Infineon Technologies TT390N16SOFHPSA1

Overview

TT390N16SOFHPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line commutated switching in industrial drive rectifiers, soft starters, and static power controllers. It delivers 380 A average on-state current (ITAVM) at TC = 85 °C, 1600 V repetitive peak off-state voltage (VDRM/VRRM), and 9500 A non-repetitive surge current (ITSM), operating with electrically insulated baseplate and solder-bond construction for robust thermal cycling in UPS rectifier systems.

For engineers reviewing the TT390N16SOFHPSA1 datasheet, TT390N16SOFHPSA1 pinout, TT390N16SOFHPSA1 application, or TT390N16SOFHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (RthJC = 0.110 K/W), threshold voltage (VT0 = 0.77 V), slope resistance (rT = 0.58 mΩ), critical dv/dt rating (1000 V/µs), and gate trigger current (IGT ≤ 150 mA) under industrial temperature and conduction-angle constraints.

Technical Context

This dual-thyristor module implements line-commutated phase-angle control in high-current AC-DC conversion topologies. Its 140 °C maximum junction temperature, 0.58 mΩ slope resistance, and 100 A/µs critical di/dt support stable conduction during motor-start transients and regenerative braking in 3-phase six-pulse (B6) and 2-pulse (B2) bridge configurations.

The module integrates electrically isolated Al₂O₃ ceramic baseplate and pre-applied TIM option to ensure reliable thermal coupling to heatsinks. Its 3.6 kV insulation test voltage (1 sec, 50 Hz) and 10 mm creepage distance meet IEC61140 Class 1 safety requirements for industrial mains-connected equipment operating across -40 °C to +125 °C ambient range.

Key Specifications

Pinout & Package

TT390N16SOFHPSA1 uses an industrial-standard press-pack-style module package with electrically insulated Al₂O₃ baseplate and 50 mm × 70 mm footprint. Mechanical mounting uses M1 screws (5 Nm torque); electrical terminals use M2 screws (9 Nm torque) with DIN 46244 A 2.8 × 0.8 mm flat blade contacts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TD390N16SOF and TT390N16KOF, TT390N16SOFHPSA1 provides guaranteed TIM integration and certified 3.6 kV isolation-reducing qualification effort for safety-critical UPS and drive applications where baseplate grounding and thermal repeatability are non-negotiable.

Availability

TT390N16SOFHPSA1 is available at Aetrix Electronics and suitable for soft starters, drive rectifiers, and UPS rectifiers requiring stable component supply, long-life thermal cycling performance, and certified isolation integrity in industrial power electronics.

Supply support for TT390N16SOFHPSA1 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

Infineon Technologies is a German semiconductor manufacturer specializing in power semiconductors, microcontrollers, and sensor solutions for industrial, automotive, and energy systems.

This part belongs to Infineon's high-power thyristor module product line, engineered for ruggedized phase-angle control in AC line-commutated converters where reliability, thermal stability, and safety isolation are mission-critical.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum allowable case temperature (TC) is +125 °C, as specified in the operating temperature range. At ITAVM = 380 A and Θ = 180°, the module reaches this limit when RthCA (case-to-ambient) is ≤ 0.110 K/W with TIM applied-requiring active cooling or heatsink design verification per Figure 7 in the datasheet.

Does TT390N16SOFHPSA1 require external snubbers?

Yes-due to its 1000 V/µs critical dv/dt rating, external RC snubbers are required across each thyristor arm to suppress voltage transients during commutation. The recommended snubber values depend on circuit inductance and load type; typical values are 0.1 µF + 22 Ω per arm for B6 rectifier applications.

Can this module be used in asymmetrical half-controlled rectifiers?

Yes-it supports asymmetrical configurations such as half-controlled B2 bridges. Each arm operates independently, allowing one thyristor and one diode per leg. Gate drive must be synchronized to AC phase, and conduction angle control remains valid, though RMS current derating applies per Figure 7 due to harmonic content.

What is the gate drive power requirement for reliable triggering?

Peak gate power must not exceed 120 W for ≤30 µs pulses (per Figure 6). A practical gate driver delivers ≥2 V VGT at ≤150 mA IGT with <2 µs delay (tgd), using isolated pulse transformers or optocoupled drivers rated for ≥5 kV isolation to match the module's 3.6 kV test voltage.