Infineon Technologies TT700N22KOFXPSA1

Overview

TT700N22KOFXPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line switching and rectification in industrial power electronics. It delivers 700 A average on-state current (ITAVM) at TC = 85°C, 2200 V repetitive peak off-state voltage (VDRM/VRRM), and features pressure-contact silicon die construction with electrically insulated baseplate. It is deployed in soft starters, UPS rectifiers, and static bypass switches where robust surge handling (ITSM = 20.4 kA) and thermal stability are critical.

For engineers reviewing the TT700N22KOFXPSA1 datasheet, TT700N22KOFXPSA1 pinout, TT700N22KOFXPSA1 application, or TT700N22KOFXPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (RthJC = 0.046 K/W), gate trigger characteristics (IGT ≤ 250 mA, VGT ≤ 2.2 V), critical dv/dt rating (1000 V/µs), and isolation test voltage (3.6 kV for 1 sec).

Technical Context

This dual-thyristor, press-pack module operates in phase-controlled AC applications requiring precise conduction-angle regulation and high di/dt immunity. Its 200 A/µs critical rate of rise of on-state current (diT/dt)cr and 1000 V/µs (dvD/dt)cr support reliable commutation in inductive drive circuits and crowbar protection systems.

The module integrates two anti-parallel thyristor chips per arm in an industrial-standard 60 mm baseplate package with AlN ceramic insulation. Its on-state characteristic follows a four-parameter temperature-dependent model (A–D coefficients provided), enabling accurate loss calculation across operating temperatures from –40°C to +135°C.

Key Specifications

Pinout & Package

TT700N22KOFXPSA1 is a dual-thyristor press-pack module housed in an industrial-standard 60 mm baseplate package with electrically insulated AlN ceramic substrate. Mechanical mounting uses M1 screws (6 Nm torque); electrical terminals use M2 screws (12 Nm torque) with DIN 46244 A 2.8 × 0.8 mm² control terminal geometry.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TD700N22KOF and TT900N22KOF, TT700N22KOFXPSA1 uniquely balances insulated-base reliability, standardized 60 mm mounting, and optimal gate drive compatibility for mid-range industrial drives-making it the default choice for new soft starter and UPS rectifier designs where safety certification and thermal predictability are prioritized.

Availability

TT700N22KOFXPSA1 is available at Aetrix Electronics and suitable for soft starters, UPS rectifiers, crowbar protection circuits, and static bypass switches requiring stable component supply, long-lifecycle assurance, and traceable industrial-grade sourcing.

Supply support for TT700N22KOFXPSA1 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 semiconductors, microcontrollers, and sensor solutions for industrial, automotive, and energy systems.

This part belongs to Infineon's High-Power Thyristor Module product line, engineered for ruggedized phase-angle control in medium-voltage industrial motor drives, power conditioning, and grid-tied protection systems.

FAQ

What is the maximum allowable junction temperature for TT700N22KOFXPSA1?

The maximum junction temperature (Tvj max) is 135°C, validated across all operating conditions including surge events. This rating is maintained under worst-case thermal conditions (RthJC = 0.046 K/W, RthCH = 0.02 K/W) and defines the upper limit for safe conduction loss calculation and thermal derating curves in datasheet Figure 7.

Does TT700N22KOFXPSA1 require external snubbers in standard B6 rectifier applications?

Yes - due to its (dvD/dt)cr rating of 1000 V/µs, external RC snubbers are required for inductive loads or long cable runs. The datasheet specifies minimum snubber parameters (e.g., 0.1 µF + 22 Ω per arm) to suppress voltage overshoot during commutation, especially at 50/60 Hz line frequencies with 120° conduction angles.

Can TT700N22KOFXPSA1 be used in parallel configurations?

No - this module is not characterized or qualified for paralleling. Its pressure-contact design and gate threshold variation (VGT max = 2.2 V) make current sharing unreliable without active gate control and matched dynamic characteristics. Parallel operation requires discrete thyristors with explicit balancing networks or dedicated paralleled modules like the TT1200N22KOF series.

What is the creepage distance and why does it matter for safety certification?

The creepage distance is 19 mm between main terminals and baseplate, satisfying IEC 61800-5-1 and UL 508A requirements for Pollution Degree 2 environments. This value directly determines minimum PCB spacing, enclosure cutout dimensions, and isolation barrier design in certified industrial drives and UPS systems.