Circuit Protection

Circuit Protection
Circuit Protection devices and components are available at Mouser Electronics from industry leading manufacturers. Mouser is an authorized distributor for many circuit protection manufacturers including Analog Devices, Bourns, Eaton, Phoenix Contact, TDK EPCOS, Littelfuse, Vishay, & more. 
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Please view our selection of circuit protection devices below.
Results: 362,063
Select Image Part # Mfr. Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Torex Semiconductor ESD Protection Diodes / TVS Diodes TVS Diode 169,866In Stock
Min.: 1
Mult.: 1
: 5,000


Semtech ESD Protection Diodes / TVS Diodes TVS 300W 15V 7"RL SOT23 3L 97,005In Stock
Min.: 1
Mult.: 1
: 3,000

Vishay Semiconductors ESD Protection Diodes / TVS Diodes Low-profile version 600 W uni-directional TVS in DFN3820A package with Automotive grade 27,280In Stock
Min.: 1
Mult.: 1
: 14,000

Bourns NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 2.5ohm Y kink bulk 5,473In Stock
Min.: 1
Mult.: 1

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,13V 5%, DFN3820A TVS 21,564In Stock
Min.: 1
Mult.: 1
: 14,000

Littelfuse ESD Protection Diodes / TVS Diodes 27V 5A 250W 15pF 30kV SC70-3 TVS Array 11,028In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS 5,313In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes TVS 1.5KW 300V Uni DO-214AB TR13 RoHS 5,973In Stock
Min.: 1
Mult.: 1
: 3,000

Bourns NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 20ohm Y kink bulk 6,193In Stock
Min.: 1
Mult.: 1

Vishay Semiconductors ESD Protection Diodes / TVS Diodes MSMP - A 7.5V 45,064In Stock
Min.: 1
Mult.: 1
: 4,500

Vishay Semiconductors ESD Protection Diodes / TVS Diodes T4F - A 30V 37,285In Stock
Min.: 1
Mult.: 1
: 10,000

Vishay Semiconductors ESD Protection Diodes / TVS Diodes T4F - A 33V 38,540In Stock
Min.: 1
Mult.: 1
: 10,000

Semtech ESD Protection Diodes / TVS Diodes Ultra Small PowerClamp 1-Line ESD & Surge Protection 6,043In Stock
Min.: 1
Mult.: 1
: 10,000

Semtech ESD Protection Diodes / TVS Diodes uClamp, 1-Line 7.9V TVS 9,235In Stock
Min.: 1
Mult.: 1
: 15,000

Littelfuse Surface Mount Fuses 32V 0402 5A V/FA HALIDE FREE 26,024In Stock
20,000Expected 18/8/2026
Min.: 1
Mult.: 1
: 10,000

Littelfuse Resettable Fuses - PPTC 6V .35A .1s 66,586In Stock
Min.: 1
Mult.: 1
: 4,000

Bourns ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes 10,203In Stock
Min.: 1
Mult.: 1
: 2,500

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W 16V 5% SMB (DO-214AA) 382,231In Stock
Min.: 1
Mult.: 1
: 3,200
Vishay Semiconductors SCRs New Input Thyristor - TO-220-e3 7,126In Stock
Min.: 1
Mult.: 1

Littelfuse NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY 3,374In Stock
Min.: 1
Mult.: 1

TDK PTC (Positive Temperature Coefficient) Thermistors T=5K 100deg C 6,165In Stock
Min.: 1
Mult.: 1
: 400

TDK PTC (Positive Temperature Coefficient) Thermistors 850A 130A 70 10X2.5 PTC Thermistor 23,338In Stock
Min.: 1
Mult.: 1
: 1,300

Bulgin Fuse Holder 32x6.3mm FUSEHOLDER 4,587In Stock
Min.: 1
Mult.: 1

Littelfuse Automotive Fuses 5100 Ohm 0.25W MINI 3,741In Stock
Min.: 1
Mult.: 1

Littelfuse Fuses with Leads - Through Hole 125V 3A MICRO Very Fast Acting 5,047In Stock
Min.: 1
Mult.: 1