Thyristor Semiconductor Products Page 27 Thyristor

2014 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/14/14 Teccor brand Thyristors AN1002 A K A K G Sensitive SCR Power SCR MT2 G Sensitive Triac Power Triac * Resistor is provided for limiting gate current (I GTM ) peaks to power device. * MT2 MT1 50 40 30 20 10 0 10 20 30 40 (mA) 20 10 20 10 QUADRANT II QUADRANT III (mA) QUADRANT I QUADRANT IV I GT (Solid Line) I L (Dotted Line) I H (+) I H (-) Typical 4 A Triac Gating, Latching, and Holding Relationship Parameter Quadrants or Operating Mode Quadrant I Quadrant II Quadrant III Quadrant IV I GT (mA) 10 17 18 27 I L (mA) 12 48 12 13 I H (mA) 10 12 The following table and Figure AN1002.9 show the relationship of gating, latching, and holding of a 4 A device. The relationships of gating, latching, and holding for several device types are shown in the following table. For convenience all ratios are referenced to Quadrant I gating. Typical Ratio of Gating, Latching, and Holding Current at 25 O C Devices Ratio I GT (II) ------------ I GT (I) I GT (III) ------------ I GT (I) I GT (IV) ------------ I GT (I) I L (I) ------------ I GT (I) I L (II) ------------ I GT (I) I L (III) ------------ I GT (I) I L (IV) ------------ I GT (I) I H (+) ------------ I GT (I) I H (-) ------------ I GT (I) 4A Triac 1.6 2.5 2.7 1.2 4.8 1.2 1.3 1.0 1.2 10A Triac 1.5 1.4 3.1 1.6 4.0 1.8 2.0 1.1 1.6 15A Alternistor 1.5 1.8 - 2.4 7.0 2.1 - 2.2 1.9 1A Sensitive SCR - 25 - 25 - 6A SCR - 3.2 - 2.6 - Gating, Latching, and Holding of SCRs and Triacs (continued)

Previous Page
Next Page