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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.
ESD Protection Diodes / TVS Diodes LOW CAP TVS ESD8472MUT5G onsemi 1: $0.29 764,505In Stock	Mfr. Part No. ESD8472MUT5G Mouser Part No 863-ESD8472MUT5G	onsemi	ESD Protection Diodes / TVS Diodes LOW CAP TVS Learn More about onsemi on semi esd protection diodes arrays	Datasheet	764,505In Stock	Cut Tape $0.29 $0.127 $0.111 $0.081 View Reel $0.043 $0.066 $0.057 $0.054 $0.043 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Varistors 75VAC 10% 40mm High E B72240B0750K001 TDK 1: $26.37 1,684In Stock	Mfr. Part No. B72240B0750K001 Mouser Part No 871-B72240B0750K001	TDK	Varistors 75VAC 10% 40mm High E	Datasheet	1,684In Stock	$26.37 $21.53 $19.67 $18.64 View $18.03 $17.67	Min.: 1 Mult.: 1
Varistors 20mm Radial Disc MOV - Kinked Leads, T&R MOV-20D781KKTR Bourns 1: $2.06 3,942In Stock	Mfr. Part No. MOV-20D781KKTR Mouser Part No 652-MOV-20D781KKTR	Bourns	Varistors 20mm Radial Disc MOV - Kinked Leads, T&R Learn More about Bourns mov xd metal oxide varistors	Datasheet	3,942In Stock	Cut Tape $2.06 $1.29 $0.948 Reel $0.885 $0.782 View $0.62 $0.594 $0.583 MouseReel Available	Min.: 1 Mult.: 1 : 250
ESD Protection Diodes / TVS Diodes 27V 5A 250W 15pF 30kV SC70-3 TVS Array AQ27COM-02JTG Littelfuse 1: $0.84 10,998In Stock	Mfr. Part No. AQ27COM-02JTG Mouser Part No 576-AQ27COM-02JTG	Littelfuse	ESD Protection Diodes / TVS Diodes 27V 5A 250W 15pF 30kV SC70-3 TVS Array Learn More about Littelfuse aq24com aq27com arrays	Datasheet	10,998In Stock	Cut Tape $0.84 $0.383 $0.338 $0.258 Reel $0.18 View $0.247 $0.179 $0.155 $0.144 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS TP5.0SMDJ130A Littelfuse 1: $5.46 5,799In Stock	Mfr. Part No. TP5.0SMDJ130A Mouser Part No 576-TP5.0SMDJ130A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS Learn More about Littelfuse tp5 0smdj tvs diodes	Datasheet	5,799In Stock	Cut Tape $5.46 $3.66 $3.05 $2.77 Reel $2.00 View $2.45 $2.21 $1.96 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS TP5.0SMDJ170A Littelfuse 1: $5.46 5,285In Stock	Mfr. Part No. TP5.0SMDJ170A Mouser Part No 576-TP5.0SMDJ170A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS Learn More about Littelfuse tp5 0smdj tvs diodes	Datasheet	5,285In Stock	Cut Tape $5.46 $3.66 $3.23 $2.90 View Reel $2.07 $2.58 $2.21 $2.07 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 20ohm Y kink bulk BN-LG20Y200MYB Bourns 1: $1.49 6,131In Stock	Mfr. Part No. BN-LG20Y200MYB Mouser Part No 652-BN-LG20Y200MYB	Bourns	NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 20ohm Y kink bulk Learn More about Bourns bn powrtherm thermistors	Datasheet	6,131In Stock	$1.49 $1.19 $0.945 $0.889 View $0.867 $0.729 $0.676 $0.621	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 25 dia Power NTC 5ohm Y kink bulk BN-LG25Y5R0MYB Bourns 1: $3.48 4,469In Stock	Mfr. Part No. BN-LG25Y5R0MYB Mouser Part No 652-BN-LG25Y5R0MYB	Bourns	NTC (Negative Temperature Coefficient) Thermistors 25 dia Power NTC 5ohm Y kink bulk Learn More about Bourns bn powrtherm thermistors	Datasheet	4,469In Stock	$3.48 $2.61 $2.32 $2.20 View $2.14 $1.86 $1.80 $1.67	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 1.5KW,540V 5%,UNIDIR,SMC TVS 1.5SMC540AHM3_B/I Vishay Semiconductors 1: $2.16 2,822In Stock	Mfr. Part No. 1.5SMC540AHM3_B/I Mouser Part No 78-1.5SMC540AHM3_B/I	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 1.5KW,540V 5%,UNIDIR,SMC TVS Learn More about Vishay Semiconductors vishay 1point5smc tvs diodes	Datasheet	2,822In Stock	Cut Tape $2.16 $1.38 $1.11 $0.926 Reel $0.584 View $0.744 $0.664 $0.608 $0.537	Min.: 1 Mult.: 1 : 3,500
Connectorised Surge Protectors 4.3-10 F/F BULKHEAD COAXIAL RF SURGE PROTECTOR 698 PE73SP1061 Pasternack 1: $203.42 1In Stock New Product	Mfr. Part No. PE73SP1061 Mouser Part No 28-PE73SP1061 New Product	Pasternack	Connectorised Surge Protectors 4.3-10 F/F BULKHEAD COAXIAL RF SURGE PROTECTOR 698	Datasheet	1In Stock	$203.42 $181.70 $178.23 $177.57 View Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes Zen TVS 600W 58V UNI SOD-123FL TR13 SZSMF6L58AT3G Littelfuse 1: $0.97 3,742In Stock New Product	Mfr. Part No. SZSMF6L58AT3G Mouser Part No 576-SZSMF6L58AT3G New Product	Littelfuse	ESD Protection Diodes / TVS Diodes Zen TVS 600W 58V UNI SOD-123FL TR13 Learn More about Littelfuse szsmf6l tvs diodes	Datasheet	3,742In Stock	Cut Tape $0.97 $0.609 $0.389 $0.29 Reel $0.171 View $0.235 $0.203 $0.145 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes SOD-962 VRMW 15V 1uA TVS Diodes DF2S20ASL,L3F Toshiba 1: $0.19 9,110In Stock New Product	Mfr. Part No. DF2S20ASL,L3F Mouser Part No 757-DF2S20ASLL3F New Product	Toshiba	ESD Protection Diodes / TVS Diodes SOD-962 VRMW 15V 1uA TVS Diodes	Datasheet	9,110In Stock	Cut Tape $0.19 $0.128 $0.063 $0.052 Reel $0.023 View $0.039 $0.034 $0.032 $0.022	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE DFN1006-2A Vishay VESD16D1-HD1HG3-08 VESD16D1-HD1HG3-08 Vishay 1: $0.52 9,750In Stock 10,000Expected 19/11/2026 New Product	Mfr. Part No. VESD16D1-HD1HG3-08 Mouser Part No 78-VESD16D1-HD1H3-08 New Product	Vishay	ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE DFN1006-2A		9,750In Stock 10,000Expected 19/11/2026	Cut Tape $0.52 $0.233 $0.177 $0.148 Reel $0.074 View $0.13 $0.128 $0.067	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOD323 Vishay VLIN3333-02GHE3A08 VLIN3333-02GHE3A08 Vishay 1: $0.57 7,584In Stock New Product	Mfr. Part No. VLIN3333-02GHE3A08 Mouser Part No 78-VLIN3333-02HE3A08 New Product	Vishay	ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOD323	Datasheet	7,584In Stock	Cut Tape $0.57 $0.396 $0.194 $0.162 Reel $0.097 View $0.113 $0.092 $0.073	Min.: 1 Mult.: 1 : 3,000
Fuse Holder 3AG Inline W/ Red Leads 01500322.HXA Littelfuse 1: $12.12 3,752In Stock	Mfr. Part No. 01500322.HXA Mouser Part No 576-01500322.HXA	Littelfuse	Fuse Holder 3AG Inline W/ Red Leads Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	3,752In Stock	$12.12 $10.86 $9.96 $9.47 View $8.72 $7.66 $7.56	Min.: 1 Mult.: 1
Cartridge Fuses 250V 6.3A Time Lag (Slo-Blo) 021806.3MXP Littelfuse 1: $1.28 21,879In Stock	Mfr. Part No. 021806.3MXP Mouser Part No 576-021806.3MXP	Littelfuse	Cartridge Fuses 250V 6.3A Time Lag (Slo-Blo) Learn More about Littelfuse 5x20 fuseholders	Datasheet	21,879In Stock	$1.28 $1.20 $0.989 $0.721	Min.: 1 Mult.: 1
Cartridge Fuses 50A 500V NORMAL BLOW 0607050.UXTH500P Littelfuse 1: $17.46 2,630In Stock	Mfr. Part No. 0607050.UXTH500P Mouser Part No 576-0607050.UXTH500P	Littelfuse	Cartridge Fuses 50A 500V NORMAL BLOW Learn More about Littelfuse 607 cartridge fuses	Datasheet	2,630In Stock	$17.46 $14.48 $13.36 $11.07 View $10.20 $9.16 $9.00	Min.: 1 Mult.: 1
Automotive Fuses 58V 60A LP Jcase 0895060.U Littelfuse 1: $2.81 10,613In Stock	Mfr. Part No. 0895060.U Mouser Part No 576-0895060.U	Littelfuse	Automotive Fuses 58V 60A LP Jcase	Datasheet	10,613In Stock	$2.81 $2.34 $1.67 $1.47 View $1.38 $1.21 $1.20	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 5kW 51V 5% Uni-Directional 5.0SMDJ51A Littelfuse 1: $2.17 29,302In Stock	Mfr. Part No. 5.0SMDJ51A Mouser Part No 576-5.0SMDJ51A	Littelfuse	ESD Protection Diodes / TVS Diodes 5kW 51V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	29,302In Stock	Cut Tape $2.17 $1.59 $1.19 $1.07 View Reel $0.63 $0.86 $0.793 $0.63 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Fuse Holder Blok 30A 600V 2 Pole Screw Connector L60030C2SQ Littelfuse 1: $25.45 5,377In Stock	Mfr. Part No. L60030C2SQ Mouser Part No 576-L60030C2SQ	Littelfuse	Fuse Holder Blok 30A 600V 2 Pole Screw Connector Learn More about Littelfuse protection products for panels	Datasheet	5,377In Stock	$25.45 $19.73 $18.19 $16.00 View $14.75 $13.34 $13.14	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 66V 10KA LTKAK10-066C Littelfuse 1: $41.66 687In Stock	Mfr. Part No. LTKAK10-066C Mouser Part No 576-LTKAK10-066C	Littelfuse	ESD Protection Diodes / TVS Diodes 66V 10KA Learn More about Littelfuse ltkak6 ltkak10	Datasheet	687In Stock	Cut Tape $41.66 $32.52 $30.80 $27.54 Reel $27.54 MouseReel Available	Min.: 1 Mult.: 1 : 400
Varistors 4VAC 5.6VDC 0.3J 250 0pF 8.5 V 18V V2F105C150Y1FDP KYOCERA AVX 1: $1.44 82,261In Stock	Mfr. Part No. V2F105C150Y1FDP Mouser Part No 581-V2F105C150Y1FDP	KYOCERA AVX	Varistors 4VAC 5.6VDC 0.3J 250 0pF 8.5 V 18V Learn More about KYOCERA AVX avxtransguardvar	Datasheet	82,261In Stock	Cut Tape $1.44 $0.677 $0.602 $0.47 Reel $0.411 $0.373 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Varistors 620V 40KA MOV Disc Square 34mm 621KS34 YAGEO 1: $6.48 9,753In Stock	Mfr. Part No. 621KS34 Mouser Part No 603-621KS34	YAGEO	Varistors 620V 40KA MOV Disc Square 34mm Learn More about YAGEO mov overvoltage devices	Datasheet	9,753In Stock	$6.48 $4.98 $4.51 $3.87 View $3.77 $3.73 $3.72	Min.: 1 Mult.: 1
Circuit Breakers PTCB E1 24DC/4A NO 2909906 Phoenix Contact 1: $30.11 1,205In Stock	Mfr. Part No. 2909906 Mouser Part No 651-2909906	Phoenix Contact	Circuit Breakers PTCB E1 24DC/4A NO Learn More about Phoenix Contact ptcb circuit breakers	Datasheet	1,205In Stock	$30.11	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes P6SMB - A 160V P6SMB160A-Q Bourns 1: $0.99 119,948In Stock	Mfr. Part No. P6SMB160A-Q Mouser Part No 652-P6SMB160A-Q	Bourns	ESD Protection Diodes / TVS Diodes P6SMB - A 160V Learn More about Bourns p6smb q	Datasheet	119,948In Stock	Cut Tape $0.99 $0.619 $0.396 $0.295 Reel $0.205 View $0.239 $0.165 $0.132 $0.128 MouseReel Available	Min.: 1 Mult.: 1 : 3,000

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Circuit Protection

Types of Circuit Protection