Infineon Technologies TT162N14KOFHPSA1

Overview

TT162N14KOFHPSA1 from Semikron is a phase-control thyristor module with dual anti-parallel SCR configuration, rated for 1400 V repetitive peak off-state voltage (VDRM/VRRM), 162 A average on-state current (ITAVM) at TC = 85°C, and 260 A RMS on-state current (ITRMSM). It delivers 1.41 V max on-state voltage at 500 A and operates up to 125°C junction temperature in industrial AC power control applications such as motor speed controllers and heating systems.

For engineers reviewing the TT162N14KOFHPSA1 datasheet, TT162N14KOFHPSA1 pinout, TT162N14KOFHPSA1 application, or TT162N14KOFHPSA1 equivalent, key selection criteria include repetitive voltage rating, thermal resistance (RthJC = 0.096 °C/W per arm), gate trigger parameters (IGT ≤ 150 mA, VGT ≤ 2 V), and forced-air cooling compatibility with TIM interface.

Technical Context

This dual SCR module supports bidirectional phase-controlled AC switching in B2 (two-pulse) and B6 (six-pulse) bridge configurations. Its 150 A/µs critical di/dt and 1000 V/µs critical dv/dt (6th letter F) enable reliable commutation under high-frequency line transients and inductive load conditions.

The module integrates AlN ceramic isolation and pressure-contact silicon pellets, with specified transient thermal impedance ZthJC and ZthCA curves for both natural and forced cooling (e.g., Papst 4650N fan). RthCH with TIM is 0.03 °C/W per module, enabling high-power density mounting on heatsinks like KM17.

Key Specifications

Pinout & Package

TT162N14KOFHPSA1 uses a press-pack module package with isolated copper baseplate and integrated AlN ceramic insulation. Mechanical terminals follow DIN 46244 A standard (2.8 × 0.8 mm flat contacts), with M1 and M2 mounting torques of 6 Nm ±15% and 6 Nm ±10%, respectively.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SKKT 162/14, TT162N14KOFHPSA1 offers lower thermal resistance with TIM and tighter dv/dt specs; versus TT162N16KOFHPSA1, it trades 200 V voltage headroom for optimized thermal performance in standard 690 VAC industrial systems.

Availability

TT162N14KOFHPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, resistive heating control, DC power supply rectifiers, and static VAR compensators requiring stable component supply across multi-year production cycles.

Supply support for TT162N14KOFHPSA1 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, energy, and traction applications.

This part belongs to the TT162N series of phase-control thyristor modules, engineered for robust AC power regulation in harsh environments with extended thermal cycling life and high dv/dt immunity.

FAQ

What is the recommended heatsink mounting procedure for TT162N14KOFHPSA1?

Mount using M1 mechanical screws at 6 Nm ±15% torque and M2 electrical terminals at 6 Nm ±10%. Apply thermal interface material (TIM) uniformly between the copper baseplate and heatsink surface. Use KM17-type heatsinks with Papst 4650N forced-air cooling for full 162 A ITAVM rating. Avoid uneven pressure or particle contamination under the baseplate.

Does TT162N14KOFHPSA1 require snubber circuits in B6 rectifier applications?

No snubber is required if the line dv/dt remains below 1000 V/µs and commutation is supported by sufficient reactive energy. The module's 1000 V/µs critical dv/dt rating and 200 µs tq enable snubberless operation in standard six-pulse bridges with line inductance ≥20 µH. Verify actual dv/dt at the module terminals under worst-case fault conditions.

How does the gate drive requirement differ between G1 and G2 terminals?

G1 and G2 are electrically isolated gate inputs for independent SCRs. Each requires ≤150 mA peak trigger current and ≤2 V gate voltage at 6 V anode-cathode voltage. Drive circuits must provide ≥0.6 A/µs diG/dt and maintain <0.25 V non-trigger voltage under 0.5×VDRM blocking conditions. No shared gate drive is permitted due to internal isolation.

Can TT162N14KOFHPSA1 be used in natural convection cooling?

Yes, but only at derated current: maximum ITAVM drops to ~95 A at TC = 85°C with natural cooling and KM17 heatsink (45 W rating). Forced-air cooling (e.g., Papst 4650N) is required to achieve full 162 A rating. Thermal simulation using provided ZthJC and ZthCA curves is mandatory for natural-convection designs.