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Infineon Technologies TT240N38KOFHPSA1
- Part No.:
- TT240N38KOFHPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- SCRs - Modules
- Package:
- Module
- Datasheet:
-
TT240N38KOFHPSA1.pdf
- Description:
- SCR MODULE 3.8KV 700A MODULE
- Quantity:
- Payment:
- Shipping:
Inventory:2,134
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Product details
Overview
TT240N38KOFHPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line commutated switching in industrial power converters. It delivers 240 A average on-state current (ITAVM) at TC = 85 °C, 3800 V repetitive peak off-state voltage (VDRM/VRRM), and features electrically insulated baseplate construction with solder-bond technology. It is used in soft starters, UPS rectifiers, and static power controllers operating up to 140 °C junction temperature.
For engineers reviewing the TT240N38KOFHPSA1 datasheet, TT240N38KOFHPSA1 pinout, TT240N38KOFHPSA1 application, or TT240N38KOFHPSA1 equivalent, key selection criteria include verified VDRM/VRRM rating, ITAVM derating vs. conduction angle, thermal resistance RthJC (0.145 K/W per arm), gate trigger characteristics (IGT ≤ 145 mA), and isolation test voltage (3.6 kV RMS/1 sec).
Technical Context
This thyristor module implements a dual-arm, anti-parallel configuration for full-wave AC control in phase-angle regulated systems. Its 3800 V VDRM/VRRM rating supports operation on 3.3 kV AC distribution lines, while the 5200 A non-repetitive surge current (ITSM) enables robust short-circuit withstand in motor drive inverters and battery charger front-ends.
The device uses Al₂O₃-based basic insulation (IEC 61140 Class 1) and solder-bond interconnects to ensure stable thermal performance under cyclic load conditions. Gate triggering is specified at 12 V anode-cathode voltage with diG/dt = 1 A/µs, and critical dv/dt immunity reaches 1000 V/µs at maximum junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 3800 V - Enables direct connection to 3.3 kV AC mains without series stacking. |
| ITAVM (TC = 85 °C) | 240 A - Sustained DC-equivalent conduction current per arm under heatsink-controlled conditions. |
| ITSM (10 ms, Tvj = 25 °C) | 5200 A - Withstands motor lock-rotor or UPS inrush events without latch-up. |
| RthJC (per arm) | 0.145 K/W - Defines minimum heatsink requirement for 140 °C max junction temperature at full load. |
| VISOL (1 sec) | 3.6 kV RMS - Confirms reinforced insulation integrity for industrial safety compliance (IEC 61800-5-1). |
| (diT/dt)cr | 100 A/µs - Supports fast turn-on in high-dI/dt applications like dynamic braking circuits. |
| (dvD/dt)cr | 1000 V/µs - Prevents false triggering during rapid voltage transients in transformer-coupled systems. |
Pinout & Package
TT240N38KOFHPSA1 is housed in an industry-standard press-pack module with electrically insulated baseplate (Al₂O₃ ceramic). Mechanical mounting uses M1 screws (5 Nm ±15%), and electrical terminals conform to DIN 46244 A (2.8 × 0.8 mm flat blade). Control terminals are isolated from main power paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 / K2 | Anode 1 / Cathode 2 | Main power terminals for one thyristor arm (anti-parallel pair). |
| K1 / A2 | Cathode 1 / Anode 2 | Main power terminals for second thyristor arm - forms full AC bridge leg. |
| G1 / G2 | Gate 1 / Gate 2 | Isolated low-energy gate inputs; each controls one thyristor in the dual-arm structure. |
| Baseplate | Thermal & Electrical Reference | Electrically insulated (3.6 kV), thermally conductive interface to heatsink; no electrical reference required. |
Key Features
| Feature | Design Value |
|---|---|
| Solder-bond interconnect | Eliminates wire bonds and thermal fatigue at chip-to-baseplate interface, extending lifetime under thermal cycling. |
| Electrically insulated baseplate | Al₂O₃ ceramic isolation enables direct mounting on grounded heatsinks without external insulators. |
| High dv/dt immunity (1000 V/µs) | Prevents spurious turn-on in noisy industrial environments with fast-switching adjacent IGBTs. |
| Low threshold voltage (V(TO) ≤ 0.85 V) | Reduces gate drive power demand and improves efficiency in high-frequency phase-control topologies. |
| Controlled turn-off time (tq ≈ 370 µs) | Ensures reliable commutation in line-commutated rectifier and soft-starter designs with inductive loads. |
Applications
| Soft Starter Systems | UPS Rectifier Stages |
|---|---|
|
Use Scenario: Controlled ramp-up of induction motor voltage during startup to limit inrush current and mechanical stress. IC Role / Device Role / Timing Role: Phase-controlled thyristor arm regulating AC voltage amplitude via firing angle delay. Use Value: Delivers 240 A continuous conduction per arm with 5200 A surge tolerance, enabling direct-on-line replacement in 200–300 kW drives. |
Use Scenario: Input-stage AC-to-DC conversion in three-phase online UPS systems requiring high reliability and galvanic isolation. IC Role / Device Role / Timing Role: Six-pulse bridge thyristor module providing bidirectional line synchronization and regenerative capability. Use Value: 3.6 kV isolation rating and 140 °C max junction temperature support continuous operation in enclosed UPS cabinets with limited airflow. |
| Battery Charger Front-Ends | Static Power Controllers |
|
Use Scenario: High-efficiency AC input rectification for grid-tied EV charging stations and telecom battery banks. IC Role / Device Role / Timing Role: Dual-arm thyristor module operating in controlled rectifier mode with programmable conduction angle. Use Value: 0.145 K/W RthJC enables compact heatsink design while maintaining <1.52 V forward drop at 500 A peak, minimizing conduction losses. |
Use Scenario: Solid-state replacement of electromechanical contactors in industrial heating and lighting control panels. IC Role / Device Role / Timing Role: Zero-crossing or phase-angle switched thyristor module delivering precise AC power regulation. Use Value: 100 A/µs diT/dt rating and 1000 V/µs dv/dt immunity prevent misfiring during frequent on/off cycling in resistive load banks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar phase-control thyristor module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TT240N16SOF | Lower VDRM/VRRM (1600 V); identical ITAVM, RthJC, and package footprint. | Limited to 690 V AC systems; unsuitable for medium-voltage 3.3 kV applications. | Select when operating on LV industrial grids (<1 kV) and cost sensitivity outweighs voltage headroom. |
| TT330N16KOF | Higher ITAVM (330 A), same 1600 V rating, larger thermal resistance (RthJC = 0.105 K/W). | Requires larger heatsink but supports higher continuous current in space-constrained soft starters. | Choose for upgraded current capacity in existing 1600 V designs where thermal margin allows. |
Compared with TT240N16SOF and TT330N16KOF, TT240N38KOFHPSA1 uniquely combines 3800 V blocking capability with 240 A conduction and industry-standard packaging-enabling single-module solutions for medium-voltage AC power control without series stacking or custom cooling.
Availability
TT240N38KOFHPSA1 is available at Aetrix Electronics and suitable for soft starter systems, UPS rectifier stages, and static power controllers requiring stable component supply, long lifecycle support, and certified industrial isolation.
Supply support for TT240N38KOFHPSA1 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 electronics, automotive ICs, and industrial control solutions, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.
This part belongs to Infineon's "Netz-Thyristor-Modul" product line, engineered specifically for high-reliability, line-commutated AC power control in harsh industrial environments including motor drives, energy storage systems, and grid infrastructure.
FAQ
What is the maximum allowable case temperature for continuous operation?
The maximum case temperature (Tc) is 130 °C, as defined in the thermal specifications. Operation above this value risks exceeding the 140 °C maximum junction temperature, especially under high conduction angles or poor heatsink contact. Derating curves in the datasheet show ITAVM reduction to 190 A at Tc = 110 °C for Θ = 180° sinusoidal conduction.
Does TT240N38KOFHPSA1 require forced air cooling?
No forced air cooling is mandatory if the heatsink thermal resistance (RthCH) is ≤ 0.04 K/W per arm and ambient temperature remains ≤ 40 °C. Natural convection is viable for intermittent duty; however, sustained 240 A operation at 130 °C case temperature requires active cooling or oversized heatsinking per the Ptot vs. RthCA curves on page 8 of the technical information document.
Can this module be used in reverse-conducting configurations?
No - TT240N38KOFHPSA1 is a standard phase-control thyristor module with unidirectional conduction per arm. It lacks integrated freewheeling diodes and cannot conduct reverse current. For reverse-conducting operation, a separate anti-parallel diode module or a dedicated RC-IGBT hybrid solution must be used.
What gate drive voltage and current are required for reliable turn-on?
A minimum gate trigger voltage of 2.5 V (VGT max) and current of 145 mA (IGT max) at 12 V anode-cathode voltage ensures turn-on across temperature and aging. Recommended gate pulse energy is ≥60 µJ (e.g., 15 V, 200 mA, 20 µs), with diG/dt ≥ 1 A/µs to meet the 2 µs maximum gate delay (tgd) specification at Tvj = 25 °C.
TT240N38KOFHPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Structure:
- Series Connection - All SCRs
- Number of SCRs, Diodes:
- 2 SCRs
- Voltage - Off State:
- 3.8 kV
- Current - On State (It (AV)) (Max):
- 446 A
- Current - On State (It (RMS)) (Max):
- 700 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.5 V
- Current - Gate Trigger (Igt) (Max):
- 250 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 6100A @ 50Hz
- Current - Hold (Ih) (Max):
- 300 mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
TT240N38KOFHPSA1 FAQ
1.How can I place an order for TT240N38KOFHPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TT240N38KOFHPSA1 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 TT240N38KOFHPSA1 reliable?
The price and inventory of TT240N38KOFHPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TT240N38KOFHPSA1 is usually 5 days.
3.What payment methods are accepted for TT240N38KOFHPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TT240N38KOFHPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TT240N38KOFHPSA1?
TT240N38KOFHPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TT240N38KOFHPSA1 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 TT240N38KOFHPSA1?
For technical support, including TT240N38KOFHPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TT240N38KOFHPSA1 requirements.
6.How does Aetrix verify that TT240N38KOFHPSA1 is sourced from the original manufacturer or authorized distributors?
All TT240N38KOFHPSA1 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 TT240N38KOFHPSA1 meets industry standards.
7.What is the process for return or replacement of TT240N38KOFHPSA1?
All TT240N38KOFHPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TT240N38KOFHPSA1, 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 TT240N38KOFHPSA1 part is unused and in its original packaging.
Return procedure for TT240N38KOFHPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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