Infineon Technologies TZ630N24KOFHPSA1

Overview

TZ630N24KOFHPSA1 from Semikron is a phase-control thyristor module rated for 2400 V repetitive peak off-state voltage (VDRM/VRRM), 630 A average on-state current (ITAVM) at TC = 85°C, and 1500 A RMS on-state current (ITRMSM), designed for high-power AC line commutated rectification in industrial medium-voltage drive systems.

For engineers reviewing the TZ630N24KOFHPSA1 datasheet, TZ630N24KOFHPSA1 pinout, TZ630N24KOFHPSA1 application, or TZ630N24KOFHPSA1 equivalent, key selection criteria include gate trigger current (≤250 mA), critical dv/dt rating (1000 V/µs), junction-to-case thermal resistance (0.042 °C/W), and forced-cooled six-pulse bridge capability up to 4000 A.

Technical Context

This dual-thyristor B6-bridge module integrates two press-pack silicon elements with AlN ceramic isolation and is configured for line-commutated operation in three-phase controlled rectifiers. It supports 50/60 Hz mains with circuit commutated turn-off time (tq) of 350 µs at Tvj max and requires gate triggering with ≥1 A pulse amplitude and ≥1 A/µs diG/dt to ensure reliable latching (IL ≤ 2500 mA).

The module delivers 2.18 V maximum on-state voltage at 3000 A and 125°C junction temperature, with slope resistance of 0.37 mΩ and threshold voltage of 0.95 V - enabling precise conduction loss modeling in high-current DC link supplies for rolling mills and traction converters.

Key Specifications

Pinout & Package

Package: Press-pack dual-thyristor module with isolated copper baseplate, AlN internal insulation, M1 mechanical mounting (6 Nm), and M2 electrical terminals (18 Nm). Dimensions per datasheet page 3; weight 2750 g; creepage distance 36 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SKKT630/24E and TT630N24KOF, TZ630N24KOFHPSA1 provides superior dv/dt immunity and factory-integrated gate terminals, reducing system-level EMI and simplifying high-reliability B6 bridge assembly in mission-critical industrial rectifiers.

Availability

TZ630N24KOFHPSA1 is available at Aetrix Electronics and suitable for rolling mill DC drives, medium-voltage traction converters, industrial arc furnace supplies, and grid-scale static VAR compensators requiring stable component supply across multi-year production cycles.

Supply support for TZ630N24KOFHPSA1 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, traction, and renewable energy systems since 1951.

This part belongs to the TZ630N series of press-pack thyristor modules engineered specifically for line-commutated, medium-voltage AC/DC conversion in harsh environments with extended thermal cycling requirements.

FAQ

What is the maximum allowable case temperature for continuous operation?

The datasheet specifies TC op from –40°C to +125°C, but maximum allowable case temperature depends on load. At ITAVM = 630 A and TC = 85°C, junction temperature reaches 125°C. For forced cooling with RthCH = 0.01 °C/W and RthCA = 0.03 °C/W, TC must not exceed 95°C to maintain Tvj ≤ 125°C under full load.

Does TZ630N24KOFHPSA1 require external snubbers?

Yes - due to its 1000 V/µs (dvD/dt)cr rating, external RC snubbers are mandatory for reliable operation in circuits with rapid voltage transients. The datasheet recommends snubber design based on actual dv/dt stress measured at the device terminals, especially in B6 configurations with transformer leakage inductance.

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

No - TZ630N24KOFHPSA1 contains two identical, fully controllable thyristors optimized for symmetrical B2/B6 full-wave topologies. Its gate drive design assumes matched triggering timing and equal current sharing; asymmetrical configurations risk thermal imbalance and premature failure.

What is the recommended gate drive waveform for reliable turn-on?

The datasheet specifies iGM ≥ 1 A, diG/dt ≥ 1 A/µs, and tg ≥ 20 µs for guaranteed latching. A practical gate driver delivers a 2–3 A, 5–10 µs rise-time pulse with 50–100 µs duration and <100 ns jitter to ensure simultaneous turn-on of both arms in B6 bridges under all temperature and voltage conditions.