The 16TTS12 SCR is a high-performance, phase control thyristor (SCR) manufactured by Littelfuse (formerly by IXYS). It is designed for use in power switching and control applications such as motor drives, inverters, AC power control, and soft starters.
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Repetitive Peak Off-State Voltage (V<sub>DRM</sub>, V<sub>RRM</sub>): 1200V
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Average On-State Current (I<sub>T(AV)</sub>): 16 Amps
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RMS On-State Current (I<sub>T(RMS)</sub>): ~25 Amps
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Surge (Peak) On-State Current (I<sub>TSM</sub>): Up to 250 Amps (8.3ms half-sine)
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Gate Trigger Current (I<sub>GT</sub>): Typically low, enabling efficient control
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Package Type: TO-220AB or similar for easy mounting and heat dissipation
Features:
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Designed for high surge capability and reliable switching
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Low gate current requirements for triggering
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Electrically isolated back (in certain variants)
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Compact size for PCB or heatsink mounting
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Suitable for both line-commutated and phase-controlled applications
Typical Applications:
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AC power switching
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Phase angle control (light dimmers, heater controls)
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Motor speed controllers
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Soft starters and inverters
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Static switches and relay replacements
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