High-Power Press-Pack Thyristor, commonly known as an SCR (Silicon Controlled Rectifier), is a high-current, high-power commonly used and critical switching device in modern power electronic frequency conversion equipment. It offers numerous advantages, including high operating current, high voltage rating, ease of parallel and series connection, and simple testing methods for functionality. It is widely used in induction heating and various other industries. Based on years of application experience, our company provides the following thyristors as well as medium frequency power supply fault diagnosis and repair services.
Models:
Y38KPE KP500A KP800A 1200V
Y38KAE KA500A KA800A 1600V
Y40KKE KK800A KK500A 1600V
Features:
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Full diffusion process
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Ceramic press-pack encapsulation
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Center-amplified gate structure
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Double-sided cooling
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High current capability
Typical Applications:
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High-power converters
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AC/DC motor control
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AC/DC switches
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Phase-controlled rectifiers
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Active and passive inverters
Notes:
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IGT, VGT, and IH are measured at 25°C. Unless otherwise specified, all other parameters in the datasheet are measured at Tjm (maximum junction temperature).
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I²t = I²TSM × tw / 2; tw = the base width of the sinusoidal half-wave current. At 50Hz, I²t = 0.005 × I²TSM (A²s).
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When used with a 60Hz current:
ITSM (8.3ms) = ITSM (10ms) × 1.066, Tj = Tjm
I²t (8.3ms) = I²t (10ms) × 0.943, Tj = Tjm -
VTO: Threshold voltage; rT: Slope resistance.
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Gate lead: White or colorless; Cathode lead (if required): Red.

