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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.
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi SM4T47CAY STMicroelectronics 1: HK$14.47 144In Stock 5,000Expected 5/11/2026	Mfr. Part No. SM4T47CAY Mouser Part No 511-SM4T47CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	144In Stock 5,000Expected 5/11/2026	Cut Tape HK$14.47 HK$9.12 HK$6.83 HK$6.09 Reel HK$3.35 View HK$4.18 HK$4.04 HK$3.99 HK$3.21 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi SM4T50CAY STMicroelectronics 1: HK$9.37 3,489In Stock 5,000Expected 5/11/2026	Mfr. Part No. SM4T50CAY Mouser Part No 511-SM4T50CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	3,489In Stock 5,000Expected 5/11/2026	Cut Tape HK$9.37 HK$4.33 HK$3.83 HK$2.96 Reel HK$2.18 View HK$2.92 HK$2.74 HK$1.94 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni SM4T6V7AY STMicroelectronics 1: HK$8.88 5,456In Stock	Mfr. Part No. SM4T6V7AY Mouser Part No 511-SM4T6V7AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	5,456In Stock	Cut Tape HK$8.88 HK$4.08 HK$3.61 HK$2.78 Reel HK$2.04 View HK$2.71 HK$2.60 HK$1.82 HK$1.79 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes Automotive 600 W, 30 V TVS SM6F30AY STMicroelectronics 1: HK$6.08 210In Stock 9,000Expected 5/11/2026	Mfr. Part No. SM6F30AY Mouser Part No 511-SM6F30AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 600 W, 30 V TVS Learn More about STMicroelectronics stm sm6fxay tvs diodes	Datasheet	210In Stock 9,000Expected 5/11/2026	Cut Tape HK$6.08 HK$2.76 HK$2.43 HK$1.85 Reel HK$1.73 View HK$1.29 HK$1.13	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 600W 10V Bidirect SM6T10CA STMicroelectronics 1: HK$6.08 9,418In Stock 7,500Expected 14/12/2026	Mfr. Part No. SM6T10CA Mouser Part No 511-SM6T10CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 10V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	9,418In Stock 7,500Expected 14/12/2026	Cut Tape HK$6.08 HK$2.76 HK$2.43 HK$1.85 Reel HK$1.45 HK$1.26 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi SM6T10CAY STMicroelectronics 1: HK$11.43 2,585In Stock	Mfr. Part No. SM6T10CAY Mouser Part No 511-SM6T10CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi Learn More about STMicroelectronics stmicro sm6ty 600w transil	Datasheet	2,585In Stock	Cut Tape HK$11.43 HK$7.14 HK$5.40 HK$4.69 Reel HK$2.84 View HK$3.64 HK$3.34 HK$2.51 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 12V Unidirect SM6T12A STMicroelectronics 1: HK$7.40 5,424In Stock	Mfr. Part No. SM6T12A Mouser Part No 511-SM6T12A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 12V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	5,424In Stock	Cut Tape HK$7.40 HK$3.37 HK$2.98 HK$2.28 Reel HK$1.80 View HK$1.57 HK$1.50 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 12V Bidirect SM6T12CA STMicroelectronics 1: HK$6.08 7,171In Stock 6,700Expected 5/11/2026	Mfr. Part No. SM6T12CA Mouser Part No 511-SM6T12CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 12V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	7,171In Stock 6,700Expected 5/11/2026	Cut Tape HK$6.08 HK$2.76 HK$2.43 HK$1.85 Reel HK$1.45 HK$1.26 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 150V Bidirect SM6T150CA STMicroelectronics 1: HK$8.63 5,805In Stock	Mfr. Part No. SM6T150CA Mouser Part No 511-SM6T150CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 150V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	5,805In Stock	Cut Tape HK$8.63 HK$3.97 HK$3.51 HK$2.70 Reel HK$2.15 View HK$2.63 HK$1.70 HK$1.64 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Uni SM6T15AY STMicroelectronics 1: HK$10.19 4,686In Stock	Mfr. Part No. SM6T15AY Mouser Part No 511-SM6T15AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Uni Learn More about STMicroelectronics stmicro sm6ty 600w transil	Datasheet	4,686In Stock	Cut Tape HK$10.19 HK$4.73 HK$4.19 HK$3.25 Reel HK$2.61 View HK$3.24 HK$2.30 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 15V Bidirect SM6T15CA STMicroelectronics 1: HK$6.08 1,027In Stock 20,000Expected 5/11/2026	Mfr. Part No. SM6T15CA Mouser Part No 511-SM6T15CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 15V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	1,027In Stock 20,000Expected 5/11/2026	Cut Tape HK$6.08 HK$2.76 HK$2.43 HK$1.85 Reel HK$1.54 HK$1.33 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes Automotive 600 W, 14.1 V TVS in SMB SM6T16V5CAY STMicroelectronics 1: HK$7.73 2,609In Stock	Mfr. Part No. SM6T16V5CAY Mouser Part No 511-SM6T16V5CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 600 W, 14.1 V TVS in SMB Learn More about STMicroelectronics stmicro sm6ty 600w transil	Datasheet	2,609In Stock	Cut Tape HK$7.73 HK$4.80 HK$3.13 HK$2.36 Reel HK$1.88 View HK$2.22 HK$1.60 HK$1.58 HK$1.50 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 18V Bidirect SM6T18CA STMicroelectronics 1: HK$6.00 7,476In Stock 27,500On Order	Mfr. Part No. SM6T18CA Mouser Part No 511-SM6T18CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 18V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	7,476In Stock 27,500On Order On Order Ship Dates Mfr. No: SM6T18CA Stock: 7,476 Can Dispatch Immediately On Order: 10,000 Expected 12/11/2026 17,500 Expected 25/1/2027 Factory Lead Time: 16 Weeks	Cut Tape HK$6.00 HK$2.70 HK$2.38 HK$1.80 Reel HK$1.41 HK$1.22 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 200V Unidirect SM6T200A STMicroelectronics 1: HK$7.89 1,421In Stock 7,500Expected 1/11/2027	Mfr. Part No. SM6T200A Mouser Part No 511-SM6T200A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 200V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	1,421In Stock 7,500Expected 1/11/2027	Cut Tape HK$7.89 HK$3.63 HK$3.20 HK$2.46 Reel HK$1.95 View HK$2.45 HK$1.71 HK$1.62 HK$1.53 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 200V Bidirect SM6T200CA STMicroelectronics 1: HK$8.63 5,015In Stock 5,000Expected 15/2/2027	Mfr. Part No. SM6T200CA Mouser Part No 511-SM6T200CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 200V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	5,015In Stock 5,000Expected 15/2/2027	Cut Tape HK$8.63 HK$3.97 HK$3.51 HK$2.70 Reel HK$2.15 View HK$2.63 HK$1.89 HK$1.77 HK$1.64 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 220V Bidirect SM6T220CA STMicroelectronics 1: HK$8.38 3,448In Stock 7,500Expected 10/12/2026	Mfr. Part No. SM6T220CA Mouser Part No 511-SM6T220CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 220V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	3,448In Stock 7,500Expected 10/12/2026	Cut Tape HK$8.38 HK$3.87 HK$3.42 HK$2.63 Reel HK$2.10 View HK$1.83 HK$1.81 HK$1.74 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 22V Bidirect SM6T22CA STMicroelectronics 1: HK$6.08 4,171In Stock	Mfr. Part No. SM6T22CA Mouser Part No 511-SM6T22CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 22V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	4,171In Stock	Cut Tape HK$6.08 HK$2.76 HK$2.43 HK$1.85 Reel HK$1.45 HK$1.26 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 24V Bidirect SM6T24CA STMicroelectronics 1: HK$6.08 891In Stock 7,500Expected 5/11/2026	Mfr. Part No. SM6T24CA Mouser Part No 511-SM6T24CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 24V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	891In Stock 7,500Expected 5/11/2026	Cut Tape HK$6.08 HK$2.76 HK$2.43 HK$1.85 Reel HK$1.45 View HK$1.70 HK$1.26 HK$1.21 HK$1.18 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi SM6T24CAY STMicroelectronics 1: HK$18.08 1,768In Stock	Mfr. Part No. SM6T24CAY Mouser Part No 511-SM6T24CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi Learn More about STMicroelectronics stmicro sm6ty 600w transil	Datasheet	1,768In Stock	Cut Tape HK$18.08 HK$11.34 HK$9.12 HK$7.58 Reel HK$4.69 View HK$5.91 HK$5.09 HK$4.47 HK$4.29 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 27V Bidirect SM6T27CA STMicroelectronics 1: HK$6.08 6,488In Stock	Mfr. Part No. SM6T27CA Mouser Part No 511-SM6T27CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 27V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	6,488In Stock	Cut Tape HK$6.08 HK$2.76 HK$2.43 HK$1.85 Reel HK$1.45 View HK$1.39 HK$1.22 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi SM6T27CAY STMicroelectronics 1: HK$15.95 2,610In Stock 30,000On Order	Mfr. Part No. SM6T27CAY Mouser Part No 511-SM6T27CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi Learn More about STMicroelectronics stmicro sm6ty 600w transil	Datasheet	2,610In Stock 30,000On Order On Order Ship Dates Mfr. No: SM6T27CAY Stock: 2,610 Can Dispatch Immediately On Order: 22,500 Expected 15/2/2027 7,500 TBD Factory Lead Time: 16 Weeks	Cut Tape HK$15.95 HK$10.19 HK$7.64 HK$6.83 Reel HK$4.44 View HK$5.40 HK$5.06 HK$3.97 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 33V Unidirect SM6T33A STMicroelectronics 1: HK$5.75 11,237In Stock 27,500On Order	Mfr. Part No. SM6T33A Mouser Part No 511-SM6T33A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 33V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	11,237In Stock 27,500On Order On Order Ship Dates Mfr. No: SM6T33A Stock: 11,237 Can Dispatch Immediately On Order: 12,500 Expected 5/11/2026 15,000 Expected 21/12/2026 Factory Lead Time: 16 Weeks	Cut Tape HK$5.75 HK$2.61 HK$2.29 HK$1.73 Reel HK$1.33 View HK$1.18 HK$1.09 HK$1.04 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 33V Bidirect SM6T33CA STMicroelectronics 1: HK$6.08 7,254In Stock 85,000On Order	Mfr. Part No. SM6T33CA Mouser Part No 511-SM6T33CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 33V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	7,254In Stock 85,000On Order On Order Ship Dates Mfr. No: SM6T33CA Stock: 7,254 Can Dispatch Immediately On Order: 60,000 Expected 30/12/2026 25,000 Expected 28/4/2027 Factory Lead Time: 16 Weeks	Cut Tape HK$6.08 HK$2.76 HK$2.43 HK$1.85 Reel HK$1.41 View HK$1.26 HK$1.21 HK$1.15 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 39V Bidirect SM6T39CA STMicroelectronics 1: HK$6.08 6,295In Stock 7,500Expected 14/12/2026	Mfr. Part No. SM6T39CA Mouser Part No 511-SM6T39CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 39V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	6,295In Stock 7,500Expected 14/12/2026	Cut Tape HK$6.08 HK$2.76 HK$2.43 HK$1.85 Reel HK$1.44 View HK$1.26 HK$1.21 HK$1.15 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi SM6T47CAY STMicroelectronics 1: HK$10.44 2,829In Stock	Mfr. Part No. SM6T47CAY Mouser Part No 511-SM6T47CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi Learn More about STMicroelectronics stmicro sm6ty 600w transil	Datasheet	2,829In Stock	Cut Tape HK$10.44 HK$4.86 HK$4.30 HK$3.33 Reel HK$2.52 View HK$3.21 HK$2.22 MouseReel Available	Min.: 1 Mult.: 1 : 2,500

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