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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 1500W 36V Bidirect SM15T36CA STMicroelectronics 1: HK$9.78 3,646In Stock 10,000Expected 23/12/2026	Mfr. Part No. SM15T36CA Mouser Part No 511-SM15T36CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 36V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	3,646In Stock 10,000Expected 23/12/2026	Cut Tape HK$9.78 HK$4.57 HK$3.97 HK$3.07 Reel HK$2.46 View HK$2.87 HK$2.17 HK$2.06 HK$2.04 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500W 39V Unidirect SM15T39A STMicroelectronics 1: HK$14.22 250In Stock 12,100Expected 8/10/2026	Mfr. Part No. SM15T39A Mouser Part No 511-SM15T39A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 39V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	250In Stock 12,100Expected 8/10/2026	Cut Tape HK$14.22 HK$8.96 HK$6.87 HK$5.91 Reel HK$3.69 View HK$4.57 HK$3.88 HK$3.35 HK$3.17 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Uni SM15T39AY STMicroelectronics 1: HK$8.63 2,024In Stock 2,500Expected 12/10/2026	Mfr. Part No. SM15T39AY Mouser Part No 511-SM15T39AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Uni Learn More about STMicroelectronics stmicro sm15ty transil	Datasheet	2,024In Stock 2,500Expected 12/10/2026	Cut Tape HK$8.63 HK$6.96 HK$5.83 HK$4.70 Reel HK$3.59 View HK$4.35 HK$3.37 HK$3.30 HK$3.27 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Uni SM15T47AY STMicroelectronics 1: HK$8.71 958In Stock	Mfr. Part No. SM15T47AY Mouser Part No 511-SM15T47AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Uni Learn More about STMicroelectronics stmicro sm15ty transil	Datasheet	958In Stock	Cut Tape HK$8.71 HK$6.61 HK$5.42 HK$4.72 Reel HK$4.72 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500W 68V Unidirect SM15T68A STMicroelectronics 1: HK$14.06 2,286In Stock	Mfr. Part No. SM15T68A Mouser Part No 511-SM15T68A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 68V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	2,286In Stock	Cut Tape HK$14.06 HK$7.03 HK$5.89 HK$4.63 Reel HK$3.48 View HK$4.41 HK$3.27 HK$3.24 HK$3.16 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Bi SM15T75CAY STMicroelectronics 1: HK$9.04 2,481In Stock	Mfr. Part No. SM15T75CAY Mouser Part No 511-SM15T75CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Bi Learn More about STMicroelectronics stmicro sm15ty transil	Datasheet	2,481In Stock	Cut Tape HK$9.04 HK$7.36 HK$5.96 HK$4.83 Reel HK$3.49 View HK$4.36 HK$3.39 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Bi SM15T7V5CAY STMicroelectronics 1: HK$9.29 1,348In Stock	Mfr. Part No. SM15T7V5CAY Mouser Part No 511-SM15T7V5CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Bi Learn More about STMicroelectronics stmicro sm15ty transil	Datasheet	1,348In Stock	Cut Tape HK$9.29 HK$6.90 HK$5.72 HK$4.70 Reel HK$3.66 View HK$4.04 HK$3.49 HK$3.39 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V tp 70V Uni SM15T82AY STMicroelectronics 1: HK$12.91 911In Stock	Mfr. Part No. SM15T82AY Mouser Part No 511-SM15T82AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V tp 70V Uni Learn More about STMicroelectronics stmicro sm15ty transil	Datasheet	911In Stock	Cut Tape HK$12.91 HK$6.96 HK$6.01 HK$4.73 Reel HK$3.47 View HK$3.30 HK$3.21 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Bi SM15T82CAY STMicroelectronics 1: HK$9.12 7In Stock	Mfr. Part No. SM15T82CAY Mouser Part No 511-SM15T82CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Bi Learn More about STMicroelectronics stmicro sm15ty transil	Datasheet	7In Stock	Cut Tape HK$9.12 HK$7.59 HK$6.30 HK$5.08 Reel HK$3.81 View HK$4.64 HK$3.55 HK$3.51 HK$3.50 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes Automotive 3000 W, 13 V TVS in SMC SM30T15AY STMicroelectronics 1: HK$10.93 841In Stock 5,000Expected 7/12/2026	Mfr. Part No. SM30T15AY Mouser Part No 511-SM30T15AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 3000 W, 13 V TVS in SMC Learn More about STMicroelectronics stmicro sm30ty transil	Datasheet	841In Stock 5,000Expected 7/12/2026	Cut Tape HK$10.93 HK$7.75 HK$6.78 HK$5.47 Reel HK$4.32 View HK$4.84 HK$4.04 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 3000 W 28kW Transil 15V to 33V Bi SM30T21CAY STMicroelectronics 1: HK$11.10 1,085In Stock 2,500Expected 26/10/2026	Mfr. Part No. SM30T21CAY Mouser Part No 511-SM30T21CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 3000 W 28kW Transil 15V to 33V Bi Learn More about STMicroelectronics stmicro sm30ty transil	Datasheet	1,085In Stock 2,500Expected 26/10/2026	Cut Tape HK$11.10 HK$8.02 HK$6.95 HK$5.68 Reel HK$4.46 View HK$4.92 HK$4.17 HK$4.13 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes Automotive 3000 W, 188 V TVS SM30T220CAY STMicroelectronics 1: HK$20.22 2,490In Stock	Mfr. Part No. SM30T220CAY Mouser Part No 511-SM30T220CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 3000 W, 188 V TVS Learn More about STMicroelectronics stmicro sm30ty transil	Datasheet	2,490In Stock	Cut Tape HK$20.22 HK$10.77 HK$8.88 HK$7.31 Reel HK$6.46 View HK$6.79 HK$6.25 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 3000 W 28kW Transil 15V to 33V Uni SM30T26AY STMicroelectronics 1: HK$12.17 915In Stock	Mfr. Part No. SM30T26AY Mouser Part No 511-SM30T26AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 3000 W 28kW Transil 15V to 33V Uni Learn More about STMicroelectronics stmicro sm30ty transil	Datasheet	915In Stock	Cut Tape HK$12.17 HK$8.38 HK$7.02 HK$5.68 Reel HK$4.33 View HK$5.09 HK$4.11 HK$4.05 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 3000 W 28kW Transil 15V to 33V Bi SM30T26CAY STMicroelectronics 1: HK$12.74 1,815In Stock	Mfr. Part No. SM30T26CAY Mouser Part No 511-SM30T26CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 3000 W 28kW Transil 15V to 33V Bi Learn More about STMicroelectronics stmicro sm30ty transil	Datasheet	1,815In Stock	Cut Tape HK$12.74 HK$8.71 HK$7.31 HK$5.91 Reel HK$4.73 View HK$5.46 HK$4.27 HK$4.23 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 3000 W 36kW Transil 15V to 33V Bi SM30T28CAY STMicroelectronics 1: HK$12.74 895In Stock 237,500On Order	Mfr. Part No. SM30T28CAY Mouser Part No 511-SM30T28CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 3000 W 36kW Transil 15V to 33V Bi Learn More about STMicroelectronics stmicro sm30ty transil	Datasheet	895In Stock 237,500On Order On Order Ship Dates Mfr. No: SM30T28CAY Stock: 895 Can Dispatch Immediately On Order: 87,500 Expected 7/12/2026 150,000 Expected 11/1/2027 Factory Lead Time: 16 Weeks	Cut Tape HK$12.74 HK$9.04 HK$7.51 HK$6.07 Reel HK$4.87 View HK$5.62 HK$4.36 HK$4.27 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 3000 W 28kW Transil 15V to 33V Bi SM30T35CAY STMicroelectronics 1: HK$11.10 2,271In Stock 5,000Expected 30/11/2026	Mfr. Part No. SM30T35CAY Mouser Part No 511-SM30T35CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 3000 W 28kW Transil 15V to 33V Bi Learn More about STMicroelectronics stmicro sm30ty transil	Datasheet	2,271In Stock 5,000Expected 30/11/2026	Cut Tape HK$11.10 HK$8.71 HK$7.31 HK$5.72 Reel HK$4.23 View HK$5.05 HK$4.13 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes Automotive 3000 W, 48 V TVS in SMC SM30T56CAY STMicroelectronics 1: HK$17.43 2,294In Stock	Mfr. Part No. SM30T56CAY Mouser Part No 511-SM30T56CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 3000 W, 48 V TVS in SMC Learn More about STMicroelectronics stmicro sm30ty transil	Datasheet	2,294In Stock	Cut Tape HK$17.43 HK$9.12 HK$7.60 HK$6.26 Reel HK$4.74 View HK$5.71 HK$4.51 HK$4.40 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes Automotive 3000 W, 70 V TVS SM30T82CAY STMicroelectronics 1: HK$20.22 2,480In Stock	Mfr. Part No. SM30T82CAY Mouser Part No 511-SM30T82CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 3000 W, 70 V TVS Learn More about STMicroelectronics stmicro sm30ty transil	Datasheet	2,480In Stock	Cut Tape HK$20.22 HK$10.77 HK$8.88 HK$7.31 Reel HK$6.46 View HK$6.79 HK$6.25 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi SM4T14CAY STMicroelectronics 1: HK$8.80 2,743In Stock	Mfr. Part No. SM4T14CAY Mouser Part No 511-SM4T14CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	2,743In Stock	Cut Tape HK$8.80 HK$4.33 HK$3.58 HK$2.77 Reel HK$2.17 View HK$2.63 HK$2.18 HK$1.94 HK$1.92 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni SM4T15AY STMicroelectronics 1: HK$7.97 1,941In Stock	Mfr. Part No. SM4T15AY Mouser Part No 511-SM4T15AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	1,941In Stock	Cut Tape HK$7.97 HK$4.93 HK$3.20 HK$2.45 Reel HK$1.71 View HK$2.21 HK$2.06 HK$1.59 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi SM4T15CAY STMicroelectronics 1: HK$8.80 2,888In Stock 4,500Expected 29/10/2026	Mfr. Part No. SM4T15CAY Mouser Part No 511-SM4T15CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	2,888In Stock 4,500Expected 29/10/2026	Cut Tape HK$8.80 HK$4.33 HK$3.58 HK$2.77 Reel HK$1.92 View HK$2.63 HK$2.36 HK$1.72 HK$1.71 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi SM4T28CAY STMicroelectronics 1: HK$13.32 91In Stock	Mfr. Part No. SM4T28CAY Mouser Part No 511-SM4T28CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	91In Stock	Cut Tape HK$13.32 HK$6.69 HK$5.57 HK$4.37 View Reel HK$3.21 HK$4.16 HK$3.63 HK$3.21 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni SM4T33AY STMicroelectronics 1: HK$12.74 2,210In Stock	Mfr. Part No. SM4T33AY Mouser Part No 511-SM4T33AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	2,210In Stock	Cut Tape HK$12.74 HK$6.47 HK$5.35 HK$4.20 Reel HK$3.10 View HK$3.99 HK$3.48 HK$2.93 HK$2.92 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni SM4T47AY STMicroelectronics 1: HK$12.74 3,028In Stock	Mfr. Part No. SM4T47AY Mouser Part No 511-SM4T47AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	3,028In Stock	Cut Tape HK$12.74 HK$6.47 HK$5.35 HK$4.53 Reel HK$2.89 HK$2.84 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi SM4T47CAY STMicroelectronics 1: HK$14.47 194In Stock 5,000Expected 16/11/2026	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	194In Stock 5,000Expected 16/11/2026	Cut Tape HK$14.47 HK$7.92 HK$6.09 HK$4.12 Reel HK$3.02 View HK$3.73 HK$3.16 HK$2.97 MouseReel Available	Min.: 1 Mult.: 1 : 5,000

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