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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.
ESD Protection Diodes / TVS Diodes Automotive High Surge ESD - DFN1006-2L,Bi,5V PEC3205M1Q-AU_R1_005A1 Panjit 1: $0.13 18,119In Stock New Product	Mfr. Part # PEC3205M1Q-AU_R1_005A1 Mouser Part # 241-PEC3205M1QAUR15A New Product	Panjit	ESD Protection Diodes / TVS Diodes Automotive High Surge ESD - DFN1006-2L,Bi,5V	Datasheet	18,119In Stock	Cut Tape $0.13 $0.112 $0.061 $0.038 Reel $0.016 View $0.026 $0.022 $0.02 $0.014 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 400W,16V5%,SMFBIDIRTVS 4SMF16CA-M3/I Vishay Semiconductors 1: $0.49 7,916In Stock New Product	Mfr. Part # 4SMF16CA-M3/I Mouser Part # 78-4SMF16CA-M3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,16V5%,SMFBIDIRTVS	Datasheet	7,916In Stock	Cut Tape $0.49 $0.338 $0.166 $0.138 Reel $0.063 View $0.096 $0.084 $0.076 $0.058	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes TVS AXIAL KA RATED - 3KA 430V BI AK3-430C-A Littelfuse 1: $94.84 4In Stock 56Expected 12/15/2026 New Product	Mfr. Part # AK3-430C-A Mouser Part # 576-AK3-430C-A New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS AXIAL KA RATED - 3KA 430V BI Learn More about Littelfuse ak3 a tvs diodes	Datasheet	4In Stock 56Expected 12/15/2026	$94.84 $86.59	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 400W,17V5%,SMFBIDIRTVS 4SMF17CA-M3/I Vishay Semiconductors 1: $0.49 7,840In Stock New Product	Mfr. Part # 4SMF17CA-M3/I Mouser Part # 78-4SMF17CA-M3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,17V5%,SMFBIDIRTVS	Datasheet	7,840In Stock	Cut Tape $0.49 $0.338 $0.166 $0.138 Reel $0.063 View $0.096 $0.084 $0.076 $0.058	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 400W,18V5%,SMFBIDIRTVS 4SMF18CA-M3/I Vishay Semiconductors 1: $0.49 7,632In Stock New Product	Mfr. Part # 4SMF18CA-M3/I Mouser Part # 78-4SMF18CA-M3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,18V5%,SMFBIDIRTVS	Datasheet	7,632In Stock	Cut Tape $0.49 $0.338 $0.166 $0.138 Reel $0.063 View $0.096 $0.084 $0.076 $0.058	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes TVS 6KA RATED 450V BI AXIAL AK8-450C-FB Littelfuse 1: $134.36 4In Stock 56Expected 12/15/2026 New Product	Mfr. Part # AK8-450C-FB Mouser Part # 576-AK8-450C-FB New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 6KA RATED 450V BI AXIAL Learn More about Littelfuse ak8 fb tvs diodes	Datasheet	4In Stock 56Expected 12/15/2026	$134.36 $122.67	Min.: 1 Mult.: 1
NTC Thermistors NTC LUG M5 10k 1% G24 64mm A NTCALUG54A103F640A Vishay / BC Components 1: $3.09 333In Stock New Product	Mfr. Part # NTCALUG54A103F640A Mouser Part # 594-NTCALUG54A103F6 New Product	Vishay / BC Components	NTC Thermistors NTC LUG M5 10k 1% G24 64mm A	Datasheet	333In Stock	$3.09 $2.32 $2.07 $1.96 View $1.91 $1.90 $1.65 $1.61 $1.55	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 350W,58V5%,SMFBIDIRTVS 4SMF58CAHM3/I Vishay Semiconductors 1: $0.48 6,969In Stock New Product	Mfr. Part # 4SMF58CAHM3/I Mouser Part # 78-4SMF58CAHM3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 350W,58V5%,SMFBIDIRTVS	Datasheet	6,969In Stock	Cut Tape $0.48 $0.329 $0.186 $0.147 Reel $0.09 View $0.124 $0.105 $0.10 $0.081	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 400W,24V5%,SMFBIDIRTVS 4SMF24CA-M3/I Vishay Semiconductors 1: $0.50 7,483In Stock 20,000Expected 11/20/2026 New Product	Mfr. Part # 4SMF24CA-M3/I Mouser Part # 78-4SMF24CA-M3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,24V5%,SMFBIDIRTVS	Datasheet	7,483In Stock 20,000Expected 11/20/2026	Cut Tape $0.50 $0.351 $0.172 $0.144 Reel $0.066 View $0.10 $0.087 $0.078 $0.06	Min.: 1 Mult.: 1 : 10,000
Power Outlet Strips 13-Outlet Rackmount PDU, 1U Server Power Strip/Supply, 1x Front & 12x Rear Ports 1315B8H-RACK-PDU StarTech 1: $160.50 4In Stock New Product	Mfr. Part # 1315B8H-RACK-PDU Mouser Part # 179-1315B8HRACKPDU New Product	StarTech	Power Outlet Strips 13-Outlet Rackmount PDU, 1U Server Power Strip/Supply, 1x Front & 12x Rear Ports	Datasheet	4In Stock	$160.50 $141.01 $136.00 $135.98 View Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 400W,10V5%,SMFBIDIRTVS 4SMF10CA-M3/I Vishay Semiconductors 1: $0.49 7,927In Stock New Product	Mfr. Part # 4SMF10CA-M3/I Mouser Part # 78-4SMF10CA-M3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,10V5%,SMFBIDIRTVS	Datasheet	7,927In Stock	Cut Tape $0.49 $0.338 $0.166 $0.138 Reel $0.063 View $0.096 $0.084 $0.076 $0.058	Min.: 1 Mult.: 1 : 10,000
NTC Thermistors SMD NTC Thermistor 1206 5kOhm 3% B-3455 HT Series B57621C5502H062 TDK 1: $0.82 2,800In Stock New Product	Mfr. Part # B57621C5502H062 Mouser Part # 871-B57621C5502H062 New Product	TDK	NTC Thermistors SMD NTC Thermistor 1206 5kOhm 3% B-3455 HT Series	Datasheet	2,800In Stock	Cut Tape $0.82 $0.772 $0.629 $0.591 View Reel $0.427 $0.576 $0.504 $0.484 $0.427 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes 400W,20V5%,SMFBIDIRTVS 4SMF20CA-M3/I Vishay Semiconductors 1: $0.49 7,871In Stock New Product	Mfr. Part # 4SMF20CA-M3/I Mouser Part # 78-4SMF20CA-M3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,20V5%,SMFBIDIRTVS	Datasheet	7,871In Stock	Cut Tape $0.49 $0.338 $0.166 $0.138 Reel $0.063 View $0.096 $0.084 $0.076 $0.058	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 400W,26V5%,SMFBIDIRTVS 4SMF26CA-M3/I Vishay Semiconductors 1: $0.50 19,234In Stock New Product	Mfr. Part # 4SMF26CA-M3/I Mouser Part # 78-4SMF26CA-M3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,26V5%,SMFBIDIRTVS	Datasheet	19,234In Stock	Cut Tape $0.50 $0.351 $0.172 $0.144 Reel $0.066 View $0.10 $0.087 $0.078 $0.06	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes Diode, TVS, 8W, 30V, 5%, BIDIR, PAR, SMD (DO-218AC), auto-grade SM8S30CAHM3_A/I Vishay Semiconductors 1: $5.07 476In Stock 20Expected 10/27/2026 New Product	Mfr. Part # SM8S30CAHM3_A/I Mouser Part # 78-SM8S30CAHM3_A/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes Diode, TVS, 8W, 30V, 5%, BIDIR, PAR, SMD (DO-218AC), auto-grade	Datasheet	476In Stock 20Expected 10/27/2026	Cut Tape $5.07 $3.36 $2.70 $2.40 Reel $2.04 View $1.95 $1.92 MouseReel Available	Min.: 1 Mult.: 1 : 750
ESD Protection Diodes / TVS Diodes TVS 5KW 18V 5%UNI DO-214AB TR13 RoHS Littelfuse 5.0SMDJ18A-E 5.0SMDJ18A-E Littelfuse 1: $2.79 3,000In Stock New Product	Mfr. Part # 5.0SMDJ18A-E Mouser Part # 576-5.0SMDJ18AE New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 5KW 18V 5%UNI DO-214AB TR13 RoHS	Datasheet	3,000In Stock	Cut Tape $2.79 $1.79 $1.45 $1.22 Reel $0.845 View $0.959 $0.878 $0.768 $0.747	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 22V, 16A unidirectional self-controlled TVS in 0402 TVS221SC-1T2 STMicroelectronics 1: $1.02 3,500In Stock New Product	Mfr. Part # TVS221SC-1T2 Mouser Part # 511-TVS221SC-1T2 New Product	STMicroelectronics	ESD Protection Diodes / TVS Diodes 22V, 16A unidirectional self-controlled TVS in 0402 Learn More about STMicroelectronics st tvs221sc 1t2 unidirectional single line tvs	Datasheet	3,500In Stock	Cut Tape $1.02 $0.638 $0.416 $0.314 View Reel $0.198 $0.285 $0.262 $0.255 $0.217 $0.198 MouseReel Available	Min.: 1 Mult.: 1 : 15,000
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A ESR3XLUB0250XI Littelfuse 1: $522.42 3In Stock New Product	Mfr. Part # ESR3XLUB0250XI Mouser Part # 576-ESR3XLUB0250XI New Product	Littelfuse	Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A Learn More about Littelfuse esr high speed square body fuses	Datasheet	3In Stock	$522.42 $428.96 $390.36	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 7V & 12V 75pF 20A SOT23-3L SC712-02HTG Littelfuse 1: $1.30 1,982In Stock 100Expected 11/17/2026 New Product	Mfr. Part # SC712-02HTG Mouser Part # 576-SC712-02HTG New Product	Littelfuse	ESD Protection Diodes / TVS Diodes 7V & 12V 75pF 20A SOT23-3L Learn More about Littelfuse tvs spa diode arrays	Datasheet	1,982In Stock 100Expected 11/17/2026	Cut Tape $1.30 $0.817 $0.536 $0.418 Reel $0.323 View $0.378 $0.303 $0.29 $0.285 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
NTC Thermistors NTC SMD 0603 10kO 2% B25/50 3380K BTN06G103G3HF1T0A Bourns 1: $0.13 8,000In Stock New Product	Mfr. Part # BTN06G103G3HF1T0A Mouser Part # 652-BTN061033HF1T0A New Product	Bourns	NTC Thermistors NTC SMD 0603 10kO 2% B25/50 3380K Learn More about Bourns btn06g ntc thermistors	Datasheet	8,000In Stock	Cut Tape $0.13 $0.118 $0.104 $0.085 Reel $0.064 View $0.075 $0.071 $0.061 $0.059 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC Thermistors NTC SMD 0603 47kO 3% B25/50 4050K BTN06G473H4AF1T00 Bourns 1: $0.13 8,000In Stock New Product	Mfr. Part # BTN06G473H4AF1T00 Mouser Part # 652-BTN06473H4AF1T00 New Product	Bourns	NTC Thermistors NTC SMD 0603 47kO 3% B25/50 4050K Learn More about Bourns btn06g ntc thermistors	Datasheet	8,000In Stock	Cut Tape $0.13 $0.118 $0.104 $0.085 Reel $0.064 View $0.075 $0.071 $0.061 $0.059 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Varistors 20mm Radial Disc-Straight Leads,Bulk MOV-20D751KC Bourns 1: $1.97 300In Stock New Product	Mfr. Part # MOV-20D751KC Mouser Part # 652-MOV-20D751KC New Product	Bourns	Varistors 20mm Radial Disc-Straight Leads,Bulk Learn More about Bourns mov kc metal oxide varistors	Datasheet	300In Stock	$1.97 $1.22 $0.836 $0.689 View $0.563 $0.544 $0.523	Min.: 1 Mult.: 1
Varistors 20mm Radial Disc-Straight Leads,Bulk MOV-20D781KC Bourns 1: $1.97 300In Stock New Product	Mfr. Part # MOV-20D781KC Mouser Part # 652-MOV-20D781KC New Product	Bourns	Varistors 20mm Radial Disc-Straight Leads,Bulk Learn More about Bourns mov kc metal oxide varistors	Datasheet	300In Stock	$1.97 $1.22 $0.836 $0.689 View $0.563 $0.544 $0.523	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 8A 25pF max SLP0603P2x3L UCLAMP2001ZA.F Semtech 1: $0.41 21,000In Stock New Product	Mfr. Part # UCLAMP2001ZA.F Mouser Part # 947-UCLAMP2001ZA New Product	Semtech	ESD Protection Diodes / TVS Diodes 8A 25pF max SLP0603P2x3L	Datasheet	21,000In Stock	Cut Tape $0.41 $0.269 $0.159 $0.12 View Reel $0.068 $0.105 $0.089 $0.082 $0.076 $0.068 MouseReel Available	Min.: 1 Mult.: 1 : 15,000
ESD Protection Diodes / TVS Diodes 5V, 6A, SOD882 SC1003-01ETG Littelfuse 1: $0.60 10,010In Stock New Product	Mfr. Part # SC1003-01ETG Mouser Part # 576-SC1003-01ETG New Product	Littelfuse	ESD Protection Diodes / TVS Diodes 5V, 6A, SOD882 Learn More about Littelfuse tvs spa diode arrays	Datasheet	10,010In Stock	Cut Tape $0.60 $0.367 $0.234 $0.195 Reel $0.109 View $0.158 $0.135 $0.129 $0.105 MouseReel Available	Min.: 1 Mult.: 1 : 10,000

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