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Circuit Protection

Circuit Protection devices and components are available at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many circuit protection manufacturers including Bourns, Eaton, TDK, Littelfuse, Semtech, Vishay, & more.
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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Varistors 20mm Radial Disc MOV - Kinked Leads, T&R MOV-20D621KKTR Bourns 1: $1.77 8,024In Stock 6,000Expected 11/11/2026	Mfr. Part No. MOV-20D621KKTR Mouser Part No 652-MOV-20D621KKTR	Bourns	Varistors 20mm Radial Disc MOV - Kinked Leads, T&R Learn More about Bourns mov xd metal oxide varistors	Datasheet	8,024In Stock 6,000Expected 11/11/2026	Cut Tape $1.77 $1.09 $0.749 Reel $0.749 $0.618 View $0.504 $0.461 MouseReel Available	Min.: 1 Mult.: 1 : 250
ESD Protection Diodes / TVS Diodes 24V 15A 30kV SOD882 Bi-dir TVS SC24COM-01ETG Littelfuse 1: $0.58 38,960In Stock	Mfr. Part No. SC24COM-01ETG Mouser Part No 576-SC24COM-01ETG	Littelfuse	ESD Protection Diodes / TVS Diodes 24V 15A 30kV SOD882 Bi-dir TVS Learn More about Littelfuse sc24com 01etg tvs diode	Datasheet	38,960In Stock	Cut Tape $0.58 $0.275 $0.234 $0.174 Reel $0.101 View $0.155 $0.096 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes Zen TVS 5000W 20V Bi DO-214AB TR13 SZ5KASMC20CAT3G Littelfuse 1: $3.92 7,355In Stock	Mfr. Part No. SZ5KASMC20CAT3G Mouser Part No 576-SZ5KASMC20CAT3G	Littelfuse	ESD Protection Diodes / TVS Diodes Zen TVS 5000W 20V Bi DO-214AB TR13 Learn More about Littelfuse sz5kasmc tvs diodes	Datasheet	7,355In Stock	Cut Tape $3.92 $2.57 $2.16 $1.87 View Reel $1.49 $1.58 $1.49 $1.49 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Circuit Breakers Single pole high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off position. Thr 413-K14-LN2-80A E-T-A 1: $88.14 354In Stock	Mfr. Part No. 413-K14-LN2-80A Mouser Part No 457-413-K14-LN2-80A	E-T-A	Circuit Breakers Single pole high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off position. Thr Learn More about E-T-A e t a 413 circuit breakers	Datasheet	354In Stock	$88.14 $74.67 $68.87 $56.98 Quote Quote	Min.: 1 Mult.: 1
Surface Mount Fuses 125VAC 1A .078ohms 453 NANO2 0453001.MR Littelfuse 1: $1.76 18,090In Stock	Mfr. Part No. 0453001.MR Mouser Part No 576-0453001.MR	Littelfuse	Surface Mount Fuses 125VAC 1A .078ohms 453 NANO2 Learn More about Littelfuse indoor led protection	Datasheet	18,090In Stock	Cut Tape $1.76 $1.39 $1.25 $1.13 View Reel $0.793 $1.04 $0.97 $0.793 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Surface Mount Fuses 20A 32V FAST ACTING 0501020.WRA Littelfuse 1: $1.39 23,009In Stock	Mfr. Part No. 0501020.WRA Mouser Part No 576-0501020.WRA	Littelfuse	Surface Mount Fuses 20A 32V FAST ACTING Learn More about Littelfuse 501a fast acting fuses	Datasheet	23,009In Stock	Cut Tape $1.39 $1.25 $1.13 $0.963 View Reel $0.552 $0.813 $0.783 $0.674 $0.621 $0.552 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Surface Mount Fuses 350VAC 3.15A .0196ohms 885 NANO2 08853.15DR Littelfuse 1: $5.53 7,810In Stock	Mfr. Part No. 08853.15DR Mouser Part No 576-08853.15DR	Littelfuse	Surface Mount Fuses 350VAC 3.15A .0196ohms 885 NANO2 Learn More about Littelfuse 885 smt fuses	Datasheet	7,810In Stock	Cut Tape $5.53 $5.15 $4.76 $3.91 View Reel $2.43 $3.24 $3.11 $2.69 $2.44 $2.43 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Fuse Holder MINI Fuse - Inline 0FHM0001LXN Littelfuse 1: $6.41 9,797In Stock	Mfr. Part No. 0FHM0001LXN Mouser Part No 576-0FHM0001LXN	Littelfuse	Fuse Holder MINI Fuse - Inline Learn More about Littelfuse fhm in line fuse holders	Datasheet	9,797In Stock	$6.41 $5.72 $5.51 $4.29 View $3.75 $3.47 $3.10 $2.90	Min.: 1 Mult.: 1
Fuse Holder 5X2 OMM SMD FUSE BLOCK 65800001009 Littelfuse 1: $3.14 15,790In Stock	Mfr. Part No. 65800001009 Mouser Part No 576-65800001009	Littelfuse	Fuse Holder 5X2 OMM SMD FUSE BLOCK Learn More about Littelfuse _fuseholders	Datasheet	15,790In Stock	$3.14 $2.81 $2.27 $2.14 View $1.82 $1.65 $1.58 $1.52	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes Low-Cap 3Ch ESD Prot ection Array TPD3E001DRYR Texas Instruments 1: $1.22 82,332In Stock	Mfr. Part No. TPD3E001DRYR Mouser Part No 595-TPD3E001DRYR	Texas Instruments	ESD Protection Diodes / TVS Diodes Low-Cap 3Ch ESD Prot ection Array	Datasheet	82,332In Stock	Cut Tape $1.22 $0.693 $0.592 $0.496 Reel $0.284 View $0.407 $0.347 $0.33 $0.269 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Resettable Fuses - PPTC 20A 135mV BladeDevice BD280-1130-20/16 Littelfuse 1: $7.98 4,539In Stock	Mfr. Part No. BD280-1130-20/16 Mouser Part No 650-BD280-1130-20/16	Littelfuse	Resettable Fuses - PPTC 20A 135mV BladeDevice Learn More about Littelfuse bladed ptcs	Datasheet	4,539In Stock	$7.98 $6.62 $6.11 $5.07 View $4.67 $4.19 $3.87 $3.81 $3.80	Min.: 1 Mult.: 1
Circuit Breakers 10A 2-P Illum Amber P1 & P2 Trip QC W33-T4B1Q-10 TE Connectivity / P&B 1: $97.27 210In Stock	Mfr. Part No. W33-T4B1Q-10 Mouser Part No 655-W33-T4B1Q-10	TE Connectivity / P&B	Circuit Breakers 10A 2-P Illum Amber P1 & P2 Trip QC	Datasheet	210In Stock	$97.27 $88.17 $85.19 Quote Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 600W 16V 5% SMB (DO-214AA) SMBJ16AHE3_A/I Vishay Semiconductors 1: $0.90 382,211In Stock	Mfr. Part No. SMBJ16AHE3_A/I Mouser Part No 78-SMBJ16AHE3_A/I	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W 16V 5% SMB (DO-214AA) Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	382,211In Stock	Cut Tape $0.90 $0.56 $0.365 $0.275 Reel $0.227 View $0.251 $0.223 $0.19 $0.173 MouseReel Available	Min.: 1 Mult.: 1 : 3,200
NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY USP10975 Littelfuse 1: $9.40 3,210In Stock	Mfr. Part No. USP10975 Mouser Part No 803-USP10975	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY Learn More about Littelfuse thermistor probes assemblies	Datasheet	3,210In Stock	$9.40 $8.79 $8.40 $8.23 View $8.16 $7.93	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors T=5K 100deg C B59100M1100A070 TDK 1: $4.57 6,123In Stock	Mfr. Part No. B59100M1100A070 Mouser Part No 871-B59100M1100A70	TDK	PTC (Positive Temperature Coefficient) Thermistors T=5K 100deg C Learn More about TDK epcos ptc thermistors	Datasheet	6,123In Stock	$4.57 $4.10 $3.92 $3.59 Reel $2.80 View $3.41 $3.32 $3.12 $2.79	Min.: 1 Mult.: 1 : 400
PTC (Positive Temperature Coefficient) Thermistors 850A 130A 70 10X2.5 PTC Thermistor B59850C0130A070 TDK 1: $1.86 22,095In Stock	Mfr. Part No. B59850C0130A070 Mouser Part No 871-B59850C0130A070	TDK	PTC (Positive Temperature Coefficient) Thermistors 850A 130A 70 10X2.5 PTC Thermistor Learn More about TDK epcos ptc thermistors	Datasheet	22,095In Stock	$1.86 $1.72 $1.46 $1.43 Reel $0.953 View $1.30 $1.19 $1.10 $0.865	Min.: 1 Mult.: 1 : 1,300
Fuse Holder SCWS,Terminals,Cover Assorted 01520001TXN941 Littelfuse 1: $19.99 1,546In Stock	Mfr. Part No. 01520001TXN941 Mouser Part No 576-01520001TXN941	Littelfuse	Fuse Holder SCWS,Terminals,Cover Assorted Learn More about Littelfuse _fuseholders	Datasheet	1,546In Stock	$19.99 $16.25 $15.21 $12.56 View $10.78 $9.69 $9.10 $8.98 Quote	Min.: 1 Mult.: 1
Surface Mount Fuses 50A 250V FAST ACTING 0456050.DRSDE Littelfuse 1: $7.66 6,780In Stock	Mfr. Part No. 0456050.DRSDE Mouser Part No 576-0456050.DRSDE	Littelfuse	Surface Mount Fuses 50A 250V FAST ACTING Learn More about Littelfuse 456de high current nano fuses	Datasheet	6,780In Stock	Cut Tape $7.66 $6.36 $5.87 $4.87 View Reel $3.07 $4.49 $4.03 $3.76 $3.51 $3.07 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Surface Mount Fuses 125V .125A HALIDE FREE 0466.125NRHF Littelfuse 1: $1.06 46,280In Stock	Mfr. Part No. 0466.125NRHF Mouser Part No 576-0466.125NRHF	Littelfuse	Surface Mount Fuses 125V .125A HALIDE FREE	Datasheet	46,280In Stock	Cut Tape $1.06 $0.962 $0.847 $0.75 View Reel $0.417 $0.649 $0.609 $0.548 $0.496 $0.417 $0.417 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Automotive Fuses 200A 32VDC Limiter Fuse 0CNL200.V Littelfuse 1: $40.06 866In Stock	Mfr. Part No. 0CNL200.V Mouser Part No 576-0CNL200.V	Littelfuse	Automotive Fuses 200A 32VDC Limiter Fuse	Datasheet	866In Stock	$40.06 $33.23 $21.95 $19.59 $19.29	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.00A 1206L300SLTHYR Littelfuse 1: $1.88 45,428In Stock	Mfr. Part No. 1206L300SLTHYR Mouser Part No 576-1206L300SLTHYR	Littelfuse	Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.00A Learn More about Littelfuse lorho	Datasheet	45,428In Stock	Cut Tape $1.88 $1.70 $1.44 $1.29 View Reel $0.801 $1.17 $1.07 $0.993 $0.928 $0.801 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Resettable Fuses - PPTC PTC 30V POLY 1812 HALOGEN-FREE .35A 1812L035/30DR Littelfuse 1: $1.92 19,218In Stock	Mfr. Part No. 1812L035/30DR Mouser Part No 576-1812L035/30DR	Littelfuse	Resettable Fuses - PPTC PTC 30V POLY 1812 HALOGEN-FREE .35A Learn More about Littelfuse 1812l fuses	Datasheet	19,218In Stock	Cut Tape $1.92 $1.73 $1.47 $1.34 Reel $0.827 View $1.20 $1.11 $0.823 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Fuse Holder CLASS G FUSE BLOCK 480V 60A 3 POLE LFG480603CDINR Littelfuse 1: $106.63 406In Stock	Mfr. Part No. LFG480603CDINR Mouser Part No 576-LFG480603CDINR	Littelfuse	Fuse Holder CLASS G FUSE BLOCK 480V 60A 3 POLE	Datasheet	406In Stock	$106.63 $92.25 $83.31 $72.08 $70.19	Min.: 1 Mult.: 1
Fuse Holder CLASS J FUSE BLOCK 600V 200A 3 POLE LFJ602003C Littelfuse 1: $512.77 79In Stock	Mfr. Part No. LFJ602003C Mouser Part No 576-LFJ602003C	Littelfuse	Fuse Holder CLASS J FUSE BLOCK 600V 200A 3 POLE	Datasheet	79In Stock	$512.77 $481.70 $443.83 Quote Quote	Min.: 1 Mult.: 1
Thyristor Surge Protection Devices - TSPD SIDACtor Bi 350V 3000A DO214AB RoHS P3800S3NLRP Littelfuse 1: $6.59 5,857In Stock	Mfr. Part No. P3800S3NLRP Mouser Part No 576-P3800S3NLRP	Littelfuse	Thyristor Surge Protection Devices - TSPD SIDACtor Bi 350V 3000A DO214AB RoHS Learn More about Littelfuse px0s3n	Datasheet	5,857In Stock	Cut Tape $6.59 $4.43 $3.20 $3.04 $2.88 Reel $2.88 MouseReel Available	Min.: 1 Mult.: 1 : 3,000

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Circuit Protection

Types of Circuit Protection