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X040 Sensitive Gate SCRs & Z040 Triacs

STMicroelectronics X040 Sensitive Gate SCRs and Z040 Triacs are 750V devices designed for power regulation and switching applications. The unidirectional X040 Sensitive Gate SCRs can conduct current in one direction and block the current in the other direction. The bidirectional Z040 Triacs can conduct current in both directions and can block current in both directions. These highly sensitive devices are suited for home appliances, power tools, and industrial systems and can drive loads up to 4A.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) Filter the results in the table by unit price based on your quantity.	Qty.	Product Type
Triacs 4 A Triac Z0409MB STMicroelectronics 1: $1.22 4,883In Stock	Mfr. Part # Z0409MB Mouser Part # 511-Z0409MB	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	4,883In Stock	Cut Tape $1.22 $0.811 $0.526 $0.403 Reel $0.32 View $0.363 $0.279 $0.271	Min.: 1 Mult.: 1 : 2,500	Triacs
Triacs 4 A Triac Z0402MB STMicroelectronics 1: $1.22 5,000In Stock	Mfr. Part # Z0402MB Mouser Part # 511-Z0402MB	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	5,000In Stock	Cut Tape $1.22 $0.811 $0.526 $0.403 Reel $0.32 View $0.363 $0.279 $0.271	Min.: 1 Mult.: 1 : 2,500	Triacs
Triacs 4 A Triac Z0410MB STMicroelectronics 1: $1.22 4,953In Stock	Mfr. Part # Z0410MB Mouser Part # 511-Z0410MB	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	4,953In Stock	Cut Tape $1.22 $0.811 $0.526 $0.403 Reel $0.32 View $0.363 $0.279 $0.271	Min.: 1 Mult.: 1 : 2,500	Triacs
SCRs 4 A Sensitive gate SCR X0405MH STMicroelectronics 1: $1.21 11,864In Stock	Mfr. Part # X0405MH Mouser Part # 511-X0405MH	STMicroelectronics	SCRs 4 A Sensitive gate SCR Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	11,864In Stock	Cut Tape $1.21 $0.513 $0.454 $0.369 Reel $0.268 View $0.302 $0.245	Min.: 1 Mult.: 1 : 3,000	SCRs
SCRs 4 A Sensitive gate 200 uA SCR X0402MB STMicroelectronics 1: $1.22 888In Stock 5,000Expected 2026-10-28	Mfr. Part # X0402MB Mouser Part # 511-X0402MB	STMicroelectronics	SCRs 4 A Sensitive gate 200 uA SCR Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	888In Stock 5,000Expected 2026-10-28	Cut Tape $1.22 $0.757 $0.491 $0.374 Reel $0.297 View $0.338 $0.258 $0.248	Min.: 1 Mult.: 1 : 2,500	SCRs
SCRs 4 A Sensitive gate 200 uA SCR X0402MH STMicroelectronics 1: $1.21 4,298In Stock	Mfr. Part # X0402MH Mouser Part # 511-X0402MH	STMicroelectronics	SCRs 4 A Sensitive gate 200 uA SCR Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	4,298In Stock	Cut Tape $1.21 $0.513 $0.454 $0.369 Reel $0.268 View $0.302 $0.248 $0.245	Min.: 1 Mult.: 1 : 3,000	SCRs
SCRs 4 A Sensitive gate SCR X0405MB STMicroelectronics 1: $1.22 535In Stock 7,500On Order	Mfr. Part # X0405MB Mouser Part # 511-X0405MB	STMicroelectronics	SCRs 4 A Sensitive gate SCR Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	535In Stock 7,500On Order On Order Ship Dates Mfr. #: X0405MB Stock: 535 Can Ship Immediately On Order: 2,500 Expected 2026-10-09 5,000 Expected 2026-10-26 Factory Lead-Time: 15 Weeks	Cut Tape $1.22 $0.757 $0.589 $0.454 Reel $0.297 View $0.338 $0.258 $0.248	Min.: 1 Mult.: 1 : 2,500	SCRs
Triacs 4 A Triac Z0402MH STMicroelectronics 1: $1.30 2,558In Stock	Mfr. Part # Z0402MH Mouser Part # 511-Z0402MH	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	2,558In Stock	Cut Tape $1.30 $0.549 $0.487 $0.396 Reel $0.289 View $0.327 $0.268	Min.: 1 Mult.: 1 : 3,000	Triacs
Triacs 4 A Triac Z0405MB STMicroelectronics 1: $1.30 4,181In Stock	Mfr. Part # Z0405MB Mouser Part # 511-Z0405MB	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	4,181In Stock	Cut Tape $1.30 $0.811 $0.526 $0.403 Reel $0.32 View $0.363 $0.279 $0.271	Min.: 1 Mult.: 1 : 2,500	Triacs
Triacs 4 A Triac Z0405MH STMicroelectronics 1: $1.30 2,966In Stock	Mfr. Part # Z0405MH Mouser Part # 511-Z0405MH	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	2,966In Stock	Cut Tape $1.30 $0.549 $0.487 $0.396 Reel $0.289 View $0.327 $0.268	Min.: 1 Mult.: 1 : 3,000	Triacs
Triacs 4 A Triac Z0409MH STMicroelectronics 1: $1.30 2,923In Stock	Mfr. Part # Z0409MH Mouser Part # 511-Z0409MH	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	2,923In Stock	Cut Tape $1.30 $0.549 $0.487 $0.396 Reel $0.289 View $0.327 $0.268	Min.: 1 Mult.: 1 : 3,000	Triacs
Triacs 4 A Triac Z0410MH STMicroelectronics 1: $1.30 3,729In Stock	Mfr. Part # Z0410MH Mouser Part # 511-Z0410MH	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	3,729In Stock	Cut Tape $1.30 $0.549 $0.487 $0.396 Reel $0.289 View $0.327 $0.268	Min.: 1 Mult.: 1 : 3,000	Triacs

X040 Sensitive Gate SCRs & Z040 Triacs

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