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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 508,DM,24VDC,CL,2-3-3.6,CL2,ATX REX22D-TD2-100-DC24V-2A/3A/3,6A-CL2-E E-T-A 1: $127.47 4In Stock New Product	Mfr. Part No. REX22D-TD2-100-DC24V-2A/3A/3,6A-CL2-E Mouser Part No 457-REX22DTD22336CLE New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,2-3-3.6,CL2,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	4In Stock	$127.47 $106.22 $102.32 $92.79 View $89.03 Quote	Min.: 1 Mult.: 1
Circuit Breakers PDG2,3P,20A,25KA/480V,FXFXTMTU PDG23F0020TFFJ Eaton Electrical 1: $738.62 2In Stock New Product	Mfr. Part No. PDG23F0020TFFJ Mouser Part No 504-PDG23F0020TFFJ New Product	Eaton Electrical	Circuit Breakers PDG2,3P,20A,25KA/480V,FXFXTMTU	Datasheet	2In Stock	$738.62 $611.87 $563.91	Min.: 1 Mult.: 1
Circuit Breakers PDG2,3P,200A,25KA/480V,FXFXTMTU PDG23F0200TFFJ Eaton Electrical 1: $1,339.55 1In Stock New Product	Mfr. Part No. PDG23F0200TFFJ Mouser Part No 504-PDG23F0200TFFJ New Product	Eaton Electrical	Circuit Breakers PDG2,3P,200A,25KA/480V,FXFXTMTU	Datasheet	1In Stock	$1,339.55	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors ESA PROBE-RTD PT1000 3000mm ENG MODEL 10219128-03 TE Connectivity 1: $662.37 2In Stock New Product	Mfr. Part No. 10219128-03 Mouser Part No 571-10219128-03 New Product	TE Connectivity	NTC (Negative Temperature Coefficient) Thermistors ESA PROBE-RTD PT1000 3000mm ENG MODEL Learn More about TE Connectivity te surface mount temperature sensors	Datasheet	2In Stock	$662.37 $505.07 View Quote	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC Mini Ni 0.4 ld 10K 1% blk 0.4e/1e A NTCLE213E3103FHB0A Vishay / BC Components 1: $1.93 422In Stock 1,500Expected 19/11/2026 New Product	Mfr. Part No. NTCLE213E3103FHB0A Mouser Part No 594-NTCLE213E313FHB New Product	Vishay / BC Components	NTC (Negative Temperature Coefficient) Thermistors NTC Mini Ni 0.4 ld 10K 1% blk 0.4e/1e A	Datasheet	422In Stock 1,500Expected 19/11/2026	$1.93 $1.45 $1.16 $1.09 View $1.06 $0.89 $0.82 $0.755	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC Mini Ni 0.4 ld 12K 2% blk 0.4e/1e A NTCLE213E3123GMB0A Vishay / BC Components 1: $1.17 1,899In Stock New Product	Mfr. Part No. NTCLE213E3123GMB0A Mouser Part No 594-NTCLE23E323GMB New Product	Vishay / BC Components	NTC (Negative Temperature Coefficient) Thermistors NTC Mini Ni 0.4 ld 12K 2% blk 0.4e/1e A	Datasheet	1,899In Stock	$1.17 $0.877 $0.702 $0.66 View $0.644 $0.54 $0.508 $0.466	Min.: 1 Mult.: 1
Fuse Holder FB1 FUSE BLOCK 110A FUSE FB1-110 Bourns 1: $75.81 117In Stock	Mfr. Part No. FB1-110 Mouser Part No 652-FB1-110	Bourns	Fuse Holder FB1 FUSE BLOCK 110A FUSE	Datasheet	117In Stock	$75.81 $62.88 $58.00 $48.00 View $44.20 $43.58	Min.: 1 Mult.: 1
Thermal Cut-offs THERMAL PROTECTOR RP-1B Sensata Technologies 1: $34.88 358In Stock New Product	Mfr. Part No. RP-1B Mouser Part No 682-RP-1B New Product	Sensata Technologies	Thermal Cut-offs THERMAL PROTECTOR Learn More about Sensata Technologies sensata rp thermal protectors	Datasheet	358In Stock	$34.88	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB SMF10A-HE3_A08 Vishay Semiconductors 1: $0.68 30,000In Stock 30,000On Order	Mfr. Part No. SMF10A-HE3_A08 Mouser Part No 78-SMF10A-HE3A08	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB	Datasheet	30,000In Stock 30,000On Order	Cut Tape $0.68 $0.427 $0.273 $0.204 Reel $0.141 View $0.165 $0.139 $0.118 $0.112	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 400W,30V 5%,BIDIR,SMA TVS P4SMA30CAHE3_A/I Vishay Semiconductors 1: $0.80 17,246In Stock	Mfr. Part No. P4SMA30CAHE3_A/I Mouser Part No 78-P4SMA30CAHE3_A/I	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,30V 5%,BIDIR,SMA TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	17,246In Stock	Cut Tape $0.80 $0.497 $0.325 $0.245 Reel $0.168 View $0.223 $0.204 $0.199 $0.155	Min.: 1 Mult.: 1 : 7,500
Power Outlet Strips 12 Outlet (Rt Angle) RS1215-RA Tripp Lite Restricted Availability	Mfr. Part No. RS1215-RA Mouser Part No 545-RS1215-RA	Tripp Lite	Power Outlet Strips 12 Outlet (Rt Angle) Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability
Circuit Breaker Accessories MOE XT5 110 125V AC/DC AUTO-RESET KXT5MOE110-125 ABB 1: $1,540.96 19In Stock New At Mouser	Mfr. Part No. KXT5MOE110-125 Mouser Part No 894-KXT5MOE110-125 New At Mouser	ABB	Circuit Breaker Accessories MOE XT5 110 125V AC/DC AUTO-RESET	Datasheet	19In Stock	$1,540.96	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 600W,33V 5%,UNIDIR,SMB TVS Vishay Semiconductors SM6T33AHE3_B/H SM6T33AHE3_B/H Vishay Semiconductors 1: $0.91 16,883In Stock	Mfr. Part No. SM6T33AHE3_B/H Mouser Part No 78-SM6T33AHE3BH	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W,33V 5%,UNIDIR,SMB TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	16,883In Stock	Cut Tape $0.91 $0.567 $0.37 $0.246 Reel $0.232 View $0.222 $0.202 $0.185 $0.179	Min.: 1 Mult.: 1 : 750
ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB SMF12A-HE3_A08 Vishay Semiconductors 1: $0.68 26,704In Stock	Mfr. Part No. SMF12A-HE3_A08 Mouser Part No 78-SMF12A-HE3A08	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB	Datasheet	26,704In Stock	Cut Tape $0.68 $0.308 $0.27 $0.204 Reel $0.141 View $0.173 $0.139 $0.118 $0.115 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Surface Mount Fuses .028A 7.5mOhm Green LGA Miniature 0402 F0402G0R02FNTR KYOCERA AVX 1: $0.96 68,771In Stock	Mfr. Part No. F0402G0R02FNTR Mouser Part No 581-F0402G0R02FNTR	KYOCERA AVX	Surface Mount Fuses .028A 7.5mOhm Green LGA Miniature 0402	Datasheet	68,771In Stock	Cut Tape $0.96 $0.763 $0.643 $0.60 Reel $0.60 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, GDT technology up to 2.5 GHz 3402.26.0002 HUBER+SUHNER 1: $582.39 50In Stock	Mfr. Part No. 3402.26.0002 Mouser Part No 455-3402260002	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	50In Stock	$582.39 $349.07 Quote Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial 30KPA270CA Littelfuse 1: $31.80 761In Stock	Mfr. Part No. 30KPA270CA Mouser Part No 576-30KPA270CA	Littelfuse	ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial Learn More about Littelfuse tvsdiodes	Datasheet	761In Stock	Cut Tape $31.80 $25.17 $23.18 $21.99 Reel $21.55 Quote Quote	Min.: 1 Mult.: 1 : 800
ESD Protection Diodes / TVS Diodes 600W,14V 5%,UNIDIR,SMB TVS SMBJ14AHE3_B/I Vishay Semiconductors 1: $0.91 8,748In Stock	Mfr. Part No. SMBJ14AHE3_B/I Mouser Part No 78-SMBJ14AHE3BI	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W,14V 5%,UNIDIR,SMB TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	8,748In Stock	Cut Tape $0.91 $0.567 $0.37 $0.279 Reel $0.233 View $0.254 $0.215 $0.179	Min.: 1 Mult.: 1 : 3,200
ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB SMF28A-HE3_A08 Vishay Semiconductors 1: $0.68 17,155In Stock	Mfr. Part No. SMF28A-HE3_A08 Mouser Part No 78-SMF28A-HE3A08	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB	Datasheet	17,155In Stock	Cut Tape $0.68 $0.427 $0.273 $0.204 Reel $0.141 View $0.165 $0.139 $0.118 $0.102	Min.: 1 Mult.: 1 : 3,000
Thermal Cut-offs THERMAL PROTECTOR RP-12A Sensata Technologies 1: $15.60 525In Stock 1,000Expected 18/11/2026 New Product	Mfr. Part No. RP-12A Mouser Part No 874-RP-12A New Product	Sensata Technologies	Thermal Cut-offs THERMAL PROTECTOR Learn More about Sensata Technologies sensata rp thermal protectors	Datasheet	525In Stock 1,000Expected 18/11/2026	$15.60	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial 30KPA260CA Littelfuse 1: $31.80 727In Stock	Mfr. Part No. 30KPA260CA Mouser Part No 576-30KPA260CA	Littelfuse	ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial Learn More about Littelfuse tvsdiodes	Datasheet	727In Stock	Cut Tape $31.80 $25.17 $23.18 $21.99 $21.85 Reel $21.41	Min.: 1 Mult.: 1 : 800
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 350V GDT35-35-S1-RP Bourns 1: $1.78 1,571In Stock	Mfr. Part No. GDT35-35-S1-RP Mouser Part No 652-GDT35-35-S1-RP	Bourns	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 350V Learn More about Bourns gdt35	Datasheet	1,571In Stock	Cut Tape $1.78 $1.64 $1.36 $1.26 Reel $0.903 View $1.13 $1.04 $0.839 $0.797 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 420V GDT35-42-S1-RP Bourns 1: $1.78 1,950In Stock	Mfr. Part No. GDT35-42-S1-RP Mouser Part No 652-GDT35-42-S1-RP	Bourns	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 420V Learn More about Bourns gdt35	Datasheet	1,950In Stock	Cut Tape $1.78 $1.64 $1.36 $1.26 Reel $0.888 View $1.13 $1.04 $0.839 $0.797 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 470V GDT35-47-S1-RP Bourns 1: $1.78 1,682In Stock	Mfr. Part No. GDT35-47-S1-RP Mouser Part No 652-GDT35-47-S1-RP	Bourns	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 470V Learn More about Bourns gdt35	Datasheet	1,682In Stock	Cut Tape $1.78 $1.64 $1.36 $1.26 Reel $0.888 View $1.13 $1.04 $0.839 $0.797 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
NTC (Negative Temperature Coefficient) Thermistors 10KOHM 1% 3988K LEAD FREE B57850T0103F000 TDK 1: $5.12 11,033In Stock	Mfr. Part No. B57850T0103F000 Mouser Part No 871-B57850T103F000	TDK	NTC (Negative Temperature Coefficient) Thermistors 10KOHM 1% 3988K LEAD FREE Learn More about TDK epcos t850 ntc thermistors	Datasheet	11,033In Stock	$5.12 $4.59 $4.40 $4.17 View $4.01 $3.87 $3.58 $3.47	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection