INFINEON TT430N22KOF – 430A / 2200V High-Power Thyristor Module | INFINEON SEMIPACK Series
Engineering Background
The TT430N22KOF is a dual thyristor (SCR) module from INFINEON Technologies’ SEMIPACK platform, engineered for demanding industrial power conversion applications. Rated at 430 A average on-state current (ITAV) and 2200 V repetitive peak off-state voltage (VDRM), this module is purpose-built for high-power AC/DC rectification, phase-control drives, and soft-start systems operating in harsh industrial environments.
Product Positioning
Konmask.com supplies the TT430N22KOF to procurement engineers and MRO buyers who require traceable, specification-accurate thyristor modules for critical power infrastructure. Every unit is sourced through verified distribution channels and undergoes incoming inspection before dispatch.
Complete Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | TT430N22KOF |
| Manufacturer | INFINEON Technologies AG |
| Module Type | Dual Thyristor (SCR) Module |
| Configuration | Common Cathode / Common Anode (dual) |
| Average On-State Current (ITAV) | 430 A |
| Repetitive Peak Off-State Voltage (VDRM) | 2200 V |
| Peak On-State Voltage (VTM) | ≤ 1.87 V @ 860 A |
| Holding Current (IH) | 250 mA (typ.) |
| Gate Trigger Current (IGT) | 150 mA (max.) |
| Gate Trigger Voltage (VGT) | 3 V (max.) |
| Critical Rate of Rise of Off-State Voltage (dv/dt) | 1000 V/µs (min.) |
| Thermal Resistance Junction-to-Case (Rth(j-c)) | 0.055 K/W (per thyristor) |
| Operating Junction Temperature (Tj) | -40°C to +125°C |
| Storage Temperature (Tstg) | -40°C to +125°C |
| Isolation Voltage (Visol) | 3600 V (RMS) |
| Package / Housing | SEMIPACK 3 (SOT-227B compatible footprint) |
| Mounting Torque | 3 N·m (M6 screw) |
| Weight | approx. 1000 g (with heatsink hardware) |
| RoHS Compliance | Yes |
Proven Application Environments
- Three-phase fully-controlled bridge rectifiers (B6C topology)
- AC motor soft-start and speed control drives
- DC motor field and armature current controllers
- Resistance welding power supplies
- Electrochemical process rectifiers (plating, electrolysis)
- UPS and static transfer switch (STS) systems
- Induction heating power stages
- Railway auxiliary power converters
Engineering Advantages
- High blocking voltage margin: 2200 V VDRM provides robust derating headroom in 690 V AC bus systems.
- Low thermal resistance: Rth(j-c) of 0.055 K/W per element enables high continuous current density with standard forced-air or liquid cooling.
- High dv/dt immunity: ≥ 1000 V/µs rated, minimising false triggering in noisy industrial environments.
- SEMIPACK 3 form factor: Industry-standard footprint ensures drop-in compatibility with existing heatsink assemblies and busbars.
- Isolated baseplate: 3600 VRMS isolation simplifies system insulation coordination and reduces creepage design burden.
- Dual-element integration: Two thyristors in one package reduces component count, assembly time, and PCB/busbar real estate.
System Architecture & Signal Flow
In a standard three-phase fully-controlled rectifier, three TT430N22KOF modules (six thyristors total) form the complete B6C bridge. Gate pulses from the firing control board are applied sequentially at the desired firing angle (α), controlling the average DC output voltage from Vdc,max down to zero. The high dv/dt rating and low gate sensitivity of the TT430N22KOF ensure stable commutation across the full firing angle range, even under line-voltage transients.
For soft-start applications, the module is typically paired with a dedicated SCR firing board (e.g., INFINEON SIMOREG or equivalent) that ramps α from 150° to 0° over a programmable acceleration time, limiting inrush current to the motor or transformer load.
Sourcing & Quality Verification
- Origin: Sourced from authorised INFINEON distribution channels and verified MRO suppliers.
- Incoming Inspection: Each unit is visually inspected and date-code verified prior to dispatch.
- Traceability: Lot number and date code documentation available on request.
- Packaging: Anti-static tray or original OEM packaging; moisture-barrier bag with desiccant for long-term storage.
- Counterfeit Mitigation: Physical marking, laser engraving, and package geometry cross-checked against INFINEON published datasheets.
Procurement Process
- Add TT430N22KOF to cart and complete checkout, or contact us for volume pricing.
- Receive order confirmation with estimated lead time (typically 3–7 business days for in-stock units).
- Shipment dispatched with tracking number; export documentation (commercial invoice, packing list, COO) included for international orders.
- Post-delivery technical support available via email or phone.
Technical FAQ
Q: Can the TT430N22KOF replace the TT430N20KOF?
A: Yes, with caution. The 22KOF is rated 2200 V vs. 2000 V for the 20KOF. It is a direct upgrade in blocking voltage; gate and thermal parameters are identical. Verify heatsink and busbar clearances remain adequate.
Q: What heatsink is recommended?
A: For continuous 430 A operation at Tj = 125°C with Tambient = 40°C, a heatsink with Rth(h-a) ≤ 0.03 K/W is required with forced-air cooling. Consult INFINEON Application Note AN2011-05 for detailed thermal design guidance.
Q: Is a snubber circuit required?
A: A RC snubber (typically 0.1 µF / 100 Ω) across each thyristor is recommended in applications with high line-side inductance or fast-switching loads to protect against voltage spikes exceeding VDRM.
Q: What is the minimum order quantity?
A: MOQ is 1 piece. Volume discounts apply for orders of 5+ units. Contact us for a formal quotation.
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