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Infineon Technologies T1401N42TOHXPSA1
- Part No.:
- T1401N42TOHXPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- SCRs - Modules
- Package:
- TO-200AF
- Datasheet:
-
T1401N42TOHXPSA1.pdf
- Description:
- SCR MODULE 4400V 2500A DO200AE
- Quantity:
- Payment:
- Shipping:
Inventory:8,896
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Product details
Overview
T1401N42TOHXPSA1 from Infineon Technologies is a phase-control thyristor designed for medium-voltage AC power switching in static var compensators (SVC), soft starters, and drive rectifiers. It delivers 4200 V repetitive peak off-state voltage (VDRM/VRRM), 1590 A average on-state current at 85°C (ITAVM), and withstands 40 kA surge current (ITSM) with 300 A/µs critical di/dt capability.
For engineers reviewing the T1401N42TOHXPSA1 datasheet, T1401N42TOHXPSA1 pinout, T1401N42TOHXPSA1 application, or T1401N42TOHXPSA1 equivalent, key selection criteria include clamping force range (36–52 kN), two-sided thermal resistance (9.0 K/kW), gate trigger current ≤350 mA, and transient recovery behavior (Qr ≤7 mAs, tq ≤350 µs).
Technical Context
This thyristor operates as a line-commutated, gate-controlled power switch in high-power AC phase-angle control circuits. Its design supports bidirectional blocking at 4200 V under 50/60 Hz line frequencies across –40°C to +125°C junction temperature, with full DC blocking stability and high non-rupture case current.
The device uses a silicon pellet with pressure-contact packaging, requiring precise mechanical clamping (36–52 kN) to maintain thermal and electrical integrity. Its gate triggering is optimized for low-energy turn-on (IGT ≤350 mA, VGT ≤2.5 V) and robust immunity to false triggering (IGD ≤20 mA, VGD ≤0.4 V at max junction temperature).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 4200 V - maximum repetitive peak forward/reverse blocking voltage at rated temperature, enabling use in 3.3 kV AC systems with safety margin. |
| ITAVM (TC = 85°C) | 1590 A - continuous average on-state current rating, defining steady-state conduction capability in forced-cooled applications. |
| ITSM (10 ms, Tvj = 25°C) | 40000 A - short-circuit surge current rating, determining fault-withstand capability during grid transients or motor starting. |
| (diT/dt)cr | 300 A/µs - minimum required commutation di/dt to ensure reliable turn-on without secondary breakdown. |
| RthJC (two-sided) | 9.0 K/kW - thermal resistance from junction to case under dual-side cooling, directly sizing heatsink thermal mass and interface requirements. |
| vT0 / rT | 1.29 V / 0.33 mΩ - threshold voltage and slope resistance, defining conduction loss profile (vT ≈ vT0 + rT·iT) up to 2500 A. |
| Qr (recovered charge) | 7 mAs - reverse recovery charge during commutation, influencing snubber design and commutation circuit losses in inverters and SVCs. |
Pinout & Package
Package: Press-pack, double-sided cooled, disc-type thyristor with 121 mm outer diameter, 86 mm contact diameter, and 35 mm height. Requires controlled clamping force of 36–52 kN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (1) | Main current terminal (positive conduction path) | High-current DC or AC line connection; must be thermally and mechanically coupled to heatsink surface. |
| Cathode (2) | Main current terminal (negative conduction path) | Primary return path for on-state current; electrically isolated but thermally coupled in two-sided cooling configuration. |
| Gate (4) | Control input for turn-on initiation | Low-energy trigger interface (≤350 mA, ≤2.5 V); requires noise-immune gate drive with fast rise time (>6 A/µs diG/dt). |
| Hilfskathode / Auxiliary Cathode (5) | Secondary gate reference terminal | Provides dedicated low-impedance cathode reference for gate drive circuitry, improving noise immunity and triggering reliability. |
Key Features
| Feature | Design Value |
|---|---|
| Full 50/60 Hz blocking over –40°C to +125°C | Ensures uninterrupted operation in outdoor substations and industrial environments without derating at temperature extremes. |
| High di/dt capability (300 A/µs) | Supports rapid turn-on in high-inductance circuits like medium-voltage drives without requiring external dv/dt snubbers. |
| Two-sided cooling interface (RthJC = 9.0 K/kW) | Enables symmetrical heat extraction from both anode and cathode surfaces, doubling effective thermal capacity vs. single-sided packages. |
| High case non-rupture current | Withstands mechanical stress from 40 kA surge without housing fracture-critical for fault-tolerant SVC and soft starter designs. |
| Gate-controlled delay time ≤2 µs | Permits precise phase-angle control resolution (<0.036° at 50 Hz), essential for harmonic-sensitive reactive power regulation. |
Applications
| Medium Voltage Softstarter | Static Var Compensation (SVC) |
|---|---|
Use Scenario: Controlled ramp-up of induction motors in mining conveyors or HVAC fans operating at 3.3 kV. IC Role / Device Role / Timing Role: Phase-controlled AC switch regulating RMS voltage applied to motor stator windings. Use Value: Reduces inrush current to <3× FLC and eliminates mechanical shock by limiting torque via precise gate firing angle (0–180°). | Use Scenario: Dynamic reactive power injection in utility transmission substations to stabilize grid voltage during load swings. IC Role / Device Role / Timing Role: Bidirectional thyristor pair in TCR (Thyristor-Controlled Reactor) branch, switched at zero-crossing for VAR modulation. Use Value: Enables ±500 kVAR stepless adjustment within 10 ms response time using 4200 V blocking and 1590 A conduction capability. |
| Drive Rectifier for MV Drives | Load Commutated Inverter (LCI) |
Use Scenario: Front-end AC/DC conversion in 6-pulse or 12-pulse configurations for synchronous motor drives in marine propulsion. IC Role / Device Role / Timing Role: Line-commutated rectifier thyristor conducting 1590 A RMS at 50/60 Hz with natural commutation from supply voltage zero crossings. Use Value: Delivers >98% conversion efficiency with conduction losses defined by vT0 = 1.29 V and rT = 0.33 mΩ up to 2500 A peak. | Use Scenario: Inverter stage in high-power synchronous motor drives where load inductance enables forced commutation. IC Role / Device Role / Timing Role: Main switching element turned off by load current reversal; relies on tq ≤350 µs and Qr ≤7 mAs for safe commutation margin. Use Value: Supports 40 kA surge-rated operation during motor field excitation faults while maintaining <0.5% harmonic distortion in output waveform. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar phase-control thyristor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TT1401N42KOF | Same VDRM/VRRM (4200 V), identical ITAVM (1590 A), but rated for 100°C case temperature and uses different clamping interface (KOF flange). | Designed for single-sided heatsink mounting; lacks auxiliary cathode terminal (pin 5), reducing gate noise immunity in EMI-heavy environments. | Select when mechanical integration favors flanged mounting and gate drive isolation is handled externally. |
| STT1401N42TOF | 4200 V blocking, 1600 A ITAVM, but higher RthJC (10.5 K/kW) and lower ITSM (38 kA); no auxiliary cathode. | Optimized for cost-sensitive industrial drives with less stringent surge or thermal cycling requirements. | Choose only if system-level surge margin exceeds 5% and thermal design allows +1.5 K/kW penalty in junction-to-case resistance. |
Compared with TT1401N42KOF and STT1401N42TOF, T1401N42TOHXPSA1 provides superior gate noise immunity via auxiliary cathode (pin 5), tighter thermal performance (9.0 K/kW), and verified 40 kA/10 ms surge rating-making it preferred for mission-critical SVC and soft starter deployments.
Availability
T1401N42TOHXPSA1 is available at Aetrix Electronics and suitable for medium-voltage soft starters, static var compensation (SVC) systems, and drive rectifiers requiring stable component supply, long-life mechanical reliability, and certified surge performance.
Supply support for T1401N42TOHXPSA1 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 IATF 16949 and ISO 9001.
This part belongs to Infineon's "Netz-Thyristor" series, engineered specifically for high-reliability, high-power AC phase control in utility-grade static compensators, motor soft starters, and medium-voltage drive systems.
FAQ
What is the required clamping force for T1401N42TOHXPSA1?
The device requires a controlled mechanical clamping force between 36 kN and 52 kN to ensure optimal thermal contact, low contact resistance, and structural integrity under surge conditions. Force outside this range risks increased RthJC, premature failure, or housing deformation. Torque specifications depend on the specific press-pack mounting kit used.
Does T1401N42TOHXPSA1 support asymmetrical cooling?
No-this thyristor is specified and characterized exclusively for two-sided (anode + cathode) cooling. Asymmetrical or single-sided cooling violates its thermal rating (RthJC = 9.0 K/kW applies only to dual-surface heat extraction) and may cause localized hot-spotting exceeding 125°C junction limit, leading to premature wear-out or catastrophic failure.
How does the auxiliary cathode (terminal 5) improve gate drive performance?
Terminal 5 provides a dedicated, low-inductance cathode reference point for the gate driver, decoupling gate return current from main cathode conduction paths. This reduces common-mode noise coupling, improves triggering consistency under high dv/dt conditions, and prevents false turn-on during commutation transients-especially critical in multi-thyristor stacks used in SVCs.
Can T1401N42TOHXPSA1 be used in DC applications?
Yes-it maintains full DC blocking stability up to 4200 V, validated per IEC 60747-6. However, DC operation requires active forced commutation (e.g., via auxiliary circuits) since the device lacks intrinsic turn-off capability. Continuous DC conduction must respect ITAVM derating curves and ensure junction temperature remains ≤125°C with verified two-sided cooling.
T1401N42TOHXPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-200AF
- Packaging:
- Tray
- Product Status:
- Active
- Structure:
- Single
- Number of SCRs, Diodes:
- 1 SCR
- Voltage - Off State:
- 4.4 kV
- Current - On State (It (AV)) (Max):
- 2290 A
- Current - On State (It (RMS)) (Max):
- 2500 A
- Voltage - Gate Trigger (Vgt) (Max):
- 2.5 V
- Current - Gate Trigger (Igt) (Max):
- 350 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 40000A @ 50Hz
- Current - Hold (Ih) (Max):
- 350 mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
T1401N42TOHXPSA1 FAQ
1.How can I place an order for T1401N42TOHXPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for T1401N42TOHXPSA1 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 T1401N42TOHXPSA1 reliable?
The price and inventory of T1401N42TOHXPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T1401N42TOHXPSA1 is usually 5 days.
3.What payment methods are accepted for T1401N42TOHXPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T1401N42TOHXPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T1401N42TOHXPSA1?
T1401N42TOHXPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T1401N42TOHXPSA1 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 T1401N42TOHXPSA1?
For technical support, including T1401N42TOHXPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T1401N42TOHXPSA1 requirements.
6.How does Aetrix verify that T1401N42TOHXPSA1 is sourced from the original manufacturer or authorized distributors?
All T1401N42TOHXPSA1 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 T1401N42TOHXPSA1 meets industry standards.
7.What is the process for return or replacement of T1401N42TOHXPSA1?
All T1401N42TOHXPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with T1401N42TOHXPSA1, 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 T1401N42TOHXPSA1 part is unused and in its original packaging.
Return procedure for T1401N42TOHXPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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