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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 (SGD) Filter the results in the table by unit price based on your quantity.	Qty.
Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 3kW, 20uJ, 50kA, Blocking Cap, Hole Mount IS-B50HN-C0 PolyPhaser 1: $170.90 31In Stock 5On Order New Product	Mfr. Part No. IS-B50HN-C0 Mouser Part No 44-IS-B50HN-C0 New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 3kW, 20uJ, 50kA, Blocking Cap, Hole Mount Learn More about PolyPhaser 1 5mhz 6ghz surge protectors	Datasheet	31In Stock 5On Order	$170.90 $162.10	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 500W, 800uJ, 20kA, Blocking Cap, Hole Mount IS-B50HN-C2 PolyPhaser 1: $166.22 49In Stock 31On Order New Product	Mfr. Part No. IS-B50HN-C2 Mouser Part No 44-IS-B50HN-C2 New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 500W, 800uJ, 20kA, Blocking Cap, Hole Mount Learn More about PolyPhaser 125mhz 1ghz type n surge protectors	Datasheet	49In Stock 31On Order On Order Ship Dates Mfr. No: IS-B50HN-C2 Stock: 49 Can Dispatch Immediately On Order: 19 Expected 6/11/2026 12 Expected 11/11/2026 Factory Lead Time: 3 Weeks	$166.22 $157.65	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 500W, 800uJ, 50kA, Blocking Cap, Hole Mount IS-B50HN-C2-ME PolyPhaser 1: $180.27 66In Stock New Product	Mfr. Part No. IS-B50HN-C2-ME Mouser Part No 44-IS-B50HN-C2-ME New Product	PolyPhaser	Connectorised Surge Protectors Type N F/M 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	66In Stock	$180.27 $170.98	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Up, Hole Mount VHF50HN-B PolyPhaser 1: $222.41 67In Stock 69On Order New Product	Mfr. Part No. VHF50HN-B Mouser Part No 44-VHF50HN-B New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Up, Hole Mount Learn More about PolyPhaser 100mhz 512mhz surge protectors	Datasheet	67In Stock 69On Order On Order Ship Dates Mfr. No: VHF50HN-B Stock: 67 Can Dispatch Immediately On Order: 9 Pending 43 Expected 10/11/2026 17 Expected 9/12/2026 Factory Lead Time: 7 Weeks	$222.41 $210.96	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% NTCLE213E3103FLB0A Vishay / BC Components 1: $2.39 2,947In Stock New Product	Mfr. Part No. NTCLE213E3103FLB0A Mouser Part No 594-NTCLE213E313FLB New Product	Vishay / BC Components	NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1%	Datasheet	2,947In Stock	$2.39 $1.80 $1.44 $1.35 View $1.32 $1.10 $0.91	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 100W, 120uJ, 20kA, Blocking Cap, Hole Mount 098-1013G-A PolyPhaser 1: $154.51 15In Stock 59On Order New Product	Mfr. Part No. 098-1013G-A Mouser Part No 44-098-1013G-A New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 100W, 120uJ, 20kA, Blocking Cap, Hole Mount	Datasheet	15In Stock 59On Order On Order Ship Dates Mfr. No: 098-1013G-A Stock: 15 Can Dispatch Immediately On Order: 8 Pending 36 Expected 16/11/2026 15 Expected 4/12/2026 Factory Lead Time: 6 Weeks	$154.51 $146.55	Min.: 1 Mult.: 1
Connectorised Surge Protectors TNC F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount DGXZ+15TFTF-A PolyPhaser 1: $278.88 59In Stock 27On Order New Product	Mfr. Part No. DGXZ+15TFTF-A Mouser Part No 44-DGXZ+15TFTF-A New Product	PolyPhaser	Connectorised Surge Protectors TNC F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount Learn More about PolyPhaser gx surge protectors	Datasheet	59In Stock 27On Order On Order Ship Dates Mfr. No: DGXZ+15TFTF-A Stock: 59 Can Dispatch Immediately On Order: 15 Expected 6/11/2026 12 Expected 12/11/2026 Factory Lead Time: 4 Weeks	$278.88 $267.08	Min.: 1 Mult.: 1
Connectorised Surge Protectors TNC F/F Bulkhead Coaxial RF Surge Protector, DC - 7GHz, DC Pass, 90W, IP67, 4mJ, 20kA, Gas Discharge Tube GT-TFF-AL PolyPhaser 1: $104.28 58In Stock 112On Order New Product	Mfr. Part No. GT-TFF-AL Mouser Part No 44-GT-TFF-AL New Product	PolyPhaser	Connectorised Surge Protectors TNC F/F Bulkhead Coaxial RF Surge Protector, DC - 7GHz, DC Pass, 90W, IP67, 4mJ, 20kA, Gas Discharge Tube Learn More about PolyPhaser dc 7ghz rf coaxial surge protectors	Datasheet	58In Stock 112On Order On Order Ship Dates Mfr. No: GT-TFF-AL Stock: 58 Can Dispatch Immediately On Order: 12 Pending 13 Expected 23/11/2026 87 Expected 25/12/2026 Factory Lead Time: 10 Weeks	$104.28 $98.72	Min.: 1 Mult.: 1
Connectorised Surge Protectors UHF F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 2kW, 10mJ, 50kA, Blocking Cap, Hole Mount IS-B50LU-C0 PolyPhaser 1: $154.52 20In Stock New Product	Mfr. Part No. IS-B50LU-C0 Mouser Part No 44-IS-B50LU-C0 New Product	PolyPhaser	Connectorised Surge Protectors UHF F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 2kW, 10mJ, 50kA, Blocking Cap, Hole Mount Learn More about PolyPhaser 1 5mhz 6ghz surge protectors	Datasheet	20In Stock	$154.52 $146.57	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 6GHz - 10GHz, DC Block, 750W, IP67, .5uJ, 10kA, Filter WSXM PolyPhaser 1: $349.68 17In Stock 1Expected 20/11/2026 New Product	Mfr. Part No. WSXM Mouser Part No 44-WSXM New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 6GHz - 10GHz, DC Block, 750W, IP67, .5uJ, 10kA, Filter Learn More about PolyPhaser 6ghz 10ghz surge protector	Datasheet	17In Stock 1Expected 20/11/2026	$349.68 $334.89	Min.: 1 Mult.: 1
Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Slim Line GDT technology 3406.00.0036 HUBER+SUHNER 1: $350.36 8In Stock New Product	Mfr. Part No. 3406.00.0036 Mouser Part No 455-3406000036 New Product	HUBER+SUHNER	Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Slim Line GDT technology Learn More about HUBER+SUHNER huber suhner surge suppression solutions	Datasheet	8In Stock	$350.36 $317.21 $304.94	Min.: 1 Mult.: 1
Circuit Breakers PDG3,3P,250A,35KA/480V,PXR10 LSI PDG33G0250B2NJ Eaton Electrical 1: $3,556.59 1In Stock New Product	Mfr. Part No. PDG33G0250B2NJ Mouser Part No 504-PDG33G0250B2NJ New Product	Eaton Electrical	Circuit Breakers PDG3,3P,250A,35KA/480V,PXR10 LSI	Datasheet	1In Stock	$3,556.59	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 5KW, 54V 5%,BIDIR,SMC TVS SMC5K54CAHM3/I Vishay 1: $3.97 2,240In Stock New Product	Mfr. Part No. SMC5K54CAHM3/I Mouser Part No 78-SMC5K54CAHM3/I New Product	Vishay	ESD Protection Diodes / TVS Diodes 5KW, 54V 5%,BIDIR,SMC TVS Learn More about Vishay semi smc5kxxca transzorb tvs	Datasheet	2,240In Stock	Cut Tape $3.97 $2.57 $2.08 $1.75 Reel $1.17 View $1.39 $1.30 $1.16	Min.: 1 Mult.: 1 : 3,500
Power Outlet Strips EA BA PDU 1U, C20 INPUT, 3.33 KW MAX, 11 T9092B-CBSF Eaton 1: $1,647.50 28In Stock 26On 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	28In Stock 26On Order On Order Ship Dates Mfr. No: T9092B-CBSF Stock: 28 Can Dispatch Immediately On Order: 8 Expected 29/10/2026 18 Expected 11/11/2026 Factory Lead Time: 12 Weeks	$1,647.50 View Quote	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 10k, DO-35 glass NTC, B3977 TTDO-10KC3-6-5% CTS Electronic Components 1: $1.62 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	$1.62 $1.39 $1.32 $1.20 View $1.19 $1.01 $0.962 $0.911	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 1K, +/-0.2C: 0C-70C, B3977, uninsulated wire TTS-1KC3-BG CTS Electronic Components 1: $3.05 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	$3.05 $2.62 $2.50 $2.27 View $2.24 $1.90 $1.82 $1.73	Min.: 1 Mult.: 1
Automotive Fuses 50A 32V TIME DELAY BK-AMI-050 Bussmann / Eaton 1: $6.32 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	$6.32 $6.26 $4.66 $4.34 View $3.28 $3.11 $3.06 $2.98	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes ESD, DFN1006-2, 51V, 24V, 0.5A, Bidir, AEC-Q101 ESD9BL24P-AQ Diotec Semiconductor 1: $0.503 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	$0.503 $0.238 $0.208 $0.154 View $0.079 $0.068	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: $8.64 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	$8.64 $7.45 $7.11 $6.04 View $5.81 $5.56 $5.40	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 10k, DO-35 glass NTC, B3977 TTDO-10KC3-8 CTS Electronic Components 1: $1.78 457In 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	457In Stock	$1.78 $1.54 $1.46 $1.33 View $1.23 $1.20 $1.15 $1.07 $1.02	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 10K +/-1% Glass Bead, B3435, 300C TT2-10KC8-8 CTS Electronic Components 1: $3.60 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	$3.60 $3.10 $2.95 $2.68 View $2.45 $2.42 $2.31 $2.16 $2.07	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 30K +/-1% Glass Bead, B3990, 300C TT2-30KC5-3 CTS Electronic Components 1: $3.36 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	$3.36 $2.90 $2.75 $2.50 View $2.28 $2.26 $2.16 $2.01 $1.93	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 2.186K +/-1% Glass Bead, B3390,300C TT2-2.186KC7L-1 CTS Electronic Components 1: $4.92 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	$4.92 $4.24 $4.03 $3.84 View $3.66 $3.36 $3.30 $3.17 $2.95	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: $270.30 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 14/5/2027 Factory Lead Time: 15 Weeks	$270.30 $258.86	Min.: 1 Mult.: 1
Circuit Breakers UL/CSA/IEC SLASH RTD TM MCCB 80A 3P NZMN1-A80-NA Eaton Electrical 1: $3,756.88 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	$3,756.88	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection