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10 mar 2008 · SCRs, Triacs, and AC switches,thermal management precautions for handling and mounting. Introduction. The behavior of a semiconductor device depends on the temperature of its silicon chip. This is why electrical parameters are given at a specified temperature.
SCRs, Triacs, AC switches and A.S.D™ ... max 4 - 30 A 1 - 40 A 0.8 - 16 A 4 - 25 A 8 - 12 A VBO min 28 - 35 V V DRM, V RRM 600 - 800 V 600 - 800 V 600 - 800 V 600 - 1200 V 500 - 600 V VBO max 34 - 45 V I TSM max 30 - 270 A 8 - 400 A 8 - 160 A 30 - 250 A 65 - 100 A Tj max 125 °C I GT
Introduction. Parameter list for SCRs, Triacs, AC Switches, and Diacs. All datasheet parameters are rated as minimum or maximum values, corresponding to the product parameter distribution. In each datasheet, two classes of parameters are available: Absolute ratings, corresponding to critical parameters, not to be exceeded for safe operation.
Definition. The latching current (IL) of a TRIAC is the minimum value of the load current (current flowing between electrodes A2 and A1) that keeps the device conducting when the gate signal is removed (see Figure 1). Figure 1 below shows the latching current and the gate current pulse.
TRIAC is defined as an electronic component approximately equivalent to two silicon‐ controlled rectifiers (SCRs/thyristors) joined in inverse parallel (paralleled but with the polarity reversed) and with their gates connected together.
Vishay has a wide range of phototriacs which span the gamut in terms of performance, features, and cost. Vishay’s phototriacs vary, in terms of break-down voltage, power rating, and a parameter which is most important when designing with phototriacs and TRIACs in general, the dv/dt parameter.
The sensitive gate triac is a bidirectional AC switch and is gate controlled for either polarity of main terminal voltage. It is used primarily for AC switching and phase control applications such as motor speed controls, temperature modulation controls, and lighting controls.
