Thyristors

Thyristors are four-layer semiconductor devices, also known as a silicon controlled rectifier (SCR) It is like a fast static switch and is good for controlling large amounts of power, they can also control the speed of DC motors.

How do thyristors work?

Thyristors usually consist of three electrodes: an anode (positive terminal), Cathode (negative terminal) and a gate. (You can also get thyristors with two or four leads). The gate is the main control terminal while the main current flows between the anode and cathode Thyristors are made of N-type and P-type materials. The N-type material is formed by doping an element with electrons to increase the number of negative charge-carrying electrons. The P-type material is also produced through doping, although the resulting charge-carrying electrons are positively charged. By alternating layers of P and N-type material, a semiconductor thyristor device is formed. Thyristors are used to create a latching circuit. Thyristors can be turned on using the gate. It then turns off when the voltage across the anode-cathode drops back down to zero.

Types of thyristors

  • Silicon controlled rectifier (SCR) -The basic purpose of an SCR is to function as a switch that can turn on or off small or large amounts of power.
  • Silicon controlled switch (SCS) - Silicon Controlled Switch (SCS) is a device similar to an SCR, but it is designed to turn off when a positive voltage/input current pulse is applied to an additional "Anode gate"
  • Triac – Triac gets its name from Triode for alternating current Triacs are similar to SCRs but it conducts in both directions, (a bidirectional device). This means that it can switch AC and DC currents., Firing circuit commander modules are required for this.
  • Four-layer diode - A four-layer diode has 2 pins and is similar to a voltage-sensitive switch. When the voltage between the two pins exceeds the breakdown voltage it turns ON, otherwise its OFF.
  • Diac- Diac is a mix of the words diode and ac switch it is similar to a four-layer diode but it can conduct in both directions meaning it can contact both AC and DC currents.

Applications of thyristors

Thyristors are used in applications such as;

  • Motor speed controls
  • Pressure control systems
  • Light dimmers
  • liquid level regulators

...
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RS庫存編號 839-1373
製造零件編號T560N16TOFXPSA1
BrandInfineon
TWD3,058.00
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559A PCT BG-T4814K0-1 1600V - 8000A Stud - 200mA - - 2V - 300mA
RS庫存編號 165-5408
製造零件編號TT500N12KOFHPSA2
BrandInfineon
TWD7,518.50
Each (In a Tray of 2)
單位
500A PCT Module 60mm 1200V - 17000A Panel Mount - 250mA - - 2.2V - 300mA
RS庫存編號 839-1391
製造零件編號T880N16TOFXPSA1
BrandInfineon
TWD4,462.00
單位
880A PCT BG-T5726K-1 1600V - 17500A Stud - 250mA - - 2.2V - 300mA
RS庫存編號 839-1256
製造零件編號TT170N16KOFHPSA1
BrandInfineon
TWD4,844.00
單位
170A PCT Module 50mm 1600V - 5200A Panel Mount - 200mA - - 2V - 300mA
RS庫存編號 839-1168
製造零件編號DT61N12KOFHPSA1
BrandInfineon
TWD4,013.00
單位
60A PCT Module 20mm 1200V - 1550A Panel Mount - 120mA - - 1.4V - 200mA
RS庫存編號 839-1367
製造零件編號T430N16TOFXPSA1
BrandInfineon
TWD2,834.00
單位
433A PCT BG-T4214K0-1 1600V - 5200A Stud - 200mA - - 2V - 300mA
RS庫存編號 839-1395
製造零件編號T1190N16TOFVTXPSA1
BrandInfineon
TWD8,511.00
單位
1190A PCT BG-T7526K-1 1600V - 25500A Stud - 250mA - - 2V - 500mA
RS庫存編號 145-9518
製造零件編號TZ600N12KOFHPSA1
BrandInfineon
TWD5,687.30
Each (In a Tray of 3)
單位
600A PCT BG-PB501-1 1200V - 17000A Panel Mount - 250mA - - 2.2V - 300mA
RS庫存編號 839-1238
製造零件編號TDB6HK95N16LOFHOSA1
BrandInfineon
TWD5,163.00
單位
95A IGBT ISOPACK 1600V - 720A Panel Mount - 150mA - - 2.5V - 200mA
RS庫存編號 839-1272
製造零件編號TT251N16KOFHPSA1
BrandInfineon
TWD4,812.00
單位
250A PCT Module 50mm 1600V - 9100A Panel Mount - 200mA - - 2V - 300mA
RS庫存編號 165-5554
製造零件編號TDB6HK95N16LOFHOSA1
BrandInfineon
TWD5,163.00
Each (In a Tray of 3)
單位
95A IGBT ISOPACK 1600V - 720A Panel Mount - 150mA - - 2.5V - 200mA
RS庫存編號 165-5337
製造零件編號TDB6HK124N16RRBOSA1
BrandInfineon
TWD3,101.70
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125A Diode Module 45mm 1600V - 650A PCB Mount - 150mA - - 2.5V - 200mA
RS庫存編號 145-8860
製造零件編號TD570N16KOFHPSA2
BrandInfineon
TWD8,497.00
Each (In a Tray of 2)
單位
600A PCT Module 60mm 1600V - 17000A Panel Mount - 250mA - - 2.2V - 300mA
RS庫存編號 145-9515
製造零件編號TD330N16AOFHPSA1
BrandInfineon
TWD4,887.70
Each (In a Tray of 3)
單位
330A PCT Module 50mm 1600V - 9100A Panel Mount - 200mA - - 2V - 300mA
RS庫存編號 145-8674
製造零件編號TZ500N12KOFHPSA1
BrandInfineon
TWD5,217.70
Each (In a Tray of 3)
單位
500A PCT BG-PB501-1 1200V - 17000A Panel Mount - 250mA - - 2.2V - 300mA
RS庫存編號 839-1244
製造零件編號TT162N16KOFAHPSA1
BrandInfineon
TWD4,585.00
單位
162A PCT Module 34mm 1600V - 5200A Panel Mount - 150mA - - 2V - 200mA
RS庫存編號 839-1357
製造零件編號T390N16TOFXPSA1
BrandInfineon
TWD2,658.00
單位
381A PCT BG-T4214K0-1 1600V - 4900A Stud - 150mA - - 2V - 200mA
RS庫存編號 145-8864
製造零件編號TT570N16KOFHPSA2
BrandInfineon
TWD8,278.50
Each (In a Tray of 2)
單位
600A PCT Module 60mm 1600V - 17000A Panel Mount - 250mA - - 2.2V - 300mA
RS庫存編號 165-5397
製造零件編號TT162N16KOFKHPSA1
BrandInfineon
TWD4,553.50
Each (In a Tray of 8)
單位
162A PCT Module 34mm 1600V - 5200A Panel Mount - 150mA - - 2V - 200mA
RS庫存編號 165-5387
製造零件編號DT61N12KOFHPSA1
BrandInfineon
TWD3,751.10
Each (In a Tray of 15)
單位
60A PCT Module 20mm 1200V - 1550A Panel Mount - 120mA - - 1.4V - 200mA