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Infineon Technologies TT390N18SOFHPSA1
- Part No.:
- TT390N18SOFHPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- SCRs - Modules
- Package:
- Module
- Datasheet:
-
TT390N18SOFHPSA1.pdf
- Description:
- SCR MODULE 1.8KV 520A MODULE
- Quantity:
- Payment:
- Shipping:
Inventory:3
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Product details
Overview
TT390N18SOFHPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line commutated switching in industrial power conversion systems. It delivers 380 A average on-state current (ITAVM) at TC = 85 °C, 1800 V repetitive peak off-state voltage (VDRM/VRRM), and 9500 A non-repetitive surge current (ITSM), enabling robust operation in soft starters and UPS rectifiers.
For engineers reviewing the TT390N18SOFHPSA1 datasheet, TT390N18SOFHPSA1 pinout, TT390N18SOFHPSA1 application, or TT390N18SOFHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.110 K/W), electrically insulated baseplate, pre-applied TIM option, and 140 °C maximum junction temperature under full conduction.
Technical Context
This dual-thyristor module operates in line-commutated mode with gate-controlled turn-on and natural commutation via current zero-crossing. Its 100 A/µs critical diT/dt and 1000 V/µs critical dv/dt ensure reliable triggering and noise immunity in high-di/dt drive circuits.
The module integrates two anti-parallel thyristor chips in an industrial-standard package with Al₂O₃-based electrical isolation (3.6 kV insulation test voltage, 1 min), supporting DC and sinewave conduction angles up to 180°, and delivering 1.47 V max on-state voltage at 750 A and 140 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 1800 V - Withstands repetitive AC line transients up to 1800 V peak in both forward and reverse directions. |
| ITAVM (TC = 85 °C) | 380 A - Sustains continuous average conduction current of 380 A when case temperature is held at 85 °C. |
| ITSM (10 ms, Tvj = 25 °C) | 9500 A - Handles short-circuit fault currents up to 9.5 kA for 10 ms without destruction. |
| RthJC (sin 180°) | 0.110 K/W - Thermal resistance from junction to case per module enables precise heatsink sizing for 380 A operation. |
| vT max (iT = 750 A, Tvj = 140 °C) | 1.47 V - On-state voltage drop determines conduction loss: ~550 W per arm at rated current. |
| (diT/dt)cr | 100 A/µs - Minimum required rate-of-rise for reliable turn-on without false triggering. |
| Tvj max | 140 °C - Maximum allowable junction temperature defines safe operating area under transient overload. |
Pinout & Package
TT390N18SOFHPSA1 uses an industrial-standard isolated baseplate module package with solder-bond technology and 50 mm baseplate dimensions. The module contains two thyristor arms configured anti-parallel for AC control, with three main terminals (A1, A2, G) per arm and shared isolated mounting surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (Arm 1 Anode) | Main current input terminal for first thyristor arm | Carries full load current into arm 1; electrically isolated from baseplate and other terminals. |
| A2 (Arm 1 Cathode) | Main current output terminal for first thyristor arm | Connects to load or bridge midpoint; forms low-inductance path with A1 during conduction. |
| G (Arm 1 Gate) | Trigger control input for first thyristor arm | Accepts 150 mA max gate trigger current; requires ≤2 V gate voltage for reliable turn-on. |
| A1' (Arm 2 Anode) | Main current input terminal for second (anti-parallel) thyristor arm | Enables bidirectional AC conduction when paired with Arm 1; shares same baseplate isolation. |
| A2' (Arm 2 Cathode) | Main current output terminal for second thyristor arm | Completes AC path; polarity reversed relative to Arm 1 to support full-wave phase control. |
| G' (Arm 2 Gate) | Trigger control input for second thyristor arm | Independent gate drive required; identical electrical specs to G terminal. |
Key Features
| Feature | Design Value |
|---|---|
| Electrically insulated baseplate | Al₂O₃ ceramic isolation rated 3.6 kV RMS (1 sec), enabling direct mounting to grounded heatsinks without additional insulation. |
| Solder-bond chip attachment | Eliminates wire bonds and reduces thermal resistance by 20% vs. standard clip-bond modules, improving power cycling reliability. |
| Pre-applied thermal interface material (TIM) | Reduces RthCH by up to 50% versus dry-mounting; eliminates manual TIM application and void risk in production. |
| 140 °C maximum junction temperature | Extends usable thermal headroom by 15 °C over standard 125 °C thyristors, allowing higher current density or smaller heatsinks. |
Applications
| Soft Starters | UPS Rectifiers |
|---|---|
Use Scenario: Gradual ramp-up of motor voltage during startup to limit inrush current and mechanical stress. IC Role / Device Role / Timing Role: Phase-controlled AC switch regulating conduction angle per half-cycle to modulate RMS output voltage. Use Value: Enables 380 A continuous current handling with <1.5 V on-state drop, reducing thermal derating in compact enclosures. | Use Scenario: Converting utility AC to regulated DC for battery charging and inverter input in double-conversion UPS systems. IC Role / Device Role / Timing Role: High-current, line-commutated rectifier arm in six-pulse B6 bridge configuration. Use Value: Supports 520 A RMS current (ITRMSM) and 9500 A surge tolerance, ensuring ride-through during grid faults. |
| Drive Power Controllers | Battery Charger Rectifiers |
Use Scenario: Precise torque and speed regulation in industrial AC drives using phase-angle control of supply voltage. IC Role / Device Role / Timing Role: Bidirectional thyristor pair controlling power flow direction and magnitude in regenerative braking circuits. Use Value: Dual-arm anti-parallel structure enables full-wave AC control with matched thermal characteristics across both directions. | Use Scenario: High-efficiency AC/DC conversion for EV and industrial battery chargers requiring >100 kW output. IC Role / Device Role / Timing Role: Primary rectification stage operating at 50/60 Hz with adjustable conduction window for constant-current charging profiles. Use Value: 0.58 mΩ slope resistance (rT) minimizes conduction losses at high average currents, improving system efficiency by ≥1.2% at 300 A. |
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 |
|---|---|---|---|
| TD390N18SOF | Same die, identical VDRM/ITAVM/RthJC, but non-isolated baseplate (requires external insulator) | Requires additional isolation hardware; unsuitable for direct-mount heatsink designs | Select when cost-sensitive and thermal/mechanical layout permits external insulation. |
| TT500N18SOF | Higher ITAVM (500 A), larger footprint (62 mm baseplate), RthJC = 0.085 K/W | Supports higher continuous current but needs larger heatsink and PCB space | Select when system requires >380 A average current or extended thermal margin at same footprint. |
Compared with TD390N18SOF and TT500N18SOF, TT390N18SOFHPSA1 uniquely combines electrically isolated baseplate, pre-applied TIM, and optimized 50 mm form factor-making it ideal for space-constrained, high-reliability soft starter and UPS rectifier designs where mounting simplicity and thermal predictability are critical.
Availability
TT390N18SOFHPSA1 is available at Aetrix Electronics and suitable for soft starters, UPS rectifiers, and industrial drive controllers requiring stable component supply, long lifecycle support, and traceable sourcing for high-reliability power systems.
Supply support for TT390N18SOFHPSA1 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 security solutions, with global manufacturing and R&D infrastructure.
This part belongs to Infineon's high-power thyristor module product line, engineered specifically for industrial AC power control applications including motor starting, energy conversion, and static switching where ruggedness, thermal stability, and isolation integrity are mandatory.
FAQ
What is the maximum allowable case temperature for continuous operation?
The maximum case temperature (TC) for continuous operation is +125 °C, as specified in the storage and operating temperature range. However, the rated ITAVM = 380 A is defined at TC = 85 °C; operation above this requires linear derating per the TC vs. ITAVM curve in the datasheet, with full derating to zero at TC = 125 °C.
Does TT390N18SOFHPSA1 require external snubber circuits?
Snubbers are recommended for inductive loads due to its 1000 V/µs critical dv/dt rating. While the device can operate without snubbers in resistive or lightly inductive applications, a RC snubber across each thyristor arm is advised for motor drives and UPS rectifiers to suppress voltage overshoot during commutation and prevent false turn-on.
How is gate drive isolation implemented in this module?
Gate terminals (G and G′) are electrically isolated from the main power terminals and baseplate, with minimum creepage distance of 10 mm and reinforced insulation per IEC 61140 Class 1. External gate drivers must provide galvanic isolation (e.g., pulse transformers or optocouplers) rated ≥3.6 kV to match the module's insulation capability and prevent latch-up.
Can TT390N18SOFHPSA1 be used in DC applications?
No-it is designed exclusively for AC line-commutated operation. Thyristors require natural current zero-crossing to commutate; in pure DC, they remain latched after triggering unless externally forced off. For DC switching, IGBT or MOSFET-based modules with active turn-off capability are required.
TT390N18SOFHPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Tray
- Product Status:
- Active
- Structure:
- Series Connection - All SCRs
- Number of SCRs, Diodes:
- 2 SCRs
- Voltage - Off State:
- 1.8 kV
- Current - On State (It (AV)) (Max):
- 380 A
- Current - On State (It (RMS)) (Max):
- 520 A
- Voltage - Gate Trigger (Vgt) (Max):
- 2 V
- Current - Gate Trigger (Igt) (Max):
- 150 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 9500A @ 50Hz
- Current - Hold (Ih) (Max):
- 150 mA
- Operating Temperature:
- -40°C ~ 125°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
TT390N18SOFHPSA1 FAQ
1.How can I place an order for TT390N18SOFHPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TT390N18SOFHPSA1 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 TT390N18SOFHPSA1 reliable?
The price and inventory of TT390N18SOFHPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TT390N18SOFHPSA1 is usually 5 days.
3.What payment methods are accepted for TT390N18SOFHPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TT390N18SOFHPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TT390N18SOFHPSA1?
TT390N18SOFHPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TT390N18SOFHPSA1 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 TT390N18SOFHPSA1?
For technical support, including TT390N18SOFHPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TT390N18SOFHPSA1 requirements.
6.How does Aetrix verify that TT390N18SOFHPSA1 is sourced from the original manufacturer or authorized distributors?
All TT390N18SOFHPSA1 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 TT390N18SOFHPSA1 meets industry standards.
7.What is the process for return or replacement of TT390N18SOFHPSA1?
All TT390N18SOFHPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TT390N18SOFHPSA1, 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 TT390N18SOFHPSA1 part is unused and in its original packaging.
Return procedure for TT390N18SOFHPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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