Infineon Technologies TT305N16KOFHPSA1

Overview

TT305N16KOFHPSA1 from Infineon Technologies is a pressure-contact, dual-arm phase-control thyristor module rated for 1600 V repetitive peak off-state voltage (V_DRM/V_RRM), 305 A average on-state current at T_C = 85 °C (I_TAVM), and 9000 A non-repetitive surge current (I_TSM). It features electrically insulated baseplate, 0.58 mΩ slope resistance (r_T), and 0.113 K/W junction-to-case thermal resistance per arm-designed for high-reliability industrial power control in soft starters and UPS rectifiers.

For engineers reviewing the TT305N16KOFHPSA1 datasheet, TT305N16KOFHPSA1 pinout, TT305N16KOFHPSA1 application, or TT305N16KOFHPSA1 equivalent, key selection criteria include validated gate trigger parameters (V_GT ≤ 2.0 V, I_GT ≤ 200 mA), transient thermal impedance Z_thJC profile, crowbar-compatible turn-off time (t_q = 250 µs typ.), and mechanical mounting torque specs (M2 terminals: 12 Nm).

Technical Context

This dual-thyristor module implements phase-angle control in AC line-commutated applications using pressure-contact die attachment for low parasitic inductance and stable thermal performance. Its 130 °C maximum junction temperature (T_{vj max}) and 3.6 kV insulation test voltage (1 sec RMS) support operation in harsh industrial environments with high dv/dt immunity (1000 V/µs critical rate of rise).

The module integrates two independent thyristor arms in an industrial-standard package with electrically isolated AlN-ceramic baseplate. Gate drive requirements are defined by triggering area boundaries (v_G-i_G curves), latching/holding current thresholds (I_L = 1200 mA, I_H = 300 mA), and commutation-safe turn-off timing under specified load conditions (t_q = 250 µs at v_RM = 100 V, -di_T/dt = 10 A/µs).

Key Specifications

Pinout & Package

Package: Industrial-standard dual-thyristor module with electrically insulated AlN ceramic baseplate, 50 mm baseplate width, and M2 terminal screws (12 Nm torque). Dimensions and mounting hole pattern conform to Infineon's standard medium-power thyristor module footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT305N16KOFHPSA1, TT330N16KOF offers +8% current headroom without thermal or mechanical redesign, while TD305N16KOF trades integrated dual-arm functionality for modularity-making the former ideal for upgrade paths and the latter suitable for legacy single-arm designs.

Availability

TT305N16KOFHPSA1 is available at Aetrix Electronics and suitable for soft starters, UPS rectifiers, crowbar protection circuits, and static switches requiring stable component supply across extended production lifecycles.

Supply support for TT305N16KOFHPSA1 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 global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.

This device belongs to Infineon's Advanced Medium Power Thyristor Module (AMPT) product line, engineered for high-reliability phase-angle control in industrial motor drives, power conditioning, and grid-tied energy systems where long-term thermal stability and surge robustness are critical.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum allowable case temperature (T_C) is +130 °C, as defined by the device's thermal derating curve and junction temperature limit of 130 °C. Operation above this temperature violates the absolute maximum rating and risks irreversible degradation of the pressure-contact die interface and AlN insulation layer.

Can TT305N16KOFHPSA1 be used in six-pulse (B6) rectifier configurations?

Yes-each module contains two independent thyristor arms, so three modules configure a full B6 rectifier. The datasheet provides specific ID vs. R_thCA curves for B6 operation, confirming 1400 A output current capability at 0.25 K/W heatsink thermal resistance and ambient temperature ≤40 °C.

What gate drive voltage and current are required for reliable triggering?

Gate trigger voltage must exceed 2.0 V (V_GT max) and gate current must reach ≥200 mA (I_GT max) within 20 µs pulse width. The v_G-i_G characteristic curve (Fig. 6.1) defines the valid triggering region at V_D = 12 V, with latching current I_L = 1200 mA ensuring self-sustaining conduction after gate removal.

Is the baseplate electrically isolated, and what is its insulation rating?

Yes-the baseplate uses aluminum nitride (AlN) ceramic with basic insulation (IEC61140 Class 1) and 3.6 kV RMS insulation test voltage for 1 second. Creepage distance is 17 mm, and the isolation withstands continuous operation up to 130 °C junction temperature without degradation.