About the article

Dual-Anode MOSFET Thyristor

Faster and less wasteful than the old SCR

Dual-Anode MOSFET Thyristor
Inherent to their elementary design, thyristors and triacs acting as load switches are characterized by high cathode-anode voltage drop in the ‘open’ state, and “much left to desire” in terms their switching performance. Consequently these ‘SCR’ devices are prone to high power dissipation, occasionally causing overheating and eventual failure of the complete semiconductor device. At the same time, the very heating of a traditional thyristor equals electric power wasted, leading to considerable losses when scaled up to mass industrial and household use across the globe. High time for a ‘greener’ device, and here it is.
Downloading of this magazine article is reserved for registered users only.
Login | Register now!
Download the BOM list
The BOM (Bill of Materials) is the technically exhaustive listing of parts and other hardware items used to produce the working and tested prototype of any Elektor Labs project. The BOM file contains deeper information than the Component List published for the same project in Elektor Magazine. If required the BOM gets updated directly by our lab engineers. As a reader, you can download the list here.
Want to learn more about our BOM list? Read the BOM list article for extra information.
Component list

Component List

LV Dual-Anode MOSFET Thyristor board, no. 160515-1


R1,R5, R8 = 10kΩ, 5%, 0.25W, 250V

R2 = 15kΩ, 5%, 0.25W, 250V

R3  = 5.6kΩ, 5%, 0.25W, 250V

R4, R7 = 100Ω, 5%, 0.25W, 250V

R6 = 22kΩ, 5%, 0.25W, 250V



D1,D2 = 1N5242BTR, Zener diode, 12V, 5%, 0.5W, DO-35

Th1 = P0102DA 1AA3, thyristor, 800mA, 400V, TO-92

T1,T2 = SPP15N60C3XKSA1, N-channel MOSFET, 600V, 15A, TO-220



K1 = 2-way PCB screw terminal block, 0.2’’ pitch, 630V

K2 = 3-way PCB screw terminal block, 0.2’’ pitch, 630V

PCB no. 160515-1 v1.1 (Elektor Store)

Component List

HV Dual-Anode MOSFET Thyristor board, no. 160515-2


R1 = 100kΩ, 5%, 0.25W, 250V

R2, R3 = 470kΩ, 5%, 1W, 500V

R4 = 10kΩ, 5%, 0.25W, 250V

R5 = 330kΩ, 5%, 1W, 500V



D1,D2 = 1N4742A, Zener diode, 12V, 5%, 1W, DO-41

D3-D9 = 1N4007, DO-41

Th1 = BT151-800R, thyristor, 800V, 7.5A, Igt 15mA max., TO-220

T1,T2 = SPP15N60C3XKSA1, N-channel MOSFET, TO-220



K2,K3 = 2-way PCB screw terminal block, 0.3’’ pitch, 630V

K1 = 3-way PCB screw terminal block, 0.3’’ pitch, 630V

PCB no. 160515-2 v1.1 (Elektor Store)

We buy at:

Loading comments...