TZ800N18KOFB1HPSA2

SCRs - Modules Overview

The TZ800N18KOFB1HPSA2 is a single silicon thyristor module from Infineon Technologies, designed for phase control applications. It features a 70 mm pressure contact package with a rated repetitive off-state voltage (VDRM/VRRM) of 1800 V and an average on-state current (ITAVM/TC) of 800 A at 85 °C. The device has a maximum on-state resistance (rT) of 0.17 mΩ and a typical forward voltage drop (VT0) of 0.82 V at maximum junction temperature. Key electrical parameters include a critical rate of rise of on-state current ((di/dt)cr) of 200 A/µs, a non-repetitive peak on-state current (IFSM/ITSM) of 30,000 A for 10 ms, and a gate trigger current (Igt) of 250 mA. The thermal resistance junction-to-case (RthJC) is 0.042 K/W, and the maximum operating junction temperature (Tvj) is 125 °C.

SCRs - Modules Feature Summary

• High power density utilizing 70 mm pressure contact technology for efficient heat dissipation.
• Robust surge current capability with high I²t rating for short-circuit protection.
• Low on-state voltage drop to minimize conduction losses in phase control circuits.

SCRs - Modules Applications

• Industrial motor drives and variable speed controls
• High-power DC-DC converters and rectifiers
• HVDC transmission systems

SCRs - Modules Procurement Notes

Verify the complete orderable part number including suffixes such as HPSA2 against official Infineon documentation to ensure correct packing type and moisture protection status. Confirm RoHS compliance and halogen-free status requirements with the manufacturer before ordering. Check lead times as production cycles may vary significantly for this component series.

SCRs - Modules Selection Notes

Select based on required voltage rating of 1800 V and current handling capacity of 800 A. Ensure the cooling system can maintain the junction temperature within the 125 °C limit given the RthJC of 0.042 K/W. Verify that the gate drive circuit can supply the specified 250 mA trigger current. Consider the mechanical constraints of the 70 mm module footprint and screw mounting requirements.

SCRs - Modules Part Context

This component belongs to the TZ800N series of single thyristor modules from Infineon's Power Block lineup. It shares the same 70 mm form factor and core semiconductor characteristics with variants like TZ800N16KOF and TZ800N14KOF, differing primarily in the blocking voltage rating. The HPSA2 suffix indicates specific packaging and environmental compliance attributes defined by Infineon.

SCRs - Modules Replacement Considerations

Direct replacements within the same series include TZ800N16KOF (1600 V) or TZ800N14KOF (1400 V) if lower voltage ratings are acceptable. Cross-series comparison with T880N18TOF is possible but requires evaluation of different packaging (disc vs. module) and current ratings.