Infineon Technologies DT92N12KOFHPSA1

Overview

DT92N12KOFHPSA1 from Semikron is a phase-control thyristor module with dual anti-parallel thyristor configuration in a press-pack package, rated for 1200 V repetitive peak off-state voltage (VDRM/VRRM), 92 A average on-state current (ITAVM) at TC = 85°C, and 160 A RMS on-state current (ITRMSM). It delivers 1.62 V max on-state voltage at 300 A and 130 °C junction temperature, and is engineered for industrial AC power control in motor drives and heating systems.

For engineers reviewing the DT92N12KOFHPSA1 datasheet, DT92N12KOFHPSA1 pinout, DT92N12KOFHPSA1 application, or DT92N12KOFHPSA1 equivalent, key selection criteria include gate trigger current (≤120 mA), critical dv/dt rating (1000 V/µs), commutated turn-off time (150 µs typ.), and thermal resistance (0.175 °C/W junction-to-case per module).

Technical Context

This dual-thyristor module implements a B6 (six-pulse) bridge-compatible topology with pressure-contact silicon pellets and aluminum nitride (AlN) internal isolation. Its gate control requires ≤1.4 V trigger voltage and sustains non-trigger conditions up to 0.2 V gate-to-cathode voltage under 0.5×VDRM.

The device supports natural or forced cooling with validated thermal impedance models for sinusoidal and rectangular conduction angles (0°–180°). Its 150 µs typical turn-off time (tq) and 150 A/µs critical di/dt rating enable reliable commutation in line-commutated inverters and soft-start circuits.

Key Specifications

Pinout & Package

DT92N12KOFHPSA1 uses a press-pack (FHPSA1) housing with two isolated thyristor arms sharing a common heatsink interface. Terminals are mechanically secured via M2 screws (4 Nm torque) and conform to DIN 46244 A standard (2.8 × 0.8 mm flat control terminals).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar phase-control thyristor module applications.

Compared with SKKT 92/12 E and TT92N12KOFHPSA1, DT92N12KOFHPSA1 provides superior thermal performance (0.175 vs. 0.195 °C/W) and integrated anti-parallel functionality-reducing PCB area by 35% and eliminating inter-module timing skew in AC phase control.

Availability

DT92N12KOFHPSA1 is available at Aetrix Electronics and suitable for industrial motor soft-start, AC resistance heating control, DC traction converter pre-charge, and medium-voltage UPS rectifier applications requiring stable component supply and long-term lifecycle support.

Supply support for DT92N12KOFHPSA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Semikron is a German manufacturer specializing in power semiconductor modules, known for high-reliability solutions in industrial, energy, and transportation markets since 1951.

DT92N12KOFHPSA1 belongs to Semikron's Netz-Thyristor-Modul series, designed specifically for robust, maintenance-free phase-angle control in harsh industrial environments with wide ambient temperature ranges (−40 °C to +130 °C).

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum allowable case temperature (TC op) is +130 °C, verified per the datasheet's thermal derating curves. At this temperature, the device sustains 92 A average on-state current (ITAVM) with sinusoidal conduction at 180°. Exceeding this limit risks accelerated parameter drift and irreversible junction damage.

Does DT92N12KOFHPSA1 require a heatsink? If so, what thermal resistance is recommended?

Yes - mandatory heatsinking is required. For natural cooling, a heatsink with RthCA ≤ 0.30 °C/W is needed to maintain TC ≤ 85 °C at 92 A ITAVM. With forced air (Papst 4650N fan), RthCA ≤ 0.58 °C/W suffices. The module's 0.05 °C/W case-to-heatsink resistance (RthCH) assumes proper mounting torque (4 Nm) and thermal interface material.

Can DT92N12KOFHPSA1 be used in a single-phase full-wave rectifier configuration?

Yes - its dual anti-parallel thyristor structure supports single-phase full-wave (B2) rectification. The datasheet confirms B2 bridge operation with up to 200 A output current at TA = 25 °C and RthCA = 0.15 °C/W. Gate timing must ensure non-overlapping firing pulses to prevent shoot-through.

What is the gate drive requirement for reliable turn-on at −40 °C ambient?

At −40 °C, gate trigger current (IGT) rises to ≤120 mA (max), and gate trigger voltage (VGT) remains ≤1.4 V. A gate drive delivering ≥1.5× IGT (i.e., ≥180 mA) with ≥2 V open-circuit voltage ensures robust turn-on across temperature, accounting for gate circuit resistance and temperature-induced threshold shift.