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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 Automotive dual-line TVS in SOT23-3L for CAN bus (24 V system) ESDCAN06-2BLY STMicroelectronics 1: HK$4.03 110,509In Stock	Mfr. Part No. ESDCAN06-2BLY Mouser Part No 511-ESDCAN06-2BLY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive dual-line TVS in SOT23-3L for CAN bus (24 V system) Learn More about STMicroelectronics stm esdcan0x automotive tvs diodes	Datasheet	110,509In Stock	Cut Tape HK$4.03 HK$1.78 HK$1.56 HK$1.17 Reel HK$0.847 View HK$1.12 HK$0.838 HK$0.707 HK$0.682 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes Low Clamping TVS ESD Low Cap Uni Single ESDZL5-1F4 STMicroelectronics 1: HK$1.07 339,519In Stock	Mfr. Part No. ESDZL5-1F4 Mouser Part No 511-ESDZL5-1F4	STMicroelectronics	ESD Protection Diodes / TVS Diodes Low Clamping TVS ESD Low Cap Uni Single Learn More about STMicroelectronics stm esdz tvs diodes	Datasheet	339,519In Stock	Cut Tape HK$1.07 HK$0.518 HK$0.411 HK$0.329 View Reel HK$0.14 HK$0.247 HK$0.222 HK$0.206 HK$0.156 HK$0.14 MouseReel Available	Min.: 1 Mult.: 1 : 15,000
ESD Protection Diodes / TVS Diodes Ultra Low clamping single line bidirectional ESD protection ESDZV5H-1BU2 STMicroelectronics 1: HK$1.64 242,371In Stock	Mfr. Part No. ESDZV5H-1BU2 Mouser Part No 511-ESDZV5H-1BU2	STMicroelectronics	ESD Protection Diodes / TVS Diodes Ultra Low clamping single line bidirectional ESD protection	Datasheet	242,371In Stock	Cut Tape HK$1.64 HK$0.732 HK$0.575 HK$0.469 View Reel HK$0.222 HK$0.353 HK$0.312 HK$0.288 HK$0.247 HK$0.222 MouseReel Available	Min.: 1 Mult.: 1 : 15,000
ESD Protection Diodes / TVS Diodes Ultra-low clamping single line bidirectional ESD protection ESDZV5HS-1BF4 STMicroelectronics 1: HK$1.07 459,375In Stock	Mfr. Part No. ESDZV5HS-1BF4 Mouser Part No 511-ESDZV5HS-1BF4	STMicroelectronics	ESD Protection Diodes / TVS Diodes Ultra-low clamping single line bidirectional ESD protection Learn More about STMicroelectronics stm esdzv5 1bf4 tvs diode	Datasheet	459,375In Stock	Cut Tape HK$1.07 HK$0.518 HK$0.353 HK$0.296 View Reel HK$0.14 HK$0.222 HK$0.189 HK$0.181 HK$0.156 HK$0.14	Min.: 1 Mult.: 1 : 15,000
ESD Protection Diodes / TVS Diodes 4-line ESD protection for high-speed lines HSP053-4M5 STMicroelectronics 1: HK$3.86 186,996In Stock	Mfr. Part No. HSP053-4M5 Mouser Part No 511-HSP053-4M5	STMicroelectronics	ESD Protection Diodes / TVS Diodes 4-line ESD protection for high-speed lines Learn More about STMicroelectronics stm hsp053 4m5 array	Datasheet	186,996In Stock	Cut Tape HK$3.86 HK$1.87 HK$1.36 HK$1.21 Reel HK$0.625 View HK$0.822 HK$0.715 HK$0.534 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
ESD Protection Diodes / TVS Diodes Automotive 27 V TVS for load dump in D2PAK LDP01-30AY STMicroelectronics 1: HK$34.85 7,785In Stock	Mfr. Part No. LDP01-30AY Mouser Part No 511-LDP01-30AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 27 V TVS for load dump in D2PAK	Datasheet	7,785In Stock	Cut Tape HK$34.85 HK$22.93 HK$17.76 HK$16.03 Reel HK$12.17 View HK$13.32 HK$11.51 HK$11.43 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000
ESD Protection Diodes / TVS Diodes Automotive 30 V TVS for load dump in D2PAK LDP01-35AY STMicroelectronics 1: HK$31.81 6,186In Stock 4,000Expected 7/12/2026	Mfr. Part No. LDP01-35AY Mouser Part No 511-LDP01-35AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 30 V TVS for load dump in D2PAK	Datasheet	6,186In Stock 4,000Expected 7/12/2026	Cut Tape HK$31.81 HK$21.45 HK$17.51 HK$15.45 Reel HK$11.92 View HK$13.32 HK$11.01 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
ESD Protection Diodes / TVS Diodes Automotive 33 V TVS for load dump in D2PAK LDP01-39AY STMicroelectronics 1: HK$34.94 1,144In Stock 2,000Expected 12/11/2026	Mfr. Part No. LDP01-39AY Mouser Part No 511-LDP01-39AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 33 V TVS for load dump in D2PAK	Datasheet	1,144In Stock 2,000Expected 12/11/2026	Cut Tape HK$34.94 HK$21.21 HK$17.18 HK$15.21 Reel HK$11.84 View HK$13.32 HK$11.18 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
ESD Protection Diodes / TVS Diodes Automotive 48 V TVS for load dump in D2PAK LDP01-56AY STMicroelectronics 1: HK$33.13 975In Stock	Mfr. Part No. LDP01-56AY Mouser Part No 511-LDP01-56AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 48 V TVS for load dump in D2PAK	Datasheet	975In Stock	Cut Tape HK$33.13 HK$22.44 HK$18.25 HK$16.11 Reel HK$12.49 View HK$13.97 HK$11.51 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
ESD Protection Diodes / TVS Diodes Automotive 58 V TVS for load dump in D2PAK LDP01-68AY STMicroelectronics 1: HK$36.09 1,528In Stock 2,000On Order	Mfr. Part No. LDP01-68AY Mouser Part No 511-LDP01-68AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 58 V TVS for load dump in D2PAK	Datasheet	1,528In Stock 2,000On Order	Cut Tape HK$36.09 HK$23.76 HK$18.50 HK$16.77 Reel HK$12.49 View HK$13.97 HK$11.51 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
ESD Protection Diodes / TVS Diodes 4kV 2000W Ppp Lightning Protection LNBTVS4-222S STMicroelectronics 1: HK$13.81 4,064In Stock	Mfr. Part No. LNBTVS4-222S Mouser Part No 511-LNBTVS4-222S	STMicroelectronics	ESD Protection Diodes / TVS Diodes 4kV 2000W Ppp Lightning Protection Learn More about STMicroelectronics stm standard products	Datasheet	4,064In Stock	Cut Tape HK$13.81 HK$8.55 HK$6.53 HK$5.77 Reel HK$3.73 View HK$4.55 HK$4.18 HK$3.32 HK$3.28 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes LTNG PRO LNB PW SUPP LNBTVS4-304S STMicroelectronics 1: HK$24.82 4,176In Stock	Mfr. Part No. LNBTVS4-304S Mouser Part No 511-LNBTVS4-304S	STMicroelectronics	ESD Protection Diodes / TVS Diodes LTNG PRO LNB PW SUPP Learn More about STMicroelectronics stm standard products	Datasheet	4,176In Stock	Cut Tape HK$24.82 HK$16.11 HK$12.33 HK$11.10 Reel HK$7.48 View HK$8.96 HK$8.47 HK$6.83 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes LTNG PRO LNB PW SUPP LNBTVS6-304S STMicroelectronics 1: HK$26.96 4,879In Stock	Mfr. Part No. LNBTVS6-304S Mouser Part No 511-LNBTVS6-304S	STMicroelectronics	ESD Protection Diodes / TVS Diodes LTNG PRO LNB PW SUPP Learn More about STMicroelectronics stm standard products	Datasheet	4,879In Stock	Cut Tape HK$26.96 HK$17.51 HK$13.48 HK$12.17 Reel HK$8.17 View HK$9.86 HK$9.04 HK$7.65 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
SCRs 0.25 Amp 200 Volt P0102BL 5AA4 STMicroelectronics 1: HK$6.17 46,877In Stock	Mfr. Part No. P0102BL 5AA4 Mouser Part No 511-P0102BL	STMicroelectronics	SCRs 0.25 Amp 200 Volt Learn More about STMicroelectronics stm standard products	Datasheet	46,877In Stock	Cut Tape HK$6.17 HK$3.81 HK$2.44 HK$2.23 Reel HK$1.60 View HK$1.99 HK$1.46 HK$1.27 HK$1.09 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
SCRs 0.8 Amp 400 Volt P0102DN 5AA4 STMicroelectronics 1: HK$4.69 28,345In Stock 42,000Expected 12/11/2026	Mfr. Part No. P0102DN 5AA4 Mouser Part No 511-P0102DN	STMicroelectronics	SCRs 0.8 Amp 400 Volt Learn More about STMicroelectronics stm standard products	Datasheet	28,345In Stock 42,000Expected 12/11/2026	Cut Tape HK$4.69 HK$2.91 HK$1.86 HK$1.40 Reel HK$1.24 View HK$1.05 HK$0.937 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
SCRs .025 SCRs P0109AL 5AA4 STMicroelectronics 1: HK$6.90 9,239In Stock	Mfr. Part No. P0109AL 5AA4 Mouser Part No 511-P0109AL5AA4	STMicroelectronics	SCRs .025 SCRs Learn More about STMicroelectronics stm standard products	Datasheet	9,239In Stock	Cut Tape HK$6.90 HK$4.62 HK$3.07 HK$2.41 Reel HK$1.92 View HK$2.14 HK$1.83 HK$1.64 HK$1.63 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes Batt & Overvolt Prot RBO40-40G STMicroelectronics 1: HK$39.95 3,045In Stock	Mfr. Part No. RBO40-40G Mouser Part No 511-RBO40-40G	STMicroelectronics	ESD Protection Diodes / TVS Diodes Batt & Overvolt Prot	Datasheet	3,045In Stock	HK$39.95 HK$26.39 HK$20.63 HK$18.74 View HK$15.37 HK$14.96	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes Reversed Battery OverVolt Prot RBO40-40G-TR STMicroelectronics 1: HK$38.88 3,283In Stock 2,000Expected 15/11/2027	Mfr. Part No. RBO40-40G-TR Mouser Part No 511-RBO40-40G-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes Reversed Battery OverVolt Prot	Datasheet	3,283In Stock 2,000Expected 15/11/2027	Cut Tape HK$38.88 HK$25.73 HK$20.06 HK$18.17 Reel HK$13.89 View HK$15.45 HK$12.58 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
ESD Protection Diodes / TVS Diodes 1500W 10V Bidirect SM15T10CA STMicroelectronics 1: HK$12.91 3,523In Stock	Mfr. Part No. SM15T10CA Mouser Part No 511-SM15T10CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 10V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	3,523In Stock	Cut Tape HK$12.91 HK$8.12 HK$6.07 HK$5.40 Reel HK$3.79 View HK$4.23 HK$3.52 HK$3.31 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V tp 70V BI SM15T12CAY STMicroelectronics 1: HK$15.54 3,309In Stock	Mfr. Part No. SM15T12CAY Mouser Part No 511-SM15T12CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V tp 70V BI Learn More about STMicroelectronics stmicro sm15ty transil	Datasheet	3,309In Stock	Cut Tape HK$15.54 HK$9.95 HK$7.42 HK$6.63 Reel HK$4.41 View HK$5.24 HK$4.75 HK$3.84 HK$3.83 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500W 15V Bidirect SM15T15CA STMicroelectronics 1: HK$14.30 4,798In Stock 7,500Expected 25/1/2027	Mfr. Part No. SM15T15CA Mouser Part No 511-SM15T15CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 15V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	4,798In Stock 7,500Expected 25/1/2027	Cut Tape HK$14.30 HK$9.04 HK$6.77 HK$6.03 Reel HK$3.65 View HK$4.74 HK$4.22 HK$3.39 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Uni SM15T18AY STMicroelectronics 1: HK$14.96 3,620In Stock	Mfr. Part No. SM15T18AY Mouser Part No 511-SM15T18AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Uni Learn More about STMicroelectronics stmicro sm15ty transil	Datasheet	3,620In Stock	Cut Tape HK$14.96 HK$9.54 HK$7.12 HK$6.35 Reel HK$4.10 View HK$5.01 HK$4.50 HK$3.66 HK$3.63 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500W 220V Bidirect SM15T220CA STMicroelectronics 1: HK$14.55 3,187In Stock	Mfr. Part No. SM15T220CA Mouser Part No 511-SM15T220CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 220V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	3,187In Stock	Cut Tape HK$14.55 HK$9.29 HK$6.92 HK$6.17 Reel HK$3.85 View HK$4.86 HK$4.50 HK$3.52 HK$3.49 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500W 22V Unidirect SM15T22A STMicroelectronics 1: HK$13.48 6,406In Stock	Mfr. Part No. SM15T22A Mouser Part No 511-SM15T22A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 22V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	6,406In Stock	Cut Tape HK$13.48 HK$8.55 HK$6.38 HK$5.68 Reel HK$3.72 View HK$4.46 HK$4.18 HK$3.30 HK$3.15 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Uni SM15T27AY STMicroelectronics 1: HK$14.96 4,456In Stock	Mfr. Part No. SM15T27AY Mouser Part No 511-SM15T27AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Uni Learn More about STMicroelectronics stmicro sm15ty transil	Datasheet	4,456In Stock	Cut Tape HK$14.96 HK$9.54 HK$7.12 HK$6.35 Reel HK$4.18 View HK$5.01 HK$4.59 HK$3.66 HK$3.64 MouseReel Available	Min.: 1 Mult.: 1 : 2,500

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