Fuzheng Electronic

KP

KP phase-control thyristors

KP standard thyristors are manufactured using a fully diffused process and housed in disc-type ceramic packages. They support double-sided cooling to meet heat dissipation requirements at high power density. Main applications include phase-controlled rectification, AC voltage regulation, high-power motor drives and speed control, DC traction drives, industrial converters, grid-connected and stand-alone inversion, generator excitation, and power supplies for electrolysis, electroplating and charging. Select the gate trigger circuit and cooling conditions to match the on-state current and voltage class.

Models 20

Selecting KP phase-control thyristors (SCRs)

KP thyristors (SCRs) are used for phase-controlled rectification and power regulation. Select a model by considering current waveform and duty cycle together with the required voltage class, trigger circuit and cooling conditions. The model designation identifies a rating class; it does not by itself establish the usable limits in your installation.

  • Compare the operating current waveform and duty cycle with the conditions stated for the selected model.
  • Check that the trigger circuit matches the device's gate drive requirements before choosing a replacement.
  • Review voltage class, operating temperature and cooling together rather than selecting from the model designation alone.

Questions before ordering

What should I include in an enquiry?

Provide the model, quantity and application, together with voltage, current waveform, operating frequency and cooling conditions. A drawing helps confirm mounting compatibility.

Can I select a replacement using only current and voltage?

No. Check switching and trigger requirements, surge duty, package dimensions, clamping or mounting requirements, and the complete thermal arrangement.

Which documents should I request?

Identify the model-specific datasheet, dimensional drawing, test records and any market-specific compliance evidence your project requires. Confirm their scope with the quotation.

Let us review your next requirement.

Send the model or drawing, quantity, electrical conditions, cooling method and destination. Include your company name and the intended application.

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