Infineon Technologies TT500N12KOFHPSA2
- Part No.:
- TT500N12KOFHPSA2
- Manufacturer:
- Infineon Technologies
- Category:
- SCRs - Modules
- Package:
- Module
- Datasheet:
-
TT500N12KOFHPSA2.pdf
- Description:
- TT500ThyrisDioModule
- Quantity:
- Payment:

- Shipping:

Inventory:3
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Product details
Overview
TT500N12KOFHPSA2 from Infineon Technologies is a pressure-contact thyristor module designed for phase-controlled AC power regulation in industrial medium-power applications. It delivers 500 A average on-state current (ITAVM) at TC = 85°C, 1200–1800 V repetitive peak off-state voltage (VDRM/VRRM), and 17 kA non-repetitive surge current (ITSM), enabling robust operation in soft starters and static switches.
For engineers reviewing the TT500N12KOFHPSA2 datasheet, TT500N12KOFHPSA2 pinout, TT500N12KOFHPSA2 application, or TT500N12KOFHPSA2 equivalent, key selection criteria include junction-to-case thermal resistance (0.055 K/W), gate trigger current (≤250 mA), on-state voltage (≤1.45 V at 1700 A), critical dv/dt rating (1000 V/µs), and electrically insulated baseplate compatibility with forced-air or liquid-cooled heatsinks.
Technical Context
This double-sided, dual-thyristor phase control module uses pressure-contact die attachment and aluminum nitride (AlN) insulation to achieve high thermal cycling reliability and electrical isolation up to 3.6 kV RMS. Its 180° conduction-angle capability supports full-wave rectification and bidirectional power control in B2 and B6 bridge topologies.
The device operates across -40°C to +125°C case temperature range and features a 250 µs circuit-commutated turn-off time (tq), 200 A/µs critical di/dt, and gate-controlled delay ≤4 µs-enabling precise firing-angle control in high-current drive rectifiers and crowbar protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 1200–1800 V - Specifies maximum repetitive blocking voltage per thyristor arm; determines usable AC line voltage class (e.g., 690 VAC 3-phase systems). |
| ITAVM (TC = 85°C) | 500 A - Average on-state current rating under defined thermal conditions; defines continuous DC output capability in rectifier or controller designs. |
| ITSM (10 ms) | 17000 A - Non-repetitive surge current handling; enables short-circuit withstand in motor starter and UPS crowbar applications. |
| RthJC | 0.055 K/W - Junction-to-case thermal resistance per module; sets minimum heatsink requirement for thermal management at rated load. |
| (dvD/dt)cr | 1000 V/µs - Critical rate of rise of off-state voltage; determines snubber design necessity and immunity to false triggering in noisy industrial environments. |
| VTO / rT | 0.85 V / 0.35 mΩ - Threshold voltage and slope resistance; defines conduction loss profile and forward voltage drop at high current (e.g., ≤1.45 V at 1700 A). |
| Visol (1 sec) | 3.6 kV RMS - Insulation test voltage; certifies reinforced isolation between power terminals and baseplate for safety-compliant system integration. |
Pinout & Package
TT500N12KOFHPSA2 is housed in an industrial-standard pressure-contact module package with electrically insulated AlN baseplate, 60 mm footprint, and M1 (6 Nm) mechanical mounting torque. Terminal layout follows dual-arm configuration: two main AC terminals (A1/K1 and A2/K2), two isolated gate terminals (G1 and G2), and baseplate (isolated, used as thermal interface).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 / K1 | Anode 1 / Cathode 1 | Main current path for first thyristor arm; connected to AC input phase in B2/B6 rectifier or phase-control topology. |
| A2 / K2 | Anode 2 / Cathode 2 | Main current path for second thyristor arm; enables complementary conduction in full-bridge configurations. |
| G1 | Gate 1 | Isolated low-energy control input for first thyristor; requires ≤2.2 V trigger voltage and ≥1 A pulse for reliable turn-on. |
| G2 | Gate 2 | Isolated low-energy control input for second thyristor; independently controllable for asymmetrical firing or sequential switching. |
| Baseplate | Thermal & Electrical Reference | Electrically insulated (Class I, EN61140) AlN surface; serves as heatsink interface and safety barrier-must be grounded per IEC 61800-5-1. |
Key Features
| Feature | Design Value |
|---|---|
| Pressure contact die attachment | Eliminates wire bonds and solder fatigue; enables >10⁵ thermal cycles and stable RthJC over lifetime in high-vibration environments. |
| AlN-based basic insulation | Provides 3.6 kV RMS isolation and 19 mm creepage distance-meets reinforced insulation requirements for 1000 VAC systems. |
| DC and 180° sinusoidal conduction support | Enables use in both uncontrolled rectifiers (e.g., battery chargers) and fully controlled phase-angle regulators (e.g., power controllers). |
| Low thermal resistance architecture | 0.055 K/W RthJC + 0.0075 K/W RthCH (with TIM) allows compact heatsink design for 500 A continuous operation at TC ≤ 85°C. |
| High dv/dt immunity | 1000 V/µs critical off-state voltage rise rate reduces need for external snubbers in fast-switching industrial drives. |
Applications
| Soft Starter | Drive Rectifier |
|---|---|
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 pair regulating AC voltage amplitude via firing-angle modulation in anti-parallel configuration. Use Value: Enables smooth torque delivery and eliminates contactor wear; leverages 17 kA ITSM to survive locked-rotor events without degradation. | Use Scenario: AC-to-DC conversion in variable-speed drive front-ends with regenerative braking capability. IC Role / Device Role / Timing Role: Dual-arm thyristor module operating in B6 six-pulse bridge mode for bidirectional power flow control. Use Value: Supports 1000 A output current in 690 VAC systems using standard heatsinking; 0.055 K/W RthJC ensures thermal stability under 150% overload for 60 s. |
| Crowbar Protection | Static Switch |
Use Scenario: Fast-acting overvoltage protection in UPS and DC link systems by shorting faulted bus to ground. IC Role / Device Role / Timing Role: High-current thyristor triggered within 4 µs to clamp transient overvoltage before downstream components fail. Use Value: 17 kA ITSM and 250 µs tq enable sub-cycle fault clearing; AlN isolation prevents ground-loop coupling during crowbar activation. | Use Scenario: Solid-state replacement of electromechanical contactors in HVAC zone control and industrial heating circuits. IC Role / Device Role / Timing Role: Bidirectional thyristor module switching 400–690 VAC loads with zero-crossing or phase-angle control. Use Value: Eliminates arcing and contact wear; 1000 V/µs dv/dt rating ensures noise immunity in shared-panel installations with VFDs. |
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 |
|---|---|---|---|
| TT500N16KOFHPSA2 | Higher VDRM/VRRM (1600–1800 V); identical ITAVM, RthJC, and package. | Better suited for 1000 VAC distribution systems or higher DC link voltages in traction converters. | Select when system peak line voltage exceeds 1200 V or long-term reliability at elevated blocking stress is required. |
| TD500N12KOFHPSA2 | Same voltage/current ratings but single-arm configuration; no dual-gate isolation. | Limited to half-wave or single-quadrant control; not suitable for B6 bridges or anti-parallel soft starters. | Choose only for cost-sensitive, lower-complexity rectifier designs where independent arm control is unnecessary. |
Compared with TT500N12KOFHPSA2, the TT500N16KOFHPSA2 offers extended blocking margin without thermal or footprint trade-offs, while the TD500N12KOFHPSA2 sacrifices dual-arm flexibility for simplified gate drive-making the TT500N12KOFHPSA2 optimal for full-bridge, crowbar, and bidirectional control where isolation and symmetry are mandatory.
Availability
TT500N12KOFHPSA2 is available at Aetrix Electronics and suitable for soft starters, drive rectifiers, crowbar protection circuits, and static switches requiring stable component supply, long-lifecycle support, and traceable industrial-grade sourcing.
Supply support for TT500N12KOFHPSA2 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 Advanced Medium Power Technology (AMPT) thyristor module product line, engineered for high-reliability phase control in demanding industrial drive, energy conversion, and grid-support applications.
FAQ
What is the maximum allowable junction temperature for TT500N12KOFHPSA2?
The maximum junction temperature (Tvj max) is 125°C, as specified in the official Infineon technical information document revision 3.6. This rating applies under steady-state conduction and defines the upper thermal limit for safe operation-exceeding it risks irreversible degradation of the silicon die and pressure-contact interface.
Does TT500N12KOFHPSA2 require external snubber circuits?
Snubbers are not mandatory due to its 1000 V/µs critical dv/dt rating and robust gate control characteristics, but may still be recommended in high-di/dt environments (e.g., transformer-coupled loads) to suppress voltage overshoot during commutation and ensure reliable turn-off in B6 bridge configurations.
Can TT500N12KOFHPSA2 be used in parallel configurations?
No-this module is not characterized or qualified for paralleling. Its pressure-contact construction and thermal coupling between arms make current sharing unpredictable; Infineon specifies single-module operation only, with derating applied for ambient or heatsink temperature deviations from 85°C case reference.
What is the gate drive power requirement for reliable triggering?
Each gate requires a peak pulse of ≥1 A at ≤2.2 V (VGT max) with ≥250 mA holding current (IH max), and must deliver ≥20 W for 10 ms (PGM curve 'a') to ensure turn-on under worst-case junction temperature (125°C) and voltage (12 V anode-cathode).
TT500N12KOFHPSA2 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:
- 1.2 kV
- Current - On State (It (AV)) (Max):
- 500 A
- Current - On State (It (RMS)) (Max):
- 900 A
- Voltage - Gate Trigger (Vgt) (Max):
- 2.2 V
- Current - Gate Trigger (Igt) (Max):
- 250 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 17000A @ 50Hz
- Current - Hold (Ih) (Max):
- 300 mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
TT500N12KOFHPSA2 FAQ
1.How can I place an order for TT500N12KOFHPSA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for TT500N12KOFHPSA2 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 TT500N12KOFHPSA2 reliable?
The price and inventory of TT500N12KOFHPSA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TT500N12KOFHPSA2 is usually 5 days.
3.What payment methods are accepted for TT500N12KOFHPSA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TT500N12KOFHPSA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TT500N12KOFHPSA2?
TT500N12KOFHPSA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TT500N12KOFHPSA2 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 TT500N12KOFHPSA2?
For technical support, including TT500N12KOFHPSA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TT500N12KOFHPSA2 requirements.
6.How does Aetrix verify that TT500N12KOFHPSA2 is sourced from the original manufacturer or authorized distributors?
All TT500N12KOFHPSA2 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 TT500N12KOFHPSA2 meets industry standards.
7.What is the process for return or replacement of TT500N12KOFHPSA2?
All TT500N12KOFHPSA2 units undergo pre-shipment inspection (PSI). If there is an issue with TT500N12KOFHPSA2, 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 TT500N12KOFHPSA2 part is unused and in its original packaging.
Return procedure for TT500N12KOFHPSA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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