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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 Uni SM4T39AY STMicroelectronics 1: HK$15.37 7,648In Stock 10,000Expected 5/11/2026	Mfr. Part No. SM4T39AY Mouser Part No 511-SM4T39AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	7,648In Stock 10,000Expected 5/11/2026	Cut Tape HK$15.37 HK$9.70 HK$7.76 HK$6.30 Reel HK$3.58 View HK$4.87 HK$4.62 HK$3.08 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi SM4T39CAY STMicroelectronics 1: HK$14.96 4,330In Stock	Mfr. Part No. SM4T39CAY Mouser Part No 511-SM4T39CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	4,330In Stock	Cut Tape HK$14.96 HK$9.54 HK$7.10 HK$6.34 Reel HK$3.80 View HK$5.00 HK$4.64 HK$4.54 HK$3.44 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi SM4T68CAY STMicroelectronics 1: HK$14.14 4,910In Stock	Mfr. Part No. SM4T68CAY Mouser Part No 511-SM4T68CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	4,910In Stock	Cut Tape HK$14.14 HK$8.96 HK$6.69 HK$5.97 Reel HK$3.35 View HK$4.69 HK$4.33 HK$4.23 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 SM4T6V7CAY STMicroelectronics 1: HK$14.14 7,085In Stock	Mfr. Part No. SM4T6V7CAY Mouser Part No 511-SM4T6V7CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	7,085In Stock	Cut Tape HK$14.14 HK$8.96 HK$6.69 HK$5.97 Reel HK$3.63 View HK$4.69 HK$4.33 HK$4.23 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 SM4T7V6CAY STMicroelectronics 1: HK$9.37 6,407In Stock	Mfr. Part No. SM4T7V6CAY Mouser Part No 511-SM4T7V6CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	6,407In Stock	Cut Tape HK$9.37 HK$4.33 HK$3.83 HK$2.96 Reel HK$2.56 View HK$2.89 HK$2.68 HK$2.19 HK$2.10 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 600W 100V Unidirect SM6T100A STMicroelectronics 1: HK$7.89 9,755In Stock	Mfr. Part No. SM6T100A Mouser Part No 511-SM6T100A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 100V Unidirect Learn More about STMicroelectronics stm 600w tvs diode	Datasheet	9,755In Stock	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$1.50 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 100V Bidirect SM6T100CA STMicroelectronics 1: HK$8.38 11,959In Stock	Mfr. Part No. SM6T100CA Mouser Part No 511-SM6T100CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 100V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	11,959In Stock	Cut Tape HK$8.38 HK$3.84 HK$3.39 HK$2.61 Reel HK$2.07 View HK$1.82 HK$1.74 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 15V Unidirect SM6T15A STMicroelectronics 1: HK$5.75 33,697In Stock	Mfr. Part No. SM6T15A Mouser Part No 511-SM6T15A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 15V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	33,697In Stock	Cut Tape HK$5.75 HK$2.61 HK$2.29 HK$1.73 Reel HK$1.29 View HK$1.66 HK$1.18 HK$1.14 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 6,186In 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	6,186In 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 600 W 4kW Transil 6V to 70V Bi SM6T15CAY STMicroelectronics 1: HK$10.93 10,375In Stock	Mfr. Part No. SM6T15CAY Mouser Part No 511-SM6T15CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi Learn More about STMicroelectronics stmicro sm6ty 600w transil	Datasheet	10,375In Stock	Cut Tape HK$10.93 HK$6.86 HK$5.10 HK$4.52 Reel HK$2.90 View HK$3.52 HK$3.25 HK$2.61 HK$2.56 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 18V Unidirect SM6T18A STMicroelectronics 1: HK$5.75 16,394In Stock	Mfr. Part No. SM6T18A Mouser Part No 511-SM6T18A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 18V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	16,394In Stock	Cut Tape HK$5.75 HK$2.61 HK$2.29 HK$1.73 Reel HK$1.27 View HK$1.67 HK$1.16 HK$1.06 HK$1.04 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 22V Unidirect SM6T22A STMicroelectronics 1: HK$5.67 26,245In Stock	Mfr. Part No. SM6T22A Mouser Part No 511-SM6T22A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 22V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	26,245In Stock	Cut Tape HK$5.67 HK$2.54 HK$2.23 HK$1.69 Reel HK$1.32 View HK$1.25 HK$1.18 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi SM6T22CAY STMicroelectronics 1: HK$16.69 8,348In Stock	Mfr. Part No. SM6T22CAY Mouser Part No 511-SM6T22CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi Learn More about STMicroelectronics stmicro sm6ty 600w transil	Datasheet	8,348In Stock	Cut Tape HK$16.69 HK$10.69 HK$8.01 HK$7.16 Reel HK$4.68 View HK$5.67 HK$5.35 HK$4.18 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes Automotive 600 W, 213 V TVS in SMB SM6T250CAY STMicroelectronics 1: HK$9.78 27,358In Stock	Mfr. Part No. SM6T250CAY Mouser Part No 511-SM6T250CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 600 W, 213 V TVS in SMB Learn More about STMicroelectronics stm standard products	Datasheet	27,358In Stock	Cut Tape HK$9.78 HK$4.55 HK$4.03 HK$3.12 Reel HK$2.50 View HK$3.07 HK$2.20 HK$2.07 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 9,860In Stock	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	9,860In Stock	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 30V Unidirect SM6T30A STMicroelectronics 1: HK$6.90 24,505In Stock 5,000Expected 1/12/2026	Mfr. Part No. SM6T30A Mouser Part No 511-SM6T30A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 30V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	24,505In Stock 5,000Expected 1/12/2026	Cut Tape HK$6.90 HK$3.37 HK$2.90 HK$2.26 Reel HK$1.80 View HK$2.15 HK$1.57 HK$1.41 HK$1.36 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 30V Bidirect SM6T30CA STMicroelectronics 1: HK$6.08 28,417In Stock	Mfr. Part No. SM6T30CA Mouser Part No 511-SM6T30CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 30V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	28,417In Stock	Cut Tape HK$6.08 HK$2.76 HK$2.43 HK$1.85 Reel HK$1.32 View HK$1.71 HK$1.23 HK$1.21 HK$1.13 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 33V Unidirect SM6T33A STMicroelectronics 1: HK$5.75 11,622In 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	11,622In Stock 27,500On Order On Order Ship Dates Mfr. No: SM6T33A Stock: 11,622 Can Dispatch Immediately On Order: 12,500 Expected 5/11/2026 15,000 Expected 11/1/2027 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 600 W 4kW Transil 6V to 70V Bi SM6T33CAY STMicroelectronics 1: HK$14.39 29,648In Stock	Mfr. Part No. SM6T33CAY Mouser Part No 511-SM6T33CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi Learn More about STMicroelectronics stmicro sm6ty 600w transil	Datasheet	29,648In Stock	Cut Tape HK$14.39 HK$9.21 HK$6.85 HK$6.11 Reel HK$3.71 View HK$4.81 HK$4.50 HK$3.45 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 36V Unidirect SM6T36A STMicroelectronics 1: HK$5.67 27,038In Stock	Mfr. Part No. SM6T36A Mouser Part No 511-SM6T36A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 36V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	27,038In Stock	Cut Tape HK$5.67 HK$2.54 HK$2.23 HK$1.69 Reel HK$1.30 HK$1.14 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 36V Bidirect SM6T36CA STMicroelectronics 1: HK$8.38 16,542In Stock	Mfr. Part No. SM6T36CA Mouser Part No 511-SM6T36CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 36V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	16,542In Stock	Cut Tape HK$8.38 HK$3.84 HK$3.39 HK$2.61 Reel HK$2.07 View HK$1.82 HK$1.78 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 39V Unidirect SM6T39A STMicroelectronics 1: HK$6.82 32,430In Stock 10,000Expected 5/11/2026	Mfr. Part No. SM6T39A Mouser Part No 511-SM6T39A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 39V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	32,430In Stock 10,000Expected 5/11/2026	Cut Tape HK$6.82 HK$3.37 HK$2.86 HK$2.22 Reel HK$1.80 View HK$2.11 HK$1.57 HK$1.54 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi SM6T39CAY STMicroelectronics 1: HK$15.95 2,810In Stock	Mfr. Part No. SM6T39CAY Mouser Part No 511-SM6T39CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi Learn More about STMicroelectronics stmicro sm6ty 600w transil	Datasheet	2,810In Stock	Cut Tape HK$15.95 HK$10.19 HK$7.64 HK$6.83 Reel HK$4.37 View HK$5.40 HK$5.06 HK$3.97 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi SM6T42CAY STMicroelectronics 1: HK$9.86 5,975In Stock	Mfr. Part No. SM6T42CAY Mouser Part No 511-SM6T42CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Bi Learn More about STMicroelectronics stmicro sm6ty 600w transil	Datasheet	5,975In Stock	Cut Tape HK$9.86 HK$4.58 HK$4.06 HK$3.14 Reel HK$2.52 View HK$3.11 HK$2.22 HK$2.03 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Uni SM6T47AY STMicroelectronics 1: HK$9.21 7,046In Stock	Mfr. Part No. SM6T47AY Mouser Part No 511-SM6T47AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Uni Learn More about STMicroelectronics stmicro sm6ty 600w transil	Datasheet	7,046In Stock	Cut Tape HK$9.21 HK$4.25 HK$3.76 HK$2.91 Reel HK$2.33 View HK$2.86 HK$2.05 MouseReel Available	Min.: 1 Mult.: 1 : 2,500

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