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Infineon Technologies TD250N12KOFHPSA1
- Part No.:
- TD250N12KOFHPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- SCRs - Modules
- Package:
- Module
- Datasheet:
-
TD250N12KOFHPSA1.pdf
- Description:
- SCR MODULE 1800V 410A MODULE
- Quantity:
- Payment:
- Shipping:
Inventory:7,582
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Product details
Overview
TD250N12KOFHPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line switching and rectification in industrial drive systems. It features 1200 V repetitive peak off-state voltage (VDRM/VRRM), 250 A average on-state current at TC = 85 °C, 9100 A non-repetitive surge current, and electrically insulated baseplate construction. It is deployed in soft starters, static switches, and battery charger rectifiers where robust thermal performance and pressure-contact reliability are critical.
For engineers reviewing the TD250N12KOFHPSA1 datasheet, TD250N12KOFHPSA1 pinout, TD250N12KOFHPSA1 application, or TD250N12KOFHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.124 K/W), gate trigger current (≤200 mA), critical dv/dt rating (1000 V/µs), and pre-applied TIM option - all essential for thermal design, gate drive sizing, and commutation stability in high-current phase-controlled converters.
Technical Context
This thyristor module implements a dual-arm, press-pack (pressure contact) structure with silicon pellets mounted on an AlN-insulated copper baseplate. It operates in natural- or forced-commutated configurations, supporting conduction angles from 30° to 180°, and delivers stable turn-on behavior with ≤3 µs gate delay time and ≥150 A/µs critical di/dt rating.
Thermal management is enabled by low RthJC (0.124 K/W per module, DC), RthCH (0.02 K/W), and optional pre-applied TIM reducing interface resistance to 0.015 K/W. Its 3.0 kV RMS insulation test voltage ensures safety in grounded-heatsink industrial installations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 1200 V - Maximum repetitive blocking voltage per arm; defines safe AC line voltage rating up to 850 V RMS. |
| ITAVM (TC = 85 °C) | 250 A - Continuous average on-state current per arm; sets steady-state power handling capability in phase-controlled rectifiers. |
| ITSM (10 ms) | 9100 A - Non-repetitive surge current; determines short-circuit withstand in motor soft-start and crowbar protection. |
| RthJC | 0.124 K/W - Junction-to-case thermal resistance; enables accurate heatsink sizing for 125 °C max junction temperature operation. |
| (dv/dt)cr | 1000 V/µs - Critical rate of rise of off-state voltage; defines minimum snubber requirements to prevent false triggering. |
| VTO / rT | 0.8 V / 0.7 mΩ - Threshold voltage and slope resistance; determines forward conduction loss profile under high-current load. |
| IGT / VGT | ≤200 mA / ≤2 V - Gate trigger current and voltage at 12 V anode voltage; defines minimum gate driver output capability. |
| tq | 250 µs - Circuit commutated turn-off time; constrains maximum operating frequency in forced-commutated inverters. |
Pinout & Package
TD250N12KOFHPSA1 is housed in an industrial-standard press-pack module with electrically insulated baseplate (AlN ceramic), 50 mm × 50 mm footprint, and M1 (5 Nm) mechanical mounting points. Terminals are arranged for dual-arm configuration: two main anode/cathode pairs and isolated gate terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1, K1 | Main anode/cathode pair (Arm 1) | Carries full-phase current in one leg of bridge or series-connected thyristor string; rated for 250 A avg. |
| A2, K2 | Main anode/cathode pair (Arm 2) | Independent second arm enabling full-bridge (B6) or anti-parallel configurations without external isolation. |
| G1, K1 | Gate terminal for Arm 1 | Isolated low-power control input; requires ≤2 V, ≤200 mA pulse to initiate conduction in Arm 1. |
| G2, K2 | Gate terminal for Arm 2 | Electrically separate gate path; allows independent triggering of Arm 2 for asymmetrical control or redundancy. |
Key Features
| Feature | Design Value |
|---|---|
| Pressure contact technology | Eliminates wire bonds and solder layers, delivering >10⁶ cycle lifetime and stable RthJC under thermal cycling. |
| Electrically insulated baseplate | AlN ceramic isolation (3.0 kV RMS, 1 min) enables direct mounting to grounded heatsinks without additional insulation. |
| Pre-applied TIM option | Reduces case-to-heatsink thermal resistance to 0.015 K/W, cutting thermal impedance by 25% vs. standard mounting. |
| High dv/dt immunity | 1000 V/µs critical off-state voltage rise rate supports operation in noisy industrial environments without false turn-on. |
| Low conduction loss | 0.8 V threshold + 0.7 mΩ slope yields <1.4 V on-state drop at 800 A, minimizing power loss in high-current rectifiers. |
Applications
| Soft Starter | Rectifier for Drives |
|---|---|
|
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 AC voltage amplitude via firing angle modulation. Use Value: Enables smooth torque delivery and extends motor life; leverages 9100 A ITSM to absorb startup surges without derating. |
Use Scenario: AC-to-DC conversion in variable-frequency drive front-ends supplying DC bus for IGBT inverter stages. IC Role / Device Role / Timing Role: High-current, high-voltage rectifying element in B6 six-pulse bridge configuration. Use Value: Supports 450 A output current at RthCA = 0.12 K/W; low RthJC (0.124 K/W) maintains junction temp ≤125 °C under continuous load. |
| Crowbar Protection | Battery Charger Rectifier |
|
Use Scenario: Fast-acting overvoltage protection in UPS or power supply systems by shorting output upon fault detection. IC Role / Device Role / Timing Role: High-current thyristor triggered into hard conduction to divert fault energy away from sensitive loads. Use Value: 250 µs tq and 9100 A ITSM allow reliable crowbar action within 1–2 AC cycles; insulated baseplate prevents ground loop faults. |
Use Scenario: High-efficiency AC/DC conversion in industrial battery charging systems for EV fleets or telecom backup banks. IC Role / Device Role / Timing Role: Primary rectifying device in phase-controlled charger topology with adjustable output voltage via firing angle. Use Value: 0.8 V VTO and 0.7 mΩ rT reduce conduction losses by ~15% vs. legacy modules, improving charger efficiency at 250 A nominal output. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar phase-control thyristor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TT250N12KOFHPSA1 | Same die, identical VDRM/ITAVM, but non-insulated baseplate (no AlN); RthJC = 0.062 K/W (per arm, DC). | Requires external isolation kit for grounded heatsink use; preferred where thermal priority outweighs safety isolation. | Select when system-level insulation is already implemented and lower thermal resistance is critical. |
| TD250N16KOFHPSA1 | Higher VDRM/VRRM (1600 V); otherwise identical package, thermal, and gate specs. | Suitable for 1000 V AC line systems (e.g., medium-voltage drives); same footprint and mounting. | Choose for 690–1000 V AC input applications requiring margin against transients and aging. |
Compared with TT250N12KOFHPSA1, TD250N12KOFHPSA1 trades slightly higher RthJC for built-in safety isolation-critical in ungrounded or Class I equipment-while TD250N16KOFHPSA1 extends voltage headroom without altering thermal or mechanical integration.
Availability
TD250N12KOFHPSA1 is available at Aetrix Electronics and suitable for soft starter systems, industrial drive rectifiers, and battery charger designs requiring stable component supply, long-life pressure-contact reliability, and certified 3.0 kV isolation.
Supply support for TD250N12KOFHPSA1 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 renewable energy markets.
This part belongs to Infineon's "Netz-Thyristor-Modul" product line, engineered specifically for high-reliability, high-current phase control in industrial power conversion-emphasizing pressure-contact longevity, thermal robustness, and system-level safety compliance.
FAQ
What is the maximum allowable junction temperature for TD250N12KOFHPSA1?
The maximum junction temperature (Tvj max) is 125 °C, as specified in the Infineon technical information document revision 3.6. This limit applies under all operating conditions including repetitive and non-repetitive current stresses, and must be maintained using appropriate heatsinking and thermal interface materials to ensure long-term reliability.
Does TD250N12KOFHPSA1 require external snubbers?
Yes - due to its 1000 V/µs critical dv/dt rating, external RC snubbers are recommended for operation above 400 V line voltage or in circuits with inductive loads. Snubber design must ensure voltage overshoot remains below 1200 V to prevent unintended turn-on, especially during commutation events.
Can TD250N12KOFHPSA1 be used in parallel configurations?
No - this module is not characterized or qualified for paralleling. Its pressure-contact design and inherent parameter spread (e.g., VTO, tq) make current sharing unreliable without active balancing. For higher current needs, use multi-module B6 bridges with individual gate timing control instead of paralleled arms.
What is the meaning of "KOFHPSA1" in the part number?
Per Infineon's short-form catalog nomenclature: K = 1200 V VDRM, O = 250 µs tq, F = 1000 V/µs (dv/dt)cr, H = insulated baseplate (AlN), P = pre-applied TIM, S = standard mounting holes, A1 = revision level. Each letter encodes a verified electrical or mechanical specification.
TD250N12KOFHPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Tray
- Product Status:
- Obsolete
- Structure:
- Series Connection - SCR/Diode
- Number of SCRs, Diodes:
- 1 SCR, 1 Diode
- Voltage - Off State:
- 1.8 kV
- Current - On State (It (AV)) (Max):
- 250 A
- Current - On State (It (RMS)) (Max):
- 410 A
- Voltage - Gate Trigger (Vgt) (Max):
- 2 V
- Current - Gate Trigger (Igt) (Max):
- 200 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 8000A @ 50Hz
- Current - Hold (Ih) (Max):
- 300 mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
TD250N12KOFHPSA1 FAQ
1.How can I place an order for TD250N12KOFHPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TD250N12KOFHPSA1 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 TD250N12KOFHPSA1 reliable?
The price and inventory of TD250N12KOFHPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TD250N12KOFHPSA1 is usually 5 days.
3.What payment methods are accepted for TD250N12KOFHPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TD250N12KOFHPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TD250N12KOFHPSA1?
TD250N12KOFHPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TD250N12KOFHPSA1 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 TD250N12KOFHPSA1?
For technical support, including TD250N12KOFHPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TD250N12KOFHPSA1 requirements.
6.How does Aetrix verify that TD250N12KOFHPSA1 is sourced from the original manufacturer or authorized distributors?
All TD250N12KOFHPSA1 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 TD250N12KOFHPSA1 meets industry standards.
7.What is the process for return or replacement of TD250N12KOFHPSA1?
All TD250N12KOFHPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TD250N12KOFHPSA1, 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 TD250N12KOFHPSA1 part is unused and in its original packaging.
Return procedure for TD250N12KOFHPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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