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Infineon Technologies T640N12TOFXPSA1
- Part No.:
- T640N12TOFXPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- SCRs - Modules
- Package:
- DO-200AA, A-PUK
- Datasheet:
-
T640N12TOFXPSA1.pdf
- Description:
- SCR MODULE 1800V 1250A DO200AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,118
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Product details
Overview
T640N12TOFXPSA1 from Infineon Technologies is a phase-control thyristor designed for high-power AC line switching in industrial rectifiers, motor drives, and static VAR compensators. It delivers 1200 V repetitive peak off-state voltage (VDRM/VRRM), 644 A average on-state current at 85°C case temperature (ITAVM), and 9400 A non-repetitive surge current (ITSM) with 10 ms pulse width at 25°C junction temperature.
For engineers reviewing the T640N12TOFXPSA1 datasheet, T640N12TOFXPSA1 pinout, T640N12TOFXPSA1 application, or T640N12TOFXPSA1 equivalent, key selection criteria include gate trigger current (IGT ≤ 250 mA), critical dv/dt rating (1000 V/µs), thermal resistance (RthJC = 0.039 °C/W two-sided cooling), and commutated turn-off time (tq = 250 µs).
Technical Context
This thyristor operates as a latching, gate-controlled unidirectional switch in half-wave or full-wave AC phase control topologies. Its design supports forced-commutated circuits requiring precise firing-angle control, with validated latching current (IL ≤ 1200 mA) and holding current (IH ≤ 300 mA) under standard test conditions (vD = 12 V, iGM = 1 A, diG/dt = 1 A/µs).
The device features a silicon pellet with pressure-contact construction, rated for 125°C maximum junction temperature (Tvj max) and -40°C to +125°C operating case temperature range (Tc op). Thermal performance is specified for two-sided, anode-sided, and cathode-sided heatsink mounting configurations, with transient thermal impedance data provided for dynamic loss modeling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 1200 V - Maximum repetitive blocking voltage in forward and reverse directions, defining AC line voltage rating for 690 V RMS systems. |
| ITAVM @ TC = 85°C | 644 A - Continuous DC-equivalent conduction capability with two-sided heatsinking, used for thermal design of industrial rectifier stacks. |
| ITSM (10 ms) | 9400 A - Short-circuit withstand level at 25°C junction temperature, enabling coordination with fast-acting fuses in power converter protection schemes. |
| (dv/dt)cr | 1000 V/µs - Minimum rate-of-rise of off-state voltage before spurious turn-on, requiring snubber design for inductive loads. |
| tq (commutated) | 250 µs - Time required to regain blocking capability after current zero-crossing, critical for forced-commutation timing in cycloconverters. |
| RthJC (two-sided) | 0.039 °C/W - Junction-to-case thermal resistance with dual-face cooling, directly determining heatsink size for 644 A continuous operation. |
| IGT max | 250 mA - Maximum gate trigger current needed at 25°C and 12 V anode-cathode voltage, sizing gate driver output capability. |
Pinout & Package
Package: TO-240AA (also designated as "Press-Pack" or "Stud Mount") - a double-sided cooled, pressure-contact thyristor housing with isolated anode and cathode terminals and flat gate contact. Mechanical clamping force range: 6–12 kN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (1) | Main current entry terminal | Carries full load current into device; requires direct thermal interface to heatsink; electrically isolated from mounting surface. |
| Cathode (2) | Main current exit terminal | Completes main conduction path; also thermally coupled to heatsink; polarity defines forward conduction direction. |
| Gate (4) | Control input terminal | Triggers conduction when ≥250 mA pulse applied; low-impedance input requiring <2.2 V gate trigger voltage (VGT). |
| Auxiliary Cathode (5) | Secondary cathode connection | Provides low-inductance return path for gate drive current and improves triggering reliability in high-di/dt applications. |
Key Features
| Feature | Design Value |
|---|---|
| High surge current rating | 9400 A ITSM enables robust short-circuit handling without latch-up in motor soft-start circuits. |
| Low on-state voltage drop | 1.19 V at 600 A and Tvj max reduces conduction losses in high-current rectification stages. |
| Fast commutated turn-off | 250 µs tq supports high-frequency phase-controlled inverters up to 400 Hz switching. |
| High dv/dt immunity | 1000 V/µs critical rate allows operation with minimal snubbing in transformer-fed AC drives. |
| Pressure-contact thermal interface | 0.039 °C/W RthJC (two-sided) ensures predictable thermal performance across production batches without solder fatigue concerns. |
Applications
| Industrial Motor Drives | Medium-Voltage Rectifiers |
|---|---|
Use Scenario: Phase-controlled speed regulation of 3-phase induction motors in HVAC blowers and pump systems operating at 400–690 V AC. IC Role / Device Role / Timing Role: Main power switch in semi-controlled bridge configuration, triggered at variable firing angles to adjust RMS output voltage. Use Value: Enables smooth torque control with 644 A continuous current capacity and 1200 V blocking margin for 690 V grid interfaces. | Use Scenario: High-efficiency DC power supply for electroplating, welding, and traction battery charging at 500–1000 V DC output. IC Role / Device Role / Timing Role: Unidirectional conduction element in dual anti-parallel thyristor stacks, synchronized to AC line zero-crossings. Use Value: Delivers 1450 A RMS on-state current (ITRMS) with <1.2 V forward drop, minimizing system-level conduction losses. |
| Static VAR Compensators (SVC) | Grid-Tie Thyristor-Controlled Reactors |
Use Scenario: Reactive power compensation in utility substations using thyristor-switched capacitor banks and reactors. IC Role / Device Role / Timing Role: Precise firing-angle-controlled switch for rapid VAR injection/absorption during voltage sags or surges. Use Value: Achieves sub-microsecond gate delay consistency (tgd ≤ 4 µs) and 1000 V/µs dv/dt immunity for stable operation under distorted grid waveforms. | Use Scenario: Dynamic reactive power management in wind farm collector grids and rail traction substations. IC Role / Device Role / Timing Role: Line-synchronized reactor current controller that modulates inductive reactance via conduction angle adjustment. Use Value: Supports 250 µs commutated turn-off (tq) and 920 A ITAVM at 55°C case temperature for sustained duty-cycle operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar phase-control thyristor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| T640N14TOFXPSA1 | 1400 V VDRM/VRRM; identical package, thermal, and gate characteristics | Higher blocking voltage enables use in 750 V AC distribution systems where 1200 V margin is insufficient | Select when system peak line voltage exceeds 850 V RMS or transient overvoltages exceed 1200 V |
| T500N12TOFXPSA1 | 500 A ITAVM @ 85°C; same VDRM, RthJC, and tq; lower ITRMS (1100 A) | Reduced current rating limits use to lower-power converters or parallel configurations | Choose for cost-sensitive designs where 644 A headroom is unnecessary and thermal footprint must be minimized |
Compared with T640N14TOFXPSA1 and T500N12TOFXPSA1, the T640N12TOFXPSA1 provides optimal balance of 1200 V blocking, 644 A thermal current, and 9400 A surge capability-making it the default choice for 690 V industrial drives and rectifiers where voltage margin and current density are both critical.
Availability
T640N12TOFXPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, medium-voltage rectifiers, and static VAR compensators requiring stable component supply, long-term lifecycle support, and traceable manufacturing origin.
Supply support for T640N12TOFXPSA1 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 devices, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.
This thyristor belongs to Infineon's "Netz-Thyristor" product line, engineered specifically for high-reliability, high-current phase control in utility-scale power conversion, grid infrastructure, and heavy industrial equipment.
FAQ
What is the maximum allowable clamping force for T640N12TOFXPSA1?
The device requires mechanical clamping force between 6 kN and 12 kN to ensure reliable pressure-contact thermal and electrical interface. Exceeding 12 kN risks silicon die fracture or gate contact damage, while forces below 6 kN increase thermal resistance and risk hot-spot formation under full-load operation.
Does T640N12TOFXPSA1 support gate-turn-off (GTO) functionality?
No. T640N12TOFXPSA1 is a conventional phase-control thyristor and cannot be turned off by gate signal. Turn-off relies solely on natural current zero-crossing or external forced commutation circuits. It lacks GTO structure, gate-controlled turn-off capability, or integrated reverse-conducting elements.
Can T640N12TOFXPSA1 be used in DC applications?
Yes-as a DC static switch-but only with external means to interrupt current (e.g., series IGBT, mechanical breaker, or resonant commutation circuit). Its rated ITAVM and ITSM values apply to DC or sinusoidal conduction, but it cannot self-commutate in pure DC mode due to absence of gate-turn-off capability.
What gate drive voltage and current are required for reliable triggering?
A minimum gate trigger pulse of 2.2 V and 250 mA is guaranteed to initiate conduction at 25°C. For robust operation across temperature (-40°C to +125°C), a 10–15 V, 1 A peak gate drive with <1 µs rise time is recommended to ensure latching within 4 µs and avoid misfiring under high dv/dt stress.
T640N12TOFXPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- DO-200AA, A-PUK
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Structure:
- Single
- Number of SCRs, Diodes:
- 1 SCR
- Voltage - Off State:
- 1.8 kV
- Current - On State (It (AV)) (Max):
- 644 A
- Current - On State (It (RMS)) (Max):
- 1250 A
- Voltage - Gate Trigger (Vgt) (Max):
- 2.2 V
- Current - Gate Trigger (Igt) (Max):
- 250 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 9400A @ 50Hz
- Current - Hold (Ih) (Max):
- 300 mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Clamp On
T640N12TOFXPSA1 FAQ
1.How can I place an order for T640N12TOFXPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for T640N12TOFXPSA1 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 T640N12TOFXPSA1 reliable?
The price and inventory of T640N12TOFXPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T640N12TOFXPSA1 is usually 5 days.
3.What payment methods are accepted for T640N12TOFXPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T640N12TOFXPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T640N12TOFXPSA1?
T640N12TOFXPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T640N12TOFXPSA1 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 T640N12TOFXPSA1?
For technical support, including T640N12TOFXPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T640N12TOFXPSA1 requirements.
6.How does Aetrix verify that T640N12TOFXPSA1 is sourced from the original manufacturer or authorized distributors?
All T640N12TOFXPSA1 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 T640N12TOFXPSA1 meets industry standards.
7.What is the process for return or replacement of T640N12TOFXPSA1?
All T640N12TOFXPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with T640N12TOFXPSA1, 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 T640N12TOFXPSA1 part is unused and in its original packaging.
Return procedure for T640N12TOFXPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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