Todays deals on Scr Thyristor?

ABB 3000A GTO Thyristor SCR CSG 3001-18A 04 61179712 6101 2443 $975.00

Reliance rectifier stack SCR thyristor 86466-10R 86466 $534.55

NEW SCR Thyristor Trigger Module 110V 230V 400V, FC36M $401.48

IOR IRKT210-12 SCR DOUBLER THYRISTOR MODULE 1.2kV 1200V V(rrm) 210A I(t) – NEW $245.00

NEW 1PCS SKT1200/16E SEMIKRON SCR THYRISTOR SKT1200-16E $199.00

Thyristor back to back SCR Module IRKT430-16 430A 1600V power module dual SCR $190.00

100 PCS BT152-800R BT152-800 TO-220 Thyristor SCR 13A 800V /FREE Registered Mail $178.99

500 PCS BT151-500R TO-220 Thyristor SCR 7.5A 500V $174.49

NEW UAL SCR Thyristor Power Controller 480V, AFM11 $142.98

International rectifier vishay SCR thyristor 301RC30 $150.00

ABB 80173-007-01 SCR THYRISTOR ***XLNT*** $149.00

ABB C716FPW147 GR5 9434 SCR THYRISTOR ***XLNT*** $149.00

QTY2 EUPEC THYRISTOR DUAL SCR MODULE TT250N12KOF $99.00

Peak SCR SCR100 Triac Thyristor Analyzer Meter Tester $129.99

WESCODE R350CH12FKO SCR THYRISTOR ***XLNT*** $124.00

MSC 2P 150C120BIL SCR Diode thyristor NEW $125.00

1 piece 1GP410403-58AZ Westcode SCR Thyristor Used 410403-58AZ $107.40

WESTCODE SCR DIODE THYRISTOR 8600A0 3H04 8549 (S49B) $100.00

WESTCODE SCR DIODE THYRISTOR 1926A50H12A 7921 (S49B) $100.00

WESTCODE SCR DIODE THYRISTOR 1926A50H12A 7929 (S49B) $100.00

Thyristor back to back SCR Module IRKT250-16 250A 1600V power module dual SCR $90.00

1600V 2000A+ High Voltage SCR Thyristor Hockey PUK Motor? Welders? Can crushers? $100.00

SIEMENS BST N45 110 SCR THYRISTOR ***XLNT*** $69.00

2N4442 Thyristor SCR 8A 200V BY MOTOROLA LOT OF 10 $89.00

VISHAY VSKT162/16PBF Thyristor SCR Module 1.6KV, 5.1KA, VSKT162, GENUINE NEW $74.95

NEWARK VISHAY INT’L RECTIFIER 09F5069 SCR THYRISTOR $71.00

JANTX2N2323AS, Mil-Spec SCR Rectifer Thyristor Unitrode $61.07

SIEMENS BST L45 110 SCR THYRISTOR ***XLNT*** $59.00

SIEMENS BST M45 110 SCR THYRISTOR ***XLNT*** $59.00

C90565 Lot 2 Eurotherm 425A Thyristor SCR Electrical Power Controller (240V~15A) $49.99

2PCS WESTINGHOUSE T600101804-BT SCR THYRISTOR NEW FOR ROBICON 401 CONTROLLER $49.99

A PAIR OF NEW OLD STOCK NOS SIEMENS SILIZIUM THYRISTOR SCR BST N2590 N25-90 $49.99

WESTINGHOUSE T507088054A POWER SCR THYRISTOR NEW LOT $49.90

Power SCR THYRISTOR 250PA120 IR Vintage $49.95

SOLID STATE? CAPACITOR? THYRISTOR 250A 600V C350E NEW SCR (S9A1) $45.00

INTERNATIONAL RECTIFIER 151RA30 SCR THYRISTOR (S49B) $45.00

SEMIKON SKKT31/12D MODULE DUAL THYRISTOR SCR 30A 1200V $39.90

GE 2N1929 (C8U) THYRISTOR Power SCR Vintage Rare! NOS $39.95

SI 2N1929 THYRISTOR Power SCR Vintage Rare! NOS $34.95

Big Red Stud SCR Silicon Rectifier Thyristor Westinghouse 218 M About 10 inch !! $40.00

SEMIKRON SEMIPACK SKKT 27/12 E 27/12E SCR / THYRISTOR / DIODE MODULE – NEW NO BO $40.00

C90551 Eurotherm 425A Thyristor SCR Electrical Power Controller (120V~15A) $24.99

New NL-470PB160 8924 SCR THYRISTOR N346 $39.00

POWEREX THYRISTOR C180E 600V Phase Control SCR $30.00

RELIANCE 410403-9AB SCR THYRISTOR SINUSOIDAL **NIB** $29.00

Lot of 3 pcs Discrete Thyristor (SCR?) with # PRX USA AA550CRE 120BX 15 9605 $30.00

7291PXP POWER DIODE SEMICONDUCTOR RECTIFIER NEW? THYRISTOR SCR (S41B) $30.00

GE POWEREX NEW SOLID STATE THYRISTOR CAPACITOR C380E SCR (S9A1) $30.00

50pcs Plastic molded Thyristor SCR 2P4M NEW $34.99

20pcs Thyristor SCR BT152-600R BT152 TO-220 $28.40

GE POWEREX NEW SOLID STATE CAPACITOR C380PB THYRISTOR SCR (S9B) $25.00

POWEREX ? CAPACITOR THYRISTOR SCR NEW PRX C380PB (S9A1) $25.00

50pcs Thyristor SCR BT151 BT151-500R TO-220 $23.60

BT151-500R Philips Thyristor 500V 12A SCR Rectifier 30p $24.00

2N3896 100 V 35 A SCR Thyristor New 4pcs $27.00

MCR16NG, SCR Thyristor, 16A, 800V, Rectifier, Qty 10 $28.79

SCR2010 Thyristor x 1 pieces $23.98

2N6400, 50V 16A, SCR, Reverse Blocking Thyristor Qty 10 $26.99

X0202MA, 1.25A, 600V, SCR Thyristor, X02 Series, Qty 50 $26.99

POWER DIODE SEMICONDUCTOR RECTIFIER NEW? THYRISTOR C281PM 8401 SCR (S41C) $20.00

SEMICONDUCTOR POWER DIODE THYRISTOR C291P 8409 NEW? SCR (S6B) $20.00

100pcs Thyristor SCR BT169D BT169 TO-92 $19.30

Big Red Stud SCR Silicon Rectifier Thyristor Westinghouse 219 D About 7 inch !!! $25.00

P0102DA 1AA3, 400V, SCR Thyristor, P010, Qty 100 $24.29

2N1772A Silicon Controlled Rectifier Thyristor SCR NOS Lot of 4 $19.95

Stud Phase Control Thyristor SCR 100A 1600V KP100A $23.48

SCR2502 Thyristor x 1 pieces $19.18

Stud Phase Control Thyristor SCR 100A 1600V KP100A $22.82

Silicon Control Rectifier Thyristor SCR 100A 1600V $22.18

Stud Phase Control Thyristor SCR 100A 1600V KP100A $22.14

Stud Phase Control Thyristor SCR 100A 1600V KP100A $22.13

Silicon Control Rectifier Thyristor SCR 100A 1600V $22.13

New IR SCR Thyristor Diode 7848 150KR60A $18.75

SCR 2N4172 Reverse Blocking Thyristor $21.99

300 pc’s P/N P0102BA1AA THYRISTOR SCR 200V 8A 3PIN TO-92 $9.99

Stud Phase Control Thyristor SCR 100A 1600V KP100A $21.84

Silicon Control Rectifier Thyristor SCR 100A 1600V $21.82

Silicon Control Rectifier Thyristor SCR 100A 1600V $21.82

Silicon Control Rectifier Thyristor SCR 100A 1600V $21.80

NTE NTE5429 THYRISTOR / SCR TO-39 NEW HARD TO FIND $14.90

2N5060, SCR Reverse Blocking Thyristor Rectifier Qty 50 $20.69

25RIA100 – SCR THYRISTOR 25A 1KV TO-208AA $19.95

BT100A/02 Philips Thyristor 400V 5A SCR Rectifier 20pc $14.00

New NL-A390PM-9149 SCR THYRISTOR N371 $19.00

MCR16NG, SCR Thyristor, 16A, 800V, Rectifier, Qty 5 $17.99

20 pcs 2A Plastic molded Thyristor SCR 2P4M 2P4M-AZ NEC $11.80

2N3896 100 V 35 A SCR Thyristor New 2pcs $15.00

GENERAL ELECTRIC SCR THYRISTOR 2N1771A – NIB – NOS $14.99

Thyristor 40RCS30 – SCR $13.00

NEW S4015L TECCOR SCR THYRISTOR, 15A, 400V, TO-220AB 10 PIECES $11.00

2N2322 GE THYRISTOR SCR GOLD LEADS BLACK VINTAGE $9.95

2N4442 Thyristor SCR 8A 200V BY MOTOROLA $9.75

50 pcs Thyristor SCR BT169D BT169 TO-92 $9.70

Thyristor 40RCS30 – SCR $8.00

20pcs Plastic molded Thyristor SCR 2P4M NEW $14.99

6PCS BT152-800R BT152-800 TO-220 Thyristor SCR 13A 800V $14.49

X0202MA, 1.25A, 600V, SCR Thyristor, X02 Series, Qty 25 $14.39

Silicon Control Rectifier Thyristor SCR 30A 1600V $14.13

Stud Phase Control Thyristor SCR 30A 1600V KP30A $14.12

Stud Phase Control Thyristor SCR 30A 1600V KP30A $14.10

Scr Thyristor Questions

Testing SCR – How To Test And Check Silicon Controlled Rectifier

Testing SCR (silicon controlled rectifier) can be done by using an analog multi meter or specialize tester (such as the Peak electronic atlas component analyzer) designed to check semiconductor devices easily. SCR can be found in many electronic circuits. Part numbers such as the FOR3G and MCR 100-6 were very common used in computer monitor. Some called SCR as thyristor but in actual fact the word thyristor should not be associated exclusively with the silicon controlled rectifier. It is in fact a general name given to all four layer PNPN devices including the commonly used SCR. The diac, the Triac, and the SCS are the other popular devices belonging to the family of thyristors.

SCR consists of three pin of Gate (G), Anode (A) and Cathode (C). In order to identify the pin out, one must find it from semiconductor data book such the famous Philips ECG master semiconductor replacement guide. The data book will list out the general specification of the SCR such as the volt and ampere. If you want to know more details about a particular SCR, you can always try to search from the internet. Usually the SCR manufacturers will provide the full datasheet for those who want it.

Once you know the pin outs of the G, A and C legs you can begin to test the SCR. If you have the Peak electronic atlas component analyzer tester, what you need to do is to connect the three small clips to each pin of the SCR (any part number will do). The tester will begin to analyze the SCR and prompt you with the display such as “Sensitive or low power thyristor” before it tells you the exact pin outs of G, A and C. After the first test, the tester will eventually show you the answer at the LCD display. Red is Gate, Green is Cathode and Blue is Anode. It is a simple process and you will know the answer in less than 10 seconds. If there is a problem in the SCR, the tester would not be able to show the results instead it shows a shorted reading.

If you don’t have this tester for checking SCR, I’m showing you another easy way on how to test SCR fast. You need an analog meter set to X1 ohm. Place the red probe to the Cathode and black probe to the Anode pin. At this time the meter doesn’t show any reading. Now gently move the black probe and touch the Gate pin (the black probe still touching the Anode pin) and you will notice the meter’s pointer will kick as shown at the picture (low resistance).

Removing the black probe from the GATE pin (the black probe still touching the Anode pin) you would noticed that the resistance continues to be there (low resistance). This is due to the conduction of SCR as the meter battery is usually able to supply current more than the holding current. If at this stage you removed the black probe from the Anode pin and connect it back, the pointer will dropped back to infinity (high resistance). If the SCR could hold the resistance then the SCR is considered good. If it can’t hold then the SCR is faulty.

Conclusion- Practice testing SCR more often to see how’s the result like. Try some different part numbers and power SCR-and if the resistance don’t hold using X1 ohm, you may try X10 ohm and etc.

About the Author

Check out the two links below. You will be pleasantly surprised to find out that LCD and Electronic Repairs are so Easy and Highly Profitable for even a novice. You can learn the repairing secrets easily.

Find out How to Repair Any LCD Monitor – It is a breeze!

Learn the Secrets of Testing Electronic Components.

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