Thyristor Semiconductor Products Page 161 Thyristor

2014 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/14/14 Teccor brand Thyristors 8 Amp Alternistor (High Commutation) Triac for LED dimmer application Figure 2: Normalized DC Gate Trigger Current for All Quadrants vs. Junction Temperature Junction Temperature (T J )- C -65 -40 -15 10 35 60 85 110 0.0 Ratio of I GT I GT (T J = 25C) 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Figure 1: Definition of Quadrants Note: Alternistors will not operate in QIV MT2 POSITIVE (Positive Half Cycle) MT2 NEGATIVE (Negative Half Cycle) MT1 MT2 + I GT REF QII MT1 I GT GATE MT2 REF MT1 MT2 REF MT1 MT2 REF QI QIV QIII ALL POLARITIES ARE REFERENCED TO MT1 (-) I GT GATE (+) I GT - I GT GATE (-) I GT GATE (+) + - Figure 3: Normalized DC Holding Current vs. Junction Temperature Figure 4: Normalized DC Gate Trigger Voltage for All Quadrants vs. Junction Temperature Junction Temperature (T J )- C -65 -40 -15 10 35 60 85 110 0.0 Ratio of I H I H (T J = 25C) 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Junction Temperature (T J )- C Ratio of V GT V GT (T J = 25C) -65 -40 -15 10 35 60 85 110 0.0 0.5 1.0 1.5 2.0 Figure 6: Maximum Allowable Case Temperature vs. On-State Current (Standard / Alternistor Triac) RMS On-State Current (I T(RMS) ) - Amps 0 2 4 6 8 10 0 2 4 6 8 10 12 14 16 18 Average On-State Power Dissipation (P D(AV) ) - Watts Figure 5: Power Dissipation (Typical) vs. RMS On-State Current RMS On-State Current (I T(RMS) ) - Amps 60 70 80 90 100 110 120 130 Maximum Allowable Case Temperature (T C ) - C 0 1 2 3 4 5 6 7 8

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