Leading Power Semiconductor Manufacturer

TF133-250
TF133-320 
TF133-400
TF233-200
TF233-250
TF233-320
TF233-400
TF333-250
TF333-320
TF333-400
TF333-500
TF433-200
TF433-250
TF433-320
TF833-250
TF933-250
TF143-400
TF143-500
TF143-630
TF243-400
TF243-500
TF243-630
TF343-500
TF343-630
TF943-400
TF153-630
TF153-800
TF153-1000
TF253-630
TF253-800
TF253-1000
TF453-630
TF453-800
TF453-1000
TF553-800
TF953-630
TF173-1600
TF173-2000
TF273-2000

Stud

Module

Disc

Bridge Rectifier

Disc Fast Power Thyristors 200 A - 2000 A

The Fast Thyristor (TF) series by LJ-MD is a press pack type, fast-switching semiconductor device in disc design, ideal for applications requiring high di/dt resistance, low switching losses, and short turn-on and turn-off times. These thyristors are designed for regulating and converting DC and AC currents up to 2000A, with a frequency range up to 10kHz, and can handle voltages up to 3600V depending on the series. The TF series includes models with current ratings of 200A, 250A, 320A, 400A, 500A, 630A, 800A, 1000A, 1600A, and 2000A.

Fast thyristors in this series are characterized by reduced tq, trr, Qrr, and ERQ values, enabling high-frequency operation. They exhibit very low turn-off times, distinguishing them from standard models. Common applications include welding, induction heating and melting, electric transportation, AC drives, UPS, and other systems requiring quick switching times.

The thyristors feature industry-standard ceramic sealed housings that protect the functional parts and semiconductor elements from mechanical impacts and environmental factors. Polarity is indicated by an icon on the case. The technical specifications, part numbering guide, polarity, dimensions, and recommended cooling solutions, such as air and water heat sinks, are provided.

During assembly, it is crucial to apply the necessary torque to minimize electrical losses and maximize heat dissipation. While the use of heat-conducting paste is beneficial for heat dissipation, it is not mandatory. The fast thyristors come in disc housings with pressure contacts.

LJ-MD offers these fast thyristors with features such as low static and dynamic losses, high VDRM/VRRM values, extensive industry application experience, voltage ranges from 300 to 3600V, and current ratings from 200 to 2000A. They also boast high resistance to thermal and electric cycling and support both natural and forced air cooling. The company guarantees the quality of their thyristors and can provide quality declarations and certificates of conformity upon request.

PRODUCT TABLE

LJTF 95363032953 

  • LJ-MD
  • TF Fast Thyristor
  • 953 series
  • 630 A, IT(AV)
  • 32 *100V = VRRM
  • 9 Digital code of (dVD//dt)crit
  • 5 Digital code of tq
  • 3 Digital code of tgt
TF133~TF933
TypeIT(AV) (Tcase)VDRM
VRRM
ITSMI2tdv/dtdi/dttqTvj maxRth(j-c)Fm ±10%W
A(ºC)VkAkA2sV/usA/ususºCºC/WkNg
200 A
LJ-TF233-200200(102)1000-15004.5100200-250016006.3-12.51250.0410110
LJ-TF433-200200(102)1000-15004.5100200-250016006.3-12.51250.0410180
250A
LJ-TF133-250250(94)1600-24005.0120200-2500160020-401250.0410110
LJ-TF233-250250(97)1000-15005.4140200-250016008-161250.0410110
LJ-TF333-250250(86)1600-24005.0120200-2500160020-401250.0510180
100
LJ-TF433-250250(97)1000-15005.4140200-250016008-161250.0410180
LJ-TF833-250250(94)30005.71621000100050-1251250.0410180
LJ-TF933-250250(92)3000-36005.4140200-1000100063-801250.0410180
320A
LJ-TF133-320320(85)1600-24006320200-1000160025-501250.0410110
LJ-TF233-320320(90)1000-15005.5150200-2500160010-201250.0410110
LJ-TF333-320320(85)1600-24006170200-1000160025-401250.0510180
LJ-TF433-320320(90)1000-15005.5150200-2500160010-201250.0410180
400A
LJ-TF133-400400(85)1600-24006.6210200-1000160050-631250.0410110
LJ-TF233-400400(85)400-14006.5200200-100080020-501250.0410180
LJ-TF333-400371(85)1400-24006.6200200-2500160050-631250.0510180
100
500A
LJ-TF333-500500(95)300-14007.5280500-1000500321250.03510100
TF143~TF943
TypeIT(AV) (Tcase)VDRM
VRRM
ITSMI2tdv/dtdi/dttqTvj maxRth(j-c)Fm ±10%W
A(ºC)VkAkA2sV/usA/ususºCºC/WkNg
400 A
LJ-TF143-400400(88)1400-22008.0320200-1000200025-501250.03415240
LJ-TF243-400400(94)1000-15009.5450200-2500200010-201250.0315180
LJ-TF943-400400(85)3000-36007.5600200-1000200050-631250.03415240
500 A
LJ-TF143-500500(85)1400-22009.0400200-1000200032-631250.03415240
LJ-TF243-500500(91)1000-150011.0600200-2500200012.5-251250.0315180
LJ-TF343-500550(85)500-11009.0800500-1000500251250.02815180
630 A
LJ-TF143-630630(80)1400-220010.0500200-1000200032-631250.03415240
LJ-TF243-630630(84)1000-150011.5660200-250020016-321250.0315180
LJ-TF343-630630(90)400-140010.5820500-1000500321250.02815180
TF153~TF953
TypeIT(AV) (Tcase)VDRM
VRRM
ITSMI2tdv/dtdi/dttqTvj maxRth(j-c)Fm ±10%W
A(ºC)VkAkA2sV/usA/ususºCºC/WkNg
630 A
LJ-TF153-630630(85)1400-220016.01200200-1000200020-400.510.02126550
LJ-TF253-630630(85)800-16006.01600200-100080025-501250.02126550
LJ-TF453-630630(94)1400-220020.02000200-2500200020-401250.02126550
LJ-TF953-630630(90)3000-360017.02400200-2500200050-631250.02126550
800 A
LJ-TF153-800800(85)1400-220017.01445200-1000200020-501250.02126550
LJ-TF253-800800(85)800-16008.01900200-100080025-501250.02126550
LJ-TF453-800800(86)1400-220021.02200200-2500200020-401250.02126550
LJ-TF553-800800(85)1400-240015.02630100063025-631250.02126550
1000 A
LJ-TF153-10001000(75)1400-220018.01620200-1000200020-501250.02126550
LJ-TF253-10001000(85)800-140010.02100200-100080025-501250.02126550
LJ-TF453-10001000(79)1400-220022.02400200-2500200020-401250.02126550
TF173, TF273
TypeIT(AV) (Tcase)VDRM
VRRM
ITSMI2tdv/dtdi/dttqTvj maxRth(j-c)Fm ±10%W
A(ºC)VkAkA2sV/usA/ususºCºC/WkNg
1600 A
LJ-TF173-16001600(95)1600-280037.06800200-1000250050-631250.008451200
LJ-TF173-20002000(90)2000-250040.08000200-1000250040-631250.008451200
2000 A
LJ-TF273-20002000(76)1400-240040.09300500-10001000501250.011451200
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Our company specializes in manufacturing and selling a diverse range of power semiconductors, including power thyristors, modules, rectifier diodes, avalanche diodes, rotor diodes, welding diodes, triacs, and more. These semiconductors are capable of handling currents up to 15000A and voltages up to 9000V. We also offer air and water heatsinks tailored for these semiconductor devices.

Whether you need a single unit or large volumes, we accommodate orders of any size. Bulk orders benefit from reduced pricing. With a strong track record of customer trust, we supply our products to clients worldwide.

Looking to revolutionize your power control solutions? Look no further. At LJ-MD, we specialize in delivering cutting-edge diode and thyristor technologies that meet the highest industry standards. With a strong focus on innovation, reliability, and performance, our products are designed to excel in a wide range of power applications.

From high surge current capability to precise power control, our diodes and thyristors offer exceptional features that cater to your specific needs. Whether you require efficient rectification, fast switching, or precise phase control, our products deliver reliable and precise results.

At LJ-MD, we understand that every project is unique. That’s why we provide personalized support and guidance to ensure you find the perfect solution for your requirements. Our team of experts is always ready to assist you in selecting the right product and providing technical assistance.

Don’t miss out on the opportunity to optimize your power control systems. CONTACT US now or mail to chen@lj-md.com to discuss your project requirements, and let us help you find the ideal diode or thyristor solution to drive your success.

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