.hide-partial { max-height: none; } .show-more { display: none; }

Circuit Protection

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Circuit Protection

List Images

Results: 1,346

Applied Filters:

Brand = Multiple Values

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (HKD) Filter the results in the table by unit price based on your quantity.	Qty.
ESD Protection Diodes / TVS Diodes Automotive 5000 W, 33 V TVS SM50T39AY STMicroelectronics 1: HK$23.18 2,289In Stock	Mfr. Part No. SM50T39AY Mouser Part No 511-SM50T39AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 5000 W, 33 V TVS Learn More about STMicroelectronics stm sm50txay 5000w tvs	Datasheet	2,289In Stock	Cut Tape HK$23.18 HK$14.71 HK$11.51 HK$10.36 Reel HK$6.94 View HK$8.30 HK$7.38 HK$6.28 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V tp 70V BI SM15T39CAY STMicroelectronics 1: HK$15.54 31,186In Stock	Mfr. Part No. SM15T39CAY Mouser Part No 511-SM15T39CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V tp 70V BI Learn More about STMicroelectronics stmicro sm15ty transil	Datasheet	31,186In Stock	Cut Tape HK$15.54 HK$9.95 HK$7.42 HK$6.63 Reel HK$4.30 View HK$5.24 HK$4.75 HK$4.07 HK$3.83 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes Automotive 22 V TVS for load dump in D2PAK LDP01-26AY STMicroelectronics 1: HK$35.18 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 HK$35.18 HK$18.74 HK$15.70 HK$14.06 Reel HK$11.67 View HK$12.66 HK$11.10 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
ESD Protection Diodes / TVS Diodes Automotive 5000 W, 28 V TVS SM50T33AY STMicroelectronics 1: HK$21.04 2,450In Stock	Mfr. Part No. SM50T33AY Mouser Part No 511-SM50T33AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 5000 W, 28 V TVS Learn More about STMicroelectronics stm sm50txay 5000w tvs	Datasheet	2,450In Stock	Cut Tape HK$21.04 HK$14.06 HK$11.51 HK$10.36 Reel HK$6.94 View HK$8.30 HK$7.38 HK$6.28 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes Automotive 600 W, 36 V TVS SM6F36AY STMicroelectronics 1: HK$7.32 4,094In Stock 6,000Expected 2/11/2026	Mfr. Part No. SM6F36AY Mouser Part No 511-SM6F36AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 600 W, 36 V TVS Learn More about STMicroelectronics stm sm6fxay tvs diodes	Datasheet	4,094In Stock 6,000Expected 2/11/2026	Cut Tape HK$7.32 HK$3.31 HK$2.92 HK$2.22 Reel HK$1.82 View HK$1.95 HK$1.29 HK$1.13	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes Automotive 5000 W, 18 V TVS SM50T21AY STMicroelectronics 1: HK$23.34 2,490In Stock	Mfr. Part No. SM50T21AY Mouser Part No 511-SM50T21AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 5000 W, 18 V TVS Learn More about STMicroelectronics stm sm50txay 5000w tvs	Datasheet	2,490In Stock	Cut Tape HK$23.34 HK$15.04 HK$11.51 HK$10.36 Reel HK$6.94 View HK$8.30 HK$7.38 HK$6.28 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Triacs 12 Amp 600 Volt BTB12-600BWRG STMicroelectronics 1: HK$13.89 12,184In Stock	Mfr. Part No. BTB12-600BWRG Mouser Part No 511-BTB12-600BW	STMicroelectronics	Triacs 12 Amp 600 Volt Learn More about STMicroelectronics stm standard products	Datasheet	12,184In Stock	HK$13.89 HK$6.35 HK$4.98 HK$3.96 HK$3.72	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 14.2V 300W Unidirect ESDA14V2L STMicroelectronics 1: HK$2.71 191,221In Stock	Mfr. Part No. ESDA14V2L Mouser Part No 511-ESDA14V2L	STMicroelectronics	ESD Protection Diodes / TVS Diodes 14.2V 300W Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	191,221In Stock	Cut Tape HK$2.71 HK$1.18 HK$0.986 HK$0.756 Reel HK$0.543 View HK$0.633 HK$0.518 HK$0.46 HK$0.411 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Uni SM15T30AY STMicroelectronics 1: HK$12.91 4,656In Stock	Mfr. Part No. SM15T30AY Mouser Part No 511-SM15T30AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Uni Learn More about STMicroelectronics stmicro sm15ty transil	Datasheet	4,656In Stock	Cut Tape HK$12.91 HK$8.55 HK$7.12 HK$6.11 Reel HK$3.98 View HK$4.83 HK$4.50 HK$3.66 HK$3.64 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V tp 70V BI SM15T33CAY STMicroelectronics 1: HK$15.54 3,497In Stock	Mfr. Part No. SM15T33CAY Mouser Part No 511-SM15T33CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V tp 70V BI Learn More about STMicroelectronics stmicro sm15ty transil	Datasheet	3,497In Stock	Cut Tape HK$15.54 HK$9.95 HK$7.42 HK$6.63 Reel HK$4.30 View HK$5.24 HK$4.62 HK$3.84 HK$3.83 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500W 7.5V Unidirect SM15T7V5A STMicroelectronics 1: HK$13.48 6,611In Stock	Mfr. Part No. SM15T7V5A Mouser Part No 511-SM15T7V5A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 7.5V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	6,611In Stock	Cut Tape HK$13.48 HK$8.55 HK$6.38 HK$5.36 Reel HK$3.44 View HK$4.36 HK$3.98 HK$3.15 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Uni SM6T27AY STMicroelectronics 1: HK$14.80 5,442In Stock	Mfr. Part No. SM6T27AY Mouser Part No 511-SM6T27AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Uni Learn More about STMicroelectronics stmicro sm6ty 600w transil	Datasheet	5,442In Stock	Cut Tape HK$14.80 HK$9.45 HK$7.05 HK$6.29 Reel HK$3.59 View HK$4.96 HK$4.32 HK$3.58 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 400W 33V Unidirect SMAJ33A-TR STMicroelectronics 1: HK$5.67 14,965In Stock	Mfr. Part No. SMAJ33A-TR Mouser Part No 511-SMAJ33A-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400W 33V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	14,965In Stock	Cut Tape HK$5.67 HK$2.61 HK$2.24 HK$1.78 Reel HK$0.929 View HK$1.49 HK$1.28 HK$0.855 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Triacs 16 A Logic Level Triac for LED Light Dimmers T1605G-6I STMicroelectronics 1: HK$19.65 3,181In Stock	Mfr. Part No. T1605G-6I Mouser Part No 511-T1605G-6I	STMicroelectronics	Triacs 16 A Logic Level Triac for LED Light Dimmers	Datasheet	3,181In Stock	HK$19.65 HK$9.62 HK$8.18 HK$6.84 View HK$6.26 HK$5.95 HK$5.89	Min.: 1 Mult.: 1
Triacs 16A Snubberless 600Vrrm 800Vrsm T1610H-6T STMicroelectronics 1: HK$16.60 2,752In Stock	Mfr. Part No. T1610H-6T Mouser Part No 511-T1610H-6T	STMicroelectronics	Triacs 16A Snubberless 600Vrrm 800Vrsm Learn More about STMicroelectronics stm h series triacs	Datasheet	2,752In Stock	HK$16.60 HK$7.96 HK$7.11 HK$5.63 View HK$4.76 HK$4.66	Min.: 1 Mult.: 1
Triacs 25 A - 800 V - T-Series Triac in TO-220AB T2535T-8T STMicroelectronics 1: HK$20.14 8,385In Stock	Mfr. Part No. T2535T-8T Mouser Part No 511-T2535T-8T	STMicroelectronics	Triacs 25 A - 800 V - T-Series Triac in TO-220AB Learn More about STMicroelectronics stm t2535t 25a 800v triac	Datasheet	8,385In Stock	HK$20.14 HK$9.86 HK$8.88 HK$7.06 View HK$6.49 HK$6.20	Min.: 1 Mult.: 1
Triacs 4.0 Amp 600 Volt T405Q-600H STMicroelectronics 1: HK$8.63 12,558In Stock	Mfr. Part No. T405Q-600H Mouser Part No 511-T405Q-600H	STMicroelectronics	Triacs 4.0 Amp 600 Volt Learn More about STMicroelectronics stm standard products	Datasheet	12,558In Stock	HK$8.63 HK$3.72 HK$3.30 HK$2.70 View HK$2.24 HK$1.92	Min.: 1 Mult.: 1
Triacs 4A TRIACS T435-700B-TR STMicroelectronics 1: HK$9.95 5,329In Stock	Mfr. Part No. T435-700B-TR Mouser Part No 511-T435-700B-TR	STMicroelectronics	Triacs 4A TRIACS Learn More about STMicroelectronics stm standard products	Datasheet	5,329In Stock	Cut Tape HK$9.95 HK$6.22 HK$4.09 HK$3.17 Reel HK$2.55 View HK$2.88 HK$2.33 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
SCRs 10 Amp 600 Volt TYN610RG STMicroelectronics 1: HK$11.67 4,361In Stock	Mfr. Part No. TYN610RG Mouser Part No 511-TYN610	STMicroelectronics	SCRs 10 Amp 600 Volt Learn More about STMicroelectronics stm standard products		4,361In Stock	HK$11.67 HK$5.47 HK$4.25 HK$3.49 View HK$3.15 HK$2.90	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes Automotive 5000 W, 20 V TVS SM50T23AY STMicroelectronics 1: HK$21.04 2,490In Stock	Mfr. Part No. SM50T23AY Mouser Part No 511-SM50T23AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 5000 W, 20 V TVS Learn More about STMicroelectronics stm sm50txay 5000w tvs	Datasheet	2,490In Stock	Cut Tape HK$21.04 HK$14.06 HK$11.51 HK$10.36 Reel HK$6.94 View HK$8.30 HK$7.38 HK$6.28 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Triacs Overvoltage protected AC switch ACST310-8B STMicroelectronics 1: HK$12.58 9,181In Stock	Mfr. Part No. ACST310-8B Mouser Part No 511-ACST310-8B	STMicroelectronics	Triacs Overvoltage protected AC switch	Datasheet	9,181In Stock	HK$12.58 HK$7.72 HK$5.09 HK$3.99 View HK$3.42 HK$2.71 HK$2.60	Min.: 1 Mult.: 1
Triacs 12 Amp 600 Volt BTA12-600SWRG STMicroelectronics 1: HK$15.62 3,815In Stock	Mfr. Part No. BTA12-600SWRG Mouser Part No 511-BTA12-600SW	STMicroelectronics	Triacs 12 Amp 600 Volt Learn More about STMicroelectronics stm standard products	Datasheet	3,815In Stock	HK$15.62 HK$7.46 HK$6.67 HK$5.27 View HK$4.50 HK$4.35	Min.: 1 Mult.: 1
SCRs .025 SCRs P0109AL 5AA4 STMicroelectronics 1: HK$6.90 9,259In Stock	Mfr. Part No. P0109AL 5AA4 Mouser Part No 511-P0109AL5AA4	STMicroelectronics	SCRs .025 SCRs Learn More about STMicroelectronics stm standard products	Datasheet	9,259In Stock	Cut Tape HK$6.90 HK$4.83 HK$3.14 HK$2.38 Reel HK$1.87 View HK$2.14 HK$1.83 HK$1.64 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1500W 22V Bidirect SM15T22CA STMicroelectronics 1: HK$14.06 3,433In Stock	Mfr. Part No. SM15T22CA Mouser Part No 511-SM15T22CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 22V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	3,433In Stock	Cut Tape HK$14.06 HK$8.88 HK$6.65 HK$5.93 Reel HK$3.36 View HK$4.64 HK$4.00 HK$3.35 HK$3.32 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500W 6.8V Bidirect SM15T6V8CA STMicroelectronics 1: HK$14.63 7,074In Stock	Mfr. Part No. SM15T6V8CA Mouser Part No 511-SM15T6V8CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 6.8V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	7,074In Stock	Cut Tape HK$14.63 HK$9.54 HK$7.78 HK$6.95 Reel HK$4.08 View HK$5.50 HK$4.91 HK$4.07 HK$4.05 MouseReel Available	Min.: 1 Mult.: 1 : 2,500

Circuit Protection

Types of Circuit Protection

Applied Filters:

Customer Service Office

Company

Resources

Support

Share This

Circuit Protection

Types of Circuit Protection

Applied Filters: