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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 Positive Train Control (PTC) Filter, Railroad RF Band Pass with Surge Protector, 160 MHz to 163 MHz, Type N F/F, 100W CW, IP67, 50uJ, 10kA RRF-160-NFF PolyPhaser 1: $506.29 1In Stock New Product	Mfr. Part No. RRF-160-NFF Mouser Part No 44-RRF-160-NFF New Product	PolyPhaser	Connectorised Surge Protectors Positive Train Control (PTC) Filter, Railroad RF Band Pass with Surge Protector, 160 MHz to 163 MHz, Type N F/F, 100W CW, IP67, 50uJ, 10kA	Datasheet	1In Stock	$506.29 $484.88	Min.: 1 Mult.: 1
Circuit Breakers 508,DM,24VDC,CL,10-16-20,ATX REX22D-TD1-100-DC24V-10A/16A/20A-E E-T-A 1: $153.10 8In Stock New Product	Mfr. Part No. REX22D-TD1-100-DC24V-10A/16A/20A-E Mouser Part No 457-REX22DTD1101620E New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,10-16-20,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	8In Stock	$153.10 $129.24 $103.54 $102.71 View $98.94 Quote	Min.: 1 Mult.: 1
Circuit Breakers GWF 3P 40A CIRCUIT BKR FXD TMNETIC, 25kA GWF3040 Eaton Electrical 1: $1,300.91 1In Stock New Product	Mfr. Part No. GWF3040 Mouser Part No 504-GWF3040 New Product	Eaton Electrical	Circuit Breakers GWF 3P 40A CIRCUIT BKR FXD TMNETIC, 25kA		1In Stock	$1,300.91	Min.: 1 Mult.: 1
Circuit Breakers PDG1,3P,45A,65KA/480V,50C FXFXTMTU PDG13M0045VFFJ Eaton Electrical 1: $1,036.63 1In Stock New Product	Mfr. Part No. PDG13M0045VFFJ Mouser Part No 504-PDG13M0045VFFJ New Product	Eaton Electrical	Circuit Breakers PDG1,3P,45A,65KA/480V,50C FXFXTMTU	Datasheet	1In Stock	$1,036.63	Min.: 1 Mult.: 1
Circuit Breakers PDG2,2P,125A,65KA/480V,FXFXTMTU PDG22M0125TFFL Eaton Electrical 1: $1,439.23 1In Stock New Product	Mfr. Part No. PDG22M0125TFFL Mouser Part No 504-PDG22M0125TFFL New Product	Eaton Electrical	Circuit Breakers PDG2,2P,125A,65KA/480V,FXFXTMTU	Datasheet	1In Stock	$1,439.23	Min.: 1 Mult.: 1
Circuit Breakers PDG2,3P,60A,65KA/480V,FXFXTMTU PDG23M0060TFFL Eaton Electrical 1: $1,064.84 1In Stock New Product	Mfr. Part No. PDG23M0060TFFL Mouser Part No 504-PDG23M0060TFFL New Product	Eaton Electrical	Circuit Breakers PDG2,3P,60A,65KA/480V,FXFXTMTU	Datasheet	1In Stock	$1,064.84	Min.: 1 Mult.: 1
Triacs 400V 10A 50-50-50mA Q4010L5TP Littelfuse 1: $4.68 11,031In Stock	Mfr. Part No. Q4010L5TP Mouser Part No 576-Q4010L5TP	Littelfuse	Triacs 400V 10A 50-50-50mA Learn More about Littelfuse qxx10 triacs	Datasheet	11,031In Stock	$4.68 $2.38 $2.15 $2.01	Min.: 1 Mult.: 1
Circuit Breakers CBMC E4 24DC/1-10ANO 2906032 Phoenix Contact 1: $158.15 374In Stock	Mfr. Part No. 2906032 Mouser Part No 651-2906032	Phoenix Contact	Circuit Breakers CBMC E4 24DC/1-10ANO Learn More about Phoenix Contact cbmc circuit breakers	Datasheet	374In Stock	$158.15	Min.: 1 Mult.: 1
SCRs New Input Thyristor - D2PAK-e3 Vishay Semiconductors VS-16TTS08STRL-M3 VS-16TTS08STRL-M3 Vishay Semiconductors 1: $6.96 7,244In Stock	Mfr. Part No. VS-16TTS08STRL-M3 Mouser Part No 78-VS-16TTS08STRL-M3	Vishay Semiconductors	SCRs New Input Thyristor - D2PAK-e3	Datasheet	7,244In Stock	Cut Tape $6.96 $4.62 $3.29 $2.80 Reel $2.80	Min.: 1 Mult.: 1 : 800
NTC (Negative Temperature Coefficient) Thermistors 0402 10K OHM 0.5% NTC AEC-Q200 125C NTCG103JX103DTDS TDK 1: $0.435 159,710In Stock	Mfr. Part No. NTCG103JX103DTDS Mouser Part No 810-NTCG103JX103DTDS	TDK	NTC (Negative Temperature Coefficient) Thermistors 0402 10K OHM 0.5% NTC AEC-Q200 125C Learn More about TDK NTCG smd ntc thermistors	Datasheet	159,710In Stock	Cut Tape $0.435 $0.401 $0.355 $0.33 Reel $0.207 View $0.292 $0.238 $0.23 $0.199 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
NTC (Negative Temperature Coefficient) Thermistors 30k 3964 B57863S0303F040 TDK 1: $4.01 10,370In Stock	Mfr. Part No. B57863S0303F040 Mouser Part No 871-B57863S303F40	TDK	NTC (Negative Temperature Coefficient) Thermistors 30k 3964 Learn More about TDK epcos ntc thermistors	Datasheet	10,370In Stock	$4.01 $3.84 $3.62 $3.47 View $3.33 $3.02 $2.83 $2.52	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors Insulated chip & leads, 5KOhm +/-1% @ 25 C NKA502C1R1C Amphenol Advanced Sensors 1: $3.40 14,213In Stock	Mfr. Part No. NKA502C1R1C Mouser Part No 527-NKA502C1R1C	Amphenol Advanced Sensors	NTC (Negative Temperature Coefficient) Thermistors Insulated chip & leads, 5KOhm +/-1% @ 25 C Learn More about Amphenol Advanced Sensors amphenol cr1 chip thermistors	Datasheet	14,213In Stock	$3.40 $3.29 $3.16 $3.07 View $2.99 $2.83 $2.68	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 2A 1500VDC Solar 50kA Photovoltaic SPXV002.T Littelfuse 1: $56.97 5,430In Stock	Mfr. Part No. SPXV002.T Mouser Part No 576-SPXV002.T	Littelfuse	Industrial & Electrical Fuses 2A 1500VDC Solar 50kA Photovoltaic Learn More about Littelfuse spxv solar fuses	Datasheet	5,430In Stock	$56.97 $47.27 $37.14 $36.11 View $33.27 $29.82 $27.08 Quote	Min.: 1 Mult.: 1
Surface Mount Fuses 0603 0.25amp 0.65ohm SMD F0603E0R25FSTR KYOCERA AVX 1: $0.802 173,761In Stock	Mfr. Part No. F0603E0R25FSTR Mouser Part No 581-F0603E0R25FSTR	KYOCERA AVX	Surface Mount Fuses 0603 0.25amp 0.65ohm SMD Learn More about KYOCERA AVX avx accu guard ii fuses	Datasheet	173,761In Stock	Cut Tape $0.802 $0.619 $0.521 $0.473 Reel $0.333 View $0.424 $0.392 $0.362 $0.299 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
PTC (Positive Temperature Coefficient) Thermistors 1210 230Vdc 40mA PTC Overcurrent B59807A0090A062 TDK 1: $1.14 39,653In Stock	Mfr. Part No. B59807A0090A062 Mouser Part No 871-B59807A0090A062	TDK	PTC (Positive Temperature Coefficient) Thermistors 1210 230Vdc 40mA PTC Overcurrent Learn More about TDK epcos kits	Datasheet	39,653In Stock	Cut Tape $1.14 $1.06 $0.956 $0.864 View Reel $0.588 $0.815 $0.752 $0.681 $0.631 $0.588 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Surge Protection Accessories L-Shaped Adapter BF-ADAPTER PolyPhaser 1: $40.53 18In Stock New Product	Mfr. Part No. BF-ADAPTER Mouser Part No 44-BF-ADAPTER New Product	PolyPhaser	Surge Protection Accessories L-Shaped Adapter Learn More about PolyPhaser surge protector accessories	Datasheet	18In Stock	$40.53 $34.41 $32.86 $29.39 $29.38	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid, Bracket Up, Hole Mount DGXZ+06NMNF-Z PolyPhaser 1: $264.57 4In Stock New Product	Mfr. Part No. DGXZ+06NMNF-Z Mouser Part No 44-DGXZ+06NMNF-Z New Product	PolyPhaser	Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid, Bracket Up, Hole Mount Learn More about PolyPhaser gx surge protectors	Datasheet	4In Stock	$264.57 $250.95	Min.: 1 Mult.: 1
Connectorised Surge Protectors 75 Ohm Type F F/F Coaxial RF Surge Protector, 4MHz - 900MHz, DC Block, 100W, 50kA, Blocking Cap, Bracket Up, Hole Mount IS-75F-C1 PolyPhaser 1: $149.84 7In Stock 4Expected 13/11/2026 New Product	Mfr. Part No. IS-75F-C1 Mouser Part No 44-IS-75F-C1 New Product	PolyPhaser	Connectorised Surge Protectors 75 Ohm Type F F/F Coaxial RF Surge Protector, 4MHz - 900MHz, DC Block, 100W, 50kA, Blocking Cap, Bracket Up, Hole Mount Learn More about PolyPhaser 4mhz 900mhz 5mhz 400mhz protectors	Datasheet	7In Stock 4Expected 13/11/2026	$149.84 $142.12	Min.: 1 Mult.: 1
Surge Protection Accessories IX Series Pole Mount Kit IX-POLE-KIT PolyPhaser 1: $92.15 10In Stock New Product	Mfr. Part No. IX-POLE-KIT Mouser Part No 44-IX-POLE-KIT New Product	PolyPhaser	Surge Protection Accessories IX Series Pole Mount Kit	Datasheet	10In Stock	$92.15 $87.24	Min.: 1 Mult.: 1
Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 1 1/4 to 2 1/4 inch TK-2 PolyPhaser 1: $66.49 10In Stock New Product	Mfr. Part No. TK-2 Mouser Part No 44-TK-2 New Product	PolyPhaser	Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 1 1/4 to 2 1/4 inch Learn More about PolyPhaser surge protector accessories	Datasheet	10In Stock	$66.49 $62.04 $59.43	Min.: 1 Mult.: 1
Connectorised Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM TSX-DFM PolyPhaser 1: $313.21 5In Stock New Product	Mfr. Part No. TSX-DFM Mouser Part No 44-TSX-DFM New Product	PolyPhaser	Connectorised Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM Learn More about PolyPhaser 650mhz 2 7ghz surge protectors	Datasheet	5In Stock	$313.21 $299.96	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 TSX-NFM PolyPhaser 1: $189.64 9In Stock New Product	Mfr. Part No. TSX-NFM Mouser Part No 44-TSX-NFM 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 Learn More about PolyPhaser 650mhz 2 7ghz surge protectors	Datasheet	9In Stock	$189.64 $179.86	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 0.5MHz - 1GHz, DC Block, 750W, IP67, 15mJ, 20kA, Filter, Bracket Down, Hole Mount VUF50NHP-MA PolyPhaser 1: $394.73 3In Stock New Product	Mfr. Part No. VUF50NHP-MA Mouser Part No 44-VUF50NHP-MA New Product	PolyPhaser	Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 0.5MHz - 1GHz, DC Block, 750W, IP67, 15mJ, 20kA, Filter, Bracket Down, Hole Mount	Datasheet	3In Stock	$394.73 $378.04	Min.: 1 Mult.: 1
Circuit Breaker Accessories 508, DM, 40A Supply Module, IOLink, ATEX EM12D-TIO-000-DC24V-40A-E E-T-A 1: $222.78 6In Stock New Product	Mfr. Part No. EM12D-TIO-000-DC24V-40A-E Mouser Part No 457-EM12DTIO24V4AE New Product	E-T-A	Circuit Breaker Accessories 508, DM, 40A Supply Module, IOLink, ATEX	Datasheet	6In Stock	$222.78 $184.73 $154.14 $147.26 $143.25	Min.: 1 Mult.: 1
Circuit Breaker Accessories 508, DM, 40A Supply Module, Modbus, ATEX EM12D-TMB-000-DC24V-40A-E E-T-A 1: $289.88 3In Stock New Product	Mfr. Part No. EM12D-TMB-000-DC24V-40A-E Mouser Part No 457-EM12DTMB24V4AE New Product	E-T-A	Circuit Breaker Accessories 508, DM, 40A Supply Module, Modbus, ATEX	Datasheet	3In Stock	$289.88 $243.29 $232.85 $211.13 View Quote	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection