Amp Transistors
Todays deals on Amp Transistors?
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Agilent Low Noise Silicon MMIC Amp, INA-02186, Qty.1000 $1,001.99 |
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New Hitachi HFC-VWG Transistor Inverter VFD VWG2.5LD3 3PH 7.5AMPS $799.00 |
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MJH6284 DARLINGTON 20 AMP 80, 100 V 160 W LOT OF 100 $590.00 |
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20X Mitsubishi NPN 2SC2694 C2694 VHF RF Amp Transistor $499.00 |
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500,NPN 2N3773 Audio Power AMP Transistor TO-3 MOTOROLA $488.00 |
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500, Audio Power AMPS Transistor NPN 2N3773 BY MOT TO-3 $480.00 |
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200PCS, PNP 2N6284 AMP TRANSISTORS TO-3 MOT $438.00 |
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200, 2N6284 Audio AMP Transistor MOT TO-3 $436.00 |
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200, 2N6287 Audio AMP Transistors MOT TO-3 $435.00 |
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Avago/Agilent/HP DC-3.2GHz MMIC Amp, MSA-0486, Qty.1000 $399.99 |
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200PCS 2N6287 AUDIO AMP TRANSISTORS MOT TO-3 NEW, (B42) $397.00 |
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200PCS 2N6287 AUDIO AMP TRANSISTORS MOT TO-3 NEW, (B42) $397.00 |
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200PCS 2N6287 AUDIO AMP TRANSISTORS MOT TO-3 NEW, (B42) $397.00 |
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200PCS 2N6287 AUDIO AMP TRANSISTORS MOT TO-3 NEW, (B42) $397.00 |
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10x Mitsubishi NPN 2SC2094 C2094 RF VHF Amps Transistor $377.00 |
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EUPEC FZ800R12KL4C 800 amp transistor $350.00 |
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200x MOT 2N6030 PNP Transistor for Pwr AMP TO-3 120V $346.00 |
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200, PNP 2N5884 Power AMP Transistors TO-3 $344.00 |
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200, Audio Power AMPS Transistor PNP 2N6030 BY MOT TO-3 $340.00 |
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200, 2N5884 N5884 PNP Power AMP Transistors TO-3 $340.00 |
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10, Mitsubishi NPN 2SC2905 C2905 VHF RF Amp Transistor $319.00 |
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Toshiba VFNC1S-1002P Transistor Inverter .25HP 1.4 Amps $300.00 |
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200, MOTOROLA PNP 2N6609 Audio Pwr AMPS Transistor TO-3 $294.00 |
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200, Audio Power AMPS Transistor PNP 2N6609 BY MOT TO-3 $290.00 |
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200,NPN 2N3773 Audio Power AMP Transistor TO-3 MOTOROLA $274.00 |
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200, Audio Power AMPS Transistor NPN 2N3773 BY MOT TO-3 $270.00 |
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10, Mitsubishi NPN 2SC2694 C2694 VHF RF Amp Transistor $268.00 |
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50pc CA3080A 3080A Op Transconductance Amps OTA IC CHIP $252.00 |
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10X Mitsubishi NPN 2SC2694 C2694 VHF RF Amp Transistor $250.00 |
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50pairs ORIGINAL ON NJW0281G & NJW0302G Audio AMP Transistors NEW (W4) $228.00 |
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200PCS 2SC1307 C1307 Transistors for Power Output AMPS $218.00 |
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200, NPN 2SC1307 Transistors for High Power Output AMPS $216.00 |
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200PCS 2SC1307 C1307 Transistors for Power Output AMPS $215.50 |
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200PCS 2SC1307 C1307 Transistors for Power Output AMPS $215.50 |
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200PCS 2SC1307 C1307 Transistors for Power Output AMPS $215.00 |
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100PCS, 2N6284 Audio AMP Power Transistor TO-3 100V $215.00 |
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100PCS, 2N6284 Audio AMP Power Transistor TO-3 100V $215.00 |
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100PCS, 2N6284 Audio AMP Power Transistor TO-3 100V $215.00 |
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100PCS, 2N6284 Audio AMP Power Transistor TO-3 100V $215.00 |
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89 UNITS OF LM101AH National NSC Vintage Op Amp Linear Gold $190.00 |
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100PCS 2N6287 AUDIO AMP TRANSISTORS MOT TO-3 NEW, (B42) $209.00 |
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100PCS 2N6287 AUDIO AMP TRANSISTORS MOT TO-3 NEW, (B42) $209.00 |
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100PCS 2N6287 AUDIO AMP TRANSISTORS MOT TO-3 NEW, (B42) $209.00 |
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POWEREX KD621K20 PRX TRANSISTOR MODULE 200 AMP 1000V $200.00 |
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POWEREX KD421K15 PRX TRANSISTOR MODULE 200 AMP 1000V $200.00 |
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150,Fairchild E13005-2 AMP Output Transistor TO-220 m $199.00 |
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100P,2SA679 / A679 PNP Power Audio AMP Transistor TO-3 $199.00 |
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TRANSISTOR DEVICES DC POWER SUPPLY 5VDC @ 70AMPS NEW $179.00 |
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100x NPN MJ11032 11032 AMPS POWER TRANSISTORS MOT TO-3 $198.00 |
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100PCS, PNP MJ11033 AMPS POWER TRANSISTORS MOT TO-3 $198.00 |
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100,NEC 2SB536 Audio Frequency AMP Transistor TO-220 $198.00 |
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5x Mitsubishi NPN 2SC2094 C2094 RF VHF Amps Transistor $198.00 |
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50pcs, 2N6576 High Voltage Power OP AMP Transistor TO-3 $189.00 |
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50PCS, PNP TIIP36C TIP 36C GP AMP POWER TRANSISTOR $188.00 |
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20x MJW21194 Audio Output AMP Transistor 250V 200W $188.00 |
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50pcs, Toshiba 2SA1943 A1943 AMP Output Transistor $178.00 |
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100x IXTQ22N50P Audio AMP Transistor new $179.00 |
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100x IXTQ22N50P Audio AMP Transistor new $179.00 |
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100x IXTQ22N50P Audio AMP Transistor new $179.00 |
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100, Audio Power AMPS Transistor NPN 2N6258 BY MOT TO-3 $176.00 |
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C200H-OD214 OMRON OUTPUT MODULE TRANSISTOR 8POINT .8AMP, NEW IN BOX $150.00 |
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new toshiba mg50g6el1 transistor module inverter 50 amp 450 volt six pack $165.00 |
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100pair,2SA968 / 2SC2238 TOSHIBA AMP Transistor TO-220 $169.00 |
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100,NPN 2N3773 Audio Power AMP Transistor TO-3 MOTOROLA $166.00 |
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100PCS 2SC2581 C2581 NPN POWER AMP Transistor $165.00 |
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100, MOTOROLA PNP 2N6609 Audio Pwr AMPS Transistor TO-3 $163.00 |
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100, Audio Power AMPS Transistor PNP 2N6609 BY MOT TO-3 $160.00 |
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100PCS PNP 2N6609 Audio Pwr AMPS Transistor TO-3 NEW $159.00 |
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100PCS PNP 2N6609 Audio Pwr AMPS Transistor TO-3 NEW $159.00 |
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2N4012 NPN Si bipolar amp driver 36Vcb 23.2W LOT OF10 $159.00 |
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100PCS PNP 2N6609 Audio Pwr AMPS Transistor TO-3 NEW $159.00 |
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100,Sanken 2SA1106 A1106 PNP Power AMP Transistor TO-3P $158.00 |
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100PAIR 2SA968 + 2SC2238 TOSHIBA AMP Transistors (A150) $155.00 |
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100PAIR 2SA968 + 2SC2238 TOSHIBA AMP Transistors (A150) $155.00 |
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50, NEC 2SD2165 D2165 Audio AMPs Transistor T0-220 NEW $155.00 |
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NL-550PB30 SCR 550Amp 300Volt Hockey Puck 2.3″ Dia $150.00 |
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100PAIR 2SA968 + 2SC2238 TOSHIBA AMP Transistors (A150) $155.00 |
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100PAIR 2SA968 + 2SC2238 TOSHIBA AMP Transistors (A150) $155.00 |
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FUJI A50L00010291 POWER TRANSISTOR A50L-0001-0291 100AMP 6MBP100RD060-01 $150.00 |
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TOSHIBA TRANSISTOR INVERTOR TOSVERT-130G1, VT130G1-4035B0E, 5 AMP, 3 PHASE $150.00 |
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TOSHIBA TOSVERT-130 G1 TRANSISTOR INVERTOR, TYPE: VT130G1-4035B0E, 5 AMP, 3 HP $150.00 |
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200**, NPN 2SC3807 C3807 Low-Frequency AMP Transistor $145.00 |
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50,TOSHIBA PNP 2SA1146 A1146 Power AMP Transistor TO-3P $145.00 |
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50,TOSHIBA 2SC2485 NPN POWER AUDIO AMP TRANSISTOR 100V $145.00 |
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50PCS,MJ10021 AMPS POWER NPN TRANSISTORS MOT TO-3 $142.00 |
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50PCS,MJ10022 AMPS Prower NPN Transistor MOT TO-3 $142.00 |
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5x Mitsubishi NPN 2SC2694 C2694 VHF RF Amp Transistor $135.00 |
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100,Fairchild E13005-2 AMP Output Transistor TO-220 m $134.99 |
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100,Fairchild E13005-2 AMP Output Transistor TO-220 m $134.99 |
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50, MOTOROLA NPN 2N5069 Power AMP Transistor 80V TO-3 $129.00 |
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50PCS,MJ10013 AMPS Prower NPN Transistor MOT TO-3 $125.00 |
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5X Mitsubishi NPN 2SC2694 C2694 VHF RF Amp Transistor $125.00 |
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50PCS, PNP MJ11033 AMPS POWER TRANSISTORS MOT TO-3 $122.99 |
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50PCS,MJ11033 AMPS POWER PNP TRANSISTORS MOT TO-3 $120.00 |
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100p,2SC1306 C1306 Transistors for Power Output AMPS $118.00 |
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50pcs, 2SK1506 K1506 N-CHANNEL POWER AMPS MOSFET $118.00 |
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100,2SC1307 C1307 Transistors for Power Output AMPS $118.00 |
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50PCS,MJ15021 PNP Power Audio AMP Transistor TO-3 MOT $118.00 |
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100PCS 2SC1307 C1307 Transistors for Power Output AMPS $117.95 |
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100PCS 2SC1307 C1307 Transistors for Power Output AMPS $117.50 |
Amp Transistors Questions
Understanding The High Voltage Transistor In Computer Monitor
High voltage transistors are transistors with higher specification than the normal transistor. It is usually located in the area of power transformer such as the switch mode power transformer and flyback transformer. In television and monitor that uses the flyback transformer to generate high voltage, a high voltage transistor is required to perform the job. It’s location mainly beside the flyback transformer and attach to a heat sink in order to transfer heat faster. Otherwise it may blow in a very short time due to the hard work of this transistor in switching. Typical part number of high voltage transistor that used in monitor and TV is BU2508DF, C3998, C5148, C5047, C5589, C5803 and etc. Usually their rating of volt, amp and watt is in the 1500 volt and above, 10 amps, 50 watt and more. Their sizes are much bigger than the common signal transistor. If this high voltage transistor is shorted, you have to find the exact replacement part number in order for the equipment to last longer. Substitution part number usually won’t last long-perhaps in the few weeks or few months time and it will blow again unless you know the storage and the fall time of the transistor.
Higher voltage, ampere and wattage will not guarantee that your transistor will last long. Many times a bigger specification will blow in a split of seconds the moment you switch on the equipment. You have to go to that particular manufacturer to get the transistor datasheet and find out the spec of the transistor. Look for the fall time and storage time value. The original and the replacement value should have tolerance of not more than 20%. If not the replacement transistor will run hot and eventually blow the transistor. This will waste your precious time.As to why sometimes even the nearest specification transistor also won’t work well is because the particular equipment such as monitor-the yoke coil and the flyback transformer is designed based on the specification of the transistor.
Thus, only original part number transistor that can be install in that particular equipment. I have seen even the original number with different batch of transistor when install in the monitor causing the display to curve in (pincushion out) and the transistor runs very hot. I’ve checked all the circuit and components that connected to the transistor to be okay. Even replacing the flyback transformer also won’t help. The transistor’s temperature keeps rising and if I don’t turn off the monitor, I believe it will eventually blow the transistor. I took out the transistor and compared with the original one and discovered that the replacement logo is a little bit different from the original transistor logo. When I called my electronic supplier about the logo, they said that the transistor that I bought is of a newer version, thought from the same factory. After long hour of searching for the original transistor, I managed to find one. Unbelievable, the original transistor that i replaced runs cool and the picture is perfectly fine. Guess what is the high voltage transistor part number? It was C5148!
In another case, there was one Monitor came in with no power symptom. Upon carefully check the high voltage area; I confirmed that only HOT shorted causing no power. After the replacement (the part number was BU2508DF), when the monitor is switch on, the power blink. I thought that there was some other bad components are causing the power to blink. I check again the power and high voltage section but just could not locate the fault. I took out the HOT that I had just replaced and realize that it was a little bit different from the original one. I took out another HOT that is exactly the same from my spare parts compartment and voila the monitor works perfectly okay. I begin to compare both HOT and you can clearly see the different from the picture shown below.
The lesson that I learned from this mistake is always must replace with an original part number (if possible) and don’t buy any components that is cheaper than the normal market price.
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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