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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.
Surface Mount Fuses 2.5A Slow Blow 0603 SinglFuse SF-0603S250-2 Bourns 1: $0.68 15,480In Stock	Mfr. Part No. SF-0603S250-2 Mouser Part No 652-SF-0603S250-2	Bourns	Surface Mount Fuses 2.5A Slow Blow 0603 SinglFuse Learn More about Bourns slow blow smd fuses	Datasheet	15,480In Stock	Cut Tape $0.68 $0.541 $0.456 $0.40 View Reel $0.252 $0.361 $0.333 $0.306 $0.283 $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses 1.5A Fast Acting 1206 SinglFuse SF-1206F150-2 Bourns 1: $0.60 12,093In Stock	Mfr. Part No. SF-1206F150-2 Mouser Part No 652-SF-1206F150-2	Bourns	Surface Mount Fuses 1.5A Fast Acting 1206 SinglFuse Learn More about Bourns fast acting thin film smd fuses	Datasheet	12,093In Stock	Cut Tape $0.60 $0.477 $0.402 $0.354 $0.327 Reel $0.327 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Thyristor Surge Protection Devices - TSPD Sidacs Very Low Volt Bidirectional TISP4025H1BJR-S Bourns 1: $1.37 9,422In Stock	Mfr. Part No. TISP4025H1BJR-S Mouser Part No 652-TISP4025H1BJR-S	Bourns	Thyristor Surge Protection Devices - TSPD Sidacs Very Low Volt Bidirectional Learn More about Bourns TISP40xxH1BJ VLV overvoltage protector	Datasheet	9,422In Stock	Cut Tape $1.37 $0.861 $0.569 $0.443 Reel $0.351 View $0.404 $0.334 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Thyristor Surge Protection Devices - TSPD 58V 600mA TISP4070M3BJR-S Bourns 1: $1.23 11,885In Stock	Mfr. Part No. TISP4070M3BJR-S Mouser Part No 652-TISP4070M3BJR-S	Bourns	Thyristor Surge Protection Devices - TSPD 58V 600mA Learn More about Bourns tisp4xm3bj overvoltage protectors	Datasheet	11,885In Stock	Cut Tape $1.23 $0.771 $0.507 $0.394 Reel $0.311 View $0.357 $0.288 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Thyristor Surge Protection Devices - TSPD BI-DIRECTIONL PRTCTR 120volts TISP4145M3BJR-S Bourns 1: $1.23 8,401In Stock	Mfr. Part No. TISP4145M3BJR-S Mouser Part No 652-TISP4145M3BJR-S	Bourns	Thyristor Surge Protection Devices - TSPD BI-DIRECTIONL PRTCTR 120volts Learn More about Bourns tisp4xm3bj overvoltage protectors	Datasheet	8,401In Stock	Cut Tape $1.23 $0.771 $0.507 $0.394 Reel $0.311 View $0.357 $0.286 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1200 V GDT28H-120-BRP Bourns 1: $1.58 1,359In Stock	Mfr. Part No. GDT28H-120-BRP Mouser Part No 652-GDT28H-120-BRP	Bourns	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1200 V Learn More about Bourns gdt28h gdts	Datasheet	1,359In Stock	Cut Tape $1.58 $1.35 $1.22 $1.16 Reel $0.902 View $1.09 $1.06 $0.854 $0.846 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1500 V GDT28H-150-BRP Bourns 1: $1.81 874In Stock	Mfr. Part No. GDT28H-150-BRP Mouser Part No 652-GDT28H-150-BRP	Bourns	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1500 V Learn More about Bourns gdt28h gdts	Datasheet	874In Stock	Cut Tape $1.81 $1.65 $1.40 $1.28 Reel $0.973 View $1.15 $0.999 $0.854 $0.846 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 60volts 2031-15T-SM-RPLF Bourns 1,500: $0.707 10,500In Stock	Mfr. Part No. 2031-15T-SM-RPLF Mouser Part No 652-2031-15T-SM-RPLF	Bourns	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 60volts Learn More about Bourns 2031TSM	Datasheet	10,500In Stock	Reel $0.707	Min.: 1,500 Mult.: 1,500 : 1,500
Varistors CHIP GUARD 5VOLT CG0603MLU-05E Bourns 1: $0.32 58,020In Stock	Mfr. Part No. CG0603MLU-05E Mouser Part No 652-CG0603MLU-05E	Bourns	Varistors CHIP GUARD 5VOLT Learn More about Bourns gdt	Datasheet	58,020In Stock	Cut Tape $0.32 $0.193 $0.147 $0.14 View Reel $0.124 $0.135 $0.131 $0.126 $0.124 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Thermal Cut-offs TRIP TEMP 90C 5C TOL HC90AY-1 Bourns 1: $1.29 3,108In Stock	Mfr. Part No. HC90AY-1 Mouser Part No 652-HC90AY-1	Bourns	Thermal Cut-offs TRIP TEMP 90C 5C TOL Learn More about Bourns hc series breakers	Datasheet	3,108In Stock	$1.29 $1.26 $1.19 $1.14 View $1.09 $1.07 $0.918 $0.827 $0.733	Min.: 1 Mult.: 1
Thermal Cut-offs TRIP TEMP 77C 5C TOL LC77AY-1 Bourns 1: $1.09 7,547In Stock	Mfr. Part No. LC77AY-1 Mouser Part No 652-LC77AY-1	Bourns	Thermal Cut-offs TRIP TEMP 77C 5C TOL Learn More about Bourns lc series mini breakers	Datasheet	7,547In Stock	$1.09 $1.03 $0.963 $0.919 View $0.882 $0.862 $0.743 $0.665 $0.575	Min.: 1 Mult.: 1
Resettable Fuses - PPTC PTC RESETTABLE 0.9A 60V RADIAL LEADED MF-R090-2 Bourns 1: $0.43 11,581In Stock	Mfr. Part No. MF-R090-2 Mouser Part No 652-MF-R090-2	Bourns	Resettable Fuses - PPTC PTC RESETTABLE 0.9A 60V RADIAL LEADED Learn More about Bourns multifuse	Datasheet	11,581In Stock	Cut Tape $0.43 $0.39 $0.324 $0.291 Reel $0.194 View $0.269 $0.248 $0.221 $0.193	Min.: 1 Mult.: 1 : 3,000
Resettable Fuses - PPTC PTC 2.5A 30V RADIAL LEADED UNCOATED MF-R250U Bourns 1: $0.48 7,520In Stock	Mfr. Part No. MF-R250U Mouser Part No 652-MF-R250U	Bourns	Resettable Fuses - PPTC PTC 2.5A 30V RADIAL LEADED UNCOATED Learn More about Bourns mf r	Datasheet	7,520In Stock	$0.48 $0.442 $0.283 $0.267 View $0.264 $0.257	Min.: 1 Mult.: 1
Varistors PV 140V 10% PV140K4032R2 Bourns 1: $0.83 4,456In Stock	Mfr. Part No. PV140K4032R2 Mouser Part No 652-PV140K4032R2	Bourns	Varistors PV 140V 10% Learn More about Bourns pv low medium varistors	Datasheet	4,456In Stock	Cut Tape $0.83 $0.525 $0.465 $0.433 Reel $0.399 View $0.415 $0.379 $0.368 $0.364 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Varistors PV 275V 10% PV275K4032R2 Bourns 1: $0.65 6,563In Stock	Mfr. Part No. PV275K4032R2 Mouser Part No 652-PV275K4032R2	Bourns	Varistors PV 275V 10% Learn More about Bourns pv low medium varistors	Datasheet	6,563In Stock	Cut Tape $0.65 $0.458 $0.416 $0.399 Reel $0.399 View $0.35 $0.348 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Thermal Cut-offs HC TCO 77C BL-51 SA77SB0 Bourns 1: $0.93 23,105In Stock	Mfr. Part No. SA77SB0 Mouser Part No 652-SA77SB0	Bourns	Thermal Cut-offs HC TCO 77C BL-51 Learn More about Bourns sa smt breaker	Datasheet	23,105In Stock	Cut Tape $0.93 $0.876 $0.82 $0.783 View Reel $0.49 $0.748 $0.719 $0.634 $0.584 $0.49 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Thermal Cut-offs 72C Reinforced Cover SMD HC TCO SC72AAA Bourns 1: $0.961 4,469In Stock	Mfr. Part No. SC72AAA Mouser Part No 652-SC72AAA	Bourns	Thermal Cut-offs 72C Reinforced Cover SMD HC TCO Learn More about Bourns sc mini breakers	Datasheet	4,469In Stock	Cut Tape $0.961 $0.90 $0.875 $0.826 View Reel $0.649 $0.785 $0.78 $0.732 $0.718 $0.649 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses 4A Fast Acting 0603 SinglFuse SF-0603F400-2 Bourns 1: $0.58 21,625In Stock	Mfr. Part No. SF-0603F400-2 Mouser Part No 652-SF-0603F400-2	Bourns	Surface Mount Fuses 4A Fast Acting 0603 SinglFuse Learn More about Bourns fast acting thin film smd fuses	Datasheet	21,625In Stock	Cut Tape $0.58 $0.494 $0.429 $0.392 View Reel $0.261 $0.355 $0.33 $0.299 $0.291 $0.261 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses 1A 32V TIME DELAY SF-0603SP100-2 Bourns 1: $0.761 14,437In Stock	Mfr. Part No. SF-0603SP100-2 Mouser Part No 652-SF-0603SP100-2	Bourns	Surface Mount Fuses 1A 32V TIME DELAY Learn More about Bourns sf 0603sp r metal foil smd fuses	Datasheet	14,437In Stock	Cut Tape $0.761 $0.604 $0.509 $0.447 View Reel $0.362 $0.413 $0.386 $0.364 $0.362 $0.362 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses 1.6A 32V TIME DELAY SF-0603SP160-2 Bourns 1: $0.761 18,045In Stock	Mfr. Part No. SF-0603SP160-2 Mouser Part No 652-SF-0603SP160-2	Bourns	Surface Mount Fuses 1.6A 32V TIME DELAY Learn More about Bourns sf 0603sp r metal foil smd fuses	Datasheet	18,045In Stock	Cut Tape $0.761 $0.604 $0.509 $0.447 View Reel $0.283 $0.421 $0.342 $0.326 $0.304 $0.283 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses 6A 50V TIME DELAY SF-0603SP600-2 Bourns 1: $0.611 13,405In Stock	Mfr. Part No. SF-0603SP600-2 Mouser Part No 652-SF-0603SP600-2	Bourns	Surface Mount Fuses 6A 50V TIME DELAY Learn More about Bourns sf 0603sp r metal foil smd fuses	Datasheet	13,405In Stock	Cut Tape $0.611 $0.492 $0.433 $0.392 View Reel $0.277 $0.345 $0.331 $0.308 $0.294 $0.277 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses 0603 time-lag met-foil. 5A Auto SF-0603SPA500R-2 Bourns 1: $1.23 4,212In Stock	Mfr. Part No. SF-0603SPA500R-2 Mouser Part No 652-SF-0603SPA500R-2	Bourns	Surface Mount Fuses 0603 time-lag met-foil. 5A Auto Learn More about Bourns sf 0603spa r automotive fuses	Datasheet	4,212In Stock	Cut Tape $1.23 $0.986 $0.863 $0.783 View Reel $0.518 $0.709 $0.659 $0.628 $0.555 $0.518 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses 1206 slow-blow met-foil. 15A Auto SF-1206SA1500R-2 Bourns 1: $0.98 7,072In Stock	Mfr. Part No. SF-1206SA1500R-2 Mouser Part No 652-SF-1206SA1500R-2	Bourns	Surface Mount Fuses 1206 slow-blow met-foil. 15A Auto Learn More about Bourns sf 1206sa r automotive fuses	Datasheet	7,072In Stock	Cut Tape $0.98 $0.779 $0.656 $0.57 View Reel $0.349 $0.512 $0.472 $0.435 $0.404 $0.349 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Thyristor Surge Protection Devices - TSPD Very Low Voltage Bidirectional TISP4030L1AJR-S Bourns 1: $0.80 19,296In Stock	Mfr. Part No. TISP4030L1AJR-S Mouser Part No 652-TISP4030L1AJR-S	Bourns	Thyristor Surge Protection Devices - TSPD Very Low Voltage Bidirectional Learn More about Bourns TISP protectors for VDSL GFast	Datasheet	19,296In Stock	Cut Tape $0.80 $0.435 $0.294 $0.226 Reel $0.167 View $0.197 $0.188 $0.157 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Thyristor Surge Protection Devices - TSPD Very Low Voltage Bidirectional TISP4040L1BJR-S Bourns 1: $0.78 23,047In Stock	Mfr. Part No. TISP4040L1BJR-S Mouser Part No 652-TISP4040L1BJR-S	Bourns	Thyristor Surge Protection Devices - TSPD Very Low Voltage Bidirectional Learn More about Bourns TISP protectors for VDSL GFast	Datasheet	23,047In Stock	Cut Tape $0.78 $0.484 $0.30 $0.234 Reel $0.183 View $0.211 $0.167 $0.152 MouseReel Available	Min.: 1 Mult.: 1 : 3,000

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