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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 (EUR) Filter the results in the table by unit price based on your quantity.	Qty.
NTC (Negative Temperature Coefficient) Thermistors 1K, +/-0.2C: 0C-70C, B3977,Teflon insulated wire TTS-1KC3-BZ CTS Electronic Components 1: 2,07 € 500In Stock New Product	Mfr. Part No. TTS-1KC3-BZ Mouser Part No 774-TTS1KC3BZ New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors 1K, +/-0.2C: 0C-70C, B3977,Teflon insulated wire Learn More about CTS Electronic Components cts tt s thermistors	Datasheet	500In Stock	2,07 € 1,79 € 1,69 € 1,54 € View 1,53 € 1,29 € 1,24 € 1,19 €	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 30K, +/-0.2C: 0C-70C, B3942, uninsulated wire TTS-30KC5-BG CTS Electronic Components 1: 1,93 € 500In Stock New Product	Mfr. Part No. TTS-30KC5-BG Mouser Part No 774-TTS30KC5BG New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors 30K, +/-0.2C: 0C-70C, B3942, uninsulated wire Learn More about CTS Electronic Components cts tt s thermistors	Datasheet	500In Stock	1,93 € 1,66 € 1,58 € 1,44 € View 1,42 € 1,20 € 1,15 € 1,09 €	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 50K, +/-0.2C: 0C-70C, B4260, uninsulated wire TTS-50KC6-BG CTS Electronic Components 1: 1,63 € 395In Stock 105Expected 11/12/2026 New Product	Mfr. Part No. TTS-50KC6-BG Mouser Part No 774-TTS50KC6BG New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors 50K, +/-0.2C: 0C-70C, B4260, uninsulated wire Learn More about CTS Electronic Components cts tt s thermistors	Datasheet	395In Stock 105Expected 11/12/2026	1,63 € 1,43 € 1,37 € 1,26 € View 1,07 € 1,05 €	Min.: 1 Mult.: 1
Thermal Cut-offs TCO, High Current, SMD, 90C, Self Hold AEC-Q200 SD90ABB Bourns 1: 1,69 € 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 1,69 € 1,60 € 1,51 € 1,44 € View Reel 0,989 € 1,38 € 1,30 € 1,16 € 1,12 € 0,989 € MouseReel Available	Min.: 1 Mult.: 1 : 4.000
NTC (Negative Temperature Coefficient) Thermistors 30K, +/-0.2C: 0C-70C, B4260, uninsulated wire TTS-30KC6-BG CTS Electronic Components 1: 1,93 € 500In Stock New Product	Mfr. Part No. TTS-30KC6-BG Mouser Part No 774-TTS30KC6BG New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors 30K, +/-0.2C: 0C-70C, B4260, uninsulated wire Learn More about CTS Electronic Components cts tt s thermistors	Datasheet	500In Stock	1,93 € 1,66 € 1,58 € 1,44 € View 1,42 € 1,20 € 1,15 € 1,09 €	Min.: 1 Mult.: 1
Circuit Breaker Accessories 250A 3P Thermal Mag Fixed/Adj Trip Unit Eaton Electrical JT3250FA JT3250FA Eaton Electrical 1: 1.550,68 € 1In Stock New Product	Mfr. Part No. JT3250FA Mouser Part No 504-JT3250FA New Product	Eaton Electrical	Circuit Breaker Accessories 250A 3P Thermal Mag Fixed/Adj Trip Unit		1In Stock	1.550,68 €	Min.: 1 Mult.: 1
Circuit Breaker Accessories 3 POLE C-H UL 400A Eaton Electrical ELLBN3400W ELLBN3400W Eaton Electrical 1: 2.780,39 € 1In Stock New Product	Mfr. Part No. ELLBN3400W Mouser Part No 504-ELLBN3400W New Product	Eaton Electrical	Circuit Breaker Accessories 3 POLE C-H UL 400A		1In Stock	2.780,39 €	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 20K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire TTS-20KC6-BZ CTS Electronic Components 1: 2,07 € 461In Stock New Product	Mfr. Part No. TTS-20KC6-BZ Mouser Part No 774-TTS20KC6BZ New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors 20K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire Learn More about CTS Electronic Components cts tt s thermistors	Datasheet	461In Stock	2,07 € 1,79 € 1,69 € 1,54 € View 1,53 € 1,29 € 1,24 € 1,19 €	Min.: 1 Mult.: 1
Circuit Breakers 2P 250AMP HMCP Eaton Electrical HM2P250J5 HM2P250J5 Eaton Electrical 1: 2.055,31 € 1In Stock New Product	Mfr. Part No. HM2P250J5 Mouser Part No 504-HM2P250J5 New Product	Eaton Electrical	Circuit Breakers 2P 250AMP HMCP	Datasheet	1In Stock	2.055,31 €	Min.: 1 Mult.: 1
Circuit Breaker Accessories LATCH CHECK SWITCH Eaton Electrical 699B147G01 699B147G01 Eaton Electrical 1: 1.054,64 € 5In Stock New Product	Mfr. Part No. 699B147G01 Mouser Part No 504-699B147G01 New Product	Eaton Electrical	Circuit Breaker Accessories LATCH CHECK SWITCH	Datasheet	5In Stock	1.054,64 €	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: 183,13 € 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	183,13 € 175,39 €	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: 125,84 € 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	125,84 € 119,36 €	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: 326,94 € 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	326,94 € 313,11 €	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: 91,79 € 10In Stock 8Expected 10/26/2026 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 8Expected 10/26/2026	91,79 € 87,06 €	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: 152,50 € 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	152,50 € 144,64 €	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: 169,57 € 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	169,57 € 162,39 €	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: 217,06 € 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	217,06 € 207,87 €	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: 168,21 € 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	168,21 € 161,10 €	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: 188,56 € 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	188,56 € 180,58 €	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: 154,65 € 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	154,65 € 148,10 €	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: 91,35 € 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	91,35 € 76,28 € 70,89 €	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: 109,62 € 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	109,62 € 93,18 € 88,00 € 79,80 € View 76,56 € 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: 89,29 € 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	89,29 € 74,42 € 69,30 €	Min.: 1 Mult.: 1
Circuit Breakers Type BR Breaker 100A/2 Pole 120/240V 10K BR2100 Eaton Electrical 1: 386,60 € 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	386,60 € 320,26 € 295,20 € 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: 89,26 € 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	89,26 € 76,91 € 70,41 € 55,35 € View 55,32 € Quote	Min.: 1 Mult.: 1

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