Diac Trigger Diode

Topdiode Group is an ISO 9001: 2015 Diac Trigger Diode China factory and Diac Trigger Diode China supplier since 1995, including 4 manufacturing sites with 780 employees & additional about 80 technical experts. After 26 years development, Topdiode Group has became a very famous & reliable switching diode China manufacturer & quality is recognized by international companies such as GE, PNE(Philips’s OEM) so on. We export to USA to USA, Canada, Brazil, Argentina, Mexico, South Africa, Tunisia, New Zealand, Australia, Germany, Italy, France, UK, Poland, Bulgaria, Spain, Portugal, Russia, Belarus, Ukraine, Korea, Vietnam, Singapore, Malaysia, Indonesia, India, Philippine,Thailand etc. Our market position is to replace Littelfuse, Bourns, Diodes, Microchip, STMicroelectronics, On Semi, Taiwan Semiconductor etc with much better price, much fast lead time and reliable quality.


The DIAC (diode for alternating current) is a diode that conducts electrical current only after its breakover voltage, VBO, has been reached momentarily. ... DIACs have no gate or trigger electrode, unlike some other thyristors that they are commonly used to trigger, such as TRIACs. Topdiode offer Diac Trigger Diode as following (part of):
DB3 Trigger Diode
DB4 Trigger Diode
LLDB3 Trigger Diode


Topdiode Diac Trigger Diode are RoHS, Reach Compliant; Halogen free(on request) and Metal Conflict Free. Our delivery is fast to 3-4 weeks for regular parts. We are strong in complete management, strict quality control system, and excellent sales service. Sales representative & distributors are all over the world in order to better serve our customers. Recent years, many diodes are in shortage, could you please send us emails and RFQ. We can help you for cost down and solve your shortage problem.