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

Infineon Technologies T1500N12TOFVTXPSA1

Name: T1500N12TOFVTXPSA1
Brand: Infineon Technologies
SKU: T1500N12TOFVTXPSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: T1500N12TOFVTXPSA1

Manufacturer:: Infineon Technologies

Category:: SCRs - Modules

Package:: DO-200AB, B-PUK

Datasheet:: T1500N12TOFVTXPSA1.pdf

Description:: SCR MODULE 1800V 3500A DO200AC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

T1500N12TOFVTXPSA1 from Infineon Technologies is a high-power phase-control thyristor designed for industrial AC power regulation in medium- to high-voltage rectifier and converter systems. It delivers 1500 A average on-state current at 85 °C case temperature, supports 1200 V repetitive peak off-state voltage (V_DRM/V_RRM), and withstands 39 kA non-repetitive surge current (I_TSM) at 25 °C - enabling use in 3-phase line-commutated rectifiers for steel mill drives and HVDC converter valves.

For engineers reviewing the T1500N12TOFVTXPSA1 datasheet, T1500N12TOFVTXPSA1 pinout, T1500N12TOFVTXPSA1 application, or T1500N12TOFVTXPSA1 equivalent, key selection criteria include verified gate trigger current (≤250 mA), critical dv/dt rating (1000 V/µs), junction-to-case thermal resistance (0.0170 °C/W two-sided), and validated commutation turn-off time (240 µs typical).

Technical Context

This thyristor operates as a line-commutated, gate-controlled switch in phase-angle controlled rectification circuits. Its design centers on high-current conduction (IT_AVM = 1500 A @ TC = 85 °C) and robust transient overvoltage immunity (V_DSM = 1200 V, V_RSM = 1300 V), with a low slope resistance (r_T = 0.15 mΩ) ensuring minimal on-state losses at rated current.

It features a pressure-contact silicon pellet construction requiring precise clamping force (24–56 kN) and dual-sided heatsinking. The device's 240 µs circuit commutated turn-off time (t_q) and 200 A/µs critical di/dt rating support reliable forced commutation in high-power inverters and cycloconverters operating at 50 Hz.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DRM/V_RRM	1200 V - maximum repetitive forward/reverse blocking voltage at full junction temperature; defines usable AC line voltage range up to 850 V RMS.
I_TAVM @ T_C = 85 °C	1500 A - continuous average on-state current under two-sided cooling; sets base rating for industrial rectifier sizing.
I_TSM (10 ms)	39 kA - non-repetitive surge current capability at 25 °C; determines short-circuit withstand in faulted 3-phase systems.
(dv/dt)_cr	1000 V/µs - minimum rate of rise of off-state voltage before spurious turn-on; enables stable operation with fast-switching line transients.
R_thJC (two-sided)	0.0170 °C/W - thermal resistance from junction to case under optimal dual-sided heatsinking; directly impacts maximum allowable power loss (PT_AV ≤ 25.5 kW).
t_q (typ.)	240 µs - circuit commutated turn-off time at full rated current; constrains minimum commutation interval in cycloconverter topologies.
V_T @ 7 kA	2.10 V - on-state voltage drop at peak conduction; used to calculate conduction losses in high-current DC link applications.

Pinout & Package

Package: TO-240AA (isolated press-pack thyristor with anode/cathode/gate terminals and auxiliary cathode). Requires mechanical clamping between copper heatsinks; no solderable leads.

Pin/Terminal	Circuit Role	Design Meaning
Anode (1)	Main current entry terminal	High-current path into silicon pellet; must be bolted to heatsink with 24–56 kN clamping force for thermal and electrical integrity.
Cathode (2)	Main current exit terminal	Primary return path; electrically isolated from heatsink unless explicitly grounded per system layout.
Gate (4)	Control input for triggering	Low-energy pulse input (≤250 mA, ≤2 V); requires isolated gate driver with <4 µs delay to ensure synchronized firing.
Auxiliary Cathode (5)	Secondary cathode connection	Enables Kelvin-sense configuration for accurate gate current monitoring and dynamic parameter validation during commissioning.

Key Features

Feature	Design Value
Pressure-contact Si pellet	Enables scalable current handling (up to 3500 A RMS) without wire bonds; eliminates bond-wire failure modes in high-thermal-cycle environments.
Two-sided thermal interface	0.0170 °C/W R_thJC allows >25 kW dissipation with <43 °C junction-to-case delta at full load - critical for unventilated industrial enclosures.
High dv/dt immunity	1000 V/µs critical rate ensures immunity to line-side switching transients in 10 kV-class distribution substations without snubber networks.
Low on-state slope resistance	0.15 mΩ r_T reduces conduction loss by ~18% versus comparable 1200 V thyristors, lowering cooling requirements in multi-thyristor stacks.
Validated commutation performance	240 µs t_q at full current enables reliable 50 Hz forced commutation in 6-pulse cycloconverters with fixed extinction angles ≥30°.

Applications

Industrial Rectifier Systems

Medium-Voltage Drive Converters

Use Scenario: 3-phase, 6-pulse line-commutated rectifier supplying DC bus for rolling mill main drives.

IC Role / Device Role / Timing Role: Main power switch in phase-controlled rectifier bridge; triggered at adjustable firing angle to regulate output DC voltage.

Use Value: 1500 A average current rating and 39 kA surge capacity sustain continuous operation under motor stall and short-circuit conditions.

Use Scenario: Cycloconverter-based AC drive for large synchronous motors in mining conveyor systems.

IC Role / Device Role / Timing Role: Bidirectional power switch in anti-parallel thyristor pairs; commutated via auxiliary circuits at line frequency zero-crossings.

Use Value: 240 µs turn-off time and 200 A/µs di/dt rating ensure reliable commutation at 50 Hz with extinction margin >100 µs.

HVDC Converter Valves

Static VAR Compensator (SVC) Thyristor Bridges

Use Scenario: Valve group in ±500 kV LCC-HVDC transmission system using 12-pulse configuration.

IC Role / Device Role / Timing Role: High-voltage series stack element; blocks reverse voltage during half-cycle and conducts forward current during conduction period.

Use Value: 1200 V V_DRM and 1300 V V_RSM support 12-pulse operation with 15% voltage margin against lightning surges.

Use Scenario: TCR (Thyristor-Controlled Reactor) module in utility-scale reactive power compensation for arc furnace loads.

IC Role / Device Role / Timing Role: Phase-angle controlled reactor switch; fired asymmetrically to generate controllable reactive current injection.

Use Value: Low 0.15 mΩ slope resistance minimizes harmonic generation and thermal stress during partial-conduction operation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TT1500N12KOF	Same V_DRM (1200 V), lower I_TAVM (1250 A @ 85 °C), higher R_thJC (0.020 °C/W), no auxiliary cathode.	Limited to lower-duty-cycle applications; unsuitable for continuous 1500 A operation or precision gate current sensing.	Select when cost sensitivity outweighs thermal margin and diagnostic capability requirements.
T1600N12TOFVTXPSA1	Higher V_DRM (1200 V same), increased I_TAVM (1600 A @ 85 °C), identical package and thermal metrics.	Supports higher overload margins in new designs but requires revalidation of gate drive energy and heatsink pressure profile.	Choose for future-proofing or where 6.7% higher average current headroom justifies minor BOM change.

Compared with TT1500N12KOF, T1500N12TOFVTXPSA1 provides 20% higher thermal current rating and integrated auxiliary cathode for diagnostics; versus T1600N12TOFVTXPSA1, it offers proven field reliability at slightly lower cost without sacrificing package compatibility or thermal performance.

Availability

T1500N12TOFVTXPSA1 is available at Aetrix Electronics and suitable for industrial rectifier systems, medium-voltage drive converters, and static VAR compensator (SVC) thyristor bridges requiring stable component supply across multi-year production cycles.

Supply support for T1500N12TOFVTXPSA1 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 automotive ICs, with global manufacturing and R&D infrastructure.

This device belongs to Infineon's "Netz-Thyristor" high-power thyristor product line, engineered specifically for grid-connected industrial power conversion - emphasizing ruggedness, thermal stability, and long-term reliability in harsh electrical environments.

FAQ

What is the required gate trigger current for reliable turn-on?

The maximum gate trigger current is 250 mA at 25 °C with 12 V anode-cathode voltage. Reliable firing requires a pulse with ≥1 A peak current and ≥1 µs width to overcome temperature-dependent threshold variation, especially at junction temperatures near 125 °C.

Can this thyristor be used in forced-commutated inverters?

No - it is optimized for line-commutated operation only. Its 240 µs turn-off time (t_q) and absence of gate turn-off capability make it unsuitable for self-commutated inverters; use GTOs or IGCTs for forced commutation above 500 A.

What clamping force is required for thermal performance?

A mechanical clamping force of 24–56 kN must be applied uniformly across the anode and cathode faces. Deviation outside this range increases R_thJC beyond 0.0170 °C/W and risks interfacial arcing or thermal runaway under full-load operation.

Is auxiliary cathode connection mandatory?

No - the auxiliary cathode (terminal 5) is optional and used only for gate current measurement or dynamic parameter verification. Standard operation uses only anode (1), cathode (2), and gate (4); leaving terminal 5 unconnected has no functional impact.

T1500N12TOFVTXPSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: DO-200AB, B-PUK

Packaging:: Tray

Product Status:: Obsolete

Structure:: Single

Number of SCRs, Diodes:: 1 SCR

Voltage - Off State:: 1.8 kV

Current - On State (It (AV)) (Max):: 1500 A

Current - On State (It (RMS)) (Max):: 3500 A

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

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

Current - Non Rep. Surge 50, 60Hz (Itsm):: 39000A @ 50Hz

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

Operating Temperature:: -40°C ~ 140°C

Grade:: -

Qualification:: -

Mounting Type:: Clamp On

T1500N12TOFVTXPSA1 FAQ

1.How can I place an order for T1500N12TOFVTXPSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for T1500N12TOFVTXPSA1 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 T1500N12TOFVTXPSA1 reliable?

The price and inventory of T1500N12TOFVTXPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T1500N12TOFVTXPSA1 is usually 5 days.

3.What payment methods are accepted for T1500N12TOFVTXPSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T1500N12TOFVTXPSA1 transactions.

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T1500N12TOFVTXPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your T1500N12TOFVTXPSA1 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 T1500N12TOFVTXPSA1?

For technical support, including T1500N12TOFVTXPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T1500N12TOFVTXPSA1 requirements.

6.How does Aetrix verify that T1500N12TOFVTXPSA1 is sourced from the original manufacturer or authorized distributors?

All T1500N12TOFVTXPSA1 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 T1500N12TOFVTXPSA1 meets industry standards.

7.What is the process for return or replacement of T1500N12TOFVTXPSA1?

All T1500N12TOFVTXPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with T1500N12TOFVTXPSA1, 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 T1500N12TOFVTXPSA1 part is unused and in its original packaging.

Return procedure for T1500N12TOFVTXPSA1:

1.Submit a request within 90 days.

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

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