KK fast thyristors

KK1600A1800V

KK fast thyristors are manufactured using a fully diffused process and housed in disc-type ceramic packages. They support double-sided cooling and feature fast switching, short turn-off time and low high-frequency losses. Main applications include medium- and high-frequency inversion, choppers, pulsed power supplies, induction heating, electric welding machines, frequency converters, and AC and DC motor speed control. Select the gate trigger circuit and cooling conditions to match the operating frequency, turn-off time, on-state current and voltage class.

Current class
1600 A
Voltage class
1800 V
Weight
0.65 kg
Discuss your requirements

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Technical details

Product name
Fast thyristor (disc type)
Model
KK1600A1800V
Current class
1600 A
Voltage class
1800 V
Weight
0.65 kg
Cooling
Double-sided cooling
Package
Disc-type ceramic package
Minimum order quantity
300
Catalogue reference model
KK1600A
Catalogue row voltage range (VDRM / VRRM)
600–2500 V
Turn-off time (tq)
16–35 µs
Critical rate of rise of off-state voltage (dv/dt)
500 V/µs
Repetitive peak forward and reverse current (IDRM / IRRM)
120 mA
Trigger current (IGT)
40–300 mA (25 °C)
Trigger voltage (VGT)
0.9–3.5 V (25 °C)
Holding current (IH)
20–500 mA (25 °C)
Peak on-state voltage / test current (VTM / ITM)
3.15 V / 3000 A (25 °C)
Thermal impedance (Rth(j-hs))
0.018 °C/W
Maximum rated junction temperature (Tjm)
115 °C
Mounting force
21–30 kN
Catalogue outline references
A-9, A-10
Catalogue recommended heatsinks
SS14
Parameter scope and test conditions
Catalogue reference values for the matching current rating. IGT, VGT, IH and VTM/ITM are tested at 25 °C; other electrical parameters are tested at Tj = 115 °C. The outline and heatsink must match the ordered configuration.
Parameter source
KK1600A technical parameters supplied by Fuzheng Electronic · PDF

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.

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