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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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Types of Circuit Protection

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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.
Circuit Breakers TMC 71D 20A 1020052 Phoenix Contact 1: $22.65 1,031In Stock 48Expected 09/11/2026	Mfr. Part No. 1020052 Mouser Part No 651-1020052	Phoenix Contact	Circuit Breakers TMC 71D 20A Learn More about Phoenix Contact tmc 7 supplementary protectors	Datasheet	1,031In Stock 48Expected 09/11/2026	$22.65	Min.: 1 Mult.: 1
Circuit Breakers TMC 81C 05A 2907562 Phoenix Contact 1: $28.35 2,597In Stock	Mfr. Part No. 2907562 Mouser Part No 651-2907562	Phoenix Contact	Circuit Breakers TMC 81C 05A Learn More about Phoenix Contact TMC thermomagnetic circuit breakers	Datasheet	2,597In Stock	$28.35	Min.: 1 Mult.: 1
Surface Mount Fuses 20A 250V FAST ACTING SF-3812F2000T-2 Bourns 1: $3.80 9,323In Stock	Mfr. Part No. SF-3812F2000T-2 Mouser Part No 652-SF-3812F2000T-2	Bourns	Surface Mount Fuses 20A 250V FAST ACTING Learn More about Bourns sf 3812f t smd fuses	Datasheet	9,323In Stock	Cut Tape $3.80 $3.27 $2.21 $2.06 Reel $1.59 View $1.90 $1.79 $1.76 $1.55	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 22volts 5uA 84.4 Amps Bi-Dir SMLJ22CA Bourns 1: $1.85 33,738In Stock	Mfr. Part No. SMLJ22CA Mouser Part No 652-SMLJ22CA	Bourns	ESD Protection Diodes / TVS Diodes 22volts 5uA 84.4 Amps Bi-Dir Learn More about Bourns _smlj	Datasheet	33,738In Stock	Cut Tape $1.85 $1.18 $0.633 $0.576 View Reel $0.425 $0.488 $0.477 $0.425 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Circuit Breakers CIRCUIT BREAKER SWITCH 25A WH W68-X2Q12-25 TE Connectivity / P&B 1: $317.12 87In Stock	Mfr. Part No. W68-X2Q12-25 Mouser Part No 655-W68-X2Q12-25	TE Connectivity / P&B	Circuit Breakers CIRCUIT BREAKER SWITCH 25A WH	Datasheet	87In Stock	$317.12 $278.98 $186.21 $175.16 Quote Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes ESD PROTECTION ESD9101P2T5G onsemi 1: $0.35 325,420In Stock	Mfr. Part No. ESD9101P2T5G Mouser Part No 863-ESD9101P2T5G	onsemi	ESD Protection Diodes / TVS Diodes ESD PROTECTION	Datasheet	325,420In Stock	Cut Tape $0.35 $0.154 $0.134 $0.099 View Reel $0.055 $0.085 $0.074 $0.06 $0.055 MouseReel Available	Min.: 1 Mult.: 1 : 8,000
ESD Protection Diodes / TVS Diodes RailClamp 8-Line 5V 0.6pF 5A SLP2611N9T RCLAMP7528T.TNT Semtech 1: $2.09 29,601In Stock	Mfr. Part No. RCLAMP7528T.TNT Mouser Part No 947-RCLAMP7528T.TNT	Semtech	ESD Protection Diodes / TVS Diodes RailClamp 8-Line 5V 0.6pF 5A SLP2611N9T Learn More about Semtech tvs esd suppressors		29,601In Stock	Cut Tape $2.09 $1.36 $1.03 $0.862 View Reel $0.524 $0.719 $0.659 $0.621 $0.58 $0.524 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes TVS, 5V, BI, SOD-323, 3K T&R SD24C.TCT Semtech 1: $1.43 329,252In Stock	Mfr. Part No. SD24C.TCT Mouser Part No 947-SD24C.TCT	Semtech	ESD Protection Diodes / TVS Diodes TVS, 5V, BI, SOD-323, 3K T&R Learn More about Semtech tvs esd suppressors	Datasheet	329,252In Stock	Cut Tape $1.43 $0.901 $0.671 $0.541 Reel $0.34 View $0.419 $0.393 $0.327 $0.316 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes LOW CAP TVS & TELCOM INTERFACE TCLAMP2502N.TCT Semtech 1: $5.18 19,230In Stock	Mfr. Part No. TCLAMP2502N.TCT Mouser Part No 947-TCLAMP2502N.TCT	Semtech	ESD Protection Diodes / TVS Diodes LOW CAP TVS & TELCOM INTERFACE Learn More about Semtech tclamp tvs arrays	Datasheet	19,230In Stock	Cut Tape $5.18 $2.75 $2.50 $2.19 Reel $2.04 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Connectorised Surge Protectors Type N F/F In/Out Bulkhead Coax RF Surge Protector, DC - 7GHz and 3GHz - 4GHz, DC Pass, 90W, IP67, 20kA, Gas Discharge Tube, BiDirect PE73SP1038 Pasternack 1: $129.50 6In Stock New Product	Mfr. Part No. PE73SP1038 Mouser Part No 28-PE73SP1038 New Product	Pasternack	Connectorised Surge Protectors Type N F/F In/Out Bulkhead Coax RF Surge Protector, DC - 7GHz and 3GHz - 4GHz, DC Pass, 90W, IP67, 20kA, Gas Discharge Tube, BiDirect Learn More about Pasternack rf coaxial lightning surge protectors	Datasheet	6In Stock	$129.50 $114.65 $113.61 $111.52 View $108.19 Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323 VCAN36C2-03GHE3A08 Vishay 1: $0.59 14,930In Stock New Product	Mfr. Part No. VCAN36C2-03GHE3A08 Mouser Part No 78-VCAN36C2-03HE3A08 New Product	Vishay	ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323	Datasheet	14,930In Stock	Cut Tape $0.59 $0.368 $0.235 $0.175 Reel $0.122 View $0.142 $0.12 $0.102 $0.087	Min.: 1 Mult.: 1 : 3,000
Surface Mount Fuses FUSE 32V HIGH I2T 0603 TL 3A 0408003.WR Littelfuse 1: $1.58 4,250In Stock	Mfr. Part No. 0408003.WR Mouser Part No 576-0408003.WR	Littelfuse	Surface Mount Fuses FUSE 32V HIGH I2T 0603 TL 3A Learn More about Littelfuse 408 series fuses	Datasheet	4,250In Stock	Cut Tape $1.58 $1.41 $1.32 $1.09 View Reel $0.644 $0.92 $0.886 $0.763 $0.703 $0.644 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1V 12A 30kV SOD882 Bi-dir TVS SP0115-01ETG Littelfuse 1: $0.78 12,149In Stock	Mfr. Part No. SP0115-01ETG Mouser Part No 576-SP0115-01ETG	Littelfuse	ESD Protection Diodes / TVS Diodes 1V 12A 30kV SOD882 Bi-dir TVS Learn More about Littelfuse sp0115 tvs diodes	Datasheet	12,149In Stock	Cut Tape $0.78 $0.354 $0.312 $0.237 Reel $0.14 View $0.222 $0.204 $0.199 $0.127 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes Zen TVS 5000W 24V Bi DO-214AB TR13 SZ5KASMC24CAT3G Littelfuse 1: $3.99 6,454In Stock	Mfr. Part No. SZ5KASMC24CAT3G Mouser Part No 576-SZ5KASMC24CAT3G	Littelfuse	ESD Protection Diodes / TVS Diodes Zen TVS 5000W 24V Bi DO-214AB TR13 Learn More about Littelfuse sz5kasmc tvs diodes	Datasheet	6,454In Stock	Cut Tape $3.99 $2.61 $2.16 $1.87 View Reel $1.49 $1.58 $1.49 $1.49 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes Zen TVS 5000W 36V Bi DO-214AB TR13 SZ5KASMC36CAT3G Littelfuse 1: $3.99 4,658In Stock	Mfr. Part No. SZ5KASMC36CAT3G Mouser Part No 576-SZ5KASMC36CAT3G	Littelfuse	ESD Protection Diodes / TVS Diodes Zen TVS 5000W 36V Bi DO-214AB TR13 Learn More about Littelfuse sz5kasmc tvs diodes	Datasheet	4,658In Stock	Cut Tape $3.99 $2.61 $2.16 $1.87 Reel $1.49 View $1.58 $1.49 $1.45 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS TP5.0SMDJ110A Littelfuse 1: $5.46 5,481In Stock	Mfr. Part No. TP5.0SMDJ110A Mouser Part No 576-TP5.0SMDJ110A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS Learn More about Littelfuse tp5 0smdj tvs diodes	Datasheet	5,481In 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 10 dia Power NTC 15ohm Y kink bulk BN-LG10Y150MYB Bourns 1: $0.41 15,058In Stock	Mfr. Part No. BN-LG10Y150MYB Mouser Part No 652-BN-LG10Y150MYB	Bourns	NTC (Negative Temperature Coefficient) Thermistors 10 dia Power NTC 15ohm Y kink bulk Learn More about Bourns bn powrtherm thermistors	Datasheet	15,058In Stock	$0.41 $0.368 $0.322 $0.282 View $0.264 $0.239 $0.229 $0.226	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 120ohm Y kink bulk BN-LG20Y121MYB Bourns 1: $1.58 4,492In Stock	Mfr. Part No. BN-LG20Y121MYB Mouser Part No 652-BN-LG20Y121MYB	Bourns	NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 120ohm Y kink bulk Learn More about Bourns bn powrtherm thermistors	Datasheet	4,492In Stock	$1.58 $0.996 $0.958 $0.854 View $0.813 $0.793 $0.712 $0.546 $0.532	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 600W,16V 5%, DFN3820A TVS 6DFN16A-M3/I Vishay Semiconductors 1: $0.76 27,820In Stock	Mfr. Part No. 6DFN16A-M3/I Mouser Part No 78-6DFN16A-M3/I	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W,16V 5%, DFN3820A TVS Learn More about Vishay Semiconductors vishay 6dfn12a to 6dfn51a tvs diodes	Datasheet	27,820In Stock	Cut Tape $0.76 $0.346 $0.305 $0.232 Reel $0.165 View $0.213 $0.209 $0.152	Min.: 1 Mult.: 1 : 14,000
Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 2GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 10kA, Filter AL-LSXM-ME PolyPhaser 1: $72.22 16In Stock New Product	Mfr. Part No. AL-LSXM-ME Mouser Part No 44-AL-LSXM-ME New Product	PolyPhaser	Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 2GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 10kA, Filter Learn More about PolyPhaser 2ghz 6ghz surge protectors	Datasheet	16In Stock	$72.22 $68.37	Min.: 1 Mult.: 1
Circuit Breakers Type BR Breaker 20A/2 Pole 120/240V 10K BR220 Eaton Electrical 1: $162.05 3In Stock New Product	Mfr. Part No. BR220 Mouser Part No 504-BR220 New Product	Eaton Electrical	Circuit Breakers Type BR Breaker 20A/2 Pole 120/240V 10K	Datasheet	3In Stock	$162.05 $134.37 $125.21 $103.12 View $95.79 Quote	Min.: 1 Mult.: 1
Circuit Breakers EG 3P 80A adj therm 18kA CB w/end cap GEB3080AFM Eaton Electrical 1: $1,171.71 1In Stock New Product	Mfr. Part No. GEB3080AFM Mouser Part No 504-GEB3080AFM New Product	Eaton Electrical	Circuit Breakers EG 3P 80A adj therm 18kA CB w/end cap	Datasheet	1In Stock	$1,171.71	Min.: 1 Mult.: 1
Circuit Breakers PDG2,3P,20A,35KA/480V,FXFXTMTU PDG23G0020TFFN Eaton Electrical 1: $674.16 3In Stock New Product	Mfr. Part No. PDG23G0020TFFN Mouser Part No 504-PDG23G0020TFFN New Product	Eaton Electrical	Circuit Breakers PDG2,3P,20A,35KA/480V,FXFXTMTU	Datasheet	3In Stock	$674.16 $531.40 $489.84 View Quote	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors Glass Encapsulated NTC Thermistor, Probe, Surface Mount 15K4 20012616-00 TE Connectivity 1: $382.17 1In Stock New Product	Mfr. Part No. 20012616-00 Mouser Part No 571-20012616-00 New Product	TE Connectivity	NTC (Negative Temperature Coefficient) Thermistors Glass Encapsulated NTC Thermistor, Probe, Surface Mount 15K4 Learn More about TE Connectivity te surface mount temperature sensors	Datasheet	1In Stock	$382.17 $306.69 $303.91 View Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes Zen TVS 600W 18V BI SOD-123FL TR13 SZSMF6L18CAT3G Littelfuse 1: $1.02 3,151In Stock New Product	Mfr. Part No. SZSMF6L18CAT3G Mouser Part No 576-SZSMF6L18CAT3G New Product	Littelfuse	ESD Protection Diodes / TVS Diodes Zen TVS 600W 18V BI SOD-123FL TR13 Learn More about Littelfuse szsmf6l tvs diodes		3,151In Stock	Cut Tape $1.02 $0.644 $0.411 $0.307 Reel $0.18 View $0.248 $0.214 $0.153 MouseReel Available	Min.: 1 Mult.: 1 : 5,000

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Circuit Protection

Types of Circuit Protection