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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.
Triacs 16 Amp 800 Volt BTA16-800CWRG STMicroelectronics 1: HK$18.00 11,980On Order	Mfr. Part No. BTA16-800CWRG Mouser Part No 511-BTA16-800CW	STMicroelectronics	Triacs 16 Amp 800 Volt Learn More about STMicroelectronics stm standard products	Datasheet	11,980On Order On Order Ship Dates Mfr. No: BTA16-800CWRG Stock: 0 On Order: 4,980 Expected 12/11/2026 7,000 Expected 16/12/2026 Factory Lead Time: 15 Weeks	HK$18.00 HK$10.19 HK$7.69 HK$6.24 View HK$5.58 HK$5.22 HK$4.96	Min.: 1 Mult.: 1
Triacs 25 Amp 600 Volt BTA25-600B STMicroelectronics 1: HK$79.65 2,263On Order	Mfr. Part No. BTA25-600B Mouser Part No 511-BTA25-600B	STMicroelectronics	Triacs 25 Amp 600 Volt Learn More about STMicroelectronics stm standard products	Datasheet	2,263On Order On Order Ship Dates Mfr. No: BTA25-600B Stock: 0 On Order: 163 Expected 5/1/2027 2,100 Expected 24/2/2027 Factory Lead Time: 52 Weeks	HK$79.65 HK$54.58 HK$41.92	Min.: 1 Mult.: 1
Triacs 25 Amp 800 Volt BTA25-800BW STMicroelectronics 1: HK$82.94 366On Order	Mfr. Part No. BTA25-800BW Mouser Part No 511-BTA25-800BW	STMicroelectronics	Triacs 25 Amp 800 Volt Learn More about STMicroelectronics stm standard products	Datasheet	366On Order On Order Ship Dates Mfr. No: BTA25-800BW Stock: 0 On Order: 16 Expected 5/1/2027 350 Expected 27/1/2027 Factory Lead Time: 55 Weeks	HK$82.94 HK$51.87 HK$44.72 HK$41.92	Min.: 1 Mult.: 1
Triacs 25 Amp 600 Volt BTA26-600BWRG STMicroelectronics 1: HK$49.98 7,658On Order	Mfr. Part No. BTA26-600BWRG Mouser Part No 511-BTA26-600BW	STMicroelectronics	Triacs 25 Amp 600 Volt Learn More about STMicroelectronics stm standard products	Datasheet	7,658On Order On Order Ship Dates Mfr. No: BTA26-600BWRG Stock: 0 On Order: 1,658 Expected 27/1/2027 3,000 Expected 17/2/2027 3,000 Expected 5/4/2027 Factory Lead Time: 16 Weeks	HK$49.98 HK$29.67 HK$25.07 HK$23.26 View HK$15.86 HK$15.29	Min.: 1 Mult.: 1
Triacs 40 Amp 600 Volt BTA40-600B STMicroelectronics 1: HK$94.78 1,225Expected 4/5/2027	Mfr. Part No. BTA40-600B Mouser Part No 511-BTA40-600B	STMicroelectronics	Triacs 40 Amp 600 Volt Learn More about STMicroelectronics stm standard products	Datasheet	1,225Expected 4/5/2027	HK$94.78 HK$61.73 HK$50.88 HK$44.72	Min.: 1 Mult.: 1
Triacs 40 Amp 800 Volt BTA41-800BRG STMicroelectronics 1: HK$42.83 2,400On Order	Mfr. Part No. BTA41-800BRG Mouser Part No 511-BTA41-800B	STMicroelectronics	Triacs 40 Amp 800 Volt Learn More about STMicroelectronics stm standard products	Datasheet	2,400On Order On Order Ship Dates Mfr. No: BTA41-800BRG Stock: 0 On Order: 1,200 Expected 4/1/2027 1,200 Expected 19/1/2027 Factory Lead Time: 16 Weeks	HK$42.83 HK$33.95 HK$26.72 HK$16.77 HK$16.69	Min.: 1 Mult.: 1
Triacs 25 Amp 600 Volt BTB24-600BWRG STMicroelectronics 1: HK$21.62 1,994Expected 8/2/2027	Mfr. Part No. BTB24-600BWRG Mouser Part No 511-BTB24-600BW	STMicroelectronics	Triacs 25 Amp 600 Volt Learn More about STMicroelectronics stm standard products	Datasheet	1,994Expected 8/2/2027	HK$21.62 HK$10.69 HK$9.54 HK$7.65 View HK$7.04 HK$6.74	Min.: 1 Mult.: 1
Triacs 40 Amp 600 Volt BTB41-600BRG STMicroelectronics 1: HK$55.65 1,800Expected 27/4/2027	Mfr. Part No. BTB41-600BRG Mouser Part No 511-BTB41-600B	STMicroelectronics	Triacs 40 Amp 600 Volt	Datasheet	1,800Expected 27/4/2027	HK$55.65 HK$36.09 HK$29.92 HK$24.91 HK$23.51	Min.: 1 Mult.: 1
SCRs 50A STANDARD SCRs BTW67-1000 STMicroelectronics 1: HK$81.62 338On Order	Mfr. Part No. BTW67-1000 Mouser Part No 511-BTW67-1000	STMicroelectronics	SCRs 50A STANDARD SCRs Learn More about STMicroelectronics stm standard products	Datasheet	338On Order On Order Ship Dates Mfr. No: BTW67-1000 Stock: 0 On Order: 163 Expected 23/11/2026 175 Expected 18/12/2026 Factory Lead Time: 52 Weeks	HK$81.62 HK$49.07 HK$41.18 HK$38.14	Min.: 1 Mult.: 1
SCRs 50 Amp 1200 Volt BTW69-1200RG STMicroelectronics 1: HK$59.51 3,659Expected 30/11/2026	Mfr. Part No. BTW69-1200RG Mouser Part No 511-BTW69-1200	STMicroelectronics	SCRs 50 Amp 1200 Volt Learn More about STMicroelectronics stm standard products	Datasheet	3,659Expected 30/11/2026	HK$59.51 HK$34.44 HK$28.77 HK$25.15	Min.: 1 Mult.: 1
SCRs 1200V non-insulated SCR 50A 50mA BTW69-1200N STMicroelectronics 1: HK$69.62 575Expected 25/11/2026	Mfr. Part No. BTW69-1200N Mouser Part No 511-BTW69-1200N	STMicroelectronics	SCRs 1200V non-insulated SCR 50A 50mA Learn More about STMicroelectronics stm standard thyristors	Datasheet	575Expected 25/11/2026	HK$69.62 HK$40.44 HK$34.03 HK$32.55	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes Dual Transil Array Automotive ESD ESDA25LY STMicroelectronics 1: HK$3.53 56,998Expected 22/3/2027	Mfr. Part No. ESDA25LY Mouser Part No 511-ESDA25LY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Dual Transil Array Automotive ESD Learn More about STMicroelectronics stm standard products	Datasheet	56,998Expected 22/3/2027	Cut Tape HK$3.53 HK$1.55 HK$1.27 HK$1.00 Reel HK$0.699 View HK$0.756 HK$0.60 HK$0.559 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes Low clamping single line unidirectional ESD protection ESDA5-1F4 STMicroelectronics 1: HK$1.89 119,980Expected 26/11/2026	Mfr. Part No. ESDA5-1F4 Mouser Part No 511-ESDA5-1F4	STMicroelectronics	ESD Protection Diodes / TVS Diodes Low clamping single line unidirectional ESD protection	Datasheet	119,980Expected 26/11/2026	Cut Tape HK$1.89 HK$0.822 HK$0.617 HK$0.518 View Reel HK$0.23 HK$0.444 HK$0.386 HK$0.353 HK$0.263 HK$0.23 MouseReel Available	Min.: 1 Mult.: 1 : 15,000
ESD Protection Diodes / TVS Diodes Quad Bidirect Array ESDA6V1-4BC6 STMicroelectronics 1: HK$4.60 33,440Expected 16/11/2026	Mfr. Part No. ESDA6V1-4BC6 Mouser Part No 511-ESDA6V1-4BC6	STMicroelectronics	ESD Protection Diodes / TVS Diodes Quad Bidirect Array Learn More about STMicroelectronics stm standard products	Datasheet	33,440Expected 16/11/2026	Cut Tape HK$4.60 HK$2.06 HK$1.81 HK$1.36 Reel HK$1.02 View HK$1.31 HK$1.01 HK$0.88 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 6.1V 100W Unidirect ESDA6V1-5SC6 STMicroelectronics 1: HK$4.60 21,000On Order	Mfr. Part No. ESDA6V1-5SC6 Mouser Part No 511-ESDA6V1-5SC6	STMicroelectronics	ESD Protection Diodes / TVS Diodes 6.1V 100W Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	21,000On Order On Order Ship Dates Mfr. No: ESDA6V1-5SC6 Stock: 0 On Order: 9,000 Expected 3/5/2027 12,000 Expected 23/8/2027 Factory Lead Time: 25 Weeks	Cut Tape HK$4.60 HK$2.06 HK$1.81 HK$1.36 Reel HK$0.97 View HK$1.31 HK$0.962 HK$0.847 HK$0.814 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes Automotive dual-line TVS in SOT23-3L for CAN bus (12 V system) ESDCAN04-2BLY STMicroelectronics 1: HK$3.62 171,000On Order	Mfr. Part No. ESDCAN04-2BLY Mouser Part No 511-ESDCAN04-2BLY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive dual-line TVS in SOT23-3L for CAN bus (12 V system) Learn More about STMicroelectronics stm esdcan0x automotive tvs diodes	Datasheet	171,000On Order On Order Ship Dates Mfr. No: ESDCAN04-2BLY Stock: 0 On Order: 39,000 Expected 28/12/2026 63,000 Expected 27/1/2027 69,000 Expected 1/2/2027 Factory Lead Time: 40 Weeks	Cut Tape HK$3.62 HK$1.62 HK$1.41 HK$1.05 HK$0.904 Reel HK$0.592 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes TRANSIL Diode ESDLIN1524BJ STMicroelectronics 1: HK$4.03 56,975On Order	Mfr. Part No. ESDLIN1524BJ Mouser Part No 511-ESDLIN1524BJ	STMicroelectronics	ESD Protection Diodes / TVS Diodes TRANSIL Diode Learn More about STMicroelectronics stm standard products	Datasheet	56,975On Order On Order Ship Dates Mfr. No: ESDLIN1524BJ Stock: 0 On Order: 14,975 Expected 28/12/2026 21,000 Expected 15/2/2027 21,000 Expected 8/6/2027 Factory Lead Time: 40 Weeks	Cut Tape HK$4.03 HK$2.78 HK$1.36 HK$1.13 HK$0.896 Reel HK$0.682 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes Automotive single line ESD protection for LIN bus in SOD323 ESDLIN1524BJ-HQ STMicroelectronics 1: HK$6.66 19,344On Order	Mfr. Part No. ESDLIN1524BJ-HQ Mouser Part No 511-ESDLIN1524BJ-HQ	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive single line ESD protection for LIN bus in SOD323 Learn More about STMicroelectronics stm standard products	Datasheet	19,344On Order On Order Ship Dates Mfr. No: ESDLIN1524BJ-HQ Stock: 0 On Order: 9,344 Expected 7/12/2026 10,000 Expected 21/12/2026 Factory Lead Time: 40 Weeks	Cut Tape HK$6.66 HK$3.74 HK$2.67 HK$2.01 View Reel HK$1.14 HK$1.77 HK$1.73 HK$1.14 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 1500W 36V Unidirect SM15T36A STMicroelectronics 1: HK$13.23 12,500On Order	Mfr. Part No. SM15T36A Mouser Part No 511-SM15T36A	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 36V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	12,500On Order On Order Ship Dates Mfr. No: SM15T36A Stock: 0 On Order: 7,500 Expected 5/7/2027 5,000 Expected 26/7/2027 Factory Lead Time: 16 Weeks	Cut Tape HK$13.23 HK$8.38 HK$6.24 HK$5.56 Reel HK$3.34 View HK$4.35 HK$4.05 HK$2.96 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$15.95 2,500Expected 11/1/2027	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	2,500Expected 11/1/2027	Cut Tape HK$15.95 HK$10.52 HK$8.38 HK$7.33 Reel HK$4.65 View HK$5.89 HK$5.38 HK$4.39 HK$4.34 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes Automotive 3000 W, 5 V TVS in SMC SM30T6.8CAY STMicroelectronics 1: HK$18.33 2,500Expected 1/2/2027	Mfr. Part No. SM30T6.8CAY Mouser Part No 511-SM30T6.8CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 3000 W, 5 V TVS in SMC Learn More about STMicroelectronics stmicro sm30ty transil	Datasheet	2,500Expected 1/2/2027	Cut Tape HK$18.33 HK$11.75 HK$9.21 HK$7.83 Reel HK$5.08 View HK$6.30 HK$5.61 HK$4.56 HK$4.54 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi SM4T35CAY STMicroelectronics 1: HK$13.73 10,000Expected 16/11/2026	Mfr. Part No. SM4T35CAY Mouser Part No 511-SM4T35CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	10,000Expected 16/11/2026	Cut Tape HK$13.73 HK$8.47 HK$6.69 HK$5.75 Reel HK$3.35 View HK$4.50 HK$4.04 HK$3.86 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 SM4T39AY STMicroelectronics 1: HK$13.65 7,648In Stock 10,000Expected 16/11/2026	Mfr. Part No. SM4T39AY Mouser Part No 511-SM4T39AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	7,648In Stock 10,000Expected 16/11/2026	Cut Tape HK$13.65 HK$8.71 HK$6.47 HK$5.76 Reel HK$3.42 View HK$4.53 HK$4.13 HK$3.93 HK$3.08 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 1500W 5.0V Unidirect SM5908 STMicroelectronics 1: HK$19.07 4,700On Order	Mfr. Part No. SM5908 Mouser Part No 511-SM5908	STMicroelectronics	ESD Protection Diodes / TVS Diodes 1500W 5.0V Unidirect Learn More about STMicroelectronics stm standard products	Datasheet	4,700On Order On Order Ship Dates Mfr. No: SM5908 Stock: 0 On Order: 2,200 Expected 13/11/2026 2,500 Expected 15/11/2027 Factory Lead Time: 16 Weeks	Cut Tape HK$19.07 HK$12.49 HK$10.03 HK$8.71 Reel HK$5.74 View HK$6.86 HK$6.57 HK$5.47 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes HJ Temp Transil SMA6J28A-TR STMicroelectronics 1: HK$8.63 49,871On Order	Mfr. Part No. SMA6J28A-TR Mouser Part No 511-SMA6J28A-TR	STMicroelectronics	ESD Protection Diodes / TVS Diodes HJ Temp Transil Learn More about STMicroelectronics stm 600w tvs diode	Datasheet	49,871On Order On Order Ship Dates Mfr. No: SMA6J28A-TR Stock: 0 On Order: 9,871 Expected 30/11/2026 20,000 Expected 29/7/2027 20,000 Expected 15/11/2027 Factory Lead Time: 16 Weeks	Cut Tape HK$8.63 HK$3.97 HK$3.51 HK$2.70 Reel HK$1.98 View HK$2.63 HK$2.52 HK$1.76 MouseReel Available	Min.: 1 Mult.: 1 : 5,000

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