHM 5% NTC AEC-Q200 125C 4,056In Stock
Cut Tape
S/5.18
S/4.90
S/4.63
S/4.40
Reel
S/3.27
Min.: 1
Mult.: 1
: 4,000
TDK NTC Thermistors 0603 6.8Kohm 5% Thermistor 3,952In Stock
Cut Tape
S/3.89
S/3.68
S/3.45
S/3.29
Reel
S/2.56
Min.: 1
Mult.: 1
: 4,000
TDK Varistors 0402 39V 1.1 pF 18,513In Stock
Cut Tape
S/3.31
S/2.12
S/1.73
S/1.66
Reel
S/1.38
Min.: 1
Mult.: 1
: 10,000
TDK Varistors 0805 40VDC 250pF 10% AEC-Q200 31,745In Stock
Cut Tape
S/1.05
S/0.646
S/0.51
S/0.483
Reel
S/0.424
Min.: 1
Mult.: 1
: 2,000
TDK NTC Thermistors Case EIA 0201 B= 1% ,47kO 1% 65,790In Stock
Cut Tape
S/0.389
S/0.288
S/0.249
S/0.23
Reel
S/0.14
Min.: 1
Mult.: 1
: 15,000
TDK NTC Thermistors 0402 100Kohm 0.5% AEC-Q200 125C 14,297In Stock
Cut Tape
S/1.09
S/0.996
S/0.88
S/0.833
Reel
S/0.561
Min.: 1
Mult.: 1
: 10,000
TDK NTC Thermistors THERMISTOR, NTC 4.7K OHM, 5%, 0805 4,278In Stock
Cut Tape
S/54.50
S/49.51
S/47.68
S/45.46
Reel
S/36.47
Min.: 1
Mult.: 1
: 2,000
TDK NTC Thermistors THERMISTOR, NTC 40 OHM, 3%, 0201 8,750In Stock
Cut Tape
S/0.895
S/0.767
S/0.677
S/0.545
Reel
S/0.346
Min.: 1
Mult.: 1
: 15,000
TDK NTC Thermistors 22Kohm 5% 0603 2,363In Stock
Cut Tape
S/0.74
S/0.607
S/0.537
S/0.432
Reel
S/0.319
Min.: 1
Mult.: 1
: 4,000
TDK NTC Thermistors THERMISTOR, NTC 47K OHM, 3%, 0402 8,580In Stock
Cut Tape
S/0.389
S/0.304
S/0.269
S/0.23
Reel
S/0.14
Min.: 1
Mult.: 1
: 10,000
TDK NTC Thermistors 0603 47Kohm 3% Thermistor AEC-Q200 3,465In Stock
Cut Tape
S/0.895
S/0.81
S/0.708
S/0.584
Reel
S/0.397
Min.: 1
Mult.: 1
: 4,000
TDK NTC Thermistors 47Kohm 5% 0402 8,182In Stock
Cut Tape
S/0.389
S/0.304
S/0.269
S/0.249
Reel
S/0.152
Min.: 1
Mult.: 1
: 10,000
TDK NTC Thermistors 0603 470Kohm 5% AEC-Q200 125C 150In Stock
4,000Expected 10/26/2026
Cut Tape
S/0.779
S/0.724
S/0.638
S/0.514
Reel
S/0.362
Min.: 1
Mult.: 1
: 4,000
TDK NTC Thermistors 0603 100K OHM 5% NTC AEC-Q200 125C 580In Stock
Cut Tape
S/0.74
S/0.697
S/0.615
S/0.498
Reel
S/0.331
Min.: 1
Mult.: 1
: 4,000
TDK NTC Thermistors 0603 150K OHM 5% NTC AEC-Q200 125C 220In Stock
Cut Tape
S/0.817
S/0.755
S/0.654
S/0.533
Reel
S/0.366
Min.: 1
Mult.: 1
: 4,000
TDK NTC Thermistors THERMISTOR, NTC 10K OHM, 3%, 0201 6,127In Stock
15,000Expected 10/26/2026
Cut Tape
S/2.30
S/2.14
S/2.00
S/1.90
Reel
S/1.42
Min.: 1
Mult.: 1
: 15,000
TDK Varistors 0402 0.3 6.8v 14,255In Stock
Cut Tape
S/0.662
S/0.381
S/0.358
S/0.35
Reel
S/0.214
Min.: 1
Mult.: 1
: 20,000
TDK NTC Thermistors THERMISTOR, NTC 220K OHM, 3%, 0603 1,517In Stock
Cut Tape
S/4.83
S/4.59
S/4.32
S/4.13
Reel
S/3.23
Min.: 1
Mult.: 1
: 4,000
TDK NTC Thermistors 0603 3.3Kohm 5% Thermistor 3,850In Stock
Cut Tape
S/4.87
S/4.55
S/3.97
S/3.73
Reel
S/2.56
Min.: 1
Mult.: 1
: 4,000
TDK Varistors 1.2pF 70VDC 0402 AEC-Q200, Single Pair Ethernet 1000BASE-T1 37,486In Stock
Cut Tape
S/0.467
S/0.265
S/0.202
S/0.191
Reel
S/0.144
Min.: 1
Mult.: 1
: 10,000
TDK Varistors 0402 27V 1A 15pF 20,873In Stock
Cut Tape
S/0.428
S/0.261
S/0.199
S/0.187
Reel
S/0.16
Min.: 1
Mult.: 1
: 10,000
TDK Varistors 1.0x0.5mm EIA 0402 35,125In Stock
Cut Tape
S/0.428
S/0.261
S/0.199
S/0.187
Reel
S/0.156
Min.: 1
Mult.: 1
: 10,000
TDK Varistors 0805 53VDC 200pF 10% AEC-Q200 7,394In Stock
Cut Tape
S/1.09
S/0.662
S/0.522
S/0.494
Reel
S/0.432
Min.: 1
Mult.: 1
: 2,000
TDK Varistors 0402 0.2 120v 17,068In Stock
Cut Tape
S/0.662
S/0.381
S/0.358
S/0.339
Reel
S/0.214
Min.: 1
Mult.: 1
: 20,000