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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 20K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire TTS-20KC6-BZ CTS Electronic Components 1: $2.41 383In Stock 114Expected 2026/11/12 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	383In Stock 114Expected 2026/11/12	$2.41 $2.08 $1.97 $1.79 View $1.78 $1.50 $1.44 $1.38	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 30K, +/-0.2C: 0C-70C, B3942, uninsulated wire TTS-30KC5-BG CTS Electronic Components 1: $2.24 249In Stock 251Expected 2026/11/12 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	249In Stock 251Expected 2026/11/12	$2.24 $1.93 $1.84 $1.67 View $1.65 $1.40 $1.34 $1.27	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes AUTO TVS DIODE, SMAJE FAMILY, 33Vdc, Uni SMAJE33AH Eaton Electronics 1: $0.45 2,984In Stock New Product	Mfr. Part No. SMAJE33AH Mouser Part No 504-MAJE33AH New Product	Eaton Electronics	ESD Protection Diodes / TVS Diodes AUTO TVS DIODE, SMAJE FAMILY, 33Vdc, Uni Learn More about Eaton Electronics eaton smajxxh auto tvs diodes	Datasheet	2,984In Stock	Cut Tape $0.45 $0.29 $0.171 $0.129 Reel $0.087 View $0.113 $0.097 $0.081	Min.: 1 Mult.: 1 : 5,000
Circuit Breakers C Series 120A DC Hydraulic/Magnetic Circuit Breaker, UL489A, Black Handle CA1-P0-D6-812-321-MT Carling Technologies 1: $65.76 4In Stock New Product	Mfr. Part No. CA1-P0-D6-812-321-MT Mouser Part No 691-CA1-P0D6812321MT New Product	Carling Technologies	Circuit Breakers C Series 120A DC Hydraulic/Magnetic Circuit Breaker, UL489A, Black Handle	Datasheet	4In Stock	$65.76 $54.54 $50.32 $41.65 View $38.76 $35.98	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 1K, +/-0.2C: 0C-70C, B3977,Teflon insulated wire TTS-1KC3-BZ CTS Electronic Components 1: $2.41 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	$2.41 $2.08 $1.97 $1.79 View $1.78 $1.50 $1.44 $1.38	Min.: 1 Mult.: 1
Circuit Breaker Accessories 250A 3P Thermal Mag Fixed/Adj Trip Unit Eaton Electrical JT3250FA JT3250FA Eaton Electrical 1: $1,803.44 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	$1,803.44	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 50K, +/-0.2C: 0C-70C, B4260, uninsulated wire TTS-50KC6-BG CTS Electronic Components 1: $1.90 395In Stock 105Expected 2026/11/12 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 2026/11/12	$1.90 $1.66 $1.59 $1.47 View $1.24 $1.22	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 50K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire TTS-50KC6-BZ CTS Electronic Components 1: $2.41 250In Stock New Product	Mfr. Part No. TTS-50KC6-BZ Mouser Part No 774-TTS50KC6BZ New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors 50K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire Learn More about CTS Electronic Components cts tt s thermistors	Datasheet	250In Stock	$2.41 $2.08 $1.97 $1.79 View $1.78 $1.50 $1.44 $1.38	Min.: 1 Mult.: 1
Circuit Breakers 2P 250AMP HMCP Eaton Electrical HM2P250J5 HM2P250J5 Eaton Electrical 1: $2,390.33 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	$2,390.33	Min.: 1 Mult.: 1
Circuit Breaker Accessories LATCH CHECK SWITCH Eaton Electrical 699B147G01 699B147G01 Eaton Electrical 1: $1,226.55 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	$1,226.55	Min.: 1 Mult.: 1
Circuit Breaker Accessories 508, DM, 20A, Distribution Module, Load, ATEX PM12-T01-00-LOAD-20A-E E-T-A 1: $48.54 7In Stock New Product	Mfr. Part No. PM12-T01-00-LOAD-20A-E Mouser Part No 457-PM12T100LOAD2AE New Product	E-T-A	Circuit Breaker Accessories 508, DM, 20A, Distribution Module, Load, ATEX	Datasheet	7In Stock	$48.54 $40.26 $37.13 $30.04 View $29.78 $28.69 Quote	Min.: 1 Mult.: 1
Circuit Breakers 508,DM,24VDC,CL,20A,ATX REX22D-TA1-100-DC24V-20A-E E-T-A 1: $87.57 11In Stock New Product	Mfr. Part No. REX22D-TA1-100-DC24V-20A-E Mouser Part No 457-REX22DTA120E New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,20A,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	11In Stock	$87.57 $72.08 $71.02 $66.99	Min.: 1 Mult.: 1
Circuit Breakers CH GFCI BREAKER, 30A, PIGTAIL, 10KAIC CHFN130GF Eaton Electrical 1: $482.62 1In Stock New Product	Mfr. Part No. CHFN130GF Mouser Part No 504-CHFN130GF New Product	Eaton Electrical	Circuit Breakers CH GFCI BREAKER, 30A, PIGTAIL, 10KAIC		1In Stock	$482.62 $423.59 $385.20 View Quote	Min.: 1 Mult.: 1
Circuit Breakers FAZ UL 1077 2P 2.5A D CURVE Eaton Electrical FAZ-D2.5/2 FAZ-D2.5/2 Eaton Electrical 1: $431.97 1In Stock New Product	Mfr. Part No. FAZ-D2.5/2 Mouser Part No 504-FAZ-D2.5/2 New Product	Eaton Electrical	Circuit Breakers FAZ UL 1077 2P 2.5A D CURVE	Datasheet	1In Stock	$431.97 $357.84 $329.79	Min.: 1 Mult.: 1
Circuit Breakers HFD-DC BREAKER - LINE & LOAD TERMINALS HFDDC1060L Eaton Electrical 1: $810.13 1In Stock New Product	Mfr. Part No. HFDDC1060L Mouser Part No 504-HFDDC1060L New Product	Eaton Electrical	Circuit Breakers HFD-DC BREAKER - LINE & LOAD TERMINALS	Datasheet	1In Stock	$810.13 $651.15 $622.11 View Quote	Min.: 1 Mult.: 1
Circuit Breakers UL/CSA/IEC SLASH RTD TM MCCB 80A 3P NZMN1-A80-NA Eaton Electrical 1: $1,601.01 2In Stock New Product	Mfr. Part No. NZMN1-A80-NA Mouser Part No 504-NZMN1-A80-NA New Product	Eaton Electrical	Circuit Breakers UL/CSA/IEC SLASH RTD TM MCCB 80A 3P	Datasheet	2In Stock	$1,601.01	Min.: 1 Mult.: 1
Circuit Breakers PDD2,3P, 100A, 100KA/240V, 50C FXFXTMTU PDD23M0100VFFL Eaton Electrical 1: $907.36 1In Stock New Product	Mfr. Part No. PDD23M0100VFFL Mouser Part No 504-PDD23M0100VFFL New Product	Eaton Electrical	Circuit Breakers PDD2,3P, 100A, 100KA/240V, 50C FXFXTMTU	Datasheet	1In Stock	$907.36 $751.67 $693.02 View Quote	Min.: 1 Mult.: 1
Circuit Breakers PDG2,3P,35A,25KA/480V,FXFXTMTU PDG23F0035TFFJ Eaton Electrical 1: $776.40 2In Stock New Product	Mfr. Part No. PDG23F0035TFFJ Mouser Part No 504-PDG23F0035TFFJ New Product	Eaton Electrical	Circuit Breakers PDG2,3P,35A,25KA/480V,FXFXTMTU	Datasheet	2In Stock	$776.40 $611.98 $564.22 View Quote	Min.: 1 Mult.: 1
Circuit Breakers QBHW2015, 2P, 15A 22kAIC, 240V QBHW2015HT Eaton Electrical 1: $991.12 1In Stock 2Expected 2026/10/13 New Product	Mfr. Part No. QBHW2015HT Mouser Part No 504-QBHW2015HT New Product	Eaton Electrical	Circuit Breakers QBHW2015, 2P, 15A 22kAIC, 240V	Datasheet	1In Stock 2Expected 2026/10/13	$991.12 $791.90 $756.00 View Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE DFN1006-2A VESD26D1-HD1HG3-08 Vishay 1: $0.52 9,750In Stock New Product	Mfr. Part No. VESD26D1-HD1HG3-08 Mouser Part No 78-VESD26D1-HD1H3-08 New Product	Vishay	ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE DFN1006-2A		9,750In Stock	Cut Tape $0.52 $0.362 $0.177 $0.148 Reel $0.067 View $0.104 $0.09 $0.081 $0.062	Min.: 1 Mult.: 1 : 10,000
Circuit Breakers 508,DM,24VDC,CL,2-3-3.6,CL2,ATX REX22D-TD2-100-DC24V-2A/3A/3,6A-CL2-E E-T-A 1: $106.24 4In Stock New Product	Mfr. Part No. REX22D-TD2-100-DC24V-2A/3A/3,6A-CL2-E Mouser Part No 457-REX22DTD22336CLE New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,2-3-3.6,CL2,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 PDG2,3P,20A,25KA/480V,FXFXTMTU PDG23F0020TFFJ Eaton Electrical 1: $738.75 2In Stock New Product	Mfr. Part No. PDG23F0020TFFJ Mouser Part No 504-PDG23F0020TFFJ New Product	Eaton Electrical	Circuit Breakers PDG2,3P,20A,25KA/480V,FXFXTMTU	Datasheet	2In Stock	$738.75 $611.98 $564.01	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 1,872In Stock 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	1,872In Stock	$1.93 $1.45 $1.16 $1.09 View $1.06 $0.89 $0.82 $0.755	Min.: 1 Mult.: 1
Connectorised Surge Protectors 4.3-10 F/F BULKHEAD COAXIAL RF SURGE PROTECTOR 698 PE73SP1061 Pasternack 1: $203.46 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	$203.46 $181.73 $178.26 $177.62 View Quote	Min.: 1 Mult.: 1
Circuit Breakers 508,DM,24VDC,CL,10-12-15,ATX REX22D-TD1-100-DC24V-10A/12A/15A-E E-T-A 1: $92.16 19In Stock New Product	Mfr. Part No. REX22D-TD1-100-DC24V-10A/12A/15A-E Mouser Part No 457-REX22DTD1101215E New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,10-12-15,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	19In Stock	$92.16 $76.14 $75.05 $70.77	Min.: 1 Mult.: 1

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