Infineon Technologies STT2200N16P55XPSA1

Overview

STT2200N16P55XPSA1 from Infineon Technologies is a pressure-contact soft starter module integrating two anti-parallel thyristor arms in a single housing, rated for 1600 V repetitive peak off-state voltage (VDRM/VRRM), 2180 A overload current (21 s), and 21 kA non-repetitive surge current (ITSM). It features an integrated optimized heatsink, AMPT construction, and is designed for industrial motor soft-start and bypass switching applications.

For engineers reviewing the STT2200N16P55XPSA1 datasheet, STT2200N16P55XPSA1 pinout, STT2200N16P55XPSA1 application, or STT2200N16P55XPSA1 equivalent, key selection criteria include its 0.24 mΩ slope resistance, 0.9 V threshold voltage, 125 °C max junction temperature, thermal resistance RthJA(21s) = 0.082 K/W, and gate trigger requirements (IGT ≤ 200 mA, VGT ≤ 2 V).

Technical Context

This module implements dual anti-parallel thyristor arms using pressure-contact silicon pellet technology to eliminate wire bonds and enhance thermal cycling reliability. Each arm supports sinusoidal conduction angles up to 180°, with critical di/dt capability of 250 A/µs and dv/dt rating of 1000 V/µs at maximum junction temperature.

It operates with DC or phase-controlled AC loads, requiring gate triggering pulses meeting minimum IGT (200 mA) and VGT (2 V) under specified conditions, and delivers stable on-state performance up to 2000 A with VT ≤ 1.38 V at Tvj = 125 °C.

Key Specifications

Pinout & Package

The STT2200N16P55XPSA1 uses a pressure-contact, double-sided cooled module package with isolated copper baseplate and integrated heatsink. Electrical terminals are M6 screw connections for main power (A1/K1, A2/K2) and DIN 46244 A 2.8 × 0.8 flat contacts for gate control (G1, K1, G2, K2).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar thyristor-based soft starter applications.

Compared with STT2200N16P55XPSA1, the SA2 variant offers marginally improved gate sensitivity but no performance gain in conduction or surge ratings, while the TT2200N16KOF sacrifices thermal integration for flexibility in custom heatsink designs-making SA1 optimal for plug-and-play soft starter modules.

Availability

STT2200N16P55XPSA1 is available at Aetrix Electronics and suitable for motor soft starters, static bypass switches, industrial power controllers, and static transfer switches requiring stable component supply and long-term production continuity.

Supply support for STT2200N16P55XPSA1 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 applications.

This part belongs to Infineon's SITOP Soft Starter Module product line, engineered specifically for high-reliability, medium-power AC motor control and static switching in harsh industrial environments.

FAQ

What is the maximum allowable gate trigger pulse width for STT2200N16P55XPSA1?

The device supports gate trigger pulses up to 10 ms at 40 W peak power (PGM), with derating curves provided for shorter durations: 1 ms at 80 W, 0.5 ms at 100 W, and 0.1 ms at 150 W. Exceeding these limits risks gate junction overheating and permanent degradation. Pulse width must be coordinated with required di/dt and load inductance to ensure reliable turn-on without excessive overshoot.

Can STT2200N16P55XPSA1 operate with forced-air cooling at 5.2 m/s?

Yes - the transient thermal impedance ZthJA data confirms validated performance at v_Air = 5.2 m/s, yielding RthJA(21s) = 0.082 K/W as specified. At this airflow, the module sustains 2180 A overload for 21 s with junction temperature rise ≤179 K (from 40 °C start), staying within the 155 °C post-start limit. Lower airflow requires derating per the ZthJA vs. time curves on page 7.

Is isolation between main terminals and gate terminals certified to industrial standards?

The module meets IEC 60747-6 for isolation, with creepage distance ≥6.3 mm and reinforced insulation structure validated for 3.5 kV RMS test voltage. The pressure-contact baseplate provides galvanic isolation between power and control sides, and the DIN 46244 A gate terminals are physically separated from main terminals by ≥8 mm clearance, satisfying Pollution Degree 2 requirements for industrial enclosures.

Does STT2200N16P55XPSA1 require snubber circuits in typical soft-start applications?

Snubbers are not required for standard motor soft-start operation due to the device's 1000 V/µs dv/dt rating and built-in overvoltage clamping capability. However, snubbers are recommended when switching highly inductive loads (e.g., transformers) or in systems with long cable runs (>10 m), where reflected waves may exceed VRSM (1700 V). RC snubbers sized per Infineon Application Note AN2015-07 reduce turn-off overshoot below 1500 V.