Diodes Intros Thyristor Surge Protective Devices
Diodes Inc. (Westlake Village, CA) announced the release of a comprehensive line of Thyristor Surge Protective Devices (TSPDs) in SMB surface-mount packages. The new line of devices offers surge protection against hazardous transient voltages caused by lightning strikes and power cross events for widely used data transmission and telecom equipment, such as modems and Internet hardware.
In standby mode, the surge protection devices exhibit high off-state impedance. Upon application of a voltage exceeding the breakover voltage, the TSPDs switch from high off-state impedance to low on-state impedance, allowing the excess surge current to be directed away from sensitive circuits. Employing crowbar switching action and solid-state thyristor technology, the components cannot be damaged by voltage, provide effective protection within nanoseconds, and eliminate voltage overshoot caused by fast-rising transients. The TSPDs are designed to withstand surge currents up to 100A, eliminate hysteresis and heat dissipation common with other clamping technologies, and have minimal capacitance.
