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Infineon Technologies TT170N14KOFHPSA1
- Part No.:
- TT170N14KOFHPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- SCRs - Modules
- Package:
- Module
- Datasheet:
-
TT170N14KOFHPSA1.pdf
- Description:
- SCR MODULE 1.4KV 350A MODULE
- Quantity:
- Payment:
- Shipping:
Inventory:5,556
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Product details
Overview
TT170N14KOFHPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line switching and rectification in industrial drive systems. It delivers 170 A average on-state current at 85 °C case temperature, supports 1400 V repetitive peak off-state voltage (VDRM/VRRM), and withstands 5200 A non-repetitive surge current. Its pressure-contact construction enables reliable operation in soft starters and static power controllers.
For engineers reviewing the TT170N14KOFHPSA1 datasheet, TT170N14KOFHPSA1 pinout, TT170N14KOFHPSA1 application, or TT170N14KOFHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.17 K/W), gate trigger current (≤200 mA), on-state voltage (≤1.65 V at 600 A), and electrically insulated baseplate compatibility with industrial heatsink mounting standards.
Technical Context
This dual-thyristor module operates in phase-controlled AC applications where precise conduction-angle regulation determines output power. Its 125 °C maximum junction temperature and 0.17 K/W RthJC enable stable thermal performance under continuous 170 A DC or 350 A RMS load conditions when properly heatsinked.
The device features a 150 A/µs critical di/dt rating and 1000 V/µs critical dv/dt capability, supporting robust commutation in bridge configurations. Its gate control characteristics-defined by VGT ≤ 2.0 V and IGT ≤ 200 mA at 12 V anode-cathode voltage-ensure reliable triggering across industrial temperature ranges (-40 to +125 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 1400 V - Maximum repetitive blocking voltage per thyristor arm; defines safe AC line voltage rating in 3-phase 600 V systems. |
| ITAVM | 170 A at TC = 85 °C - Continuous average on-state current per arm; sets thermal design baseline for heatsink sizing. |
| ITSM | 5200 A at tP = 10 ms - Non-repetitive surge current handling; determines short-circuit withstand capability in motor drives. |
| RthJC | 0.17 K/W - Junction-to-case thermal resistance per module; directly impacts required heatsink thermal resistance for safe operation. |
| VTO / rT | 0.95 V / 1.0 mΩ - Threshold voltage and slope resistance; defines conduction loss profile and forward voltage drop at rated current. |
| (diT/dt)cr | 150 A/µs - Minimum required rate of rise of on-state current to avoid localized hot-spot formation during turn-on. |
| Visol | 3.0 kV RMS - Basic insulation test voltage; certifies electrical isolation between power terminals and baseplate per IEC61140 Class 1. |
Pinout & Package
TT170N14KOFHPSA1 uses an industrial-standard press-pack module package with electrically insulated aluminum nitride (AlN) baseplate and M1/M2 screw terminals. Dimensions and mechanical layout conform to Infineon's standard 50 mm baseplate footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 / K2 | Anode 1 / Cathode 2 | Main power terminals for one thyristor arm; configured as common-cathode pair in B2/B6 bridge topologies. |
| K1 / A2 | Cathode 1 / Anode 2 | Main power terminals for second thyristor arm; enables full-wave controlled rectification in single- or three-phase bridges. |
| G1 / G2 | Gate 1 / Gate 2 | Isolated low-energy gate inputs; require ≤200 mA trigger current and ≤2.0 V trigger voltage for reliable turn-on. |
| Baseplate | Electrically insulated case | Thermally conductive AlN-insulated surface; provides 3.0 kV isolation and serves as primary heat path to heatsink. |
Key Features
| Feature | Design Value |
|---|---|
| Pressure contact technology | Eliminates wire bonds and solder joints, enabling >10⁶ switching cycles and stable RthJC over lifetime. |
| Electrically isolated baseplate | AlN ceramic insulation supports 3.0 kV RMS isolation, removing need for additional insulating hardware in chassis-mounted designs. |
| Advanced Medium Power Technology (AMPT) | Optimized silicon die structure reduces VT0 and rT while maintaining high dv/dt immunity (1000 V/µs). |
| Industrial standard package | 50 mm × 50 mm baseplate with M1 (5 Nm) and M2 (12 Nm) torque specs ensures mechanical interoperability with legacy heatsink systems. |
Applications
| Soft Starters | Drive Rectifiers |
|---|---|
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 conduction angle of each AC half-cycle to modulate RMS output voltage. Use Value: Enables smooth acceleration without contactor wear, leveraging 170 A ITAVM and 5200 A ITSM for repeated high-torque starts. | Use Scenario: AC-to-DC conversion in variable-frequency drive front-ends operating from 380–690 VAC industrial mains. IC Role / Device Role / Timing Role: Dual-arm thyristor module configured in B6 six-pulse bridge to deliver regulated DC bus voltage with adjustable firing delay. Use Value: Supports 350 A RMS output with <1.65 V on-state drop, minimizing conduction losses in continuous-duty drive applications. |
| Crowbar Protection | Static Power Controllers |
Use Scenario: Fast-acting overvoltage protection in UPS or generator excitation systems by shorting output during fault conditions. IC Role / Device Role / Timing Role: High-di/dt thyristor triggered into full conduction to divert fault current away from sensitive downstream loads. Use Value: 150 A/µs critical di/dt rating ensures reliable turn-on under high dv/dt transients, preventing misfiring during surge events. | Use Scenario: Solid-state replacement for electromechanical contactors in heating, lighting, and transformer tap-changer control. IC Role / Device Role / Timing Role: Bidirectional phase-angle controller managing power delivery to resistive or inductive loads via zero-crossing or phase-shifted gating. Use Value: 125 °C Tvj max and 0.17 K/W RthJC allow compact thermal design in enclosed cabinets with ambient temperatures up to 60 °C. |
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 |
|---|---|---|---|
| TT170N16KOFHPSA1 | Higher VDRM/VRRM (1600 V) and RthJC (0.17 K/W same), identical ITAVM and package. | Better suited for 690 VAC+ systems or higher transient overvoltage environments. | Select when system peak line voltage exceeds 1400 V or long-term reliability under voltage stress is prioritized. |
| TD170N14KOFHPSA1 | Single-thyristor version with same voltage/current ratings but no complementary arm; requires external pairing. | Used in custom asymmetric topologies or where independent arm control is needed. | Choose only when discrete arm control, modular redundancy, or non-bridge configurations are required. |
Compared with TT170N14KOFHPSA1, the TT170N16KOFHPSA1 offers enhanced voltage margin without thermal trade-off, while the TD170N14KOFHPSA1 sacrifices integration for design flexibility-neither is pin-compatible due to differing internal topology and terminal count.
Availability
TT170N14KOFHPSA1 is available at Aetrix Electronics and suitable for soft starters, drive rectifiers, crowbar protection circuits, and static power controllers requiring stable component supply and long-lifecycle industrial support.
Supply support for TT170N14KOFHPSA1 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 9001 and IATF 16949.
This part belongs to Infineon's "Netz-Thyristor-Modul" product line, engineered specifically for high-reliability, medium-power AC power control in harsh industrial environments including motor drives, UPS, and battery charging systems.
FAQ
What is the maximum allowable case temperature for continuous operation?
The maximum case temperature (TC) for continuous operation is +125 °C, as defined by the device's thermal derating curves. At this temperature, the module supports 170 A average on-state current per arm. Operation above this limit risks irreversible junction damage and must be avoided even momentarily without active cooling verification.
Does TT170N14KOFHPSA1 require forced air cooling?
No forced air cooling is mandatory if the heatsink thermal resistance (RthCA) is ≤0.15 K/W for 170 A operation at 85 °C case temperature. Natural convection is viable with large finned heatsinks; however, airflow ≥2 m/s reduces required RthCA by ~30%, improving margin for transient loads.
Can this module be used in a single-phase full-wave rectifier?
Yes-it is configured as a dual-thyristor common-cathode pair, making it ideal for single-phase B2 full-wave controlled rectifiers. Terminal A1/K2 and K1/A2 form the two arms, with gates G1/G2 independently controllable to achieve symmetrical or asymmetrical conduction angles.
What gate drive voltage and current are required for reliable triggering?
A minimum gate trigger voltage of 2.0 V and current of 200 mA at 12 V anode-cathode voltage is required for guaranteed turn-on at -40 °C. For robust operation across temperature, gate drivers should deliver ≥3.0 V and ≥300 mA peak pulse current with ≤3 µs delay time to meet tgd specification.
TT170N14KOFHPSA1 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:
- 1.4 kV
- Current - On State (It (AV)) (Max):
- 223 A
- Current - On State (It (RMS)) (Max):
- 350 A
- Voltage - Gate Trigger (Vgt) (Max):
- 2 V
- Current - Gate Trigger (Igt) (Max):
- 200 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 5200A @ 50Hz
- Current - Hold (Ih) (Max):
- 300 mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
TT170N14KOFHPSA1 FAQ
1.How can I place an order for TT170N14KOFHPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TT170N14KOFHPSA1 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 TT170N14KOFHPSA1 reliable?
The price and inventory of TT170N14KOFHPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TT170N14KOFHPSA1 is usually 5 days.
3.What payment methods are accepted for TT170N14KOFHPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TT170N14KOFHPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TT170N14KOFHPSA1?
TT170N14KOFHPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TT170N14KOFHPSA1 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 TT170N14KOFHPSA1?
For technical support, including TT170N14KOFHPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TT170N14KOFHPSA1 requirements.
6.How does Aetrix verify that TT170N14KOFHPSA1 is sourced from the original manufacturer or authorized distributors?
All TT170N14KOFHPSA1 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 TT170N14KOFHPSA1 meets industry standards.
7.What is the process for return or replacement of TT170N14KOFHPSA1?
All TT170N14KOFHPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TT170N14KOFHPSA1, 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 TT170N14KOFHPSA1 part is unused and in its original packaging.
Return procedure for TT170N14KOFHPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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