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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.
Power Outlet Strips PDUMH20HV PDUMH20HV Tripp Lite Restricted Availability	Mfr. Part No. PDUMH20HV Mouser Part No 545-PDUMH20HV	Tripp Lite	Power Outlet Strips PDUMH20HV Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability
Circuit Protection Kits Tgc/Mgde-Ms5 12-24V Time Delay 6' 500A 08075160 Littelfuse 1: $467.23 5In Stock	Mfr. Part No. 08075160 Mouser Part No 576-08075160	Littelfuse	Circuit Protection Kits Tgc/Mgde-Ms5 12-24V Time Delay 6' 500A Learn More about Littelfuse relays switches cvp	Datasheet	5In Stock	$467.23 $387.04 $336.07	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors PTCCPLDD5D00A019265140Te3 Vishay / BC Components PTCCL05H190HTE PTCCL05H190HTE Vishay / BC Components 1: $1.44 3,003In Stock	Mfr. Part No. PTCCL05H190HTE Mouser Part No 594-PTCCL05H190HTE	Vishay / BC Components	PTC (Positive Temperature Coefficient) Thermistors PTCCPLDD5D00A019265140Te3	Datasheet	3,003In Stock	$1.44 $1.08 $0.861 $0.809 View $0.789 $0.664 $0.607 $0.594	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 1500W 16V Unidirect 1N6276A-E3/54 Vishay Semiconductors 1: $1.59 6,117In Stock	Mfr. Part No. 1N6276A-E3/54 Mouser Part No 625-1N6276A-E3/54	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 1500W 16V Unidirect Learn More about Vishay Semiconductors vishay semi transzorb transient voltage suppressors	Datasheet	6,117In Stock	Cut Tape $1.59 $0.995 $0.834 $0.652 Reel $0.504 View $0.504 $0.459 $0.383	Min.: 1 Mult.: 1 : 1,400
ESD Protection Diodes / TVS Diodes 600W 350V Bidirect P6KE350CA-E3/54 Vishay Semiconductors 1: $2.15 1,643In Stock	Mfr. Part No. P6KE350CA-E3/54 Mouser Part No 625-P6KE350CA-E3	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W 350V Bidirect Learn More about Vishay Semiconductors vishay tvs esd diodes	Datasheet	1,643In Stock	Cut Tape $2.15 $1.37 $1.10 $0.916 Reel $0.623 View $0.736 $0.657 $0.611 $0.595	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors 50kOhm 3% Lug Term B25/50:3950K+-3% NTCGP3UH503HCZCCA TDK 1: $6.67 1,000In Stock	Mfr. Part No. NTCGP3UH503HCZCCA Mouser Part No 810-NTCGP3UH503HCZCC	TDK	NTC (Negative Temperature Coefficient) Thermistors 50kOhm 3% Lug Term B25/50:3950K+-3% Learn More about TDK ntcgp temperature sensors	Datasheet	1,000In Stock	$6.67 $6.01 $5.77 $5.47 View $5.27 $5.09 $4.72 $4.57	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC Thermistor 0603 4K7 J60 B-3650 B57301V2472J60 TDK 1: $0.39 11,747In Stock 8,000Expected 23/11/2026	Mfr. Part No. B57301V2472J60 Mouser Part No 871-B57301V2472J60	TDK	NTC (Negative Temperature Coefficient) Thermistors NTC Thermistor 0603 4K7 J60 B-3650 Learn More about TDK b573xv2 ntc thermistors	Datasheet	11,747In Stock 8,000Expected 23/11/2026	Cut Tape $0.39 $0.335 $0.295 $0.237 Reel $0.162 View $0.196 $0.164 $0.156 $0.138 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Circuit Breakers XT4H 250 TMF 200-2000 3P F F UL/CSA XT4HU3200AFF000XXX ABB 1: $1,823.97 3In Stock	Mfr. Part No. XT4HU3200AFF000XXX Mouser Part No 894-XT4HU3200AFF000X	ABB	Circuit Breakers XT4H 250 TMF 200-2000 3P F F UL/CSA Learn More about ABB sace tmax xt circuit breakers	Datasheet	3In Stock	$1,823.97	Min.: 1 Mult.: 1
Circuit Breakers RKR 3VA51 3P 15A 65KA FTAM 3VA51956EC310AA0 Siemens 1: $1,086.56 1In Stock	Mfr. Part No. 3VA51956EC310AA0 Mouser Part No 982-3VA51956EC310AA0	Siemens	Circuit Breakers RKR 3VA51 3P 15A 65KA FTAM Learn More about Siemens 3va molded case circuit breakers	Datasheet	1In Stock	$1,086.56	Min.: 1 Mult.: 1
Circuit Breaker Accessories CIRCUIT BREAKER OF WIRE HARNESS S434500 Schneider Electric 1: $543.92 4In Stock New At Mouser	Mfr. Part No. S434500 Mouser Part No 996-S434500 New At Mouser	Schneider Electric	Circuit Breaker Accessories CIRCUIT BREAKER OF WIRE HARNESS	Datasheet	4In Stock	$543.92	Min.: 1 Mult.: 1
Circuit Breaker Accessories MPR SURGE SUPPRESSOR MPR-SS L-Com 1: $168.94 5In Stock New At Mouser	Mfr. Part No. MPR-SS Mouser Part No 17-MPR-SS New At Mouser	L-Com	Circuit Breaker Accessories MPR SURGE SUPPRESSOR		5In Stock	$168.94 $147.74 $145.45 $142.42 View Quote	Min.: 1 Mult.: 1
Fuse Holder CFB1 FUSE BLOCK, NO FUSE CFB1-NF Bourns 1: $51.93 21In Stock	Mfr. Part No. CFB1-NF Mouser Part No 652-CFB1-NF	Bourns	Fuse Holder CFB1 FUSE BLOCK, NO FUSE Learn More about Bourns cfb riedon fuse blocks	Datasheet	21In Stock	$51.93 $43.07 $39.73 $29.80 View $29.29 $28.79	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 400W,16V 5%,BIDIR,SMA TVS P4SMA16CAHM3_A/I Vishay Semiconductors 1: $1.00 7,180In Stock	Mfr. Part No. P4SMA16CAHM3_A/I Mouser Part No 78-P4SMA16CAHM3_A/I	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,16V 5%,BIDIR,SMA TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	7,180In Stock	Cut Tape $1.00 $0.622 $0.406 $0.306 View Reel $0.196 $0.278 $0.255 $0.249 $0.196	Min.: 1 Mult.: 1 : 7,500
ESD Protection Diodes / TVS Diodes 600W,33V 5%,UNIDIR,SMB TVS Vishay Semiconductors SM6T33AHE3_B/I SM6T33AHE3_B/I Vishay Semiconductors 1: $0.91 2,823In Stock	Mfr. Part No. SM6T33AHE3_B/I Mouser Part No 78-SM6T33AHE3BI	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W,33V 5%,UNIDIR,SMB TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	2,823In Stock	Cut Tape $0.91 $0.567 $0.37 $0.279 Reel $0.233 View $0.254 $0.179	Min.: 1 Mult.: 1 : 3,200
Circuit Breakers MotBreak GV4PE Therm/Mag 115A 50kA Elink GV4PE115N Schneider Electric 1: $1,031.22 1In Stock New At Mouser	Mfr. Part No. GV4PE115N Mouser Part No 996-GV4PE115N New At Mouser	Schneider Electric	Circuit Breakers MotBreak GV4PE Therm/Mag 115A 50kA Elink	Datasheet	1In Stock	$1,031.22	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 4-LINE 3.3V 0.3PF ESD RCLAMP03354P.N Semtech 1: $1.45 44,345In Stock NRND	Mfr. Part No. RCLAMP03354P.N Mouser Part No 947-RCLAMP03354P.N NRND	Semtech	ESD Protection Diodes / TVS Diodes 4-LINE 3.3V 0.3PF ESD Learn More about Semtech hdmi esd protection	Datasheet	44,345In Stock	Cut Tape $1.45 $0.913 $0.68 $0.604 View Reel $0.323 $0.472 $0.415 $0.395 $0.36 $0.323 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Fuse Holder 5 x 20mm SNAP FIT PANEL 2.0-3.0mm FX0458/2 Bulgin 1: $8.91 399In Stock	Mfr. Part No. FX0458/2 Mouser Part No 422-FX0458/2	Bulgin	Fuse Holder 5 x 20mm SNAP FIT PANEL 2.0-3.0mm	Datasheet	399In Stock	$8.91 $7.39 $6.82 $4.01 View $3.91 $3.90	Min.: 1 Mult.: 1
Circuit Breakers Miniaturised double pole thermal circuit breaker with push-to-reset tease-free, trip-free, snap action mechanism (R-type TO CBE to EN 60934). Threadneck panel mounting. Suitable for line and neutral switching - the thermal actuator op 1140-G151-P7M1-15A E-T-A 1: $34.87 65In Stock	Mfr. Part No. 1140-G151-P7M1-15A Mouser Part No 457-1140G151P7M115A	E-T-A	Circuit Breakers Miniaturised double pole thermal circuit breaker with push-to-reset tease-free, trip-free, snap action mechanism (R-type TO CBE to EN 60934). Threadneck panel mounting. Suitable for line and neutral switching - the thermal actuator op	Datasheet	65In Stock	$34.87 $29.94 $27.72 $24.53 View $22.39 $20.08 $19.63 Quote	Min.: 1 Mult.: 1
Circuit Breakers Single, two and three pole rocker switch/thermal trip free circuit breakers (S-type TO CBE to EN 60934) of compact design for snap-in panel mounting. Available either with protection on one/both/all poles or, in the case of the double 3130-F120-P7T1-W14QR6-12A E-T-A 1: $52.67 190In Stock	Mfr. Part No. 3130-F120-P7T1-W14QR6-12A Mouser Part No 457-120P7T1W14QR612A	E-T-A	Circuit Breakers Single, two and three pole rocker switch/thermal trip free circuit breakers (S-type TO CBE to EN 60934) of compact design for snap-in panel mounting. Available either with protection on one/both/all poles or, in the case of the double	Datasheet	190In Stock	$52.67 $47.05 $41.28 $37.92 View $35.98 $35.75 Quote	Min.: 1 Mult.: 1
Circuit Breakers The 3120-N 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 is ideally suited for overload prot 3120-N321-P7T1-W01D-3A E-T-A 1: $34.20 172In Stock	Mfr. Part No. 3120-N321-P7T1-W01D-3A Mouser Part No 457-N321P7T1W01D3	E-T-A	Circuit Breakers The 3120-N 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 is ideally suited for overload prot Learn More about E-T-A e t a 3120 n thermal circuit breakers	Datasheet	172In Stock	$34.20 $28.38 $26.17 $21.68 View $19.98 $17.91 $16.78	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS array 6 line Uni-dir, 300W (8/20us), Stand-off voltage = 3.3V SMDA03-6e3/TR7 Microchip Technology 1: $1.30 1,237In Stock	Mfr. Part No. SMDA03-6e3/TR7 Mouser Part No 494-SMDA03-6E3/TR7	Microchip Technology	ESD Protection Diodes / TVS Diodes TVS array 6 line Uni-dir, 300W (8/20us), Stand-off voltage = 3.3V Learn More about Microchip Technology microchip high reliability	Datasheet	1,237In Stock	Cut Tape $1.30 Reel $1.09 MouseReel Available	Min.: 1 Mult.: 1 : 500
Surface Mount Fuses 1.5A 350 VAC 72 VCD 0679H1500-05 Bel Fuse 1: $0.45 13,517In Stock	Mfr. Part No. 0679H1500-05 Mouser Part No 530-0679H1500-05	Bel Fuse	Surface Mount Fuses 1.5A 350 VAC 72 VCD Learn More about Bel Fuse bel 0679h fuse	Datasheet	13,517In Stock	Cut Tape $0.45 $0.407 $0.338 $0.312 View Reel $0.182 $0.281 $0.259 $0.239 $0.225 $0.182 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses 2410 SMD AEC-Q200 Compliant Fuse Slow Blow 12A Silver Plating Tape and Reel (5000 pcs.) 0680H9120-05 Bel Fuse 1: $0.73 5,571In Stock	Mfr. Part No. 0680H9120-05 Mouser Part No 530-0680H9120-05	Bel Fuse	Surface Mount Fuses 2410 SMD AEC-Q200 Compliant Fuse Slow Blow 12A Silver Plating Tape and Reel (5000 pcs.) Learn More about Bel Fuse 0680h brick fuses	Datasheet	5,571In Stock	Cut Tape $0.73 $0.672 $0.558 $0.515 View Reel $0.303 $0.469 $0.432 $0.399 $0.331 $0.303	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses 0603 SMD Fuse. Slow Blow 3.5A 0ABB-3500-TM Bel Fuse 1: $0.78 4,039In Stock	Mfr. Part No. 0ABB-3500-TM Mouser Part No 530-0ABB-3500-TM	Bel Fuse	Surface Mount Fuses 0603 SMD Fuse. Slow Blow 3.5A Learn More about Bel Fuse 0abb time delay fuses	Datasheet	4,039In Stock	Cut Tape $0.78 $0.657 $0.575 $0.545 View Reel $0.351 $0.502 $0.463 $0.42 $0.351	Min.: 1 Mult.: 1 : 5,000
Cartridge Fuses FUSE, CERAMIC TUBE 1.25A, 1000VAC/VDC 0ADBC1250-BE Bel Fuse 1: $6.62 974In Stock	Mfr. Part No. 0ADBC1250-BE Mouser Part No 530-0ADBC1250-BE	Bel Fuse	Cartridge Fuses FUSE, CERAMIC TUBE 1.25A, 1000VAC/VDC Learn More about Bel Fuse bel 0adbc fuses	Datasheet	974In Stock	$6.62 $5.50 $5.07 $4.21 View $3.88 $3.49 $3.22 $2.92 $2.83	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection