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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 26.5 V TVS for LIN bus in SOT323-3L ESDLIN03-1BWY STMicroelectronics 1: HK$4.19 11,835In Stock	Mfr. Part No. ESDLIN03-1BWY Mouser Part No 511-ESDLIN03-1BWY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 26.5 V TVS for LIN bus in SOT323-3L Learn More about STMicroelectronics stm esdlin03 1bwy suppressor	Datasheet	11,835In Stock	Cut Tape HK$4.19 HK$2.01 HK$1.62 HK$1.23 Reel HK$0.904 View HK$1.14 HK$0.88 HK$0.649 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes Ultra Low clamping single line bidirectional ESD protection ESDZV5-1BF4 STMicroelectronics 1: HK$1.07 91,793In Stock	Mfr. Part No. ESDZV5-1BF4 Mouser Part No 511-ESDZV5-1BF4	STMicroelectronics	ESD Protection Diodes / TVS Diodes Ultra Low clamping single line bidirectional ESD protection Learn More about STMicroelectronics stm esdzv5 1bf4 tvs diode	Datasheet	91,793In Stock	Cut Tape HK$1.07 HK$0.518 HK$0.353 HK$0.296 View Reel HK$0.14 HK$0.255 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 ESDZV5-1BU2 STMicroelectronics 1: HK$1.56 13,950In Stock	Mfr. Part No. ESDZV5-1BU2 Mouser Part No 511-ESDZV5-1BU2	STMicroelectronics	ESD Protection Diodes / TVS Diodes Ultra Low clamping single line bidirectional ESD protection	Datasheet	13,950In Stock	Cut Tape HK$1.56 HK$0.732 HK$0.551 HK$0.395 View Reel HK$0.189 HK$0.345 HK$0.296 HK$0.271 HK$0.206 HK$0.189 MouseReel Available	Min.: 1 Mult.: 1 : 15,000
ESD Protection Diodes / TVS Diodes Ultra Low clamping single line bidirectional ESD protection in extra small 01005 ESDZV5-1BV2 STMicroelectronics 1: HK$1.40 21,457In Stock 60,000Expected 12/10/2026	Mfr. Part No. ESDZV5-1BV2 Mouser Part No 511-ESDZV5-1BV2	STMicroelectronics	ESD Protection Diodes / TVS Diodes Ultra Low clamping single line bidirectional ESD protection in extra small 01005	Datasheet	21,457In Stock 60,000Expected 12/10/2026	Cut Tape HK$1.40 HK$0.625 HK$0.485 HK$0.37 View Reel HK$0.189 HK$0.296 HK$0.255 HK$0.238 HK$0.189 HK$0.189	Min.: 1 Mult.: 1 : 20,000
ESD Protection Diodes / TVS Diodes Ultra Low clamping single line bidirectional ESD protection ESDZV5H-1BU2 STMicroelectronics 1: HK$1.56 77,371In Stock 165,000On Order	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	77,371In Stock 165,000On Order On Order Ship Dates Mfr. No: ESDZV5H-1BU2 Stock: 77,371 Can Dispatch Immediately On Order: 60,000 Expected 15/10/2026 105,000 Expected 11/1/2027 Factory Lead Time: 15 Weeks	Cut Tape HK$1.56 HK$0.732 HK$0.559 HK$0.419 View Reel HK$0.181 HK$0.329 HK$0.288 HK$0.271 HK$0.23 HK$0.181 MouseReel Available	Min.: 1 Mult.: 1 : 15,000
ESD Protection Diodes / TVS Diodes Automotive 2-line ESD protection for high speed lines HSP051-2W3Y STMicroelectronics 1: HK$4.77 4,440In Stock	Mfr. Part No. HSP051-2W3Y Mouser Part No 511-HSP051-2W3Y	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 2-line ESD protection for high speed lines Learn More about STMicroelectronics stm hsp051 2w3y esd array	Datasheet	4,440In Stock	Cut Tape HK$4.77 HK$2.27 HK$1.87 HK$1.50 Reel HK$1.06 View HK$1.26 HK$0.962 HK$0.904 HK$0.83	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes Automotive 24 V TVS for load dump in D2PAK LDP01-28AY STMicroelectronics 1: HK$33.95 621In Stock	Mfr. Part No. LDP01-28AY Mouser Part No 511-LDP01-28AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 24 V TVS for load dump in D2PAK	Datasheet	621In Stock	Cut Tape HK$33.95 HK$19.48 HK$16.52 HK$13.89 Reel HK$11.67 HK$11.34 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$32.80 523In Stock 9,000On Order	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	523In Stock 9,000On Order On Order Ship Dates Mfr. No: LDP01-35AY Stock: 523 Can Dispatch Immediately On Order: 3,000 Expected 8/10/2026 6,000 Expected 7/12/2026 Factory Lead Time: 45 Weeks	Cut Tape HK$32.80 HK$17.76 HK$16.03 HK$13.32 Reel HK$12.08 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
ESD Protection Diodes / TVS Diodes Automotive 36 V TVS for load dump in D2PAK LDP01-42AY STMicroelectronics 1: HK$33.13 653In Stock	Mfr. Part No. LDP01-42AY Mouser Part No 511-LDP01-42AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 36 V TVS for load dump in D2PAK	Datasheet	653In Stock	Cut Tape HK$33.13 HK$21.70 HK$17.26 HK$15.62 Reel HK$11.26 View HK$12.91 HK$10.69 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
ESD Protection Diodes / TVS Diodes 4kV 2000W Ppp Lightning Protection LNBTVS4-222S STMicroelectronics 1: HK$15.21 1,564In 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	1,564In Stock	Cut Tape HK$15.21 HK$9.70 HK$7.24 HK$6.38 Reel HK$4.07 View HK$5.01 HK$4.59 HK$3.53 HK$3.42 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
SCRs THYRISTOR P0102MN 5AA4 STMicroelectronics 1: HK$5.18 8,657In Stock	Mfr. Part No. P0102MN 5AA4 Mouser Part No 511-P0102MN5AA4	STMicroelectronics	SCRs THYRISTOR Learn More about STMicroelectronics stm standard products	Datasheet	8,657In Stock	Cut Tape HK$5.18 HK$3.21 HK$2.06 HK$1.55 Reel HK$1.34 View HK$1.16 HK$1.00 HK$0.921 HK$0.863 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
SCRs 0.8A SCRS P0111MN 5AA4 STMicroelectronics 1: HK$4.69 5,233In Stock	Mfr. Part No. P0111MN 5AA4 Mouser Part No 511-P0111MN-5AA4	STMicroelectronics	SCRs 0.8A SCRS Learn More about STMicroelectronics stm standard products	Datasheet	5,233In Stock	Cut Tape HK$4.69 HK$2.89 HK$1.84 HK$1.38 Reel HK$1.23 View HK$1.04 HK$0.929 HK$0.888 HK$0.806 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Board Mount Surge Protectors Dual current limited over Vltg PCLT-2AT4-TR STMicroelectronics 1: HK$40.11 93In Stock	Mfr. Part No. PCLT-2AT4-TR Mouser Part No 511-PCLT-2AT4-TR	STMicroelectronics	Board Mount Surge Protectors Dual current limited over Vltg	Datasheet	93In Stock	Cut Tape HK$40.11 HK$25.98 HK$25.65 HK$20.30 View Reel HK$12.00 HK$18.66 HK$18.00 HK$15.45 HK$13.97 HK$12.00 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500W 100V Unidirect SM15T100A STMicroelectronics 1: HK$13.15 2,869In Stock 2,500Expected 25/11/2026	Mfr. Part No. SM15T100A Mouser Part No 511-SM15T100A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 100V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	2,869In Stock 2,500Expected 25/11/2026	Cut Tape HK$13.15 HK$6.63 HK$5.51 HK$4.32 Reel HK$3.11 View HK$4.11 HK$2.98 HK$2.93 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500W 12V Bidirect SM15T12CA STMicroelectronics 1: HK$13.15 2,954In Stock	Mfr. Part No. SM15T12CA Mouser Part No 511-SM15T12CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 12V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	2,954In Stock	Cut Tape HK$13.15 HK$6.65 HK$5.52 HK$4.34 Reel HK$3.43 View HK$4.13 HK$2.99 HK$2.94 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500W 18V Unidirect SM15T18A STMicroelectronics 1: HK$12.08 3,380In Stock	Mfr. Part No. SM15T18A Mouser Part No 511-SM15T18A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 18V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	3,380In Stock	Cut Tape HK$12.08 HK$5.80 HK$5.03 HK$3.94 Reel HK$3.35 View HK$3.74 HK$2.90 HK$2.86 HK$2.79 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500W 18V Bidirect SM15T18CA STMicroelectronics 1: HK$13.07 2,185In Stock	Mfr. Part No. SM15T18CA Mouser Part No 511-SM15T18CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 18V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	2,185In Stock	Cut Tape HK$13.07 HK$6.62 HK$5.50 HK$4.32 Reel HK$3.22 View HK$4.10 HK$2.98 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500W 220V Bidirect SM15T220CA STMicroelectronics 1: HK$13.81 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$13.81 HK$6.92 HK$5.42 HK$4.35 Reel HK$3.38 View HK$4.16 HK$3.15 HK$3.10 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V tp 70V BI SM15T22CAY STMicroelectronics 1: HK$9.29 1,313In Stock	Mfr. Part No. SM15T22CAY Mouser Part No 511-SM15T22CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V tp 70V BI Learn More about STMicroelectronics stmicro sm15ty transil	Datasheet	1,313In 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 1500W 24V Bidirect SM15T24CA STMicroelectronics 1: HK$13.15 2,309In Stock	Mfr. Part No. SM15T24CA Mouser Part No 511-SM15T24CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 24V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	2,309In Stock	Cut Tape HK$13.15 HK$6.65 HK$5.52 HK$4.34 Reel HK$3.12 View HK$4.13 HK$2.99 HK$2.94 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V tp 70V BI SM15T24CAY STMicroelectronics 1: HK$9.12 2,937In Stock	Mfr. Part No. SM15T24CAY Mouser Part No 511-SM15T24CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V tp 70V BI Learn More about STMicroelectronics stmicro sm15ty transil	Datasheet	2,937In Stock	Cut Tape HK$9.12 HK$7.36 HK$6.12 HK$4.94 Reel HK$3.75 View HK$4.57 HK$3.49 HK$3.39 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500W 27V Unidirect SM15T27A STMicroelectronics 1: HK$12.58 3,052In Stock	Mfr. Part No. SM15T27A Mouser Part No 511-SM15T27A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 27V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	3,052In Stock	Cut Tape HK$12.58 HK$6.38 HK$5.27 HK$4.13 Reel HK$3.08 View HK$3.93 HK$2.84 HK$2.79 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500W 30V Unidirect SM15T30A STMicroelectronics 1: HK$13.15 1,943In Stock	Mfr. Part No. SM15T30A Mouser Part No 511-SM15T30A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 30V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	1,943In Stock	Cut Tape HK$13.15 HK$6.62 HK$5.50 HK$4.32 Reel HK$3.23 View HK$4.11 HK$2.98 HK$2.93 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500W 33V Bidirect SM15T33CA STMicroelectronics 1: HK$12.25 1,107In Stock 10,000On Order	Mfr. Part No. SM15T33CA Mouser Part No 511-SM15T33CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 33V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	1,107In Stock 10,000On Order On Order Ship Dates Mfr. No: SM15T33CA Stock: 1,107 Can Dispatch Immediately On Order: 2,500 Expected 1/1/2027 7,500 Expected 11/2/2027 Factory Lead Time: 16 Weeks	Cut Tape HK$12.25 HK$6.10 HK$5.12 HK$4.01 Reel HK$3.08 View HK$3.64 HK$2.95 HK$2.94 HK$2.90 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Uni SM15T36AY STMicroelectronics 1: HK$8.63 2,240In Stock 2,500Expected 15/10/2026	Mfr. Part No. SM15T36AY Mouser Part No 511-SM15T36AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500 W 10kW Transil 5.8V to 70V Uni Learn More about STMicroelectronics stmicro sm15ty transil	Datasheet	2,240In Stock 2,500Expected 15/10/2026	Cut Tape HK$8.63 HK$6.96 HK$5.83 HK$4.70 Reel HK$3.75 View HK$4.35 HK$3.39 HK$3.30 HK$3.27 MouseReel Available	Min.: 1 Mult.: 1 : 2,500

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