4 mm Circuit Protection

Types of Circuit Protection

Change category view
Results: 70
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Bourns Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 350volts SMT GDT 4X4.2mm DIA 4,300In Stock
Cut Tape
$0.74
$0.682
$0.565
$0.521
Reel
$0.32
Min.: 1
Mult.: 1
: 2,700
TDK PTC (Positive Temperature Coefficient) Thermistors 990-A 120-A 51 3X1 PTC Thermistor 3,744In Stock
Cut Tape
$0.961
$0.878
$0.74
$0.695
Reel
$0.475
Min.: 1
Mult.: 1
: 3,000
Vishay / BC Components PTC (Positive Temperature Coefficient) Thermistors PTC 110Deg C Temp 3,514In Stock
Cut Tape
$0.77
$0.726
$0.655
$0.616
Reel
$0.455
Min.: 1
Mult.: 1
: 2,000
TDK PTC (Positive Temperature Coefficient) Thermistors 890A 120A 51 3X2.5 PTC Thermistor 2,755In Stock
Cut Tape
$1.31
$1.21
$0.983
$0.923
Reel
$0.583
Min.: 1
Mult.: 1
: 3,000

Vishay / BC Components PTC (Positive Temperature Coefficient) Thermistors PTC 80Deg C Temp 2,749In Stock
$0.73
$0.686
$0.628
$0.59
Min.: 1
Mult.: 1
Eaton Electronics NTC (Negative Temperature Coefficient) Thermistors Single ended, Epoxy NTC, 100K ohm, 3950 B 41In Stock
$0.72
$0.683
$0.632
$0.609
Min.: 1
Mult.: 1
Eaton Electronics NTC (Negative Temperature Coefficient) Thermistors Single ended, Epoxy NTC, 50K ohm, 3950 B 1,965In Stock
$0.64
$0.604
$0.564
$0.537
Min.: 1
Mult.: 1
Bourns Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 75volts SMT GDT 4X4.2mm DIA 23,641In Stock
Cut Tape
$0.74
$0.682
$0.565
$0.521
Reel
$0.355
Min.: 1
Mult.: 1
: 2,700
Bourns Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90volts SMT GDT 4X4.2mm DIA 5,209In Stock
Cut Tape
$0.961
$0.84
$0.733
$0.676
Reel
$0.462
Min.: 1
Mult.: 1
: 2,700
Bourns Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 230volts SMT GDT 4X4.2mm DIA 9,223In Stock
Cut Tape
$0.74
$0.682
$0.565
$0.521
Reel
$0.348
Min.: 1
Mult.: 1
: 2,700
Bourns Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 04x 4.2mm, 1000V 7,600In Stock
Cut Tape
$0.98
$0.902
$0.748
$0.691
Reel
$0.492
Min.: 1
Mult.: 1
: 2,700
Bourns Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 04x 4.2mm, 1500V 7,711In Stock
Cut Tape
$0.98
$0.902
$0.748
$0.691
Reel
$0.473
Min.: 1
Mult.: 1
: 2,700
Bourns Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 04x 4.2mm, 2000V 3,177In Stock
Cut Tape
$0.98
$0.902
$0.748
$0.691
Reel
$0.508
Min.: 1
Mult.: 1
: 2,700
TDK NTC (Negative Temperature Coefficient) Thermistors NTC Thermistor M 703/10 4,372In Stock
3,500Expected 2026/11/24
$3.34
$3.08
$2.83
$2.69
Min.: 1
Mult.: 1
TDK NTC (Negative Temperature Coefficient) Thermistors 1703/100K/A1 3% E&E NTC Thermistor 431In Stock
1,800Expected 2026/11/19
$8.82
$7.97
$7.64
$7.26
Min.: 1
Mult.: 1
Vishay / BC Components PTC (Positive Temperature Coefficient) Thermistors PTC 80Deg C Temp 2,421In Stock
Cut Tape
$0.77
$0.726
$0.665
$0.629
Reel
$0.518
Min.: 1
Mult.: 1
: 2,000
Vishay / BC Components PTC (Positive Temperature Coefficient) Thermistors PTC 90Deg C Temp 397In Stock
4,000On Order
$0.77
$0.727
$0.651
$0.616
Min.: 1
Mult.: 1
Vishay / BC Components PTC (Positive Temperature Coefficient) Thermistors PTC 90Deg C Temp 223In Stock
2,000Expected 2026/10/19
Cut Tape
$0.77
$0.726
$0.665
$0.661
Reel
$0.471
Min.: 1
Mult.: 1
: 2,000
Vishay / BC Components PTC (Positive Temperature Coefficient) Thermistors PTC 100Deg C Temp 244In Stock
$0.87
$0.785
$0.655
$0.625
Min.: 1
Mult.: 1
Vishay / BC Components PTC (Positive Temperature Coefficient) Thermistors PTC 100Deg C Temp 1,798In Stock
Cut Tape
$0.77
$0.726
$0.665
$0.629
Reel
$0.476
Min.: 1
Mult.: 1
: 2,000
Vishay / BC Components PTC (Positive Temperature Coefficient) Thermistors PTC 110Deg C Temp 461In Stock
$1.05
$0.785
$0.628
$0.59
Min.: 1
Mult.: 1
Vishay / BC Components PTC (Positive Temperature Coefficient) Thermistors PTC 130Deg C Temp 1,059In Stock
$0.73
$0.686
$0.628
$0.60
Min.: 1
Mult.: 1
Vishay / BC Components PTC (Positive Temperature Coefficient) Thermistors PTC 130Deg C Temp 2,766In Stock
Cut Tape
$0.77
$0.726
$0.665
$0.629
Reel
$0.47
Min.: 1
Mult.: 1
: 2,000
Vishay / BC Components PTC (Positive Temperature Coefficient) Thermistors PTC 140Deg C Temp 1,055In Stock
$1.48
$1.20
$1.01
$0.969
Min.: 1
Mult.: 1
Vishay / BC Components PTC (Positive Temperature Coefficient) Thermistors PTC 150Deg C Temp 1,734In Stock
$0.73
$0.686
$0.628
$0.60
Min.: 1
Mult.: 1