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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.
NTC (Negative Temperature Coefficient) Thermistors ESA PROBE-RTD PT1000 3000mm ENG MODEL 10219128-03 TE Connectivity 1: $662.49 2In Stock New Product	Mfr. Part No. 10219128-03 Mouser Part No 571-10219128-03 New Product	TE Connectivity	NTC (Negative Temperature Coefficient) Thermistors ESA PROBE-RTD PT1000 3000mm ENG MODEL Learn More about TE Connectivity te surface mount temperature sensors	Datasheet	2In Stock	$662.49 $505.16 $500.59 View Quote	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC Mini Ni 0.4 ld 10K 1% blk 0.4e/1e A NTCLE213E3103FHB0A Vishay / BC Components 1: $1.93 422In Stock 1,500Expected 2027/01/19 New Product	Mfr. Part No. NTCLE213E3103FHB0A Mouser Part No 594-NTCLE213E313FHB New Product	Vishay / BC Components	NTC (Negative Temperature Coefficient) Thermistors NTC Mini Ni 0.4 ld 10K 1% blk 0.4e/1e A	Datasheet	422In Stock 1,500Expected 2027/01/19	$1.93 $1.45 $1.16 $1.09 View $1.06 $0.89 $0.82 $0.755	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC Mini Ni 0.4 ld 12K 2% blk 0.4e/1e A NTCLE213E3123GMB0A Vishay / BC Components 1: $1.17 1,899In Stock New Product	Mfr. Part No. NTCLE213E3123GMB0A Mouser Part No 594-NTCLE23E323GMB New Product	Vishay / BC Components	NTC (Negative Temperature Coefficient) Thermistors NTC Mini Ni 0.4 ld 12K 2% blk 0.4e/1e A	Datasheet	1,899In Stock	$1.17 $0.877 $0.702 $0.661 View $0.644 $0.54 $0.508 $0.466	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 15 V Max., 25uJ, 20kA, Hybrid, Bracket Down, Hole Mount CGXJ+15NFNF-A PolyPhaser 1: $212.98 5In Stock New Product	Mfr. Part No. CGXJ+15NFNF-A Mouser Part No 44-CGXJ+15NFNF-A New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 15 V Max., 25uJ, 20kA, Hybrid, Bracket Down, Hole Mount Learn More about PolyPhaser 400mhz 2 5ghz surge protectors	Datasheet	5In Stock	$212.98 $203.98	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, 1.2GHz - 1.6GHz, 10W, IP67, 6 V Max., 175uJ, 15kA, Avalanche Diode GPS+06NFSF PolyPhaser 1: $146.35 3In Stock New Product	Mfr. Part No. GPS+06NFSF Mouser Part No 44-GPS+06NFSF New Product	PolyPhaser	Connectorised Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, 1.2GHz - 1.6GHz, 10W, IP67, 6 V Max., 175uJ, 15kA, Avalanche Diode Learn More about PolyPhaser 1 5mhz 6ghz surge protectors	Datasheet	3In Stock	$146.35 $138.82	Min.: 1 Mult.: 1
Connectorised Surge Protectors HEMP Tested Type N F/F Bulkhead Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid HT-RO-E3PM-DCP PolyPhaser 1: $380.23 1In Stock New Product	Mfr. Part No. HT-RO-E3PM-DCP Mouser Part No 44-HT-RO-E3PM-DCP New Product	PolyPhaser	Connectorised Surge Protectors HEMP Tested Type N F/F Bulkhead Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid	Datasheet	1In Stock	$380.23 $364.15	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N M/F Bulkhead Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 500W, 800uJ, 50kA, Blocking Cap, Hole Mount IS-B50HN-C2-MA PolyPhaser 1: $106.75 10In Stock 8On Order New Product	Mfr. Part No. IS-B50HN-C2-MA Mouser Part No 44-IS-B50HN-C2-MA New Product	PolyPhaser	Connectorised Surge Protectors Type N M/F Bulkhead Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 500W, 800uJ, 50kA, Blocking Cap, Hole Mount Learn More about PolyPhaser 125mhz 1ghz type n surge protectors	Datasheet	10In Stock 8On Order	$106.75 $101.25	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 500W, 25uJ, 50kA, Blocking Cap, Bracket Up, Hole Mount IS-NEMP-C0-MA PolyPhaser 1: $177.36 5In Stock New Product	Mfr. Part No. IS-NEMP-C0-MA Mouser Part No 44-IS-NEMP-C0-MA New Product	PolyPhaser	Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 500W, 25uJ, 50kA, Blocking Cap, Bracket Up, Hole Mount Learn More about PolyPhaser 1 5mhz 6ghz surge protectors	Datasheet	5In Stock	$177.36 $168.22	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Gold-Plated Pins TSX-NFM-G PolyPhaser 1: $197.21 1In Stock New Product	Mfr. Part No. TSX-NFM-G Mouser Part No 44-TSX-NFM-G New Product	PolyPhaser	Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Gold-Plated Pins	Datasheet	1In Stock	$197.21 $188.86	Min.: 1 Mult.: 1
Connectorised Surge Protectors 4.3-10 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 500W, IP67, 80 V Max., 1mJ, 40kA, Filter, Low PIM TSXDC-4310FM PolyPhaser 1: $252.44 5In Stock New Product	Mfr. Part No. TSXDC-4310FM Mouser Part No 44-TSXDC-4310FM New Product	PolyPhaser	Connectorised Surge Protectors 4.3-10 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 500W, IP67, 80 V Max., 1mJ, 40kA, Filter, Low PIM Learn More about PolyPhaser 650mhz 2 7ghz surge protectors	Datasheet	5In Stock	$252.44 $241.75	Min.: 1 Mult.: 1
Connectorised Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 300MHz - 1.2GHz, DC Block, 2,500W, IP67, .005uJ, 40kA, Filter, Low PIM TUSX-DFM PolyPhaser 1: $195.63 5In Stock New Product	Mfr. Part No. TUSX-DFM Mouser Part No 44-TUSX-DFM New Product	PolyPhaser	Connectorised Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 300MHz - 1.2GHz, DC Block, 2,500W, IP67, .005uJ, 40kA, Filter, Low PIM Learn More about PolyPhaser tsx tusx rf surge protectors	Datasheet	5In Stock	$195.63 $187.36	Min.: 1 Mult.: 1
Connectorised Surge Protectors 4.3-10 M/F Coaxial RF Surge Protector, 100MHz - 520MHz, DC Block, 750W, 20kA, Bracket Up VHF50B43-MA-BU PolyPhaser 1: $219.30 1In Stock New Product	Mfr. Part No. VHF50B43-MA-BU Mouser Part No 44-VHF50B43-MA-BU New Product	PolyPhaser	Connectorised Surge Protectors 4.3-10 M/F Coaxial RF Surge Protector, 100MHz - 520MHz, DC Block, 750W, 20kA, Bracket Up	Datasheet	1In Stock	$219.30 $210.01	Min.: 1 Mult.: 1
Connectorised Surge Protectors 7/16 M/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount VHF50HD-MA PolyPhaser 1: $179.86 7In Stock New Product	Mfr. Part No. VHF50HD-MA Mouser Part No 44-VHF50HD-MA New Product	PolyPhaser	Connectorised Surge Protectors 7/16 M/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount Learn More about PolyPhaser 100mhz 512mhz surge protectors	Datasheet	7In Stock	$179.86 $172.24	Min.: 1 Mult.: 1
Circuit Breakers 508,DM,24VDC,CL,1-2-4,ATX, REX22D-TD2-100-DC24V-1A/2A/4A-E E-T-A 1: $106.24 4In Stock New Product	Mfr. Part No. REX22D-TD2-100-DC24V-1A/2A/4A-E Mouser Part No 457-REX22DTD2124E New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,1-2-4,ATX, Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	4In Stock	$106.24 $88.71 $82.45	Min.: 1 Mult.: 1
Circuit Breakers 508,DM,24VDC,CL,6-8-10,ATX REX22D-TD2-100-DC24V-6A/8A/10A-E E-T-A 1: $127.49 7In Stock New Product	Mfr. Part No. REX22D-TD2-100-DC24V-6A/8A/10A-E Mouser Part No 457-REX22DTD26810E New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,6-8-10,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	7In Stock	$127.49 $108.37 $102.34 $92.81 View $89.04 Quote	Min.: 1 Mult.: 1
Circuit Breakers 508,DM,24VDC,CL,2CH,1-10A,ATX REX22D-TE2-100-DC24V-1A-10A-E E-T-A 1: $103.84 4In Stock New Product	Mfr. Part No. REX22D-TE2-100-DC24V-1A-10A-E Mouser Part No 457-REX22DTE21A10AE New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,2CH,1-10A,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	4In Stock	$103.84 $86.55 $80.60	Min.: 1 Mult.: 1
Circuit Breakers Type BR Breaker 100A/2 Pole 120/240V 10K BR2100 Eaton Electrical 1: $449.62 3In Stock New Product	Mfr. Part No. BR2100 Mouser Part No 504-BR2100 New Product	Eaton Electrical	Circuit Breakers Type BR Breaker 100A/2 Pole 120/240V 10K	Datasheet	3In Stock	$449.62 $372.46 $343.32 View Quote	Min.: 1 Mult.: 1
Connectorised Surge Protectors Indoor 10Gb/s (Cat6A) POE Surge Protective Device with Mounting Kit MJ8-POE-C6A/G/KF Citel 1: $103.81 14In Stock New Product	Mfr. Part No. MJ8-POE-C6A/G/KF Mouser Part No 703-MJ8-POE-C6A/G/KF New Product	Citel	Connectorised Surge Protectors Indoor 10Gb/s (Cat6A) POE Surge Protective Device with Mounting Kit	Datasheet	14In Stock	$103.81 $89.45 $81.89 $64.37 View $64.34 Quote	Min.: 1 Mult.: 1
Thermal Cut-offs TCO, High Current, SMD, 90C, Self Hold AEC-Q200 SD90ABB Bourns 1: $1.97 14,922In Stock	Mfr. Part No. SD90ABB Mouser Part No 652-SD90ABB	Bourns	Thermal Cut-offs TCO, High Current, SMD, 90C, Self Hold AEC-Q200 Learn More about Bourns ad sd miniature tco devices	Datasheet	14,922In Stock	Cut Tape $1.97 $1.86 $1.76 $1.67 View Reel $1.13 $1.60 $1.47 $1.34 $1.30 $1.13 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes 400W,30V 5%,BIDIR,SMA TVS P4SMA30CAHE3_A/I Vishay Semiconductors 1: $0.80 17,246In Stock	Mfr. Part No. P4SMA30CAHE3_A/I Mouser Part No 78-P4SMA30CAHE3_A/I	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,30V 5%,BIDIR,SMA TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	17,246In Stock	Cut Tape $0.80 $0.497 $0.326 $0.245 Reel $0.167 View $0.223 $0.204 $0.199 $0.155	Min.: 1 Mult.: 1 : 7,500
Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, GDT technology up to 2.5 GHz 3402.26.0002 HUBER+SUHNER 1: $582.50 50In Stock	Mfr. Part No. 3402.26.0002 Mouser Part No 455-3402260002	HUBER+SUHNER	Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, GDT technology up to 2.5 GHz Learn More about HUBER+SUHNER huber suhner surge suppression solutions	Datasheet	50In Stock	$582.50 $349.13 Quote Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial 30KPA270CA Littelfuse 1: $31.81 761In Stock	Mfr. Part No. 30KPA270CA Mouser Part No 576-30KPA270CA	Littelfuse	ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial Learn More about Littelfuse tvsdiodes	Datasheet	761In Stock	Cut Tape $31.81 $25.18 $24.39 Reel $24.39	Min.: 1 Mult.: 1 : 800
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 36A 5mA 2uA SM8S36A Littelfuse 1: $4.15 1,182In Stock	Mfr. Part No. SM8S36A Mouser Part No 576-SM8S36A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 36A 5mA 2uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	1,182In Stock	Cut Tape $4.15 $2.72 $2.28 $1.97 Reel $1.52 $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 500
Fuse Holder FB1 FUSE BLOCK 110A FUSE FB1-110 Bourns 1: $75.83 117In Stock	Mfr. Part No. FB1-110 Mouser Part No 652-FB1-110	Bourns	Fuse Holder FB1 FUSE BLOCK 110A FUSE	Datasheet	117In Stock	$75.83 $62.90 $58.01 $48.01 $45.87	Min.: 1 Mult.: 1
Thermal Cut-offs THERMAL PROTECTOR RP-1B Sensata Technologies 1: $34.89 358In Stock New Product	Mfr. Part No. RP-1B Mouser Part No 682-RP-1B New Product	Sensata Technologies	Thermal Cut-offs THERMAL PROTECTOR Learn More about Sensata Technologies sensata rp thermal protectors	Datasheet	358In Stock	$34.89	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection