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Thyristors - SCRs - Modules

Image Part Number Description / PDF Quantity Rfq
TD60N16SOFHPSA1

TD60N16SOFHPSA1

IR (Infineon Technologies)

SCR MODULE 1600V 90A MODULE

10
TD190N18SOFHPSA1

TD190N18SOFHPSA1

IR (Infineon Technologies)

SCR MODULE 1800V 275A MODULE

8
TD140N22KOFHPSA1

TD140N22KOFHPSA1

IR (Infineon Technologies)

SCR MODULE 2200V 250A MODULE

0
TT330N12KOFHPSA2

TT330N12KOFHPSA2

IR (Infineon Technologies)

THYR / DIODE MODULE DK

0
TT250N16KOFTIMHPSA1

TT250N16KOFTIMHPSA1

IR (Infineon Technologies)

SCR MODULE 1800V 410A MODULE

3
TZ810N22KOFHPSA2

TZ810N22KOFHPSA2

IR (Infineon Technologies)

SCR MODULE 2.2KV 1500A MODULE

2
STT800N16P55XPSA1

STT800N16P55XPSA1

IR (Infineon Technologies)

SCR MODULE POWERBLOCK PS55-1

1
TT140N16SOFHPSA1

TT140N16SOFHPSA1

IR (Infineon Technologies)

SCR MODULE 1600V 220A MODULE

0
TT92N16KOFKHPSA1

TT92N16KOFKHPSA1

IR (Infineon Technologies)

PHASE CONTROL THYRISTOR MODULE

15
ETD420N22P60HPSA1

ETD420N22P60HPSA1

IR (Infineon Technologies)

THYR / DIODE MODULE DK

4
TD142N12KOFHPSA1

TD142N12KOFHPSA1

IR (Infineon Technologies)

SILICON CONTROLLED RECTIFIER, 23

16
TD600N16KOFTIMHPSA1

TD600N16KOFTIMHPSA1

IR (Infineon Technologies)

SCR MODULE 1600V 1050A MODULE

1
TZ800N18KOFB1HPSA2

TZ800N18KOFB1HPSA2

IR (Infineon Technologies)

SCR MODULE 1800V 1500A MODULE

0
TT500N16KOFTIMHPSA1

TT500N16KOFTIMHPSA1

IR (Infineon Technologies)

SCR MODULE 1800V 900A MODULE

14
TT120N16SOFHPSA1

TT120N16SOFHPSA1

IR (Infineon Technologies)

SCR MODULE 1.6V 190A MODULE

34
TD140N18KOFHPSA1

TD140N18KOFHPSA1

IR (Infineon Technologies)

SCR MODULE 2200V 250A MODULE

0
TT60N16SOFHPSA1

TT60N16SOFHPSA1

IR (Infineon Technologies)

SCR MODULE 1.6KV 90A MODULE

12
ETD480N22P60HPSA1

ETD480N22P60HPSA1

IR (Infineon Technologies)

THYR / DIODE MODULE DK

8
TD251N18KOFHPSA1

TD251N18KOFHPSA1

IR (Infineon Technologies)

SCR MODULE 1800V 410A MODULE

0
TD251N16KOFHPSA1

TD251N16KOFHPSA1

IR (Infineon Technologies)

SCR MODULE 1800V 410A MODULE

0

Thyristors - SCRs - Modules

1. Overview

Silicon Controlled Rectifiers (SCRs) are four-layer (PNPN) semiconductor devices that act as controlled switches for high-power applications. As key members of the thyristor family, SCR modules enable precise control of electrical power in industrial systems. Their ability to handle high voltages (>6000V) and currents (>5000A) makes them indispensable in power electronics, particularly for AC/DC conversion, motor speed control, and load management systems.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Single-phase SCR ModuleCompact design with integrated snubber circuitrySingle-phase motor controllers, heating systems
Three-phase SCR Module6-pack configuration for 3-phase power controlVariable frequency drives, industrial furnaces
Reverse-Conducting SCR (RC-SCR)Integrated freewheeling diode for inductive loadsTraction converters, welding equipment
Light-Triggered SCR (LTSCR)Optical gate activation for high-noise environmentsHigh-voltage DC transmission systems
SCR Power Stack ModuleMulti-chip parallel configuration for extreme currentsElectrolysis plants, large motor soft starters

3. Structure and Composition

Typical SCR module construction includes:

  • Die-level PNPN junction semiconductor (silicon base)
  • DBC (Direct Bonded Copper) substrate for thermal management
  • Gate control circuit with trigger transformer isolation
  • Press-pack or soldered housing with IP54 protection rating
  • Dielectric cooling interface ( silicone pad or phase-change material)

Advanced modules integrate temperature sensors and MOV-based overvoltage protection.

4. Key Technical Specifications

ParameterTypical RangeImportance
Rated Repetitive Peak Voltage (VRRM)600V - 6500VDetermines maximum operating voltage
Rated Average On-state Current (ITAV)25A - 3000ADefines continuous load capacity
Gate Trigger Current (IGT)50 A - 50mAAffects control circuit design
dv/dt Capability10-500 V/ sIndicates immunity to voltage spikes
Thermal Resistance (Rth)0.01-0.5 K/WImpacts cooling requirements

5. Application Fields

Primary industries utilizing SCR modules:

  • Industrial: Motor drives (cranes, mills), welding machines, heating controllers
  • Energy: HVDC transmission, static VAR compensators, battery charging systems
  • Transportation: Traction converters for trains, EV charging stations
  • Utilities: Smart grid power flow controllers, uninterruptible power supplies

Case Study: 3 MW wind turbine converter using 1700V/1200A SCR modules achieves 98.5% conversion efficiency.

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
ABB5SNA 2400K1703001700V/2400A, press-pack design, 50kA short-circuit rating
ON SemiconductorCM400HA-34H1600V/400A, hockey puck package, <2V forward voltage
InfineonB25801-A10471200V/800A, integrated heat sink, RoHS compliant
Mitsubishi ElectricPM100CL1A-1201200V/100A, low inductance package, 150 C operating temp

7. Selection Guidelines

Key considerations:

  1. Derate ITAV by 20-30% for safety margin
  2. Select VRRM 1.5 system peak voltage
  3. Match gate drive circuit to IGT specifications
  4. Consider thermal interface material (TIM) performance
  5. Verify short-circuit withstand capability

Recommend consulting manufacturer's SOA (Safe Operating Area) curves for critical applications.

Industry Trends

Emerging developments:

  • SiC-based SCR prototypes enabling 3 higher switching frequencies
  • Smart power modules with embedded current/voltage sensors
  • Double-sided cooling packages reducing thermal resistance by 40%
  • Grid-forming SCR systems for renewable energy integration
  • Lead-free packaging compliant with REACH regulations
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