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Infineon Technologies T1503N75TOHXPSA2
- Part No.:
- T1503N75TOHXPSA2
- Manufacturer:
- Infineon Technologies
- Category:
- SCRs - Modules
- Package:
- DO-200AE
- Datasheet:
-
T1503N75TOHXPSA2.pdf
- Description:
- SCR MODULE 8000V 2770A DO200AE
- Quantity:
- Payment:
- Shipping:
Inventory:7,467
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Product details
Overview
T1503N75TOHXPSA2 from Infineon Technologies is a light-triggered phase-control thyristor designed for high-power HVDC converter valves and static var compensators (SVC). It delivers 7500 V repetitive peak reverse voltage (VRRM), 1770 A average on-state current at 85°C (ITAVM), and 57 kA non-repetitive surge current (ITSM), operating with 1.24 V threshold voltage (vT0) and 0.44 mΩ slope resistance (rT).
For engineers reviewing the T1503N75TOHXPSA2 datasheet, T1503N75TOHXPSA2 pinout, T1503N75TOHXPSA2 application, or T1503N75TOHXPSA2 equivalent, this device is selected for ultra-high-voltage, high-di/dt, and high-dv/dt power conversion systems requiring robust blocking stability, low conduction loss, and precise optical triggering in grid-scale infrastructure.
Technical Context
This thyristor uses direct optical triggering with an integrated break-over diode for fail-safe gate control and immunity to EMI. Its 300 A/µs critical di/dt rating and 2000 V/µs critical dv/dt capability support fast commutation in load-commutated inverters and crowbar protection circuits.
The device features two-sided cooling design with 6.0 K/kW junction-to-case thermal resistance (RthJC), 63–91 kN clamping force, and pressure-contact silicon pellet construction-enabling stable operation up to 120°C junction temperature under continuous DC and 50/60 Hz AC blocking conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM / VBO | 7500 V / 7500 V - Full 50/60 Hz reverse blocking capability with built-in overvoltage protection via integrated break-over diode |
| ITAVM (TC=85°C) | 1770 A - Continuous DC conduction rating enabling high-efficiency rectifier stacks in HVDC transmission |
| ITSM (10 ms) | 57000 A - Non-repetitive surge current handling for fault-clearing in SVC and crowbar applications |
| (diT/dt)cr | 300 A/µs - Enables reliable turn-on under high-current-slew conditions in load-commutated inverters |
| (dvD/dt)cr | 2000 V/µs - Supports stable blocking during rapid voltage transients in high-voltage DC link switching |
| vT0 / rT | 1.24 V / 0.44 mΩ - Low conduction loss profile minimizing thermal stress in high-current valve modules |
| RthJC | 6.0 K/kW - Thermal resistance optimized for two-sided heatsink mounting in modular converter subassemblies |
Pinout & Package
Package: Press-pack, double-sided cooled, 151.5 mm diameter, 40 mm height, 100 mm contact diameter, 3200 g mass. Designed for bolted assembly into water-cooled valve stacks with anode/cathode heat transfer surfaces and optical gate interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (1) | Main current terminal (positive side) | High-current DC path with pressure-contact interface; requires ≥63 kN clamping force for low-resistance thermal/electrical bond |
| Cathode (2) | Main current terminal (negative side) | Complementary high-current terminal; enables symmetrical two-sided cooling and bidirectional thermal management |
| Gate (4.1) | Optical trigger input | Fiber-optic coupled light-sensitive gate; no electrical isolation barrier needed; immune to ground-loop interference |
Key Features
| Feature | Design Value |
|---|---|
| Light-triggered operation | Eliminates gate drive transformers and high-voltage isolation circuitry; reduces system complexity in multi-thyristor valve towers |
| Integrated break-over diode | Provides automatic overvoltage protection without external snubbers; ensures self-protective turn-on during transient overvoltage events |
| High di/dt capability (300 A/µs) | Enables reliable forced commutation in load-commutated inverters without auxiliary turn-off circuits |
| Two-sided cooling interface | Supports uniform thermal distribution across 151.5 mm diameter package; maintains <120°C junction temperature under full ITAVM load |
| DC blocking stability | Rated for continuous 7500 V DC blocking at 120°C junction temperature-critical for HVDC pole-to-ground insulation coordination |
Applications
| HVDC Transmission Converter Valve | Static Var Compensator (SVC) |
|---|---|
Use Scenario: Bidirectional power flow control in ±800 kV ultra-high-voltage DC transmission links. IC Role / Device Role / Timing Role: Main power switching element in 12-pulse or 24-pulse thyristor-based converter bridges. Use Value: 7500 V VRRM and 57 kA ITSM ensure fault ride-through during AC-side short circuits and DC line faults. | Use Scenario: Dynamic reactive power injection for grid voltage stabilization in transmission substations. IC Role / Device Role / Timing Role: Phase-controlled switching element in thyristor-switched capacitor (TSC) and thyristor-controlled reactor (TCR) branches. Use Value: 300 A/µs di/dt rating allows precise firing-angle control without commutation failure under rapid VAR demand changes. |
| Drive Rectifier for Industrial Motors | Crowbar Protection Circuit |
Use Scenario: High-power AC/DC conversion for multi-MW rolling mill and mining drive systems. IC Role / Device Role / Timing Role: Line-commutated rectifier switch in dual-converter configurations feeding DC motors. Use Value: 1770 A ITAVM at 85°C supports continuous overload operation while maintaining <120°C junction temperature with water cooling. | Use Scenario: Overcurrent protection for synchronous generator excitation systems and UPS inverters. IC Role / Device Role / Timing Role: Fast-acting short-circuit bypass switch triggered by overcurrent detection logic. Use Value: 2000 V/µs dv/dt immunity prevents false triggering during high dV/dt transients caused by IGBT switching noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar light-triggered thyristor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TT1503N75TOF | Same VRRM (7500 V), higher ITAVM (2190 A @ TC=70°C), lower RthJC (5.5 K/kW), single-sided cooling only | Optimized for anode-cooled valve designs; not suitable for symmetric two-sided thermal management | Select when system layout restricts cooling to one side and higher average current at lower case temperature is required |
| T1503N80TOHXPSA2 | Higher VRRM (8000 V), identical ITAVM (1770 A), same package and optical gate interface | Used in 800 kV+ HVDC projects where enhanced reverse margin is mandated for insulation coordination | Select when system-level dielectric testing requires >7500 V blocking headroom under worst-case temperature and aging conditions |
Compared with TT1503N75TOF and T1503N80TOHXPSA2, the T1503N75TOHXPSA2 uniquely balances two-sided thermal performance, 7500 V blocking, and optical reliability-making it optimal for standardized, field-serviceable HVDC valve modules requiring mechanical and thermal symmetry.
Availability
T1503N75TOHXPSA2 is available at Aetrix Electronics and suitable for HVDC transmission converter valves, static var compensators (SVC), industrial drive rectifiers, and crowbar protection circuits requiring stable component supply across long-lifecycle infrastructure programs.
Supply support for T1503N75TOHXPSA2 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, automotive ICs, and security solutions, with global manufacturing and R&D centers.
This part belongs to Infineon's T1503N series of light-triggered thyristors engineered specifically for ultra-high-voltage power conversion in utility-scale energy infrastructure-including HVDC, SVC, and industrial medium-voltage drives.
FAQ
What is the required clamping force for proper thermal and electrical contact?
The T1503N75TOHXPSA2 requires a mechanical clamping force between 63 kN and 91 kN to ensure low-contact-resistance interface between its anode and cathode surfaces and the heatsinks. Insufficient force increases RthJC and vT, risking thermal runaway under ITAVM load; excessive force may deform the ceramic housing or damage internal silicon contacts.
Does this thyristor require an external gate driver circuit?
No-this is a light-triggered thyristor with fiber-optic gate input (terminal 4.1). It requires only a compatible optical pulse generator delivering ≥40 mW minimum trigger light power at 150 V anode-cathode voltage. No high-voltage electrical gate drivers, isolation transformers, or snubbers are needed.
Can it be used in asymmetrical cooling configurations?
Yes, but with derating: the datasheet specifies separate RthJC values for anode-sided (10.6 K/kW), cathode-sided (13.8 K/kW), and two-sided (6.0 K/kW) cooling. Asymmetrical mounting increases thermal resistance and must be accounted for in junction temperature calculation using the appropriate RthJC value and actual cooling surface conditions.
What is the maximum allowable junction temperature during surge conditions?
The absolute maximum junction temperature is 120°C under all operating conditions, including ITSM surges. During 10 ms surge events, transient thermal impedance limits peak Tvj rise-verified via ZthJC analytical model (page 5 of datasheet). Sustained operation above 120°C risks irreversible degradation of the silicon pellet and pressure-contact interface.
T1503N75TOHXPSA2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- DO-200AE
- Packaging:
- Tray
- Product Status:
- Obsolete
- Structure:
- Single
- Number of SCRs, Diodes:
- 1 SCR
- Voltage - Off State:
- 8 kV
- Current - On State (It (AV)) (Max):
- 1770 A
- Current - On State (It (RMS)) (Max):
- 2770 A
- Voltage - Gate Trigger (Vgt) (Max):
- -
- Current - Gate Trigger (Igt) (Max):
- 350 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 57000A @ 50Hz
- Current - Hold (Ih) (Max):
- 100 mA
- Operating Temperature:
- -40°C ~ 120°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
T1503N75TOHXPSA2 FAQ
1.How can I place an order for T1503N75TOHXPSA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for T1503N75TOHXPSA2 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 T1503N75TOHXPSA2 reliable?
The price and inventory of T1503N75TOHXPSA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T1503N75TOHXPSA2 is usually 5 days.
3.What payment methods are accepted for T1503N75TOHXPSA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T1503N75TOHXPSA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T1503N75TOHXPSA2?
T1503N75TOHXPSA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T1503N75TOHXPSA2 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 T1503N75TOHXPSA2?
For technical support, including T1503N75TOHXPSA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T1503N75TOHXPSA2 requirements.
6.How does Aetrix verify that T1503N75TOHXPSA2 is sourced from the original manufacturer or authorized distributors?
All T1503N75TOHXPSA2 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 T1503N75TOHXPSA2 meets industry standards.
7.What is the process for return or replacement of T1503N75TOHXPSA2?
All T1503N75TOHXPSA2 units undergo pre-shipment inspection (PSI). If there is an issue with T1503N75TOHXPSA2, 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 T1503N75TOHXPSA2 part is unused and in its original packaging.
Return procedure for T1503N75TOHXPSA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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