Infineon Technologies TT310N20KOFHPSA1

Overview

TT310N20KOFHPSA1 from Infineon Technologies is a phase-control thyristor module rated for 2000 V repetitive peak off-state voltage (V_DRM/V_RRM), 310 A average on-state current (I_TAVM) at T_C = 85 °C, and 10 kA non-repetitive surge current (I_TSM). It features pressure-contact silicon pellet construction with AlN internal isolation, designed for high-power AC line commutated rectification and motor speed control in industrial drive systems.

For engineers reviewing the TT310N20KOFHPSA1 datasheet, TT310N20KOFHPSA1 pinout, TT310N20KOFHPSA1 application, or TT310N20KOFHPSA1 equivalent, key selection criteria include its 0.039 °C/W junction-to-case thermal resistance, 120 A/µs critical di/dt rating, 500 V/µs critical dv/dt capability, and compatibility with forced-air-cooled KM17 heatsinks in B6 six-pulse bridge configurations.

Technical Context

This thyristor module implements a dual-arm, reverse-blocking configuration optimized for line-frequency phase-angle control in medium-voltage industrial power converters. Its design supports natural- and forced-cooling modes, with validated thermal transient impedance Z_thJC data for sinusoidal and rectangular conduction angles (30°–180°).

The device operates with gate trigger current ≤250 mA and holding current ≤300 mA, enabling reliable firing under low-energy gate drive conditions. Its 300 µs circuit-commutated turn-off time (t_q) and 19 mm creepage distance meet IEC 60747-6 requirements for 3.0 kV RMS insulation testing.

Key Specifications

Pinout & Package

TT310N20KOFHPSA1 is housed in a press-pack module package with isolated copper baseplate and M1 mechanical mounting points (6 Nm torque). Electrical terminals are arranged as two independent arms (A1/K1 and A2/K2), each with anode (A), cathode (K), and gate (G) connections conforming to DIN 46244 A standard (2.8 × 0.8 mm² cross-section).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT310N20KOFHPSA1, TT330N18KOFHPSA1 trades 200 V blocking headroom for +20 A average current, while TT420N16KOFHPSA1 sacrifices 400 V rating to achieve +110 A output-making the original optimal for 2000 V-class medium-voltage rectifiers where voltage margin is critical.

Availability

TT310N20KOFHPSA1 is available at Aetrix Electronics and suitable for industrial AC motor drives, medium-voltage rectifier systems, static VAR compensators (SVC), and DC arc furnace controllers requiring stable component supply across multi-year production programs.

Supply support for TT310N20KOFHPSA1 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 electronics, automotive ICs, and industrial control solutions, with core expertise in high-voltage silicon and wide-bandgap devices.

This part belongs to Infineon's "Thyristor Power Modules" product line, engineered specifically for line-commutated, medium-power industrial converters operating at 50/60 Hz with stringent thermal and surge robustness requirements.

FAQ

What gate drive requirements does TT310N20KOFHPSA1 specify?

The device requires a minimum gate trigger current of 1.25 A (peak) with di/dt ≥ 1.25 A/µs and pulse width ≥ 20 µs for guaranteed turn-on. Maximum gate trigger current is 250 mA at 6 V, and non-trigger gate voltage must remain below 0.2 V at 0.5×V_DRM to prevent false firing under high dv/dt conditions.

Can TT310N20KOFHPSA1 be used in parallel configurations?

Yes-its pressure-contact construction and matched dynamic parameters enable direct paralleling of up to four modules per arm without external balancing components. Thermal coupling via shared heatsink and matched gate drive timing (≤100 ns skew) are mandatory to ensure current sharing within ±5% across arms.

What is the maximum allowable case temperature during operation?

The maximum case temperature is 125 °C, corresponding to a maximum junction temperature of 125 °C. At T_C = 85 °C, the module delivers 310 A average current; derating curves show 446 A is permissible only if T_C is maintained at 58 °C using forced-air cooling and low R_thCH interface material.

How is insulation integrity verified for this module?

Each unit undergoes 3.0 kV RMS, 50 Hz, 1-minute insulation test between main terminals and baseplate per IEC 60747-6. The 19 mm creepage distance and AlN ceramic isolation layer ensure compliance with reinforced insulation requirements for Pollution Degree 3 environments in industrial enclosures.