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Circuit Protection

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (HKD) Filter the results in the table by unit price based on your quantity.	Qty.
Board Mount Surge Protectors 80 A 200 VR Crowbar Diode Telecom Trisil SMP80MC-200 STMicroelectronics 1: HK$7.81 4,967In Stock	Mfr. Part No. SMP80MC-200 Mouser Part No 511-SMP80MC-200	STMicroelectronics	Board Mount Surge Protectors 80 A 200 VR Crowbar Diode Telecom Trisil Learn More about STMicroelectronics stm standard products	Datasheet	4,967In Stock	Cut Tape HK$7.81 HK$4.85 HK$3.15 HK$2.42 Reel HK$1.66 View HK$2.18 HK$1.64 HK$1.63 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
SCRs 4.0 Amp 800 Volt TYN804RG STMicroelectronics 1: HK$15.54 1,955In Stock	Mfr. Part No. TYN804RG Mouser Part No 511-TYN804	STMicroelectronics	SCRs 4.0 Amp 800 Volt Learn More about STMicroelectronics stm standard products	Datasheet	1,955In Stock	HK$15.54 HK$8.16 HK$6.32 HK$4.96 View HK$4.24 HK$3.95 HK$3.59 HK$3.44 HK$3.26	Min.: 1 Mult.: 1
Triacs 4 Amp 700 Volt BTA04-700SRG STMicroelectronics 1: HK$19.97 1,095In Stock	Mfr. Part No. BTA04-700SRG Mouser Part No 511-BTA04-700S	STMicroelectronics	Triacs 4 Amp 700 Volt Learn More about STMicroelectronics stm standard products	Datasheet	1,095In Stock	HK$19.97 HK$11.18 HK$8.63 HK$6.92 View HK$6.26 HK$5.70	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 600W 4kW Transil SMA 5V to 70V Uni SMA6T7V6AY STMicroelectronics 1: HK$10.85 4,199In Stock	Mfr. Part No. SMA6T7V6AY Mouser Part No 511-SMA6T7V6AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 4kW Transil SMA 5V to 70V Uni Learn More about STMicroelectronics stmicro sma6ty automotive transil	Datasheet	4,199In Stock	Cut Tape HK$10.85 HK$6.83 HK$4.47 HK$3.45 Reel HK$2.48 View HK$2.93 HK$2.79 HK$2.40 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 3000W Transil 18V 0.2uA 15kV 8kV Uni SMC30J18A STMicroelectronics 1: HK$15.37 2,365In Stock	Mfr. Part No. SMC30J18A Mouser Part No 511-SMC30J18A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 3000W Transil 18V 0.2uA 15kV 8kV Uni Learn More about STMicroelectronics stm smc30j tvs diodes	Datasheet	2,365In Stock	Cut Tape HK$15.37 HK$10.36 HK$8.30 HK$7.40 Reel HK$4.41 View HK$5.87 HK$5.31 HK$4.34 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Board Mount Surge Protectors 68V 50uA Bidirect SMP30-68 STMicroelectronics 1: HK$5.67 4,879In Stock	Mfr. Part No. SMP30-68 Mouser Part No 511-SMP30-68	STMicroelectronics	Board Mount Surge Protectors 68V 50uA Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	4,879In Stock	Cut Tape HK$5.67 HK$4.09 HK$2.84 HK$1.82 View Reel HK$1.32 HK$1.64 HK$1.50 HK$1.32 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 3000W Transil 8.5V 0.2uA 15kV 8kV BI SMC30J8.5CA STMicroelectronics 1: HK$13.97 1,331In Stock	Mfr. Part No. SMC30J8.5CA Mouser Part No 511-SMC30J8.5CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 3000W Transil 8.5V 0.2uA 15kV 8kV BI Learn More about STMicroelectronics stm smc30j tvs diodes	Datasheet	1,331In Stock	Cut Tape HK$13.97 HK$9.86 HK$8.63 HK$7.04 Reel HK$4.68 View HK$5.71 HK$5.01 HK$4.36 HK$4.32 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
SCRs High Temperature 30A SCRs in TO-220AB TN3015H-6T STMicroelectronics 1: HK$17.67 1,368In Stock	Mfr. Part No. TN3015H-6T Mouser Part No 511-TN3015H-6T	STMicroelectronics	SCRs High Temperature 30A SCRs in TO-220AB Learn More about STMicroelectronics stm tn scrs	Datasheet	1,368In Stock	HK$17.67 HK$8.55 HK$7.62 HK$6.05 View HK$5.55 HK$5.12 HK$5.09	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes Automotive 40 V TVS for load dump in D2PAK LDP01-47AY STMicroelectronics 1: HK$35.51 650In Stock	Mfr. Part No. LDP01-47AY Mouser Part No 511-LDP01-47AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 40 V TVS for load dump in D2PAK	Datasheet	650In Stock	Cut Tape HK$35.51 HK$24.17 HK$19.73 HK$16.69 Reel HK$12.66 View HK$14.88 HK$11.92 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni SM4T10AY STMicroelectronics 1: HK$8.47 3,946In Stock	Mfr. Part No. SM4T10AY Mouser Part No 511-SM4T10AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	3,946In Stock	Cut Tape HK$8.47 HK$3.80 HK$3.25 HK$2.61 Reel HK$2.04 View HK$2.60 HK$2.55 HK$2.01 HK$1.80 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 3000 W, 40 V TVS in SMC SMC30J40A STMicroelectronics 1: HK$17.18 1,537In Stock	Mfr. Part No. SMC30J40A Mouser Part No 511-SMC30J40A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 3000 W, 40 V TVS in SMC Learn More about STMicroelectronics stm smc30j tvs diodes	Datasheet	1,537In Stock	Cut Tape HK$17.18 HK$11.01 HK$8.30 HK$7.39 Reel HK$4.84 View HK$5.87 HK$5.31 HK$4.34 HK$4.29 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes Automotive dual-line unidirectional 16 V ESD protection in SOT323 ESDA18WY STMicroelectronics 1: HK$3.62 11,123In Stock New Product	Mfr. Part No. ESDA18WY Mouser Part No 511-ESDA18WY New Product	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive dual-line unidirectional 16 V ESD protection in SOT323 Learn More about STMicroelectronics esdaxwy esd protection	Datasheet	11,123In Stock	Cut Tape HK$3.62 HK$1.59 HK$1.39 HK$1.04 Reel HK$0.764 View HK$0.995 HK$0.658 HK$0.625 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
SCRs 80 A 1200 V High Temperature SCR Thyristor in TOP-3I TN8050H-12WL STMicroelectronics 1: HK$57.54 396In Stock New Product	Mfr. Part No. TN8050H-12WL Mouser Part No 511-TN8050H-12WL New Product	STMicroelectronics	SCRs 80 A 1200 V High Temperature SCR Thyristor in TOP-3I Learn More about STMicroelectronics tn8050h 12wl scr thyristor	Datasheet	396In Stock	HK$57.54 HK$32.96 HK$27.54 HK$25.56	Min.: 1 Mult.: 1
Triacs Overvoltage protected AC Switch 0.8 A - 800 V ACS108-8SP-TR STMicroelectronics 1: HK$8.80 7,148In Stock	Mfr. Part No. ACS108-8SP-TR Mouser Part No 511-ACS108-8SP-TR	STMicroelectronics	Triacs Overvoltage protected AC Switch 0.8 A - 800 V Learn More about STMicroelectronics stm acs108 8tn ac switch	Datasheet	7,148In Stock	Cut Tape HK$8.80 HK$5.48 HK$3.60 HK$2.83 Reel HK$1.96 View HK$2.48 HK$2.19 HK$1.88 HK$1.82 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
SCRs 12 A HiTJ ACST ACST1220H-8H STMicroelectronics 1: HK$16.69 3,492In Stock	Mfr. Part No. ACST1220H-8H Mouser Part No 511-ACST1220H-8H	STMicroelectronics	SCRs 12 A HiTJ ACST	Datasheet	3,492In Stock	HK$16.69 HK$7.53 HK$6.76 HK$5.66 View HK$4.82 HK$4.73	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes Automotive 5000 W, 22 V TVS SM50T26AY STMicroelectronics 1: HK$23.34 3,823In Stock	Mfr. Part No. SM50T26AY Mouser Part No 511-SM50T26AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 5000 W, 22 V TVS Learn More about STMicroelectronics stm sm50txay 5000w tvs	Datasheet	3,823In Stock	Cut Tape HK$23.34 HK$15.04 HK$11.51 HK$10.36 Reel HK$6.94 View HK$8.30 HK$7.60 HK$6.28 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes Automotive 5000 W, 40 V TVS SM50T47AY STMicroelectronics 1: HK$23.34 3,488In Stock	Mfr. Part No. SM50T47AY Mouser Part No 511-SM50T47AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 5000 W, 40 V TVS Learn More about STMicroelectronics stm sm50txay 5000w tvs	Datasheet	3,488In Stock	Cut Tape HK$23.34 HK$15.04 HK$11.51 HK$10.36 Reel HK$6.94 View HK$8.30 HK$7.60 HK$6.28 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes Automotive 5000 W, 6.5 V TVS SM50T7V5AY STMicroelectronics 1: HK$23.34 2,210In Stock	Mfr. Part No. SM50T7V5AY Mouser Part No 511-SM50T7V5AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 5000 W, 6.5 V TVS Learn More about STMicroelectronics stm sm50txay 5000w tvs	Datasheet	2,210In Stock	Cut Tape HK$23.34 HK$15.04 HK$11.51 HK$10.36 Reel HK$6.94 View HK$8.30 HK$7.60 HK$6.28 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes Automotive 600 W, 12 V TVS SM6F12AY STMicroelectronics 1: HK$6.08 11,951In Stock	Mfr. Part No. SM6F12AY Mouser Part No 511-SM6F12AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 600 W, 12 V TVS Learn More about STMicroelectronics stm sm6fxay tvs diodes	Datasheet	11,951In Stock	Cut Tape HK$6.08 HK$2.76 HK$2.43 HK$1.85 Reel HK$1.41 HK$1.23	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes Automotive 600 W, 20 V TVS SM6F20AY STMicroelectronics 1: HK$6.08 12,000In Stock	Mfr. Part No. SM6F20AY Mouser Part No 511-SM6F20AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 600 W, 20 V TVS Learn More about STMicroelectronics stm sm6fxay tvs diodes	Datasheet	12,000In Stock	Cut Tape HK$6.08 HK$2.76 HK$2.43 HK$1.85 Reel HK$1.41 HK$1.23	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 5000 W, 58 V TVS SMC50J58CA STMicroelectronics 1: HK$23.84 2,282In Stock	Mfr. Part No. SMC50J58CA Mouser Part No 511-SMC50J58CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 5000 W, 58 V TVS Learn More about STMicroelectronics stm smc50j tvs	Datasheet	2,282In Stock	Cut Tape HK$23.84 HK$15.37 HK$11.75 HK$10.60 Reel HK$7.26 View HK$8.71 HK$6.45 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
SCRs 40A 800V High Temperature SCR in TO-220 Non insulated package TN4015H-8T STMicroelectronics 1: HK$22.28 1,975In Stock	Mfr. Part No. TN4015H-8T Mouser Part No 511-TN4015H-8T	STMicroelectronics	SCRs 40A 800V High Temperature SCR in TO-220 Non insulated package Learn More about STMicroelectronics stm tn4015h scr	Datasheet	1,975In Stock	HK$22.28 HK$11.01 HK$9.86 HK$7.90 View HK$7.80 HK$7.10	Min.: 1 Mult.: 1
SCRs 50 A 800 V High Temperature SCR in D2PAK package TN5015H-8G-TR STMicroelectronics 1: HK$27.04 1,535In Stock	Mfr. Part No. TN5015H-8G-TR Mouser Part No 511-TN5015H-8G-TR	STMicroelectronics	SCRs 50 A 800 V High Temperature SCR in D2PAK package Learn More about STMicroelectronics stm tn scrs	Datasheet	1,535In Stock	Cut Tape HK$27.04 HK$17.59 HK$12.25 HK$10.60 Reel HK$9.78 HK$9.21 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Triacs Auto Voltage Switch AVS1ACP08 STMicroelectronics 1: HK$37.24 12,342In Stock 9,338On Order	Mfr. Part No. AVS1ACP08 Mouser Part No 511-AVS1ACP08	STMicroelectronics	Triacs Auto Voltage Switch Learn More about STMicroelectronics stm standard products	Datasheet	12,342In Stock 9,338On Order On Order Ship Dates Mfr. No: AVS1ACP08 Stock: 12,342 Can Dispatch Immediately On Order: 2,000 Expected 13/11/2026 7,338 Expected 12/12/2026 Factory Lead Time: 52 Weeks	HK$37.24 HK$24.66 HK$22.36 HK$21.70 HK$21.13	Min.: 1 Mult.: 1
Triacs 25 Amp 600 Volt BTA24-600BWRG STMicroelectronics 1: HK$22.28 27,692In Stock	Mfr. Part No. BTA24-600BWRG Mouser Part No 511-BTA24-600BW	STMicroelectronics	Triacs 25 Amp 600 Volt Learn More about STMicroelectronics stm standard products	Datasheet	27,692In Stock	HK$22.28 HK$15.95 HK$11.26 HK$9.21 View HK$8.71 HK$8.20 HK$7.93	Min.: 1 Mult.: 1

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