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Thyristor Module

In its most basic form, a thyristor is a solid-state power semiconductor device with four alternating layers of P-type and N-type semiconductor material. A thyristor acts as a bistable switch, conducting (i.e. turning-on) when its gate receives a current pulse. A thyristor continues to conduct as long as it is forward-biased (until the voltage across the device is reversed). Thyristors are synonymous with silicon controlled rectifiers (SCRs).

Thyristor Modules include one or more thyristors and, in some cases, other power semiconductor devices, such as diodes. Thyristor module packages are electrically isolated, and usually include metal base-plates (sometimes copper) and a DCB Alumina substrate (Al2O3 Insulator). Thyristors can cycle an amazing amount of power, with voltage ratings typically between 300 – 2,400 volts and current ratings from 25 – 3,080 amps. Most Thyristor Modules are UL Recognized.

Applications for Thyristor Modules include Bridge Circuits, AC Motor Drives, DC Braking, Battery Chargers, Power Supplies, Large IGBT Front End Circuits, Lighting Control, Heat/Temperature Controls (for large commercial ovens, chemical processes, etc.), and Welders.

Specific attributes which are important in selecting the right Thyristor Module for your application include: Configuration - Single, Dual, AC Switch, Anti-Parallel Pair, Pair Common Anode, Phase Leg (Series Pair), Dual Anti-Parallel Pair, Triple Anti-Parallel Pair, 3-phase Bridge Rectifier + Series Thyristor, and many more configurations available; Voltage Rating (V); Current Rating (A); and Package Type.

Richardson RFPD maintains a robust selection of Thyristor Modules from Mitsubishi, Powerex, and Semikron.

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CD430890BCD430890BPowerexThyristor Module 50+ $29.04
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CD431290BCD431290BPowerexThyristor Module 50+ $29.04
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CD431690BCD431690BPowerexThyristor Module 1+ $27.65
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CD630815BCD630815BPowerexThyristor Module 50+ $52.74
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CD631615BCD631615BPowerexThyristor Module 50+ $50.23
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CM431290CM431290PowerexThyristor ModuleQuote RequiredRequest Quote for Lead Time 
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LD430850LD430850PowerexThyristor Module 30+ $179.93
50+ $175.54
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LD431450LD431450PowerexThyristor Module 30+ $182.84
50+ $178.38
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LD431650LD431650PowerexThyristor Module 1+ $219.00
30+ $193.47
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LD431850LD431850PowerexThyristor Module 1+ $200.39
50+ $185.73
2 
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LD432043LD432043PowerexThyristor Module 1+ $189.60
50+ $194.46
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LS431250LS431250PowerexThyristor Module 30+ $123.83
50+ $120.80
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ND430825ND430825PowerexThyristor Module 30+ $122.65
50+ $119.66
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ND431225ND431225PowerexThyristor Module 30+ $124.50
50+ $121.46
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ND431625ND431625PowerexThyristor Module 30+ $128.16
50+ $125.04
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ND431625NAND431625NAPowerexThyristor ModuleQuote RequiredRequest Quote for Lead Time 
ND431825ND431825PowerexThyristor Module 30+ $134.65
50+ $131.37
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ND432025ND432025PowerexThyristor ModuleQuote RequiredRequest Quote for Lead Time4
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PD431207PD431207PowerexThyristor ModuleQuote RequiredRequest Quote for Lead Time1
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PD431607PD431607PowerexThyristor Module 30+ $577.49
50+ $563.40
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PS431815PS431815PowerexThyristor ModuleQuote RequiredRequest Quote for Lead Time4
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SK100KQ08SK100KQ08SemikronThyristor Module 1+ $4.98
46 
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SK100KQ12SK100KQ12SemikronThyristor Module 1+ $10.99
3105 
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SK100KQ16SK100KQ16SemikronThyristor ModuleQuote RequiredRequest Quote for Lead Time 
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SK100WT12SK100WT12SemikronThyristor Module 1+ $19.94
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