● Product Features and Main Applications: A silicon unidirectional device with a four-layer PNPN structure; featuring proprietary single-sided groove‑etching technology and mesa glass passivation; with multi‑layer metallized electrodes on the back side; offering high blocking voltage and excellent thermal stability; primarily used in motor speed controllers for vacuum cleaners, power tools, and similar applications; solid‑state relays; heating controllers (temperature regulation); and other phase‑control circuits.

● Product Features and Main Applications: A silicon unidirectional device with a four-layer PNPN structure; featuring proprietary single-sided groove‑etching technology and mesa glass passivation; with multi‑layer metallized electrodes on the back side; offering high blocking voltage and excellent thermal stability; primarily used in motor speed controllers for vacuum cleaners, power tools, and similar applications; solid‑state relays; heating controllers (temperature regulation); and other phase‑control circuits.

● Product Features and Main Applications: Features proprietary single-sided groove‑etching technology and a glass‑passivation process for the device surface; includes a multi‑layer metallized electrode on the back side; offers high breakdown voltage and excellent thermal stability. Primarily used in: heating controllers (temperature regulation); color‑light controllers; solid‑state relays; motor speed controllers for vacuum cleaners, power tools, and similar applications; as well as other phase‑control circuits.

● Product Features and Main Applications: Features proprietary single-sided groove‑etching technology and a glass‑passivation process for the device surface; includes a multi‑layer metallized electrode on the back side; offers high breakdown voltage and excellent thermal stability. Primarily used in: heating controllers (temperature regulation); color‑light controllers; solid‑state relays; motor speed controllers for vacuum cleaners, power tools, and similar applications; as well as other phase‑control circuits.