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Circuit Protection Devices

Bourns manufactures and supplies a wide range of circuit protection technologies, including fuses, PTC thermistors, varistors, GDTs, resettable thermal cut-offs, surge protection devices, hybrid protectors, discrete semiconductor solutions, and more. Reliable surge protection is a critical design consideration to help ensure operational reliability of consumer electronics, industrial/communication equipment, automotive, battery charging, energy storage infrastructure, and renewable energy harvesting ecosystems.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) Filter the results in the table by unit price based on your quantity.	Qty.
Thermal Cutoffs TCO, High Current, SMD, 90C, Self Hold AEC-Q200 SD90ABB Bourns 1: $2.82 14,934In Stock	Mfr. Part # SD90ABB Mouser Part # 652-SD90ABB	Bourns	Thermal Cutoffs TCO, High Current, SMD, 90C, Self Hold AEC-Q200 Learn More about Bourns ad sd miniature tco devices	Datasheet	14,934In Stock	Cut Tape $2.82 $2.68 $2.53 $2.42 View Reel $1.63 $2.32 $2.00 $1.90 $1.63 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 2000 V GDT28H-200-BRP Bourns 1: $2.61 1,615In Stock	Mfr. Part # GDT28H-200-BRP Mouser Part # 652-GDT28H-200-BRP	Bourns	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 2000 V Learn More about Bourns gdt28h gdts	Datasheet	1,615In Stock	Cut Tape $2.61 $2.38 $2.00 $1.84 Reel $1.26 View $1.66 $1.42 $1.23 $1.17 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 200V GDT35-20-S1-RP Bourns 1: $2.56 1,835In Stock	Mfr. Part # GDT35-20-S1-RP Mouser Part # 652-GDT35-20-S1-RP	Bourns	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 200V Learn More about Bourns gdt35	Datasheet	1,835In Stock	Cut Tape $2.56 $2.32 $1.96 $1.81 Reel $1.29 View $1.63 $1.39 $1.21 $1.15 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Fuse Holder FB1 FUSE BLOCK 110A FUSE FB1-110 Bourns 1: $109.17 50In Stock 80Expected 2026-11-12	Mfr. Part # FB1-110 Mouser Part # 652-FB1-110	Bourns	Fuse Holder FB1 FUSE BLOCK 110A FUSE	Datasheet	50In Stock 80Expected 2026-11-12	$109.17 $90.55 $83.52 $69.12 $66.04	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 350V GDT35-35-S1-RP Bourns 1: $2.56 1,571In Stock	Mfr. Part # GDT35-35-S1-RP Mouser Part # 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 $2.56 $2.32 $1.96 $1.81 Reel $1.28 View $1.63 $1.40 $1.21 $1.15 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: $2.56 1,965In Stock	Mfr. Part # GDT35-42-S1-RP Mouser Part # 652-GDT35-42-S1-RP	Bourns	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 420V Learn More about Bourns gdt35	Datasheet	1,965In Stock	Cut Tape $2.56 $2.32 $1.96 $1.81 Reel $1.28 View $1.63 $1.39 $1.21 $1.15 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: $2.56 1,682In Stock	Mfr. Part # GDT35-47-S1-RP Mouser Part # 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 $2.56 $2.32 $1.96 $1.81 Reel $1.29 View $1.63 $1.39 $1.21 $1.15 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 470V, REEL GDT25-47-S1-RP Bourns 1: $1.58 2,812In Stock	Mfr. Part # GDT25-47-S1-RP Mouser Part # 652-GDT25-47-S1-RP	Bourns	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 470V, REEL Learn More about Bourns gdt25 gdt arrestors	Datasheet	2,812In Stock	Cut Tape $1.58 $1.37 $1.19 $1.10 View Reel $0.808 $0.998 $0.829 $0.808 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 2700 V GDT28H-270-BRP Bourns 1: $2.55 1,909In Stock	Mfr. Part # GDT28H-270-BRP Mouser Part # 652-GDT28H-270-BRP	Bourns	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 2700 V Learn More about Bourns gdt28h gdts	Datasheet	1,909In Stock	Cut Tape $2.55 $2.38 $2.00 $1.84 Reel $1.26 View $1.66 $1.51 $1.23 $1.17 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Varistors 20mm Radial Disc MOV - Kinked Leads, T&R MOV-20D781KKTR Bourns 1: $2.97 3,952In Stock	Mfr. Part # MOV-20D781KKTR Mouser Part # 652-MOV-20D781KKTR	Bourns	Varistors 20mm Radial Disc MOV - Kinked Leads, T&R Learn More about Bourns mov xd metal oxide varistors	Datasheet	3,952In Stock	Cut Tape $2.97 $1.86 $1.67 $1.37 Reel $1.27 View $1.13 $0.888 $0.84 MouseReel Available	Min.: 1 Mult.: 1 : 250
Thermal Cutoffs TCO, High Current, SMD, 72C, Self Hold AEC-Q200 SD72ABB Bourns 1: $4.09 3,479In Stock	Mfr. Part # SD72ABB Mouser Part # 652-SD72ABB	Bourns	Thermal Cutoffs TCO, High Current, SMD, 72C, Self Hold AEC-Q200 Learn More about Bourns ad sd miniature tco devices	Datasheet	3,479In Stock	Cut Tape $4.09 $3.54 $2.87 $2.43 View Reel $1.79 $2.36 $2.00 $1.92 $1.79 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC Thermistors 15 dia Power NTC 10ohm Y kink bulk BN-LG15Y100MYB Bourns 1: $1.28 7,990In Stock	Mfr. Part # BN-LG15Y100MYB Mouser Part # 652-BN-LG15Y100MYB	Bourns	NTC Thermistors 15 dia Power NTC 10ohm Y kink bulk Learn More about Bourns bn powrtherm thermistors	Datasheet	7,990In Stock	$1.28 $1.04 $0.896 $0.864 View $0.737 $0.641 $0.58 $0.531	Min.: 1 Mult.: 1
NTC Thermistors 15 dia Power NTC 2.5ohm Y kink bulk BN-LG15Y2R5MYB Bourns 1: $1.37 10,131In Stock	Mfr. Part # BN-LG15Y2R5MYB Mouser Part # 652-BN-LG15Y2R5MYB	Bourns	NTC Thermistors 15 dia Power NTC 2.5ohm Y kink bulk Learn More about Bourns bn powrtherm thermistors	Datasheet	10,131In Stock	$1.37 $1.04 $0.896 $0.864 View $0.737 $0.641 $0.58 $0.531	Min.: 1 Mult.: 1
NTC Thermistors 20 dia Power NTC 2.2ohm Y kink bulk BN-LG20Y2R2MYB Bourns 1: $2.28 4,493In Stock	Mfr. Part # BN-LG20Y2R2MYB Mouser Part # 652-BN-LG20Y2R2MYB	Bourns	NTC Thermistors 20 dia Power NTC 2.2ohm Y kink bulk Learn More about Bourns bn powrtherm thermistors	Datasheet	4,493In Stock	$2.28 $1.71 $1.36 $1.28 View $1.25 $1.05 $0.973 $0.894	Min.: 1 Mult.: 1
NTC Thermistors 20 dia Power NTC 5ohm Y kink bulk BN-LG20Y5R0MYB Bourns 1: $2.03 5,812In Stock	Mfr. Part # BN-LG20Y5R0MYB Mouser Part # 652-BN-LG20Y5R0MYB	Bourns	NTC Thermistors 20 dia Power NTC 5ohm Y kink bulk Learn More about Bourns bn powrtherm thermistors	Datasheet	5,812In Stock	$2.03 $1.71 $1.36 $1.28 View $1.25 $1.18 $1.05 $0.973 $0.894	Min.: 1 Mult.: 1
NTC Thermistors 15 dia Power NTC 33ohm Y kink bulk BN-LG15Y330MYB Bourns 1: $0.965 7,710In Stock	Mfr. Part # BN-LG15Y330MYB Mouser Part # 652-BN-LG15Y330MYB	Bourns	NTC Thermistors 15 dia Power NTC 33ohm Y kink bulk Learn More about Bourns bn powrtherm thermistors	Datasheet	7,710In Stock	$0.965 $0.835 $0.775 $0.696 View $0.618 $0.588 $0.531 $0.396	Min.: 1 Mult.: 1
NTC Thermistors 20 dia Power NTC 10ohm Y kink bulk BN-LG20Y100MYB Bourns 1: $2.28 4,500In Stock	Mfr. Part # BN-LG20Y100MYB Mouser Part # 652-BN-LG20Y100MYB	Bourns	NTC Thermistors 20 dia Power NTC 10ohm Y kink bulk Learn More about Bourns bn powrtherm thermistors	Datasheet	4,500In Stock	$2.28 $1.89 $1.51 $1.34 View $1.27 $1.21 $1.05 $0.985 $0.894	Min.: 1 Mult.: 1
NTC Thermistors 20 dia Power NTC 2.5ohm Y kink bulk BN-LG20Y2R5MYB Bourns 1: $2.28 5,398In Stock	Mfr. Part # BN-LG20Y2R5MYB Mouser Part # 652-BN-LG20Y2R5MYB	Bourns	NTC Thermistors 20 dia Power NTC 2.5ohm Y kink bulk Learn More about Bourns bn powrtherm thermistors	Datasheet	5,398In Stock	$2.28 $1.71 $1.36 $1.28 View $1.25 $1.05 $0.973 $0.894	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes P6SMB - A 160V P6SMB160A-Q Bourns 1: $1.01 119,948In Stock	Mfr. Part # P6SMB160A-Q Mouser Part # 652-P6SMB160A-Q	Bourns	ESD Protection Diodes / TVS Diodes P6SMB - A 160V Learn More about Bourns p6smb q	Datasheet	119,948In Stock	Cut Tape $1.01 $0.618 $0.396 $0.301 Reel $0.23 View $0.271 $0.21 $0.174 $0.173 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Board Mount Surge Protectors 100mA 850Vimp P850-G120-WH Bourns 1: $3.43 22,254In Stock	Mfr. Part # P850-G120-WH Mouser Part # 652-P850-G120-WH	Bourns	Board Mount Surge Protectors 100mA 850Vimp Learn More about Bourns Bourns_TBU	Datasheet	22,254In Stock	Cut Tape $3.43 $2.98 $2.06 $1.67 View Reel $1.29 $1.57 $1.29 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Industrial Surge Protectors AC SPD, 2W-G,150VAC 1250A-2S-120 Bourns 1: $310.72 89In Stock	Mfr. Part # 1250A-2S-120 Mouser Part # 652-1250A-2S-120	Bourns	Industrial Surge Protectors AC SPD, 2W-G,150VAC Learn More about Bourns 1250a ac spds	Datasheet	89In Stock	$310.72 $242.55 $236.35 Quote Quote	Min.: 1 Mult.: 1
Industrial Surge Protectors AC SPD, 2W-G,275VAC 1250A-2S-230 Bourns 1: $351.98 69In Stock	Mfr. Part # 1250A-2S-230 Mouser Part # 652-1250A-2S-230	Bourns	Industrial Surge Protectors AC SPD, 2W-G,275VAC Learn More about Bourns 1250a ac spds	Datasheet	69In Stock	$351.98 $291.83 $269.14 $268.82 View $241.17 Quote	Min.: 1 Mult.: 1
NTC Thermistors 20 dia Power NTC 20ohm Y kink bulk BN-LG20Y200MYB Bourns 1: $2.15 6,166In Stock	Mfr. Part # BN-LG20Y200MYB Mouser Part # 652-BN-LG20Y200MYB	Bourns	NTC Thermistors 20 dia Power NTC 20ohm Y kink bulk Learn More about Bourns bn powrtherm thermistors	Datasheet	6,166In Stock	$2.15 $1.71 $1.18 $1.05 View $0.999 $0.953 $0.703 $0.701	Min.: 1 Mult.: 1
Thermal Cutoffs TCO, High Current, Axial Lead, 55C, Self Hold AEC-Q200 AD55ABB Bourns 1: $2.64 2,467In Stock	Mfr. Part # AD55ABB Mouser Part # 652-AD55ABB	Bourns	Thermal Cutoffs TCO, High Current, Axial Lead, 55C, Self Hold AEC-Q200 Learn More about Bourns ad sd miniature tco devices	Datasheet	2,467In Stock	$2.64 $2.51 $2.36 $2.26 View $2.17 $1.84 $1.77 $1.51	Min.: 1 Mult.: 1
Thermal Cutoffs TCO, High Current, SMD, 82C, non Self Hold AEC-Q200 SD82WBB Bourns 1: $2.75 4,997In Stock	Mfr. Part # SD82WBB Mouser Part # 652-SD82WBB	Bourns	Thermal Cutoffs TCO, High Current, SMD, 82C, non Self Hold AEC-Q200 Learn More about Bourns ad sd miniature tco devices	Datasheet	4,997In Stock	Cut Tape $2.75 $2.62 $2.48 $2.38 View Reel $1.58 $2.28 $1.94 $1.86 $1.58 MouseReel Available	Min.: 1 Mult.: 1 : 4,000

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Circuit Protection Devices

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