TT250N12KOFHPSA1

SCRs - Modules Overview

The TT250N12KOFHPSA1 is a phase control thyristor module from the TT250N series, manufactured by Infineon Technologies. It utilizes pressure contact technology and features an electrically insulated base plate. The device supports a repetitive peak forward off-state and reverse voltage (VDRM/VRRM) of 1200 V. It provides a maximum RMS on-state current (ITRMSM) of 410 A and an average on-state current (ITAVM) of 250 A at a case temperature of 85 °C. The surge current rating (ITSM) reaches 8000 A for 10 ms at 25 °C. Key electrical parameters include a threshold voltage (VT0) of 0.8 V, slope resistance (rT) of 0.7 mΩ, and a junction-to-case thermal resistance (RthJC) of 0.124 K/W per module under DC conditions.

SCRs - Modules Feature Summary

• Pressure contact technology ensures high reliability and robust mechanical connection.
• Industrial standard package design with an electrically insulated base plate.
• Optional pre-applied thermal interface material (TIM) available to simplify mounting.

SCRs - Modules Applications

• Soft starters
• Rectifiers for drive applications
• Crowbar applications
• Power controllers
• Static switches

SCRs - Modules Procurement Notes

Verify component authenticity through authorized channels. Confirm that the specific ordering suffix matches the required voltage class and configuration. Check for RoHS compliance status and ensure storage conditions adhere to the specified limits to maintain product integrity prior to installation.

SCRs - Modules Selection Notes

Evaluate thermal management requirements based on the junction-to-case thermal resistance of 0.124 K/W. Ensure the gate trigger characteristics align with the driver circuit capabilities, specifically the maximum gate trigger current of 200 mA. Verify that the operating temperature range fits within the -40 °C to +125 °C specification for the intended environment.

SCRs - Modules Part Context

This component belongs to the TT250N family of network thyristor modules designed for phase control applications. The series offers various voltage ratings ranging from 1200 V to 1800 V, sharing common mechanical dimensions and thermal characteristics. The TT250N designation indicates a 250 A average current rating within this standardized industrial module lineup.

SCRs - Modules Replacement Considerations

Consult official replacement lists for equivalent models within the same voltage and current specifications. Verify compatibility regarding mounting torque and terminal configurations when substituting with other modules in the TT250N series or comparable industrial thyristor packages.

SCRs - Modules FAQ

What is the critical rate of rise of on-state current (diT/dt)cr?

The critical rate of rise of on-state current is 150 A/µs, measured according to DIN IEC 747-6 standards at 50 Hz frequency.

Does the module feature an insulated base plate?

Yes, the TT250N module includes an electrically insulated base plate, providing basic insulation classified as Class 1 according to IEC61140.

What is the maximum allowable case temperature?

The maximum allowable case temperature (TC op) ranges from -40 °C to +125 °C, while the maximum junction temperature (Tvj max) is also rated at 125 °C.