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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 600W 4kW Transil SMA 5V to 70V Bi SMA6T18CAY STMicroelectronics 1: HK$11.43 1,323In Stock	Mfr. Part No. SMA6T18CAY Mouser Part No 511-SMA6T18CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 4kW Transil SMA 5V to 70V Bi Learn More about STMicroelectronics stmicro sma6ty automotive transil	Datasheet	1,323In Stock	Cut Tape HK$11.43 HK$6.66 HK$5.33 HK$4.49 Reel HK$2.64 View HK$3.55 HK$3.27 HK$3.15 HK$2.47 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 600W 4kW Transil SMA 5V to 70V Uni SMA6T28AY STMicroelectronics 1: HK$15.86 2,030In Stock	Mfr. Part No. SMA6T28AY Mouser Part No 511-SMA6T28AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 4kW Transil SMA 5V to 70V Uni Learn More about STMicroelectronics stmicro sma6ty automotive transil	Datasheet	2,030In Stock	Cut Tape HK$15.86 HK$10.11 HK$7.58 HK$6.77 Reel HK$4.09 View HK$5.35 HK$4.88 HK$4.66 HK$3.70 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 600W 4kW Transil SMA 5V to 70V Uni SMA6T30AY STMicroelectronics 1: HK$15.86 1,436In Stock	Mfr. Part No. SMA6T30AY Mouser Part No 511-SMA6T30AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 4kW Transil SMA 5V to 70V Uni Learn More about STMicroelectronics stmicro sma6ty automotive transil	Datasheet	1,436In Stock	Cut Tape HK$15.86 HK$10.11 HK$7.58 HK$6.77 Reel HK$4.09 View HK$5.35 HK$5.01 HK$4.89 HK$3.70 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 600W 4kW Transil SMA 5V to 70V Bi SMA6T68CAY STMicroelectronics 1: HK$11.43 3,412In Stock	Mfr. Part No. SMA6T68CAY Mouser Part No 511-SMA6T68CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 4kW Transil SMA 5V to 70V Bi Learn More about STMicroelectronics stmicro sma6ty automotive transil	Datasheet	3,412In Stock	Cut Tape HK$11.43 HK$7.17 HK$5.33 HK$4.73 Reel HK$2.75 View HK$3.69 HK$3.30 HK$3.15 HK$2.47 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 600W 4kW Transil SMA 5V to 70V Bi SMA6T6V7CAY STMicroelectronics 1: HK$11.43 3,331In Stock	Mfr. Part No. SMA6T6V7CAY Mouser Part No 511-SMA6T6V7CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 4kW Transil SMA 5V to 70V Bi Learn More about STMicroelectronics stmicro sma6ty automotive transil	Datasheet	3,331In Stock	Cut Tape HK$11.43 HK$7.17 HK$5.33 HK$4.73 Reel HK$2.75 View HK$3.69 HK$3.30 HK$3.15 HK$2.47 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400W 12V Bidirect SMAJ12CA-TR STMicroelectronics 1: HK$5.51 3,549In Stock 10,000Expected 14/12/2026	Mfr. Part No. SMAJ12CA-TR Mouser Part No 511-SMAJ12CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400W 12V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	3,549In Stock 10,000Expected 14/12/2026	Cut Tape HK$5.51 HK$2.50 HK$2.19 HK$1.66 Reel HK$1.18 View HK$1.55 HK$1.04 HK$0.986 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400W 130V Bidirect SMAJ130CA-TR STMicroelectronics 1: HK$6.17 8,672In Stock	Mfr. Part No. SMAJ130CA-TR Mouser Part No 511-SMAJ130CA-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400W 130V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	8,672In Stock	Cut Tape HK$6.17 HK$2.80 HK$2.47 HK$1.87 Reel HK$1.34 View HK$1.77 HK$1.64 HK$1.18 HK$1.12 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400W 170V Bidirect SMAJ170CA-TR STMicroelectronics 1: HK$6.00 9,966In Stock	Mfr. Part No. SMAJ170CA-TR Mouser Part No 511-SMAJ170CA-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400W 170V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	9,966In Stock	Cut Tape HK$6.00 HK$2.70 HK$2.38 HK$1.80 Reel HK$1.28 View HK$1.67 HK$1.51 HK$1.13 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400 W, 20 V TVS SMAJ20A-TR STMicroelectronics 1: HK$6.08 3,674In Stock	Mfr. Part No. SMAJ20A-TR Mouser Part No 511-SMAJ20A-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W, 20 V TVS Learn More about STMicroelectronics stm standard products	Datasheet	3,674In Stock	Cut Tape HK$6.08 HK$2.76 HK$2.43 HK$1.85 Reel HK$1.32 View HK$1.76 HK$1.16 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400W 26V Unidirect SMAJ26A-TR STMicroelectronics 1: HK$4.69 6,533In Stock	Mfr. Part No. SMAJ26A-TR Mouser Part No 511-SMAJ26A-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400W 26V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	6,533In Stock	Cut Tape HK$4.69 HK$2.44 HK$2.08 HK$1.62 Reel HK$1.15 View HK$1.50 HK$1.42 HK$1.00 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400W 28V Unidirect SMAJ28A-TR STMicroelectronics 1: HK$5.75 6,028In Stock 10,000Expected 23/11/2026	Mfr. Part No. SMAJ28A-TR Mouser Part No 511-SMAJ28A-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400W 28V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	6,028In Stock 10,000Expected 23/11/2026	Cut Tape HK$5.75 HK$2.59 HK$2.28 HK$1.73 Reel HK$1.16 View HK$1.64 HK$1.52 HK$1.02 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400W 40V Bidirect SMAJ40CA-TR STMicroelectronics 1: HK$6.00 8,926In Stock 15,000Expected 12/12/2026	Mfr. Part No. SMAJ40CA-TR Mouser Part No 511-SMAJ40CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400W 40V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	8,926In Stock 15,000Expected 12/12/2026	Cut Tape HK$6.00 HK$2.70 HK$2.38 HK$1.80 Reel HK$1.22 View HK$1.71 HK$1.58 HK$1.13 HK$1.09 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400W 48V Bidirect SMAJ48CA-TR STMicroelectronics 1: HK$5.51 8,076In Stock	Mfr. Part No. SMAJ48CA-TR Mouser Part No 511-SMAJ48CA-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400W 48V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	8,076In Stock	Cut Tape HK$5.51 HK$2.50 HK$2.19 HK$1.66 Reel HK$1.18 View HK$1.55 HK$0.978 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400W 58V Unidirect SMAJ58A-TR STMicroelectronics 1: HK$5.34 7,410In Stock 25,000Expected 4/1/2027	Mfr. Part No. SMAJ58A-TR Mouser Part No 511-SMAJ58A-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400W 58V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	7,410In Stock 25,000Expected 4/1/2027	Cut Tape HK$5.34 HK$2.40 HK$2.10 HK$1.59 Reel HK$1.12 View HK$1.57 HK$0.978 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400W 6.5V Unidirect SMAJ6.5A-TR STMicroelectronics 1: HK$5.43 7,908In Stock	Mfr. Part No. SMAJ6.5A-TR Mouser Part No 511-SMAJ6.5A-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400W 6.5V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	7,908In Stock	Cut Tape HK$5.43 HK$2.44 HK$2.15 HK$1.62 Reel HK$1.15 View HK$1.51 HK$1.00 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400W 8.5V Bidirect SMAJ8.5CA-TR STMicroelectronics 1: HK$5.92 8,558In Stock	Mfr. Part No. SMAJ8.5CA-TR Mouser Part No 511-SMAJ8.5CA-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400W 8.5V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	8,558In Stock	Cut Tape HK$5.92 HK$2.66 HK$2.32 HK$1.78 Reel HK$1.22 View HK$1.59 HK$1.46 HK$1.07 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes Transil SMBJ10A-TR STMicroelectronics 1: HK$5.43 2,589In Stock 7,500Expected 1/12/2026	Mfr. Part No. SMBJ10A-TR Mouser Part No 511-SMBJ10A-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes Transil Learn More about STMicroelectronics stm 600w tvs diode	Datasheet	2,589In Stock 7,500Expected 1/12/2026	Cut Tape HK$5.43 HK$2.46 HK$2.16 HK$1.64 Reel HK$1.27 View HK$1.10 HK$1.09 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 13V Unidirect SMBJ13A-TR STMicroelectronics 1: HK$6.00 4,378In Stock	Mfr. Part No. SMBJ13A-TR Mouser Part No 511-SMBJ13A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 13V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	4,378In Stock	Cut Tape HK$6.00 HK$2.70 HK$2.38 HK$1.80 Reel HK$1.39 View HK$1.18 HK$1.05 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 13V Bidirect SMBJ13CA-TR STMicroelectronics 1: HK$6.00 7,232In Stock	Mfr. Part No. SMBJ13CA-TR Mouser Part No 511-SMBJ13CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 13V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	7,232In Stock	Cut Tape HK$6.00 HK$2.70 HK$2.38 HK$1.80 Reel HK$1.39 View HK$1.66 HK$1.33 HK$1.09 HK$1.07 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 15V Unidirect SMBJ15A-TR STMicroelectronics 1: HK$5.75 386In Stock 32,500On Order	Mfr. Part No. SMBJ15A-TR Mouser Part No 511-SMBJ15A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 15V Unidirect Learn More about STMicroelectronics stm 600w tvs diode	Datasheet	386In Stock 32,500On Order On Order Ship Dates Mfr. No: SMBJ15A-TR Stock: 386 Can Dispatch Immediately On Order: 12,500 Expected 9/7/2027 20,000 Expected 15/11/2027 Factory Lead Time: 16 Weeks	Cut Tape HK$5.75 HK$2.61 HK$2.29 HK$1.73 Reel HK$1.20 View HK$1.62 HK$1.17 HK$1.05 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 16V Unidirect SMBJ16A-TR STMicroelectronics 1: HK$5.43 8,436In Stock	Mfr. Part No. SMBJ16A-TR Mouser Part No 511-SMBJ16A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 16V Unidirect Learn More about STMicroelectronics stm 600w tvs diode	Datasheet	8,436In Stock	Cut Tape HK$5.43 HK$2.44 HK$2.15 HK$1.63 Reel HK$1.17 View HK$1.52 HK$1.09 HK$1.02 HK$1.00 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 18V Unidirect SMBJ18A-TR STMicroelectronics 1: HK$5.75 9,241In Stock	Mfr. Part No. SMBJ18A-TR Mouser Part No 511-SMBJ18A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 18V Unidirect Learn More about STMicroelectronics stm 600w tvs diode	Datasheet	9,241In Stock	Cut Tape HK$5.75 HK$2.61 HK$2.29 HK$1.73 Reel HK$1.30 View HK$1.18 HK$1.09 HK$1.06 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes Transil SMBJ20A-TR STMicroelectronics 1: HK$6.00 6,313In Stock	Mfr. Part No. SMBJ20A-TR Mouser Part No 511-SMBJ20A-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes Transil Learn More about STMicroelectronics stm 600w tvs diode	Datasheet	6,313In Stock	Cut Tape HK$6.00 HK$3.20 HK$2.52 HK$1.95 Reel HK$1.61 View HK$1.86 HK$1.48 HK$1.40 HK$1.36 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 24V Unidirect SMBJ24A-TR STMicroelectronics 1: HK$5.59 6,390In Stock 7,500Expected 30/11/2026	Mfr. Part No. SMBJ24A-TR Mouser Part No 511-SMBJ24A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 24V Unidirect Learn More about STMicroelectronics stm 600w tvs diode	Datasheet	6,390In Stock 7,500Expected 30/11/2026	Cut Tape HK$5.59 HK$2.53 HK$2.23 HK$1.69 Reel HK$1.32 View HK$1.57 HK$1.14 HK$1.04 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 600W 24V Bidirect SMBJ24CA-TR STMicroelectronics 1: HK$6.00 7,925In Stock	Mfr. Part No. SMBJ24CA-TR Mouser Part No 511-SMBJ24CA	STMicroelectronics	ESD Protection Diodes / TVS Diodes 600W 24V Bidirect Learn More about STMicroelectronics stm standard products	Datasheet	7,925In Stock	Cut Tape HK$6.00 HK$2.70 HK$2.38 HK$1.80 Reel HK$1.41 View HK$1.74 HK$1.22 HK$1.17 HK$1.08 MouseReel Available	Min.: 1 Mult.: 1 : 2,500

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