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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.
Circuit Breakers PDG2,3P,150A,35KA/480V,FXFXTMTU PDG23G0150TFFJ Eaton Electrical 1: $1,175.92 3In Stock New Product	Mfr. Part No. PDG23G0150TFFJ Mouser Part No 504-PDG23G0150TFFJ New Product	Eaton Electrical	Circuit Breakers PDG2,3P,150A,35KA/480V,FXFXTMTU	Datasheet	3In Stock	$1,175.92	Min.: 1 Mult.: 1
Circuit Breakers 2P 15A BOLT ON 10KA 30MA TRIP LEVEL QBGFEP2015W1 Eaton Electrical 1: $1,648.66 1In Stock New Product	Mfr. Part No. QBGFEP2015W1 Mouser Part No 504-QBGFEP2015W1 New Product	Eaton Electrical	Circuit Breakers 2P 15A BOLT ON 10KA 30MA TRIP LEVEL	Datasheet	1In Stock	$1,648.66	Min.: 1 Mult.: 1
Power Outlet Strips EA BA PDU 1U, C20 INPUT, 3.33 KW MAX, 11 T9092B-CBSF Eaton 1: $1,211.40 53In Stock 1On Order	Mfr. Part No. T9092B-CBSF Mouser Part No 545-T9092B-CBSF	Eaton	Power Outlet Strips EA BA PDU 1U, C20 INPUT, 3.33 KW MAX, 11	Datasheet	53In Stock 1On Order	$1,211.40 View Quote	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 10K +/-1% Glass Bead, B3435, 300C TT2-10KC8-8 CTS Electronic Components 1: $2.65 500In Stock New Product	Mfr. Part No. TT2-10KC8-8 Mouser Part No 774-TT210KC88 New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors 10K +/-1% Glass Bead, B3435, 300C Learn More about CTS Electronic Components cts tt2 ntc thermistors	Datasheet	500In Stock	$2.65 $2.28 $2.17 $1.97 View $1.80 $1.78 $1.70 $1.59 $1.52	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 30K +/-1% Glass Bead, B3990, 300C TT2-30KC5-3 CTS Electronic Components 1: $2.47 462In Stock New Product	Mfr. Part No. TT2-30KC5-3 Mouser Part No 774-TT230KC53 New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors 30K +/-1% Glass Bead, B3990, 300C Learn More about CTS Electronic Components cts tt2 ntc thermistors	Datasheet	462In Stock	$2.47 $2.13 $2.02 $1.84 View $1.68 $1.66 $1.59 $1.48 $1.42	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 1K, +/-0.2C: 0C-70C, B3977, uninsulated wire TTS-1KC3-BG CTS Electronic Components 1: $2.24 496In Stock New Product	Mfr. Part No. TTS-1KC3-BG Mouser Part No 774-TTS1KC3BG New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors 1K, +/-0.2C: 0C-70C, B3977, uninsulated wire Learn More about CTS Electronic Components cts tt s thermistors	Datasheet	496In Stock	$2.24 $1.93 $1.84 $1.67 View $1.65 $1.40 $1.34 $1.27	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 10k, DO-35 glass NTC, B3977 TTDO-10KC3-6-5% CTS Electronic Components 1: $1.19 487In Stock New Product	Mfr. Part No. TTDO-10KC3-6-5% Mouser Part No 774-TTDO10KC365% New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors 10k, DO-35 glass NTC, B3977 Learn More about CTS Electronic Components cts tt do thermistors	Datasheet	487In Stock	$1.19 $1.02 $0.968 $0.879 View $0.873 $0.741 $0.707 $0.67	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 2.186K +/-1% Glass Bead, B3390,300C TT2-2.186KC7L-1 CTS Electronic Components 1: $3.62 490In Stock New Product	Mfr. Part No. TT2-2.186KC7L-1 Mouser Part No 774-TT22.186KC7L1 New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors 2.186K +/-1% Glass Bead, B3390,300C Learn More about CTS Electronic Components cts tt2 ntc thermistors	Datasheet	490In Stock	$3.62 $3.12 $2.96 $2.82 View $2.69 $2.47 $2.43 $2.33 $2.17	Min.: 1 Mult.: 1
Automotive Fuses 50A 32V TIME DELAY BK-AMI-050 Bussmann / Eaton 1: $4.65 68In Stock New Product	Mfr. Part No. BK-AMI-050 Mouser Part No 504-K-AMI-050 New Product	Bussmann / Eaton	Automotive Fuses 50A 32V TIME DELAY		68In Stock	$4.65 $4.60 $3.43 $3.19 View $2.41 $2.29 $2.25 $2.19	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes ESD, DFN1006-2, 51V, 24V, 0.5A, Bidir, AEC-Q101 ESD9BL24P-AQ Diotec Semiconductor 1: $0.37 9,970In Stock New Product	Mfr. Part No. ESD9BL24P-AQ Mouser Part No 637-ESD9BL24P-AQ New Product	Diotec Semiconductor	ESD Protection Diodes / TVS Diodes ESD, DFN1006-2, 51V, 24V, 0.5A, Bidir, AEC-Q101 Learn More about Diotec Semiconductor diotec esd9bl24p aq diode	Datasheet	9,970In Stock	$0.37 $0.175 $0.153 $0.113 View $0.058 $0.05	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors Glass 10k Ohm 1%, B 3977, in SS cap, PVC leads 500mm TT4-G10KC3-T80-OM54-500 CTS Electronic Components 1: $6.35 100In Stock New Product	Mfr. Part No. TT4-G10KC3-T80-OM54-500 Mouser Part No 774-TT4G10KC3T80OM54 New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors Glass 10k Ohm 1%, B 3977, in SS cap, PVC leads 500mm Learn More about CTS Electronic Components cts tt 4 temperature sensors	Datasheet	100In Stock	$6.35 $5.48 $5.23 $4.44 View $4.27 $4.09 $3.97	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 10k, DO-35 glass NTC, B3977 TTDO-10KC3-8 CTS Electronic Components 1: $1.31 417In Stock New Product	Mfr. Part No. TTDO-10KC3-8 Mouser Part No 774-TTDO10KC38 New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors 10k, DO-35 glass NTC, B3977 Learn More about CTS Electronic Components cts tt do thermistors	Datasheet	417In Stock	$1.31 $1.13 $1.07 $0.979 View $0.901 $0.883 $0.845 $0.788 $0.747	Min.: 1 Mult.: 1
Connectorised Surge Protectors Coaxial RF Surge Protector Kit, 25x GT-NFF-AL GT-NFF-AL25 PolyPhaser 1: $883.81 4In Stock New Product	Mfr. Part No. GT-NFF-AL25 Mouser Part No 44-GT-NFF-AL25 New Product	PolyPhaser	Connectorised Surge Protectors Coaxial RF Surge Protector Kit, 25x GT-NFF-AL	Datasheet	4In Stock	$883.81	Min.: 1 Mult.: 1
Automotive Fuses FUSE - ZCASE MEGA 32V M10 80A 480 PC 3298080.ZXM10 Littelfuse 1: $13.98 289In Stock New Product	Mfr. Part No. 3298080.ZXM10 Mouser Part No 576-3298080.ZXM10 New Product	Littelfuse	Automotive Fuses FUSE - ZCASE MEGA 32V M10 80A 480 PC	Datasheet	289In Stock	$13.98 $13.05 $10.31 $8.79 View $8.05 $7.77 $7.76 $7.68 Quote	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR G1540 / 50k/ 2% B57540G1503G000 TDK 1: $5.11 975In Stock New Product	Mfr. Part No. B57540G1503G000 Mouser Part No 871-B57540G1503G000 New Product	TDK	NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR G1540 / 50k/ 2% Learn More about TDK thermistors	Datasheet	975In Stock	$5.11 $4.38 $3.83 $3.41 View $3.24 $3.15 $2.68 $2.60	Min.: 1 Mult.: 1
Circuit Breakers UL/CSA/IEC SLASH RTD TM MCCB 80A 3P NZMN1-A80-NA Eaton Electrical 1: $2,762.41 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	$2,762.41	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 500W, 75uJ, 50kA, Blocking Cap, Hole Mount IS-NEMP-C0 PolyPhaser 1: $198.75 8In Stock 18On Order New Product	Mfr. Part No. IS-NEMP-C0 Mouser Part No 44-IS-NEMP-C0 New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 500W, 75uJ, 50kA, Blocking Cap, Hole Mount Learn More about PolyPhaser 1 5mhz 6ghz surge protectors	Datasheet	8In Stock 18On Order On Order Ship Dates Mfr. No: IS-NEMP-C0 Stock: 8 Can Dispatch Immediately On Order: 10 Pending 8 Expected 14/05/2027 Factory Lead Time: 15 Weeks	$198.75 $190.34	Min.: 1 Mult.: 1
Automotive Fuses FUSE - ZCASE MEGA 32V M10 400A 480 PC 3298400.ZXM10 Littelfuse 1: $13.98 468In Stock New Product	Mfr. Part No. 3298400.ZXM10 Mouser Part No 576-3298400.ZXM10 New Product	Littelfuse	Automotive Fuses FUSE - ZCASE MEGA 32V M10 400A 480 PC	Datasheet	468In Stock	$13.98 $13.05 $10.31 $8.10 View $7.26 $6.71 $6.32 $6.15	Min.: 1 Mult.: 1
Thermal Cut-offs TCO, High Current, SMD, 90C, Self Hold AEC-Q200 SD90ABB Bourns 1: $1.96 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 $1.96 $1.86 $1.76 $1.68 View Reel $1.13 $1.61 $1.47 $1.34 $1.30 $1.13 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors 30K, +/-0.2C: 0C-70C, B3942, uninsulated wire TTS-30KC5-BG CTS Electronic Components 1: $2.24 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	$2.24 $1.93 $1.84 $1.67 View $1.65 $1.40 $1.34 $1.27	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: $2.41 451In 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	451In Stock	$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, B4260, uninsulated wire TTS-30KC6-BG CTS Electronic Components 1: $2.24 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	$2.24 $1.93 $1.84 $1.67 View $1.65 $1.40 $1.34 $1.27	Min.: 1 Mult.: 1
Circuit Breaker Accessories 250A 3P Thermal Mag Fixed/Adj Trip Unit Eaton Electrical JT3250FA JT3250FA Eaton Electrical 1: $1,803.12 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	$1,803.12	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
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 12/11/2026 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 12/11/2026	$1.90 $1.66 $1.59 $1.46 View $1.24 $1.20 $1.15	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection