TZ425N18KOF Infineon - Thyristor Module

Replacement for: Infineon recommends TZ425N18KOF as the replacement for TZ425N12KOF. We also supply the original part.

Category: Thyristor & SCR Modules

Specifications: 1800V, 425A

TZ425N18KOF Infineon Thyristor Module

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TZ425N18KOF Description

The TZ425N18KOF from Infineon Technologies is a thyristor module with a 1800 V / 425 A rating. You'll find thyristors like this in soft starters, static switches, DC motor controllers and heater controls. If you are repairing older equipment, we can usually find this exact part, including date codes that are no longer in production.

USComponent (Young & New Century LLC) supplies power modules, thyristors, diodes and other industrial components, including legacy parts. Contact us for a quote on the TZ425N18KOF, and please confirm ratings against the datasheet before ordering.

Summary of Features

TZ425N18KOF is an 1800 V / 425 A thyristor module from Infineon Technologies.

  • Pressure contact technology for high reliability
  • Advanced Medium Power Technology (AMPT)
  • Electrically insulated base plate (50 mm)
  • Applications: soft starters, drive rectifiers, crowbar, power controllers, UPS, static/bypass switches

Target Applications

Infineon TZ425N18KOF is used for soft starter, rectifier for drives applications, crowbar applications, power controllers, rectifiers for UPS, battery chargers, static switches and bypass swich.

Key Specifications

TZ425N18KOF is an 1800 V / 425 A thyristor module from Infineon Technologies. Source: manufacturer datasheet (detailed).

ParameterValue
ManufacturerInfineon Technologies
Product typeThyristor module (phase control)
ConfigurationSingle thyristor (TZ)
Repetitive peak voltage (VDRM, VRRM)1800 V (VRSM 1900 V)
Average on-state current (ITAVM)425 A (TC = 85 °C); 510 A (TC = 74 °C)
Maximum RMS on-state current (ITRMSM)800 A
Surge current (ITSM)14500 A (Tvj = 25 °C, tP = 10 ms); 12500 A (Tvj = Tvj max, tP = 10 ms)
I²t1051000 A²s (Tvj = 25 °C, tP = 10 ms)
On-state voltage (vT)max. 1.50 V (Tvj = Tvj max, iT = 1500 A)
Gate trigger current / voltage (IGT / VGT)max. 250 mA / max. 1.5 V (Tvj = 25 °C, vD = 6 V)
Insulation test voltage (VISOL)3.0 kV (RMS, 50 Hz, 1 min); 3.6 kV (1 s)
Maximum junction temperature (Tvj max)125 °C
DatasheetAvailable on this page (PDF)

TZ425N18KOF Video

TZ425N18KOF video

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Related Part Numbers

TZ430N18KOF
1800 (V) / 430(A)
TZ400N18KOF
1800 (V) / 400(A)
TZ425N16KOF
1600V, 800A
TZ375N18KOF
1800(V) / 375(A)
TZ500N18KOF
1800V, 500A
TZ425N14KOF
1400V, 425A
TZ600N18KOF
600A / 1800V
TZ425N12KOF
1200V, 425A
TZ425N20
2000V, 425A
TZ425N18
1800V, 425A
TZ425N16
1600V, 425A
TZ425N12
1200V, 425A
TZ425N08KOF
425A / 800V
TZ425N08
800V, 425A
TZ430N08
800V, 430A
TZ430N12
1200V, 430A