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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 (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Product Type
SCRs 4 A Sensitive gate 200 uA SCR X0402MH STMicroelectronics 1: 0,671 € 4.288In Stock	Mfr. Part No. X0402MH Mouser Part No 511-X0402MH	STMicroelectronics	SCRs 4 A Sensitive gate 200 uA SCR Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	4.288In Stock	Cut Tape 0,671 € 0,306 € 0,271 € 0,22 € Reel 0,16 € View 0,181 € 0,148 € 0,146 €	Min.: 1 Mult.: 1 : 3.000	SCRs
Triacs 4 A Triac Z0402MB STMicroelectronics 1: 0,731 € 4.960In Stock	Mfr. Part No. Z0402MB Mouser Part No 511-Z0402MB	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	4.960In Stock	Cut Tape 0,731 € 0,484 € 0,314 € 0,241 € Reel 0,191 € View 0,217 € 0,167 € 0,162 €	Min.: 1 Mult.: 1 : 2.500	Triacs
Triacs 4 A Triac Z0410MB STMicroelectronics 1: 0,645 € 4.943In Stock	Mfr. Part No. Z0410MB Mouser Part No 511-Z0410MB	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	4.943In Stock	Cut Tape 0,645 € 0,421 € 0,293 € 0,241 € Reel 0,191 € View 0,217 € 0,167 € 0,161 €	Min.: 1 Mult.: 1 : 2.500	Triacs
Triacs 4 A Triac Z0409MB STMicroelectronics 1: 0,731 € 4.878In Stock	Mfr. Part No. Z0409MB Mouser Part No 511-Z0409MB	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	4.878In Stock	Cut Tape 0,731 € 0,484 € 0,314 € 0,241 € Reel 0,191 € View 0,217 € 0,167 € 0,162 €	Min.: 1 Mult.: 1 : 2.500	Triacs
SCRs 4 A Sensitive gate 200 uA SCR X0402MB STMicroelectronics 1: 0,731 € 2.763In Stock 2.500Expected 11/30/2026	Mfr. Part No. X0402MB Mouser Part No 511-X0402MB	STMicroelectronics	SCRs 4 A Sensitive gate 200 uA SCR Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	2.763In Stock 2.500Expected 11/30/2026	Cut Tape 0,731 € 0,452 € 0,293 € 0,224 € Reel 0,177 € View 0,202 € 0,154 € 0,148 €	Min.: 1 Mult.: 1 : 2.500	SCRs
SCRs 4 A Sensitive gate SCR X0405MB STMicroelectronics 1: 0,731 € 3.030In Stock 5.000Expected 12/3/2026	Mfr. Part No. X0405MB Mouser Part No 511-X0405MB	STMicroelectronics	SCRs 4 A Sensitive gate SCR Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	3.030In Stock 5.000Expected 12/3/2026	Cut Tape 0,731 € 0,452 € 0,352 € 0,271 € Reel 0,204 € View 0,228 € 0,154 € 0,146 €	Min.: 1 Mult.: 1 : 2.500	SCRs
SCRs 4 A Sensitive gate SCR X0405MH STMicroelectronics 1: 0,722 € 11.859In Stock	Mfr. Part No. X0405MH Mouser Part No 511-X0405MH	STMicroelectronics	SCRs 4 A Sensitive gate SCR Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	11.859In Stock	Cut Tape 0,722 € 0,306 € 0,271 € 0,22 € Reel 0,16 € View 0,181 € 0,145 €	Min.: 1 Mult.: 1 : 3.000	SCRs
Triacs 4 A Triac Z0405MB STMicroelectronics 1: 0,774 € 3.891In Stock	Mfr. Part No. Z0405MB Mouser Part No 511-Z0405MB	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	3.891In Stock	Cut Tape 0,774 € 0,484 € 0,314 € 0,241 € Reel 0,191 € View 0,217 € 0,167 € 0,162 €	Min.: 1 Mult.: 1 : 2.500	Triacs
Triacs 4 A Triac Z0405MH STMicroelectronics 1: 0,774 € 2.696In Stock	Mfr. Part No. Z0405MH Mouser Part No 511-Z0405MH	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	2.696In Stock	Cut Tape 0,774 € 0,328 € 0,291 € 0,237 € Reel 0,173 € View 0,195 € 0,16 €	Min.: 1 Mult.: 1 : 3.000	Triacs
Triacs 4 A Triac Z0409MH STMicroelectronics 1: 0,774 € 2.918In Stock	Mfr. Part No. Z0409MH Mouser Part No 511-Z0409MH	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	2.918In Stock	Cut Tape 0,774 € 0,328 € 0,291 € 0,237 € Reel 0,173 € View 0,195 € 0,16 €	Min.: 1 Mult.: 1 : 3.000	Triacs
Triacs 4 A Triac Z0410MH STMicroelectronics 1: 0,774 € 2.723In Stock 6.000Expected 11/30/2026	Mfr. Part No. Z0410MH Mouser Part No 511-Z0410MH	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	2.723In Stock 6.000Expected 11/30/2026	Cut Tape 0,774 € 0,328 € 0,291 € 0,237 € Reel 0,173 € View 0,195 € 0,16 €	Min.: 1 Mult.: 1 : 3.000	Triacs
Triacs 4 A Triac Z0402MH STMicroelectronics 1: 0,774 € 7.951Expected 5/3/2027	Mfr. Part No. Z0402MH Mouser Part No 511-Z0402MH	STMicroelectronics	Triacs 4 A Triac Learn More about STMicroelectronics stm x040 scrs z040 triacs	Datasheet	7.951Expected 5/3/2027	Cut Tape 0,774 € 0,328 € 0,291 € 0,237 € Reel 0,173 € View 0,195 € 0,16 €	Min.: 1 Mult.: 1 : 3.000	Triacs