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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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Types of Circuit Protection

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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.
Connectorised Surge Protectors Data Surge Protector, Outdoor Gigabit Ethernet PoE++, SASD/GDT, Full Mode Plus S-G, FDOT APL 620-004-012, UL497B, CE ALPU-F140 Transtector 1: 112,51 € 25In Stock Restricted Availability 19Expected 9/30/2026 New At Mouser	Mfr. Part No. ALPU-F140 Mouser Part No 21-ALPU-F140 New At Mouser	Transtector	Connectorised Surge Protectors Data Surge Protector, Outdoor Gigabit Ethernet PoE++, SASD/GDT, Full Mode Plus S-G, FDOT APL 620-004-012, UL497B, CE Learn More about Transtector alpu outdoor poe plus plus spds	Datasheet	25In Stock 19Expected 9/30/2026	112,51 € 106,72 €	Min.: 1 Mult.: 1 Restricted Availability
Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, GDT technology up to 2.5 GHz 3402.41.A HUBER+SUHNER 1: 407,66 € 5In Stock	Mfr. Part No. 3402.41.A Mouser Part No 455-340241A	HUBER+SUHNER	Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, GDT technology up to 2.5 GHz Learn More about HUBER+SUHNER huber suhner surge suppression solutions	Datasheet	5In Stock	407,66 € 336,97 € 322,73 €	Min.: 1 Mult.: 1
Circuit Breakers Single pole miniaturised magnetic circuit breakers with unique high-speed operating mechanism and push/pull on/off manual actuation. Fitted with electrically separate excitation and switching circuits, and one pair of auxiliary contac 808-H-0.4A E-T-A 1: 53,93 € 103In Stock	Mfr. Part No. 808-H-0.4A Mouser Part No 457-808-H-0.4A	E-T-A	Circuit Breakers Single pole miniaturised magnetic circuit breakers with unique high-speed operating mechanism and push/pull on/off manual actuation. Fitted with electrically separate excitation and switching circuits, and one pair of auxiliary contac	Datasheet	103In Stock	53,93 € 44,74 € 42,08 € 32,98 € View Quote	Min.: 1 Mult.: 1
Circuit Breakers The 3120-N...4 IP65 rated thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N...4 is ideally suite 3120-N324-P7T1-W19FG3-X3120-S01BM-2.5A E-T-A 1: 87,30 € 25In Stock	Mfr. Part No. 3120-N324-P7T1-W19FG3-X3120-S01BM-2.5A Mouser Part No 457-FG3X3120S01BM2.5	E-T-A	Circuit Breakers The 3120-N...4 IP65 rated thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N...4 is ideally suite Learn More about E-T-A e t a 3120 n thermal circuit breakers	Datasheet	25In Stock	87,30 € 85,48 € 57,66 € 53,82 € View Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories X20080104 E-T-A 1: 11,70 € 251In Stock	Mfr. Part No. X20080104 Mouser Part No 457-X20080104	E-T-A	Circuit Breaker Accessories		251In Stock	11,70 € 11,12 € 10,77 € 8,28 € View 7,03 € 6,62 € 5,87 €	Min.: 1 Mult.: 1
Circuit Breakers FAZ 2P 16A C CURVE ring term Eaton Electrical FAZ-C16/2-RT FAZ-C16/2-RT Eaton Electrical 1: 414,83 € 13In Stock	Mfr. Part No. FAZ-C16/2-RT Mouser Part No 504-FAZ-C16/2-RT	Eaton Electrical	Circuit Breakers FAZ 2P 16A C CURVE ring term Learn More about Eaton Electrical eaton ul 489 ul 1077 circuit breakers	Datasheet	13In Stock	414,83 € 343,64 € 316,70 € View Quote	Min.: 1 Mult.: 1
Circuit Breakers UL489 MCB 3P C 50A 240 SU203M-C50 ABB 1: 200,69 € 10In Stock Restricted Availability 15Expected 12/21/2026 New At Mouser	Mfr. Part No. SU203M-C50 Mouser Part No 894-SU203M-C50 New At Mouser	ABB	Circuit Breakers UL489 MCB 3P C 50A 240 Learn More about ABB su200m mini circuit breakers	Datasheet	10In Stock 15Expected 12/21/2026	200,69 € 174,98 € 158,69 € 132,72 € View Quote	Min.: 1 Mult.: 1 Restricted Availability
Circuit Breakers MOLDED CASE CIRCUIT BREAKER 600V 150A HDF36150 Square D 1: 2.236,00 € 1In Stock New At Mouser	Mfr. Part No. HDF36150 Mouser Part No 996-HDF36150 New At Mouser	Square D	Circuit Breakers MOLDED CASE CIRCUIT BREAKER 600V 150A	Datasheet	1In Stock	2.236,00 €	Min.: 1 Mult.: 1
Power Outlet Strips BASIC PDU 1U C20 INPUT 3.33 KW MAX 100-2 Eaton TPC2104 TPC2104 Eaton 1: 821,83 € 3In Stock	Mfr. Part No. TPC2104 Mouser Part No 545-TPC2104	Eaton	Power Outlet Strips BASIC PDU 1U C20 INPUT 3.33 KW MAX 100-2	Datasheet	3In Stock	821,83 € 569,11 € 557,86 € View Quote	Min.: 1 Mult.: 1
Fuse Holder Accessories Cover, 1 Position BMZS 901-731 Littelfuse 1: 9,54 € 56In Stock	Mfr. Part No. 901-731 Mouser Part No 576-901-731	Littelfuse	Fuse Holder Accessories Cover, 1 Position BMZS	Datasheet	56In Stock	9,54 € 9,50 € 5,60 € 5,33 €	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors RB103J9W-2 THERMISTOR NSRB103J3V2HET001 Littelfuse 1: 0,722 € 3.790In Stock	Mfr. Part No. NSRB103J3V2HET001 Mouser Part No 576-SRB103J3V2HET001	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors RB103J9W-2 THERMISTOR	Datasheet	3.790In Stock	0,722 € 0,554 € 0,476 € 0,46 € View 0,392 € 0,341 € 0,314 € 0,277 €	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 600W,6.8V 5%,BIDIR,SMB TVS P6SMB6.8CAHE3_B/I Vishay Semiconductors 1: 0,851 € 2.614In Stock	Mfr. Part No. P6SMB6.8CAHE3_B/I Mouser Part No 78-P6SMB6.8CAHE3BI	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W,6.8V 5%,BIDIR,SMB TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	2.614In Stock	Cut Tape 0,851 € 0,525 € 0,341 € 0,261 € Reel 0,202 € View 0,235 € 0,187 €	Min.: 1 Mult.: 1 : 3.200
ESD Protection Diodes / TVS Diodes SM8 - A 24V SM8S24AHM3/I Vishay 1: 4,07 € 471In Stock	Mfr. Part No. SM8S24AHM3/I Mouser Part No 78-SM8S24AHM3/I	Vishay	ESD Protection Diodes / TVS Diodes SM8 - A 24V	Datasheet	471In Stock	Cut Tape 4,07 € 2,68 € 2,14 € 1,74 € Reel 1,63 € 1,60 €	Min.: 1 Mult.: 1 : 750
ESD Protection Diodes / TVS Diodes 300W,550V MIN,UNIDIR,SMA TVS SMAJ550HM3_B/H Vishay Semiconductors 1: 0,783 € 5.387In Stock	Mfr. Part No. SMAJ550HM3_B/H Mouser Part No 78-SMAJ550HM3_B/H	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 300W,550V MIN,UNIDIR,SMA TVS	Datasheet	5.387In Stock	Cut Tape 0,783 € 0,484 € 0,314 € 0,241 € Reel 0,186 € View 0,217 € 0,184 € 0,168 €	Min.: 1 Mult.: 1 : 1.800
ESD Protection Diodes / TVS Diodes 600W,110V 5%,BIDIR,SMB TVS SMBJ110CAHM3_B/H Vishay Semiconductors 1: 0,98 € 5.077In Stock	Mfr. Part No. SMBJ110CAHM3_B/H Mouser Part No 78-SMBJ110CAHM3BH	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W,110V 5%,BIDIR,SMB TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	5.077In Stock	Cut Tape 0,98 € 0,526 € 0,396 € 0,289 € Reel 0,261 € View 0,249 € 0,212 € 0,206 € 0,20 €	Min.: 1 Mult.: 1 : 750
ESD Protection Diodes / TVS Diodes 600W,12V 5%,UNIDIR,SMB TVS SMBJ12AHE3_B/I Vishay Semiconductors 1: 0,688 € 3.195In Stock	Mfr. Part No. SMBJ12AHE3_B/I Mouser Part No 78-SMBJ12AHE3BI	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W,12V 5%,UNIDIR,SMB TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	3.195In Stock	Cut Tape 0,688 € 0,43 € 0,277 € 0,211 € Reel 0,163 € View 0,19 € 0,15 € 0,143 € 0,13 €	Min.: 1 Mult.: 1 : 3.200
ESD Protection Diodes / TVS Diodes 600W,60V 5%,UNIDIR,SMB TVS SMBJ60AHE3_B/I Vishay Semiconductors 1: 0,697 € 2.763In Stock	Mfr. Part No. SMBJ60AHE3_B/I Mouser Part No 78-SMBJ60AHE3BI	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W,60V 5%,UNIDIR,SMB TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	2.763In Stock	Cut Tape 0,697 € 0,431 € 0,278 € 0,212 € Reel 0,163 € View 0,191 € 0,148 € 0,145 € 0,141 €	Min.: 1 Mult.: 1 : 3.200
ESD Protection Diodes / TVS Diodes ESD 3.3V VCUT03G1-SD0-G4-08 Vishay Semiconductors 1: 0,292 € 27.120In Stock	Mfr. Part No. VCUT03G1-SD0-G4-08 Mouser Part No 78-VCUT03G1SD0G408	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes ESD 3.3V	Datasheet	27.120In Stock	Cut Tape 0,292 € 0,204 € 0,10 € 0,083 € View Reel 0,034 € 0,058 € 0,051 € 0,046 € 0,039 € 0,034 €	Min.: 1 Mult.: 1 : 15.000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1100 V GDT28H-110-B Bourns 1: 1,98 € 198In Stock	Mfr. Part No. GDT28H-110-B Mouser Part No 652-GDT28H-110-B	Bourns	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1100 V Learn More about Bourns gdt212e gdt216e gdt220e gdt225e gdts	Datasheet	198In Stock	1,98 € 1,62 € 1,30 € 1,16 € View 1,08 € 0,946 € 0,894 € 0,842 € 0,814 €	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 400W,45V 5%,BIDIR,SMA TVS SMAJ45CAHE3_A/H Vishay Semiconductors 1: 0,611 € 9.000In Stock	Mfr. Part No. SMAJ45CAHE3_A/H Mouser Part No 78-SMAJ45CAHE3_A/H	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,45V 5%,BIDIR,SMA TVS	Datasheet	9.000In Stock	Cut Tape 0,611 € 0,378 € 0,243 € 0,186 € Reel 0,143 € View 0,167 € 0,135 €	Min.: 1 Mult.: 1 : 1.800
ESD Protection Diodes / TVS Diodes 400W,6.0V 5%,BIDIR,SMA TVS SMAJ6.0CAHE3_A/H Vishay Semiconductors 1: 0,611 € 8.986In Stock	Mfr. Part No. SMAJ6.0CAHE3_A/H Mouser Part No 78-SMAJ6.0CAHE3_A/H	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,6.0V 5%,BIDIR,SMA TVS	Datasheet	8.986In Stock	Cut Tape 0,611 € 0,376 € 0,243 € 0,185 € Reel 0,139 € View 0,162 € 0,116 € MouseReel Available	Min.: 1 Mult.: 1 : 1.800
ESD Protection Diodes / TVS Diodes 600W,5.0V 5%,UNIDIR,SMB TVS SMBJ5.0AHM3_B/I Vishay Semiconductors 1: 0,80 € 6.276In Stock	Mfr. Part No. SMBJ5.0AHM3_B/I Mouser Part No 78-SMBJ5.0AHM3BI	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W,5.0V 5%,UNIDIR,SMB TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	6.276In Stock	Cut Tape 0,80 € 0,497 € 0,322 € 0,247 € Reel 0,192 € View 0,223 € 0,175 € 0,172 € MouseReel Available	Min.: 1 Mult.: 1 : 3.200
NTC (Negative Temperature Coefficient) Thermistors NCU15WF104FBSRC Murata Electronics 1: 0,112 € 9.018In Stock	Mfr. Part No. NCU15WF104FBSRC Mouser Part No 81-NCU15WF104FBSRC	Murata Electronics	NTC (Negative Temperature Coefficient) Thermistors Learn More about Murata Electronics murata ncu auto thermistors	Datasheet	9.018In Stock	0,112 € 0,096 € 0,085 € 0,07 € View 0,061 € 0,058 € 0,052 € 0,049 € 0,045 €	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NCU15WM474E6SRC Murata Electronics 1: 0,095 € 6.715In Stock	Mfr. Part No. NCU15WM474E6SRC Mouser Part No 81-NCU15WM474E6SRC	Murata Electronics	NTC (Negative Temperature Coefficient) Thermistors Learn More about Murata Electronics murata ncu auto thermistors	Datasheet	6.715In Stock	0,095 € 0,074 € 0,065 € 0,056 € View 0,049 € 0,046 € 0,042 € 0,038 €	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC,10K,5%,0603,125C,ECO NTCG163JH103JT1A TDK 1: 0,095 € 4.000In Stock	Mfr. Part No. NTCG163JH103JT1A Mouser Part No 810-NTCG163JH103JT1A	TDK	NTC (Negative Temperature Coefficient) Thermistors NTC,10K,5%,0603,125C,ECO Learn More about TDK NTCG smd ntc thermistors	Datasheet	4.000In Stock	Cut Tape 0,095 € 0,089 € 0,078 € 0,073 € Reel 0,052 € View 0,065 € 0,055 € 0,049 € 0,048 € MouseReel Available	Min.: 1 Mult.: 1 : 4.000

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