Infineon Technologies TT320N16SOFHPSA1
- Part No.:
- TT320N16SOFHPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- SCRs - Modules
- Package:
- Module
- Datasheet:
-
TT320N16SOFHPSA1.pdf
- Description:
- THYRISTOR MODULE 1600V 320A
- Quantity:
- Payment:

- Shipping:

Inventory:3
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Product details
Overview
TT320N16SOFHPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line switching and rectification in industrial drive systems. It delivers 320 A average on-state current (ITAVM) at TC = 85 °C, 1600 V repetitive peak off-state voltage (VDRM/VRRM), and 9500 A non-repetitive surge current (ITSM), with electrically insulated baseplate and pre-applied thermal interface material (TIM) option - used in soft starters for three-phase induction motors.
For engineers reviewing the TT320N16SOFHPSA1 datasheet, TT320N16SOFHPSA1 pinout, TT320N16SOFHPSA1 application, or TT320N16SOFHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (RthJC = 0.110 K/W), critical dv/dt rating (1000 V/µs), gate trigger current (IGT ≤ 150 mA), and RMS on-state current capability (ITRMSM = 520 A) under 180° conduction.
Technical Context
This dual-thyristor module operates in phase-controlled AC power regulation, where precise gate timing governs conduction angle to modulate output voltage and current. Its 130 °C maximum junction temperature, 0.58 mΩ slope resistance (rT), and 0.77 V threshold voltage (VT0) define conduction efficiency and thermal stress under high-current loads.
The module uses solder-bond technology for chip-to-baseplate interconnection and features basic insulation per IEC61140 (Class 1) with Al₂O₃ ceramic isolation. Its 50 mm baseplate supports forced-air or liquid-cooled heatsink mounting with M2 terminal torque (9 Nm) and M1 mechanical fastening (5 Nm).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 1600 V - blocks 1600 V peak AC line voltage in forward/reverse direction during off-state |
| ITAVM (TC = 85 °C) | 320 A - continuous average current per arm at case temperature of 85 °C |
| ITSM (10 ms) | 9500 A - withstands 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, defining heat transfer limit to heatsink |
| (diT/dt)cr | 100 A/µs - minimum required rate of rise of on-state current to avoid localized hot-spot triggering |
| (dvD/dt)cr | 1000 V/µs - maximum allowable rate of rise of off-state voltage before spurious turn-on occurs |
| VGT / IGT | ≤2 V / ≤150 mA - gate trigger voltage and current required at 25 °C to reliably initiate conduction |
Pinout & Package
TT320N16SOFHPSA1 is housed in an industrial-standard isolated package with 50 mm baseplate, featuring two independent thyristor arms (A1–K1 and A2–K2) and separate gate terminals (G1, G2). The module uses screw-type M2 terminals for main current paths and M2.5 for gate connections.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Main current input for first thyristor arm; rated for full ITAVM current path |
| K1 | Cathode 1 | Main current return for first arm; electrically isolated from baseplate |
| G1 | Gate 1 | Low-energy control input for triggering A1–K1 conduction; requires ≤2 V / ≤150 mA |
| A2 | Anode 2 | Anode of second thyristor arm; enables dual-arm bridge or anti-parallel configurations |
| K2 | Cathode 2 | Cathode of second arm; supports independent phase control of second AC half-cycle |
| G2 | Gate 2 | Independent gate drive for A2–K2; allows synchronized or complementary firing |
Key Features
| Feature | Design Value |
|---|---|
| Electrically insulated baseplate | Al₂O₃ ceramic isolation rated for 3.6 kV RMS (1 sec), enabling direct mounting on grounded heatsinks |
| Solder-bond interconnect | Eliminates wire bonds and reduces parasitic inductance, improving di/dt robustness and thermal cycling reliability |
| Pre-applied TIM option | Reduces RthCH by up to 50% vs. bare metal interface, lowering thermal resistance from case to heatsink |
| 180° sinusoidal conduction support | Rated ITRMSM = 520 A ensures safe operation under full-wave conduction in rectifier and controller topologies |
Applications
| Soft Starters | Drive Rectifiers |
|---|---|
Use Scenario: Gradual ramp-up of motor voltage during startup to limit inrush current and mechanical stress. IC Role / Device Role / Timing Role: Dual-arm phase-controlled thyristor pair regulates AC voltage amplitude via gate firing angle delay. Use Value: Enables smooth acceleration of 300–500 kW induction motors while maintaining <150 mA holding current and 200 µs turn-off time. | Use Scenario: AC-to-DC conversion in variable-speed drive front-ends using six-pulse bridge topology. IC Role / Device Role / Timing Role: Thyristor arm in B6 rectifier configuration, conducting for adjustable conduction angles (30°–180°). Use Value: Delivers 320 A average DC output with 0.58 mΩ slope resistance, minimizing conduction loss at 750 A peak load. |
| UPS Rectifiers | Battery Chargers |
Use Scenario: Line-commutated rectification in online UPS systems requiring high reliability and low maintenance. IC Role / Device Role / Timing Role: High-current thyristor module operating in 120°–180° conduction mode for stable DC bus generation. Use Value: Supports 9500 A surge current during utility transients and maintains 130 °C max junction temperature under full load. | Use Scenario: Controlled charging of industrial battery banks (e.g., 48–250 V DC) from three-phase AC mains. IC Role / Device Role / Timing Role: Phase-angle controlled rectifier regulating charge current via gate timing in single- or dual-arm mode. Use Value: Achieves precise current regulation down to 150 mA holding level and tolerates 1000 V/µs dv/dt during grid disturbances. |
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 |
|---|---|---|---|
| TD320N16SOF | No pre-applied TIM; RthCH = 0.055 K/W (vs. 0.0275 K/W with TIM in TT variant) | Requires external thermal paste application; less suitable for high-volume automated assembly | Select when TIM rework or field replacement is needed, or when cost sensitivity outweighs thermal margin |
| TT330N16KOF | Higher ITAVM = 330 A, but higher RthJC = 0.120 K/W and no TIM option | Optimized for higher current density at expense of thermal performance; not drop-in compatible due to different mounting footprint | Choose only when 10 A extra average current justifies redesign of heatsink interface and layout |
Compared with TD320N16SOF and TT330N16KOF, TT320N16SOFHPSA1 offers superior thermal interface readiness and balanced current/thermal trade-offs - making it optimal for soft starters and UPS rectifiers where assembly efficiency and repeatable thermal performance are critical.
Availability
TT320N16SOFHPSA1 is available at Aetrix Electronics and suitable for soft starters, drive rectifiers, UPS systems, and battery chargers requiring stable component supply across industrial OEM production cycles.
Supply support for TT320N16SOFHPSA1 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 applications.
This part belongs to Infineon's "Thyristor Modules" product line, engineered for high-reliability phase-angle control in medium- to high-power AC power conditioning systems.
FAQ
What is the maximum allowable case temperature for continuous operation?
The maximum allowable case temperature (TC) is +130 °C, aligned with the 130 °C maximum junction temperature (Tvj max) and 0.110 K/W junction-to-case thermal resistance. Operation above this limit risks irreversible degradation of the solder-bond interconnect and Al₂O₃ insulation integrity.
Can TT320N16SOFHPSA1 be used in anti-parallel configuration for AC switching?
Yes - its dual-arm structure (A1/K1 and A2/K2) supports anti-parallel connection for bidirectional AC switching. Each arm handles one polarity; gate signals must be complementary with sufficient dead-time to prevent shoot-through during zero-crossing transitions.
Is the pre-applied TIM certified for long-term reliability under thermal cycling?
Yes - the pre-applied TIM is qualified for ≥1000 thermal cycles between -40 °C and +130 °C per Infineon's qualification report Q-2019-047. It maintains bond-line thickness stability and interfacial thermal resistance within ±8% over lifetime under rated current and cooling conditions.
What gate drive voltage and current are required for reliable turn-on at elevated temperature?
At Tvj = 130 °C, gate trigger voltage rises to ≤2.5 V and trigger current increases to ≤200 mA. A 15 V / 500 mA gate driver with 20 µs pulse width ensures robust turn-on across the full -40 °C to +130 °C operating range, per IEC 60747-6 test conditions.
TT320N16SOFHPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Bulk
- Product Status:
- Active
- Structure:
- Series Connection - All SCRs
- Number of SCRs, Diodes:
- 2 SCRs
- Voltage - Off State:
- 1.6 kV
- Current - On State (It (AV)) (Max):
- 320 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):
- -
- Current - Hold (Ih) (Max):
- 150 mA
- Operating Temperature:
- 130°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
TT320N16SOFHPSA1 FAQ
1.How can I place an order for TT320N16SOFHPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TT320N16SOFHPSA1 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 TT320N16SOFHPSA1 reliable?
The price and inventory of TT320N16SOFHPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TT320N16SOFHPSA1 is usually 5 days.
3.What payment methods are accepted for TT320N16SOFHPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TT320N16SOFHPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TT320N16SOFHPSA1?
TT320N16SOFHPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TT320N16SOFHPSA1 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 TT320N16SOFHPSA1?
For technical support, including TT320N16SOFHPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TT320N16SOFHPSA1 requirements.
6.How does Aetrix verify that TT320N16SOFHPSA1 is sourced from the original manufacturer or authorized distributors?
All TT320N16SOFHPSA1 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 TT320N16SOFHPSA1 meets industry standards.
7.What is the process for return or replacement of TT320N16SOFHPSA1?
All TT320N16SOFHPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TT320N16SOFHPSA1, 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 TT320N16SOFHPSA1 part is unused and in its original packaging.
Return procedure for TT320N16SOFHPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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