Infineon Technologies TZ500N16KOFHPSA1

Overview

TZ500N16KOFHPSA1 from Semikron is a phase-control thyristor module rated for 1600 V repetitive peak off-state voltage (VDRM/VRRM), 500 A average on-state current (ITAVM) at TC = 85°C, and 1050 A RMS on-state current (ITRMSM), designed for high-power AC line-commutated rectification in industrial motor drives and medium-voltage DC power supplies.

For engineers reviewing the TZ500N16KOFHPSA1 datasheet, TZ500N16KOFHPSA1 pinout, TZ500N16KOFHPSA1 application, or TZ500N16KOFHPSA1 equivalent, key selection criteria include its 125°C maximum junction temperature, 0.065°C/W junction-to-case thermal resistance, 200 A/µs critical di/dt rating, and pressure-contact Si pellet construction with AlN isolation - all critical for reliable forced-air-cooled B6 bridge operation.

Technical Context

This dual-thyristor module implements a back-to-back (anti-parallel) configuration suitable for full-wave AC phase control and rectification. It supports line-commutated turn-off with tq = 250 µs typical and requires gate trigger current ≤250 mA at 2.2 V max to initiate conduction.

Designed for B2 (two-pulse) and B6 (six-pulse) bridge topologies, it delivers up to 1400 A output current under forced cooling (RthCA = 0.015°C/W) and withstands non-repetitive surge currents of 17 kA (10 ms, Tvj = 25°C), making it suitable for high-inertia load starting and regenerative braking circuits.

Key Specifications

Pinout & Package

Package: SKiiP® 3-phase thyristor module in insulated press-pack housing with AlN ceramic baseplate, M1 mounting screws (5 Nm), and M2 terminal bolts (12 Nm); weight 900 g; creepage distance 15 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SKKT 500/16 E and TT500N16KOF, TZ500N16KOFHPSA1 offers superior surge energy handling and lower thermal resistance, making it preferred for mission-critical industrial rectifiers where long-term reliability under transient overload is mandatory.

Availability

TZ500N16KOFHPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, electroplating rectifiers, regenerative braking systems, and high-power UPS rectifier stages requiring stable component supply and long lifecycle support.

Supply support for TZ500N16KOFHPSA1 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 power semiconductor manufacturer specializing in high-reliability modules for industrial, renewable energy, and traction applications since 1951.

TZ500N16KOFHPSA1 belongs to the SKiiP® thyristor module family, engineered specifically for ruggedized, maintenance-free AC/DC conversion in harsh industrial environments with ambient temperatures up to 60°C and vibration exposure.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum case temperature TC is not fixed but depends on ITAVM and conduction angle. At ITAVM = 500 A and Θ = 180°, TC must not exceed 85°C per datasheet derating curves. With forced cooling (RthCA = 0.015°C/W), TC reaches 140°C only at ITAVM = 1400 A - exceeding rated limits. Operation must stay within published TC vs. ITAVM graphs on pages 7–8 of the datasheet.

Can TZ500N16KOFHPSA1 be used in parallel configurations?

Yes, but only with active current balancing. The module's 0.27 mΩ slope resistance and matched vT characteristics enable stable parallel operation when gate drive timing is synchronized within ±0.5 µs and thermal coupling is uniform. External ballast resistors are not recommended due to added conduction loss.

What gate drive voltage and current are required for reliable turn-on?

A minimum gate trigger current of 250 mA at ≤2.2 V (VGT max) is required at 25°C. For reliable operation across temperature (-40°C to +125°C), gate pulses must deliver ≥400 mA peak into ≤10 Ω source impedance, with ≥20 µs pulse width and diG/dt ≥1 A/µs to ensure latching at IL = 1500 mA.

Is the module certified for isolation safety standards?

Yes - it meets IEC 60747-5-1 for semiconductor devices and achieves 3.6 kV RMS insulation test voltage (1 sec, 50 Hz), qualifying for reinforced insulation in systems up to 1000 VAC working voltage per IEC 61800-5-1 and UL 61800-5-1.