A Thyristor is any semiconductor switch with a bi-stable action depending on p-n-p-n regenerative feedback. Thyristors are nor mally two- or three-terminal devices for either unidirectional or bi
directional circuit configurations. Thyristors can have many forms, but they have certain commonalities. All Thyristors are solid state switches that are normally open circuits (very high impedance), capable of withstanding rated blocking/off-state voltage until triggered to on state. When triggered to on state, Thyristors become a low-impedance current path until principle current either stops or drops below a minimum holding level. After a Thyristor is triggered
to on-state condition, the trigger current can be removed without turning off the device. Thyristors are used to control the flow of electrical currents in applications including:
• Home appliances (lighting, heating, temperature control, alarm activation, fan speed)
• Electrical tools (for controlled actions such as motor speed, stapling event, battery charging)
• Outdoor equipment (water sprinklers, gas engine ignition, electronic displays, area lighting, sports equipment, physical fitness)
Description The CR range of protectors are based on the proven technology of the T10 Thyristor Product. Designed for transient voltage protection of telecommunications equipment, it provides higher power handling than a conventional avalanche diode (TVS) and when compared to a GDT offers lower voltage clamping levels and infinite surge life.
Packaged in a transfer molded DO-214AA surface mount outline designed for high speed pick & place machines used in today’s surface mount assembly lines.
FEATURES * International standard package * Direct copper bonded Al2O3-ceramic base plate * Planar passivated chips * Isolation voltage 3600 V~ * UL registered, E 72873 * Gate-cathode twin pins for version 1
APPLICATIONS * DC motor control * Softstart AC motor controller * Light, heat and temperature control
ADVANTAGES * Space and weight savings * Simple mounting with two screws * Improved temperature and power cycling * Reduced protection circuits