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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 (USD) 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: $1.96 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 $1.96 $1.86 $1.76 $1.68 View Reel $1.13 $1.61 $1.39 $1.32 $1.13 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: $1.81 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 $1.81 $1.65 $1.39 $1.28 Reel $0.877 View $1.15 $0.988 $0.853 $0.812 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: $1.78 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 $1.78 $1.61 $1.36 $1.26 Reel $0.894 View $1.13 $0.966 $0.839 $0.797 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Fuse Holder FB1 FUSE BLOCK 110A FUSE FB1-110 Bourns 1: $75.81 50In Stock 80Expected 11/12/2026	Mfr. Part # FB1-110 Mouser Part # 652-FB1-110	Bourns	Fuse Holder FB1 FUSE BLOCK 110A FUSE	Datasheet	50In Stock 80Expected 11/12/2026	$75.81 $62.88 $58.00 $48.00 $45.86	Min.: 1 Mult.: 1
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 # 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 $1.78 $1.61 $1.36 $1.26 Reel $0.889 View $1.13 $0.97 $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 1,965In 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 $1.78 $1.61 $1.36 $1.26 Reel $0.89 View $1.13 $0.966 $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 # 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 $1.78 $1.61 $1.36 $1.26 Reel $0.894 View $1.13 $0.966 $0.839 $0.797 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: $1.10 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 $1.10 $0.951 $0.829 $0.763 View Reel $0.561 $0.693 $0.576 $0.561 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: $1.77 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 $1.77 $1.65 $1.39 $1.28 Reel $0.877 View $1.15 $1.05 $0.853 $0.812 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Varistors 20mm Radial Disc MOV - Kinked Leads, T&R MOV-20D781KKTR Bourns 1: $2.06 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 $2.06 $1.29 $1.16 $0.948 Reel $0.885 View $0.782 $0.617 $0.583 MouseReel Available	Min.: 1 Mult.: 1 : 250
Thermal Cutoffs TCO, High Current, SMD, 72C, Self Hold AEC-Q200 SD72ABB Bourns 1: $2.84 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 $2.84 $2.46 $1.99 $1.69 View Reel $1.24 $1.64 $1.39 $1.33 $1.24 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC Thermistors 15 dia Power NTC 10ohm Y kink bulk BN-LG15Y100MYB Bourns 1: $0.89 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	$0.89 $0.722 $0.622 $0.60 View $0.512 $0.445 $0.403 $0.369	Min.: 1 Mult.: 1
NTC Thermistors 15 dia Power NTC 2.5ohm Y kink bulk BN-LG15Y2R5MYB Bourns 1: $0.95 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	$0.95 $0.722 $0.622 $0.60 View $0.512 $0.445 $0.403 $0.369	Min.: 1 Mult.: 1
NTC Thermistors 20 dia Power NTC 2.2ohm Y kink bulk BN-LG20Y2R2MYB Bourns 1: $1.58 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	$1.58 $1.19 $0.945 $0.889 View $0.867 $0.729 $0.676 $0.621	Min.: 1 Mult.: 1
NTC Thermistors 20 dia Power NTC 5ohm Y kink bulk BN-LG20Y5R0MYB Bourns 1: $1.41 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	$1.41 $1.19 $0.945 $0.889 View $0.867 $0.82 $0.729 $0.676 $0.621	Min.: 1 Mult.: 1
NTC Thermistors 15 dia Power NTC 33ohm Y kink bulk BN-LG15Y330MYB Bourns 1: $0.67 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	$0.67 $0.58 $0.538 $0.483 View $0.429 $0.408 $0.369 $0.275	Min.: 1 Mult.: 1
NTC Thermistors 20 dia Power NTC 10ohm Y kink bulk BN-LG20Y100MYB Bourns 1: $1.58 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	$1.58 $1.31 $1.05 $0.928 View $0.882 $0.839 $0.729 $0.684 $0.621	Min.: 1 Mult.: 1
NTC Thermistors 20 dia Power NTC 2.5ohm Y kink bulk BN-LG20Y2R5MYB Bourns 1: $1.58 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	$1.58 $1.19 $0.945 $0.889 View $0.867 $0.729 $0.676 $0.621	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes P6SMB - A 160V P6SMB160A-Q Bourns 1: $0.70 119,948In 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 $0.70 $0.429 $0.275 $0.209 Reel $0.16 View $0.188 $0.146 $0.121 $0.12 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Board Mount Surge Protectors 100mA 850Vimp P850-G120-WH Bourns 1: $2.38 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 $2.38 $2.07 $1.43 $1.16 Reel $0.896 View $1.09 $0.895 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Industrial Surge Protectors AC SPD, 2W-G,150VAC 1250A-2S-120 Bourns 1: $215.78 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	$215.78 $168.44 $164.13 Quote Quote	Min.: 1 Mult.: 1
Industrial Surge Protectors AC SPD, 2W-G,275VAC 1250A-2S-230 Bourns 1: $244.43 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	$244.43 $202.66 $186.90 $186.68 View $167.48 Quote	Min.: 1 Mult.: 1
NTC Thermistors 20 dia Power NTC 20ohm Y kink bulk BN-LG20Y200MYB Bourns 1: $1.49 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	$1.49 $1.19 $0.82 $0.729 View $0.694 $0.662 $0.488 $0.487	Min.: 1 Mult.: 1
Thermal Cutoffs TCO, High Current, Axial Lead, 55C, Self Hold AEC-Q200 AD55ABB Bourns 1: $1.83 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	$1.83 $1.74 $1.64 $1.57 View $1.51 $1.28 $1.23 $1.05	Min.: 1 Mult.: 1
Thermal Cutoffs TCO, High Current, SMD, 82C, non Self Hold AEC-Q200 SD82WBB Bourns 1: $1.91 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 $1.91 $1.82 $1.72 $1.65 View Reel $1.10 $1.58 $1.35 $1.29 $1.10 MouseReel Available	Min.: 1 Mult.: 1 : 4,000

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Circuit Protection Devices

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