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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 HJ Temp Transil SMA6J5.0A-TR STMicroelectronics 1: HK$5.43 39,892Expected 27/11/2026	Mfr. Part No. SMA6J5.0A-TR Mouser Part No 511-SMA6J5.0A-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes HJ Temp Transil Learn More about STMicroelectronics stm standard products	Datasheet	39,892Expected 27/11/2026	Cut Tape HK$5.43 HK$2.42 HK$2.12 HK$1.60 Reel HK$1.13 View HK$1.55 HK$1.44 HK$0.986 HK$0.962 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 600W 130V Unidirect SMBJ130A-TR STMicroelectronics 1: HK$6.33 22,500On Order	Mfr. Part No. SMBJ130A-TR Mouser Part No 511-SMBJ130A-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 130V Unidirect Learn More about STMicroelectronics stm 600w tvs diode	Datasheet	22,500On Order On Order Ship Dates Mfr. No: SMBJ130A-TR Stock: 0 On Order: 15,000 Expected 19/2/2027 7,500 Expected 9/4/2027 Factory Lead Time: 16 Weeks	Cut Tape HK$6.33 HK$2.86 HK$2.52 HK$1.91 Reel HK$1.50 View HK$1.85 HK$1.30 HK$1.28 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 170V Bidirect SMBJ170CA-TR STMicroelectronics 1: HK$6.66 12,500Expected 15/2/2027	Mfr. Part No. SMBJ170CA-TR Mouser Part No 511-SMBJ170CA-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 170V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	12,500Expected 15/2/2027	Cut Tape HK$6.66 HK$3.33 HK$2.52 HK$2.07 Reel HK$1.63 View HK$1.97 HK$1.45 HK$1.35 HK$1.30 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 30V Bidirect SMBJ30CA-TR STMicroelectronics 1: HK$6.00 15,478On Order	Mfr. Part No. SMBJ30CA-TR Mouser Part No 511-SMBJ30CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 30V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	15,478On Order On Order Ship Dates Mfr. No: SMBJ30CA-TR Stock: 0 On Order: 7,978 Expected 16/11/2026 7,500 Expected 13/1/2027 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 33V Unidirect SMBJ33A-TR STMicroelectronics 1: HK$5.75 16,951On Order	Mfr. Part No. SMBJ33A-TR Mouser Part No 511-SMBJ33A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 33V Unidirect Learn More about STMicroelectronics stm 600w tvs diode	Datasheet	16,951On Order On Order Ship Dates Mfr. No: SMBJ33A-TR Stock: 0 On Order: 6,951 Expected 9/11/2026 10,000 Expected 7/12/2026 Factory Lead Time: 16 Weeks	Cut Tape HK$5.75 HK$2.59 HK$2.28 HK$1.72 Reel HK$1.34 View HK$1.65 HK$1.16 HK$1.13 HK$1.04 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 3000W Transil 16V 0.2uA 15kV 8kV BI SMC30J16CA STMicroelectronics 1: HK$18.33 2,475Expected 14/12/2026	Mfr. Part No. SMC30J16CA Mouser Part No 511-SMC30J16CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 3000W Transil 16V 0.2uA 15kV 8kV BI Learn More about STMicroelectronics stm smc30j tvs diodes	Datasheet	2,475Expected 14/12/2026	Cut Tape HK$18.33 HK$11.75 HK$9.37 HK$7.81 Reel HK$5.13 View HK$6.27 HK$5.60 HK$4.97 HK$4.81 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 3000W Transil 30V 0.2uA 15kV 8kV BI SMC30J28CA STMicroelectronics 1: HK$17.43 20,000Expected 20/1/2027	Mfr. Part No. SMC30J28CA Mouser Part No 511-SMC30J28CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 3000W Transil 30V 0.2uA 15kV 8kV BI Learn More about STMicroelectronics stm smc30j tvs diodes	Datasheet	20,000Expected 20/1/2027	Cut Tape HK$17.43 HK$10.36 HK$8.17 HK$7.11 Reel HK$4.89 View HK$5.79 HK$5.34 HK$4.62 HK$4.32 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 3000W Transil 30V 0.2uA 15kV 8kV BI SMC30J30CA STMicroelectronics 1: HK$17.26 5,000Expected 12/11/2026	Mfr. Part No. SMC30J30CA Mouser Part No 511-SMC30J30CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 3000W Transil 30V 0.2uA 15kV 8kV BI Learn More about STMicroelectronics stm smc30j tvs diodes	Datasheet	5,000Expected 12/11/2026	Cut Tape HK$17.26 HK$11.01 HK$8.38 HK$7.43 Reel HK$4.87 View HK$5.89 HK$5.34 HK$4.36 HK$4.32 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 5000 W, 64 V TVS SMC50J64CA STMicroelectronics 1: HK$23.84 2,500Expected 30/11/2026	Mfr. Part No. SMC50J64CA Mouser Part No 511-SMC50J64CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 5000 W, 64 V TVS Learn More about STMicroelectronics stm smc50j tvs	Datasheet	2,500Expected 30/11/2026	Cut Tape HK$23.84 HK$15.37 HK$11.75 HK$10.60 Reel HK$7.10 View HK$8.55 HK$7.60 HK$6.45 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Board Mount Surge Protectors 200V 50uA Bidirect SMP100LC-200 STMicroelectronics 1: HK$10.19 5,000Expected 28/12/2026	Mfr. Part No. SMP100LC-200 Mouser Part No 511-SMP100LC-200	STMicroelectronics	Board Mount Surge Protectors 200V 50uA Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	5,000Expected 28/12/2026	Cut Tape HK$10.19 HK$6.39 HK$4.20 HK$3.18 Reel HK$2.28 View HK$2.81 HK$2.20 HK$2.13 HK$2.06 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Board Mount Surge Protectors 100V 50uA Bidirect SMTPA100 STMicroelectronics 1: HK$7.56 10,000Expected 6/1/2027	Mfr. Part No. SMTPA100 Mouser Part No 511-SMTPA100	STMicroelectronics	Board Mount Surge Protectors 100V 50uA Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	10,000Expected 6/1/2027	Cut Tape HK$7.56 HK$4.69 HK$3.04 HK$2.33 Reel HK$1.90 View HK$2.10 HK$1.66 HK$1.52 HK$1.46 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Triacs Hi temp 12A Triacs T1235H-6G-TR STMicroelectronics 1: HK$20.71 16,000On Order	Mfr. Part No. T1235H-6G-TR Mouser Part No 511-T1235H-6G-TR	STMicroelectronics	Triacs Hi temp 12A Triacs Learn More about STMicroelectronics stm h series triacs	Datasheet	16,000On Order On Order Ship Dates Mfr. No: T1235H-6G-TR Stock: 0 On Order: 11,000 Expected 28/12/2026 5,000 Expected 25/1/2027 Factory Lead Time: 15 Weeks	Cut Tape HK$20.71 HK$13.32 HK$9.12 HK$7.67 Reel HK$6.51 View HK$6.42 HK$6.17 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Triacs 8A Snubberless Triacs in D2PAK T850-6G STMicroelectronics 1: HK$17.34 17,975Expected 13/1/2027	Mfr. Part No. T850-6G Mouser Part No 511-T850-6G	STMicroelectronics	Triacs 8A Snubberless Triacs in D2PAK	Datasheet	17,975Expected 13/1/2027	HK$17.34 HK$8.63 HK$7.09 HK$5.66 View HK$5.10 HK$4.50 HK$4.23	Min.: 1 Mult.: 1
SCRs 1200 V, 30 A Automotive Grade AEC-Q101 SCR Thyristor TN3050H-12GY-TR STMicroelectronics 1: HK$43.40 996In Stock 1,000On Order	Mfr. Part No. TN3050H-12GY-TR Mouser Part No 511-TN3050H-12GY-TR	STMicroelectronics	SCRs 1200 V, 30 A Automotive Grade AEC-Q101 SCR Thyristor Learn More about STMicroelectronics tn3050h thyristors	Datasheet	996In Stock 1,000On Order	Cut Tape HK$43.40 HK$29.51 HK$21.87 HK$20.06 Reel HK$18.74 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
SCRs 60 A 1200 V standard SCR Thyristor in TOP3 Ins. TN6050-12PI STMicroelectronics 1: HK$50.80 600Expected 30/11/2026	Mfr. Part No. TN6050-12PI Mouser Part No 511-TN6050-12PI	STMicroelectronics	SCRs 60 A 1200 V standard SCR Thyristor in TOP3 Ins. Learn More about STMicroelectronics stm standard thyristors	Datasheet	600Expected 30/11/2026	HK$50.80 HK$28.69 HK$23.84 HK$20.22 HK$20.06	Min.: 1 Mult.: 1
Triacs 40 A 1200 Volt TPDV1240RG STMicroelectronics 1: HK$118.78 1,800Expected 17/2/2027	Mfr. Part No. TPDV1240RG Mouser Part No 511-TPDV1240	STMicroelectronics	Triacs 40 A 1200 Volt Learn More about STMicroelectronics stm standard products	Datasheet	1,800Expected 17/2/2027	HK$118.78 HK$87.87 HK$73.24 HK$65.27 HK$60.91	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes EMI Filter/Line Term USBUF01W6 STMicroelectronics 1: HK$2.79 31,277On Order	Mfr. Part No. USBUF01W6 Mouser Part No 511-USBUF01W6	STMicroelectronics	ESD Protection Diodes / TVS Diodes EMI Filter/Line Term Learn More about STMicroelectronics stm standard products	Datasheet	31,277On Order On Order Ship Dates Mfr. No: USBUF01W6 Stock: 0 On Order: 7,277 Expected 7/12/2026 24,000 Expected 22/3/2027 Factory Lead Time: 21 Weeks	Cut Tape HK$2.79 HK$1.95 HK$1.69 HK$1.59 Reel HK$1.35 View HK$1.50 HK$1.27 HK$1.13 HK$1.10 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes EMI FILTER IPAD USBUF02W6 STMicroelectronics 1: HK$2.96 23,970Expected 14/12/2026	Mfr. Part No. USBUF02W6 Mouser Part No 511-USBUF02W6	STMicroelectronics	ESD Protection Diodes / TVS Diodes EMI FILTER IPAD Learn More about STMicroelectronics stm standard products	Datasheet	23,970Expected 14/12/2026	Cut Tape HK$2.96 HK$2.06 HK$1.79 HK$1.69 Reel HK$1.35 View HK$1.59 HK$1.27 HK$1.13 HK$1.10 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Diacs 32 Volt Trigger TMMDB3TG STMicroelectronics 1: HK$3.37 10,000Expected 24/2/2027	Mfr. Part No. TMMDB3TG Mouser Part No 511-TMMDB3TG	STMicroelectronics	Diacs 32 Volt Trigger Learn More about STMicroelectronics stm standard products	Datasheet	10,000Expected 24/2/2027	Cut Tape HK$3.37 HK$2.12 HK$1.53 HK$1.21 Reel HK$0.945 View HK$1.09 HK$0.814 HK$0.732 HK$0.666 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Triacs 10 Amp 800 Volt BTA10-800CWRG STMicroelectronics 1: HK$18.41 160In Stock	Mfr. Part No. BTA10-800CWRG Mouser Part No 511-BTA10-800CW	STMicroelectronics	Triacs 10 Amp 800 Volt Learn More about STMicroelectronics stm standard products	Datasheet	160In Stock	HK$18.41 HK$9.54 HK$7.79 HK$6.30 View HK$5.74 HK$5.06 HK$4.84 HK$4.44 Quote	Min.: 1 Mult.: 1
Triacs 6A TRIACS BTB06-800SWRG STMicroelectronics 1: HK$15.45 1,269In Stock	Mfr. Part No. BTB06-800SWRG Mouser Part No 511-BTB06-800SWRG	STMicroelectronics	Triacs 6A TRIACS Learn More about STMicroelectronics stm standard products	Datasheet	1,269In Stock	HK$15.45 HK$9.78 HK$6.48 HK$5.09 View HK$4.34 HK$3.35 HK$3.27	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Uni SM6T22AY STMicroelectronics 1: HK$15.86 15In Stock	Mfr. Part No. SM6T22AY Mouser Part No 511-SM6T22AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600 W 4kW Transil 6V to 70V Uni Learn More about STMicroelectronics stmicro sm6ty 600w transil	Datasheet	15In Stock	Cut Tape HK$15.86 HK$10.11 HK$7.58 HK$6.52 Reel HK$4.39 View HK$5.25 HK$4.88 HK$3.93 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes HJ Temp Transil SMA6J8.5CA-TR STMicroelectronics 1: HK$9.70 41In Stock	Mfr. Part No. SMA6J8.5CA-TR Mouser Part No 511-SMA6J8.5CA-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes HJ Temp Transil Learn More about STMicroelectronics stm standard products	Datasheet	41In Stock	Cut Tape HK$9.70 HK$4.48 HK$3.96 HK$3.06 Reel HK$2.12 View HK$2.91 HK$2.79 HK$1.89 HK$1.78 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 600W 4kW Transil SMA 5V to 70V Uni SMA6T10AY STMicroelectronics 1: HK$10.85 86In Stock	Mfr. Part No. SMA6T10AY Mouser Part No 511-SMA6T10AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 4kW Transil SMA 5V to 70V Uni Learn More about STMicroelectronics stmicro sma6ty automotive transil	Datasheet	86In Stock	Cut Tape HK$10.85 HK$6.83 HK$4.47 HK$3.45 Reel HK$2.47 View HK$2.93 HK$2.79 HK$2.40 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400W 154V Unidirect SMAJ154A-TR STMicroelectronics 1: HK$7.48 2,263In Stock	Mfr. Part No. SMAJ154A-TR Mouser Part No 511-SMAJ154A-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400W 154V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	2,263In Stock	Cut Tape HK$7.48 HK$3.44 HK$3.03 HK$2.32 Reel HK$1.69 View HK$2.28 HK$2.15 HK$1.49 MouseReel Available	Min.: 1 Mult.: 1 : 5,000

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