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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.
Industrial & Electrical Fuses 48V 100A EFUSE Vishay / Dale EFUSE-48V100A EFUSE-48V100A Vishay / Dale 1: $362.50 7In Stock	Mfr. Part No. EFUSE-48V100A Mouser Part No 71-EFUSE-48V100A	Vishay / Dale	Industrial & Electrical Fuses 48V 100A EFUSE Learn More about Vishay / Dale vishay 48v 100a efuse	Datasheet	7In Stock	$362.50 $362.49	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 1.5KW,30V 5%,UNIDIR,SMC TVS 1.5SMC30AHE3_A/I Vishay Semiconductors 1: $1.39 5,984In Stock	Mfr. Part No. 1.5SMC30AHE3_A/I Mouser Part No 78-1.5SMC30AHE3_A/I	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 1.5KW,30V 5%,UNIDIR,SMC TVS Learn More about Vishay Semiconductors vishay 1point5smc tvs diodes	Datasheet	5,984In Stock	Cut Tape $1.39 $0.874 $0.573 $0.421 Reel $0.352 View $0.383 $0.34 $0.295 $0.26	Min.: 1 Mult.: 1 : 3,500
ESD Protection Diodes / TVS Diodes Low Capacitance RailClamp 2-Line, 12V ESD Protection RCLAMP1222B.C Semtech 1: $1.43 5,926In Stock	Mfr. Part No. RCLAMP1222B.C Mouser Part No 947-RCLAMP1222B.C	Semtech	ESD Protection Diodes / TVS Diodes Low Capacitance RailClamp 2-Line, 12V ESD Protection Learn More about Semtech tvs esd suppressors	Datasheet	5,926In Stock	Cut Tape $1.43 $0.901 $0.671 $0.596 Reel $0.363 View $0.465 $0.408 $0.353 $0.328 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Fuse Holder SCWS,Terminals,Cover Assorted 01520001TXN941 Littelfuse 1: $19.99 1,546In Stock	Mfr. Part No. 01520001TXN941 Mouser Part No 576-01520001TXN941	Littelfuse	Fuse Holder SCWS,Terminals,Cover Assorted Learn More about Littelfuse _fuseholders	Datasheet	1,546In Stock	$19.99 $16.25 $15.21 $12.56 View $10.78 $9.69 $9.10 $8.98 Quote	Min.: 1 Mult.: 1
Surface Mount Fuses 50A 250V FAST ACTING 0456050.DRSDE Littelfuse 1: $7.66 6,780In Stock	Mfr. Part No. 0456050.DRSDE Mouser Part No 576-0456050.DRSDE	Littelfuse	Surface Mount Fuses 50A 250V FAST ACTING Learn More about Littelfuse 456de high current nano fuses	Datasheet	6,780In Stock	Cut Tape $7.66 $6.36 $5.87 $4.87 View Reel $3.07 $4.49 $4.03 $3.76 $3.51 $3.07 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Surface Mount Fuses 125V .125A HALIDE FREE 0466.125NRHF Littelfuse 1: $1.06 46,280In Stock	Mfr. Part No. 0466.125NRHF Mouser Part No 576-0466.125NRHF	Littelfuse	Surface Mount Fuses 125V .125A HALIDE FREE	Datasheet	46,280In Stock	Cut Tape $1.06 $0.962 $0.847 $0.75 View Reel $0.417 $0.649 $0.609 $0.548 $0.496 $0.417 $0.417 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Automotive Fuses 200A 32VDC Limiter Fuse 0CNL200.V Littelfuse 1: $40.06 866In Stock	Mfr. Part No. 0CNL200.V Mouser Part No 576-0CNL200.V	Littelfuse	Automotive Fuses 200A 32VDC Limiter Fuse	Datasheet	866In Stock	$40.06 $33.23 $21.95 $19.59 $19.29	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.00A 1206L300SLTHYR Littelfuse 1: $1.88 43,628In Stock	Mfr. Part No. 1206L300SLTHYR Mouser Part No 576-1206L300SLTHYR	Littelfuse	Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.00A Learn More about Littelfuse lorho	Datasheet	43,628In Stock	Cut Tape $1.88 $1.70 $1.44 $1.29 View Reel $0.801 $1.17 $1.07 $0.993 $0.928 $0.801 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Resettable Fuses - PPTC PTC 30V POLY 1812 HALOGEN-FREE .35A 1812L035/30DR Littelfuse 1: $1.92 19,218In Stock	Mfr. Part No. 1812L035/30DR Mouser Part No 576-1812L035/30DR	Littelfuse	Resettable Fuses - PPTC PTC 30V POLY 1812 HALOGEN-FREE .35A Learn More about Littelfuse 1812l fuses	Datasheet	19,218In Stock	Cut Tape $1.92 $1.73 $1.47 $1.34 Reel $0.827 View $1.20 $1.11 $0.823 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Fuse Holder CLASS G FUSE BLOCK 480V 60A 3 POLE LFG480603CDINR Littelfuse 1: $106.63 406In Stock	Mfr. Part No. LFG480603CDINR Mouser Part No 576-LFG480603CDINR	Littelfuse	Fuse Holder CLASS G FUSE BLOCK 480V 60A 3 POLE	Datasheet	406In Stock	$106.63 $92.25 $83.31 $72.08 $70.19	Min.: 1 Mult.: 1
Fuse Holder CLASS J FUSE BLOCK 600V 200A 3 POLE LFJ602003C Littelfuse 1: $512.77 79In Stock	Mfr. Part No. LFJ602003C Mouser Part No 576-LFJ602003C	Littelfuse	Fuse Holder CLASS J FUSE BLOCK 600V 200A 3 POLE	Datasheet	79In Stock	$512.77 $481.70 $443.83 Quote Quote	Min.: 1 Mult.: 1
Thyristor Surge Protection Devices - TSPD SIDACtor Bi 350V 3000A DO214AB RoHS P3800S3NLRP Littelfuse 1: $6.59 5,857In Stock	Mfr. Part No. P3800S3NLRP Mouser Part No 576-P3800S3NLRP	Littelfuse	Thyristor Surge Protection Devices - TSPD SIDACtor Bi 350V 3000A DO214AB RoHS Learn More about Littelfuse px0s3n	Datasheet	5,857In Stock	Cut Tape $6.59 $4.43 $3.20 $3.04 $2.88 Reel $2.88 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes SMA6J - CA 33V SMA6J33CA Littelfuse 1: $0.61 174,539In Stock	Mfr. Part No. SMA6J33CA Mouser Part No 576-SMA6J33CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMA6J - CA 33V	Datasheet	174,539In Stock	Cut Tape $0.61 $0.272 $0.238 $0.18 Reel $0.111 View $0.178 $0.153 $0.099 $0.096 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 1.3pF 7A UNIDIRECTIONAL SP4024-01FTG Littelfuse 1: $0.63 386,070In Stock	Mfr. Part No. SP4024-01FTG Mouser Part No 576-SP4024-01FTG	Littelfuse	ESD Protection Diodes / TVS Diodes 1.3pF 7A UNIDIRECTIONAL Learn More about Littelfuse sp402x arrays	Datasheet	386,070In Stock	Cut Tape $0.63 $0.343 $0.307 $0.262 Reel $0.168 View $0.252 $0.167 $0.157 $0.154 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Circuit Breakers 7A PUSH TO RESET W28-XQ1A-7 TE Connectivity / P&B 1: $4.34 8,367In Stock	Mfr. Part No. W28-XQ1A-7 Mouser Part No 655-W28-XQ1A-7	TE Connectivity / P&B	Circuit Breakers 7A PUSH TO RESET	Datasheet	8,367In Stock	$4.34 $3.79 $3.33 $3.14 View $3.02 $2.96 $2.95 $2.93	Min.: 1 Mult.: 1
SCRs THYRISTOR 1500V IGBT MMJX1H40N150 IXYS 1: $47.87 767In Stock	Mfr. Part No. MMJX1H40N150 Mouser Part No 747-MMJX1H40N150	IXYS	SCRs THYRISTOR 1500V IGBT	Datasheet	767In Stock	$47.87 $35.70	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS 300W 15V 7"RL SOT23 3L SDC15.TCT Semtech 1: $1.39 90,919In Stock	Mfr. Part No. SDC15.TCT Mouser Part No 947-SDC15.TCT	Semtech	ESD Protection Diodes / TVS Diodes TVS 300W 15V 7"RL SOT23 3L Learn More about Semtech tvs esd suppressors	Datasheet	90,919In Stock	Cut Tape $1.39 $0.968 $0.762 $0.656 Reel $0.404 View $0.524 $0.482 $0.376 $0.374 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes Automotive 22 V TVS for load dump in D2PAK LDP01-26AY STMicroelectronics 1: $4.28 12,347In Stock	Mfr. Part No. LDP01-26AY Mouser Part No 511-LDP01-26AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 22 V TVS for load dump in D2PAK	Datasheet	12,347In Stock	Cut Tape $4.28 $2.08 $1.76 $1.62 Reel $1.38 View $1.47 $1.33 $1.31 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000
ESD Protection Diodes / TVS Diodes 58Vso 45VAC 53A 5KP58CA Littelfuse 1: $4.13 16,507In Stock 3,200Expected 09/12/2026	Mfr. Part No. 5KP58CA Mouser Part No 576-5KP58CA	Littelfuse	ESD Protection Diodes / TVS Diodes 58Vso 45VAC 53A Learn More about Littelfuse 5kp tvs diodes	Datasheet	16,507In Stock 3,200Expected 09/12/2026	Cut Tape $4.13 $2.71 $2.10 $1.89 $1.46 Reel $1.27	Min.: 1 Mult.: 1 : 800
ESD Protection Diodes / TVS Diodes 210W TVS Diode Array SOT23-3 AQ24CANFD-02HTG Littelfuse 1: $0.89 158,287In Stock	Mfr. Part No. AQ24CANFD-02HTG Mouser Part No 576-AQ24CANFD-02HTG	Littelfuse	ESD Protection Diodes / TVS Diodes 210W TVS Diode Array SOT23-3 Learn More about Littelfuse aq24 tvs diode array	Datasheet	158,287In Stock	Cut Tape $0.89 $0.561 $0.366 $0.276 Reel $0.23 View $0.251 $0.224 $0.19 $0.174 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Fuse Holder Accessories Junction Block 3/8" Pass Thru Stud Red JBPT0001Z Littelfuse 1: $88.67 214In Stock	Mfr. Part No. JBPT0001Z Mouser Part No 576-JBPT0001Z	Littelfuse	Fuse Holder Accessories Junction Block 3/8" Pass Thru Stud Red Learn More about Littelfuse _fuseholders	Datasheet	214In Stock	$88.67 $88.52 $71.22 $66.09 View $62.70 Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes SMP Diode 0201 5vdc 10 pf <8v clamp@1a GG020105100N2P KYOCERA AVX 1: $0.39 845,840In Stock	Mfr. Part No. GG020105100N2P Mouser Part No 581-GG020105100N2P	KYOCERA AVX	ESD Protection Diodes / TVS Diodes SMP Diode 0201 5vdc 10 pf <8v clamp@1a Learn More about KYOCERA AVX avx giguard esd protection diodes	Datasheet	845,840In Stock	Cut Tape $0.39 $0.275 $0.134 $0.112 View Reel $0.051 $0.078 $0.067 $0.064 $0.057 $0.051 MouseReel Available	Min.: 1 Mult.: 1 : 15,000
Surface Mount Fuses 35A 250V FAST ACTING SF-3812F3500T-2 Bourns 1: $4.18 9,653In Stock	Mfr. Part No. SF-3812F3500T-2 Mouser Part No 652-SF-3812F3500T-2	Bourns	Surface Mount Fuses 35A 250V FAST ACTING Learn More about Bourns sf 3812f t smd fuses	Datasheet	9,653In Stock	Cut Tape $4.18 $3.51 $2.76 $2.45 Reel $1.74 View $2.20 $2.03 $1.87 $1.57 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Triacs THYR AND TRIACS BTA208S-800E,118 WeEn Semiconductors 1: $2.02 56,963In Stock	Mfr. Part No. BTA208S-800E,118 Mouser Part No 771-BTA208S-800E118	WeEn Semiconductors	Triacs THYR AND TRIACS Learn More about WeEn Semiconductors nxpbtaxxx	Datasheet	56,963In Stock	Cut Tape $2.02 $1.22 $0.822 $0.646 Reel $0.499 View $0.552 $0.42 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 400W -/+30kV -/+5% AEC-Q101 Qualified VTVS31ASMF-HM3-08 Vishay Semiconductors 1: $0.79 88,874In Stock	Mfr. Part No. VTVS31ASMF-HM3-08 Mouser Part No 78-VTVS31ASMF-HM3-08	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W -/+30kV -/+5% AEC-Q101 Qualified Learn More about Vishay Semiconductors vishay vtvsasmf tvsdiodes	Datasheet	88,874In Stock	Cut Tape $0.79 $0.393 $0.327 $0.272 Reel $0.214 View $0.257 $0.187 MouseReel Available	Min.: 1 Mult.: 1 : 3,000

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Circuit Protection

Types of Circuit Protection