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Home > Products > Discrete Semiconductor Products > Thyristors > SCRs - Modules

Infineon Technologies T1190N18TOFVTXPSA1

Name: T1190N18TOFVTXPSA1
Brand: Infineon Technologies
SKU: T1190N18TOFVTXPSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: T1190N18TOFVTXPSA1

Manufacturer:: Infineon Technologies

Category:: SCRs - Modules

Package:: TO-200AC

Datasheet:: T1190N18TOFVTXPSA1.pdf

Description:: SCR MODULE 1800V 2800A DO200AC

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Product details

Overview

T1190N18TOFVTXPSA1 from Infineon Technologies is a high-power phase-control thyristor designed for industrial AC power regulation in medium- to high-voltage line-commutated converters. It delivers 1190 A average on-state current at 85 °C case temperature, 1800 V repetitive peak off-state voltage (VDRM/VRRM), and 25.5 kA non-repetitive surge current (ITSM), enabling robust operation in HVDC converter valves and traction rectifiers.

For engineers reviewing the T1190N18TOFVTXPSA1 datasheet, T1190N18TOFVTXPSA1 pinout, T1190N18TOFVTXPSA1 application, or T1190N18TOFVTXPSA1 equivalent, key selection criteria include gate trigger current (≤250 mA), critical dv/dt rating (1000 V/µs), junction-to-case thermal resistance (0.023 °C/W two-sided), and 125 °C maximum junction temperature under forced-cooled conditions.

Technical Context

This thyristor operates in natural commutation mode with line-synchronized gate triggering, supporting phase-angle control in 50/60 Hz AC systems. Its 200 A/µs critical di/dt and 1000 V/µs critical dv/dt ensure reliable turn-on and noise-immune blocking during high-di/dt transients in transformer-fed rectifiers.

The device uses pressure-contact silicon pellet construction with dual cooling interfaces (anode and cathode), enabling bidirectional heat extraction. Its analytical thermal impedance model (ZthJC) supports transient thermal design for pulsed conduction angles from 30° to 180°, validated per DIN IEC 60747-6.

Key Specifications

Parameter	Value and Actual Design Meaning
VDRM / VRRM	1800 V - Sustains full AC line voltage peaks in 1 kV-class industrial drives and HVDC valve stacks.
ITAVM (TC = 85 °C)	1190 A - Continuous DC output current capability with two-sided heatsink cooling at rated case temperature.
ITSM (10 ms)	25500 A - Withstands short-circuit fault currents in grid-tied rectifier bridges without latch-up.
(dv/dt)cr	1000 V/µs - Immune to voltage transients induced by fast-switching adjacent IGBTs in hybrid converter topologies.
RthJC (two-sided)	0.023 °C/W - Enables <1.5 °C junction-to-case rise at 2770 A RMS, critical for thermal stability in sealed converter cabinets.
vT (iT = 5.4 kA)	2.05 V - Low conduction loss yields ≤1.1 kW on-state dissipation at full RMS current, reducing heatsink mass.
tq (commutated turn-off)	240 µs typ. - Supports reliable commutation in 50 Hz line-commutated inverters with passive snubbers.

Pinout & Package

Package: TO-240AA (isolated double-side cooled press-pack thyristor with anode/cathode mounting surfaces and flat gate terminal). Mechanical outline per Infineon Annex Page 3; clamping force 16–32 kN.

Pin/Terminal	Circuit Role	Design Meaning
Anode (1)	Main current entry point under forward bias	High-current copper interface; requires direct thermal contact to heatsink for bidirectional cooling path.
Cathode (2)	Main current exit point under forward bias	Electrically isolated metal surface; serves as second thermal interface and return path for gate drive reference.
Gate (4)	Control electrode for turn-on initiation	Flat tab terminal (2.8 × 0.5 mm); accepts low-energy pulse (≤250 mA, ≤2 V) synchronized to AC voltage zero-crossing.
Auxiliary Cathode (5)	Secondary cathode connection for gate return path	Ensures low-inductance gate loop closure; mandatory for stable triggering under high di/dt conditions.

Key Features

Feature	Design Value
Pressure-contact Si pellet	Eliminates wire bonds and solder layers, enabling >25 kA surge current handling and 10⁶-cycle thermal cycling reliability.
Two-sided cooling interface	Reduces total thermal resistance by 35% vs. single-sided packages, allowing 20% higher ITAV at same TC.
125 °C max junction temperature	Permits operation in ambient environments up to 70 °C with derating, suitable for enclosed railway traction converters.
Gate non-trigger voltage ≤0.2 V	Prevents false turn-on from EMI coupling in high-noise industrial motor drive cabinets.
On-state characteristic modeling (A–D coefficients)	Enables precise conduction loss calculation across 300–6000 A range using vT = A + B·iT + C·ln(iT) + D·iT².

Applications

Industrial HVDC Converter Valves

Railway Traction Rectifiers

Use Scenario: Line-commutated conversion of 25 kV AC catenary supply to regulated DC for asynchronous traction motors.

IC Role / Device Role / Timing Role: Main power switching element in 6-pulse bridge; triggered at programmable firing angle to control DC output voltage.

Use Value: 1800 V VDRM withstands transient overvoltages from pantograph arcing; 25.5 kA ITSM clears short-circuit faults without replacement.

Use Scenario: Regenerative braking energy feedback into AC supply via inverter-thyristor hybrid topology.

IC Role / Device Role / Timing Role: Bidirectional line-commutated switch in auxiliary converter stage; conducts during motoring, blocks during regeneration.

Use Value: 1000 V/µs (dv/dt)cr prevents spurious turn-on from inverter-side voltage spikes; 240 µs tq enables clean commutation at 50 Hz.

Medium-Voltage Motor Drives

Static VAR Compensators (SVC)

Use Scenario: Phase-controlled rectification in 6.6 kV adjustable-speed drives for mining conveyor systems.

IC Role / Device Role / Timing Role: Primary rectifying thyristor in series-stacked modules; gated synchronously with line voltage zero-crossings.

Use Value: 0.023 °C/W RthJC allows air-cooled heatsinks at 1190 A ITAV; pressure-contact construction ensures long-term bond integrity under vibration.

Use Scenario: Thyristor-Controlled Reactor (TCR) branch in utility-scale reactive power compensation systems.

IC Role / Device Role / Timing Role: Fast-turn-on switch controlling fundamental-frequency current in shunt reactor banks.

Use Value: 200 A/µs (di/dt)cr supports rapid current ramp-up for dynamic VAR response; 150 mA leakage current ensures low standby losses.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TT1190N18KOF	Same VDRM (1800 V) and ITAVM (1190 A), but TO-240AA package with round gate terminal (AMP 60598 compliant) instead of flat gate.	Requires different gate driver connector; identical thermal and electrical performance in forced-air cooled SVC installations.	Select when legacy gate driver hardware uses round-pin mating connectors.
T1220N18TOFVTXPSA1	Higher ITAVM (1220 A at 85 °C), same VDRM (1800 V), identical package and pinout; 0.022 °C/W RthJC (two-sided).	Direct upgrade path for designs needing 2.5% higher continuous current without layout change.	Choose for new designs targeting margin improvement or extended lifetime under thermal stress.

Compared with TT1190N18KOF, T1190N18TOFVTXPSA1 offers plug-compatible flat-gate integration; versus T1220N18TOFVTXPSA1, it trades 30 A ITAVM for proven field reliability in legacy traction deployments where derating is already applied.

Availability

T1190N18TOFVTXPSA1 is available at Aetrix Electronics and suitable for industrial HVDC converter valves, railway traction rectifiers, and medium-voltage motor drives requiring stable component supply across multi-year production cycles.

Supply support for T1190N18TOFVTXPSA1 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 infrastructure markets.

This thyristor belongs to Infineon's "Netz-Thyristor" product line, engineered specifically for high-reliability, high-current phase-control applications in utility-scale power conversion and rail traction systems.

FAQ

What is the recommended gate drive circuit for T1190N18TOFVTXPSA1?

A pulse-transformer-isolated gate driver delivering ≥1 A peak current, 2 V gate voltage, and ≤4 µs delay is required. The gate must be referenced to the auxiliary cathode (Pin 5) to minimize loop inductance. Gate resistor value should limit di/dt to ≤200 A/µs during turn-on, per datasheet test condition.

Can T1190N18TOFVTXPSA1 be used in forced-air cooled applications?

Yes, but only with verified two-sided airflow across both anode and cathode surfaces. Thermal simulation must confirm case temperature remains ≤85 °C at 1190 A ITAV with 180° conduction angle. Single-sided cooling reduces ITAVM to 1020 A and is not recommended for continuous operation.

What is the meaning of the 'F' and 'O' letters in the part number T1190N18TOFVTXPSA1?

The 'F' denotes 1000 V/µs critical dv/dt rating; the 'O' indicates 240 µs typical commutated turn-off time (tq). These suffixes align with Infineon's standardized thyristor coding: F = dv/dt grade, O = tq grade, confirming compliance with DIN IEC 60747-6 timing specifications.

How does the auxiliary cathode (Pin 5) function in the gate drive loop?

The auxiliary cathode provides a dedicated low-inductance return path for gate current, decoupling it from main cathode current transients. This prevents gate voltage distortion during high di/dt events and ensures consistent triggering even when main cathode potential swings rapidly during commutation.

T1190N18TOFVTXPSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: TO-200AC

Packaging:: Tray

Product Status:: Active

Structure:: Single

Number of SCRs, Diodes:: 1 SCR

Voltage - Off State:: 1.8 kV

Current - On State (It (AV)) (Max):: 1190 A

Current - On State (It (RMS)) (Max):: 2800 A

Voltage - Gate Trigger (Vgt) (Max):: 2 V

Current - Gate Trigger (Igt) (Max):: 250 mA

Current - Non Rep. Surge 50, 60Hz (Itsm):: 25500A @ 50Hz

Current - Hold (Ih) (Max):: 500 mA

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Clamp On

T1190N18TOFVTXPSA1 FAQ

1.How can I place an order for T1190N18TOFVTXPSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for T1190N18TOFVTXPSA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for T1190N18TOFVTXPSA1 reliable?

The price and inventory of T1190N18TOFVTXPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T1190N18TOFVTXPSA1 is usually 5 days.

3.What payment methods are accepted for T1190N18TOFVTXPSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T1190N18TOFVTXPSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for T1190N18TOFVTXPSA1?

T1190N18TOFVTXPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your T1190N18TOFVTXPSA1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for T1190N18TOFVTXPSA1?

For technical support, including T1190N18TOFVTXPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T1190N18TOFVTXPSA1 requirements.

6.How does Aetrix verify that T1190N18TOFVTXPSA1 is sourced from the original manufacturer or authorized distributors?

All T1190N18TOFVTXPSA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that T1190N18TOFVTXPSA1 meets industry standards.

7.What is the process for return or replacement of T1190N18TOFVTXPSA1?

All T1190N18TOFVTXPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with T1190N18TOFVTXPSA1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The T1190N18TOFVTXPSA1 part is unused and in its original packaging.

Return procedure for T1190N18TOFVTXPSA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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