Fast Power Thyristors – Series Overview, Specifications, Datasheets


What is Fast Power Thyristor?

Fast Power Thyristors, also known as Fast Turn-Off Thyristors, are semiconductors with reduced tq, trr, Qrr, ERQ values.

Fast thyristors differ from phase control thyristors by high current carrying capacity at high frequencies up to 10 kHz and are used for operation at higher frequencies or in frequency-pulse modes.

Fast SCR Thyristors

The characteristics UTM, tq, Qrr of the fast thyristor are related: a decrease in the value of tq and Qrr leads to an increase in UTM.

To optimize the combination of UTM, tq, Qrr, technological methods are applied that allow a controlled reduction of τ in the layers of the semiconductor chip: doping with atoms of heavy metals, irradiation with high-energy particles (γ-quanta, electrons, protons, alpha particles, etc.). Methods to control the p-emitter injection coefficient are also used.

To reduce tq, a more efficient distributed cathode emitter shunt is also used (with smaller shunt spacings than for phase-control thyristors).

Optimal frequency range for using fast thyristors is up to 10kHz.

Since operation at higher frequencies is often accompanied by an increased speed at the front of the anode current pulses, fast thyristors have an increased di/dt-resistance and short turn-on time.

All disk-type thyristors presented on this site have a standard press-pack type ceramic housing. They are pressed with a relatively high force into heat-sinks which also serve as electrical contacts to the thyristor terminals.

Fast thyristors are available with forward current rating ITAV ranges from 200A to 5000A, and the range of reverse blocking voltage VRRM is from 400V to 4800V, and with tq from 6.3 µs.

Fast Power Thyristors are popular used in high-power rectifiers, power supplies, metal smelting areas, induction heating furnace, smelting furnace, ARC furnace, vacuum furnace, thyristor frequency converter.

See also articles: Phase Control Thyristors (PCT), Fast Switching Thyristors, Thyristor Modules – Series Overview.

For questions regarding the acquisition of Fast SCR Thyristors, Rectifier Diodes, Thyristor Diode Modules
send an email request to:

[email protected]

And we will provide you a commercial offer for delivery.
For a large number, we will provide an individual price!!!

We are open to manufacture products at our production facilities
according to your requests and technical task.


Series of Fast Thyristors in disc case design

Fast Thyristors TF series AS ENERGITM

Fast Thyristors TF series AS ENERGITM are press pack type fast turn-off thyristors, regulating and converting DC and AC currents from 200A to 2000A at frequencies up to 10 kHz in circuits with voltage ratings from 400V up to 3600V, and with tq from 6.3 µs.


TF133...TF933

TF143...TF943

TF153...TF953

TF173, TF273

Fast Thyristors TF133...TF933 (200A – 500A)

Type IT(AV)
(Tcase°C)
VDRM
VRRM
ITSM I2t dv/dt di/dt tq Tvj max Rth(j-c) Fm
±10%
W Package Dimensions
ØDxØdxH
Data-sheet
A V kA kA2·s V/µs A/µs µs ºC ºC/W kN g mm PDF
200 A
TF233-200 200 (102) 1000-1500 4.5 100 200-2500 1600 6.3-12.5 125 0.04 10 110 T.B2 42x25x14 PDF
TF433-200 200 (102) 1000-1500 4.5 100 200-2500 1600 6.3-12.5 125 0.04 10 180 PT32
(T.B3)
54x32x20 PDF
250 A
TF133-250 250 (94) 1600-2400 5.0 120 200-2500 1600 20-40 125 0.04 10 110 PT31-1
(T.B2)
48x27x15 PDF
TF233-250 250 (97) 1000-1500 5.4 140 200-2500 1600 8-16 125 0.04 10 110 T.B2 42x25x14 PDF
TF333-250 250 (86) 1600-2400 5.0 120 200-2500 1600 20-40 125 0.05 10 180
100
T.B3
PT31
54x32x20
47x27x15
PDF
TF433-250 250 (97) 1000-1500 5.4 140 200-2500 1600 8-16 125 0.04 10 180 PT32
(T.B3)
54x32x20 PDF
TF833-250 250 (94) 3000 5.7 162 1000 1000 50-125 125 0.04 10 180 PT32
(T.B3)
54x32x20 PDF
TF933-250 250 (92) 3000-3600 5.4 140 200-1000 1000 63-80 125 0.04 10 180 PT32
(T.B3)
54x32x20 PDF
320 A
TF133-320 320 (85) 1600-2400 6.0 320 200-1000 1600 25-50 125 0.04 10 110 PT31-1
(T.B2)
48x27x15 PDF
TF233-320 320 (90) 1000-1500 5.5 150 200-2500 1600 10-20 125 0.04 10 110 T.B2 42x25x14 PDF
TF333-320 320 (85) 1600-2400 6.0 170 200-1000 1600 25-40 125 0.05 10 180 T.B3 54x32x20 PDF
TF433-320 320 (90) 1000-1500 5.5 150 200-2500 1600 10-20 125 0.04 10 180 PT32
(T.B3)
54x32x20 PDF
400 A
TF133-400 400 (85) 1600-2400 6.6 210 200-1000 1600 50-63 125 0.04 10 110 PT31-1
(T.B2)
48x27x15 PDF
TF233-400 400 (85) 400-1400 6.5 200 200-1000 800 20-50 125 0.04 10 180 PT32 54x32x20 PDF
TF333-400 371 (85) 1400-2400 6.6 200 200-2500 1600 50-63 1250.05 10 180
100
T.B3
PT31
54x32x20
47x27x15
PDF
500 A
TF333-500 500 (95) 300-1400 7.5 280 500-1000 500 32 125 0.035 10 100 PT31 47x27x15 PDF

Fast Thyristors TF143...TF943 (400A – 630A)

Type IT(AV)
(Tcase°C)
VDRM
VRRM
ITSM I2t dv/dt di/dt tq Tvj max Rth(j-c) Fm
±10%
W Package Dimensions
ØDxØdxH
Data-sheet
A V kA kA2·s V/µs A/µs µs ºC ºC/W kN g mm PDF
400 A
TF143-400 400 (88) 1400-2200 8.0 320 200-1000 2000 25-50 125 0.034 15 240 PT42 60x38x20 PDF
TF243-400 400 (94) 1000-1500 9.5 450 200-2500 2000 10-20 125 0.03 15 180 PT41 57x35x14 PDF
TF943-400 400 (85) 3000-3600 7.5 600 200-1000 2000 50-63 125 0.034 15 240 T.C2 60x38x20 PDF
500 A
TF143-500 500 (85) 1400-2200 9.0 400 200-1000 2000 32-63 125 0.034 15 240 PT42 60x38x20 PDF
TF243-500 500 (91) 1000-1500 11.0 600 200-2500 2000 12.5-25 125 0.03 15 180 PT41 57x35x14 PDF
TF343-500 550 (85) 500-1100 9.0 800 500-1000 500 25 125 0.028 15 180 PT41 57x35x14 PDF
630 A
TF143-630 630 (80) 1400-2200 10.0 500 200-1000 2000 32-63 125 0.034 15 240 PT42 60x38x20 PDF
TF243-630 630 (84) 1000-1500 11.5 660 200-2500 200 16-32 125 0.03 15 180 PT41 57x35x14 PDF
TF343-630 630 (90) 400-1400 10.5 820 500-1000 500 32 125 0.028 15 180 PT41 57x35x14 PDF

Fast Thyristors TF153...TF953 (630A – 1000A)

Type IT(AV)
(Tcase°C)
VDRM
VRRM
ITSM I2t dv/dt di/dt tq Tvj max Rth(j-c) Fm
±10%
W Package Dimensions
ØDxØdxH
Data-sheet
A V kA kA2·s V/µs A/µs µs ºC ºC/W kN g mm PDF
630 A
TF153-630 630 (85) 1400-2200 16.0 1200 200-1000 2000 20-40 125 0.021 26 550 PT53 75x51x26 PDF
TF253-630 630 (85) 800-1600 6.0 1600 200-1000 800 25-50 125 0.021 26 550 PT53 75x51x26 PDF
TF453-630 630 (94) 1400-2200 20.0 2000 200-2500 2000 20-40 125 0.021 26 550 T.D2 75x51x26 PDF
TF953-630 630 (90) 3000-3600 17.0 2400 200-2500 2000 50-63 125 0.021 26 550 T.D2 75x51x26 PDF
800 A
TF153-800 800 (85) 1400-2200 17.0 1445 200-1000 2000 20-50 125 0.021 26 550 PT53 75x51x26 PDF
TF253-800 800 (85) 800-1600 8.0 1900 200-1000 800 25-50 125 0.021 26 550 PT53 75x51x26 PDF
TF453-800 800 (86) 1400-2200 21.0 2200 200-2500 2000 20-40 125 0.021 26 550 T.D2 75x51x26 PDF
TF553-800 800 (85) 1400-2400 15.0 2630 1000 630 25-63 125 0.021 26 550 PT53-1 75x51x26 PDF
1000 A
TF153-1000 1000 (75) 1400-2200 18.0 1620 200-1000 2000 20-50 125 0.021 26 550 PT53 75x51x26 PDF
TF253-1000 1000 (85) 800-1400 10.0 2100 200-1000 800 25-50 125 0.021 26 550 PT53 75x51x26 PDF
TF453-1000 1000 (79) 1400-2200 22.0 2400 200-2500 2000 20-40 125 0.021 26 550 T.D2 75x51x26 PDF

Fast Thyristors TF173, TF273 (1600A, 2000A)

Type IT(AV)
(Tcase°C)
VDRM
VRRM
ITSM I2t dv/dt di/dt tq Tvj max Rth(j-c) Fm
±10%
W Package Dimensions
ØDxØdxH
Data-sheet
A V kA kA2·s V/µs A/µs µs ºC ºC/W kN g mm PDF
1600 A
TF173-1600 1600 (95) 1600-2800 37.0 6800 200-1000 2500 50-63 125 0.008 45 1200 PT73 112x75x26 PDF
TF173-2000 2000 (90) 2000-2500 40.0 8000 200-1000 2500 40-63 125 0.008 45 1200 PT73 112x75x26 PDF
2000 A
TF273-2000 2000 (76) 1400-2400 40.0 9300 500-1000 1000 50 125 0.011 45 1200 PT73 112x75x26 PDF

Fast Thyristors KK series AS ENERGITM

Fast Thyristors KK series AS ENERGITM are available with current ratings from 200A to 4800A and blocking voltages from 800V to 4800V, and with tq from 16 µs.

Type IT(AV)
(TC=70°C)
VDRM
VRRM
ITSM I2t dv/dt di/dt tq Tvj max Rth(j-c) Fm
±10%
W Outline Dimensions
ØDxØdxH
Data-sheet
A V kA kA2·s V/µs A/µs µs ºC ºC/W kN kg mm PDF
KK200
KK200-(12...14) 200 1200-1400 2.8 39 1000 200 20 125 0.08 5 0.10 A-1 42x25x15 PDF
KK300
KK300-(8...12) 300 800-1200 4.3 92 500 100 16-35 125 0.08 5 0.10 A-1 42x25x15 PDF
KK300-(12...14) 300 1200-1400 4.3 92 500 100 16-35 125 0.08 5 0.10 A-1 42x25x15 PDF
KK300-(14...20) 300 1400-2000 4.3 92 500 100 16-35 125 0.08 5 0.10 A-1 42x25x15 PDF
KK400
KK400-(8...16) 490 800-1600 4.3 92 500 1200 18-50 125 0.045 15 0.26 A-2 58x34x26 PDF
KK500
KK500-(12...14) 500 1200-1400 7.5 280 1000 200 20 125 0.045 15 0.26 A-2 58x34x26 PDF
KK500-(16...20) 500 1600-2000 7.0 250 1000 200 30 125 0.045 15 0.26 A-2 58x34x26 PDF
KK600
KK600-(12...20) 600 1200-2000 10.0 500 500 150 16-35 125 0.041 18 0.30 A-3 66x42x26 PDF
KK700
KK700-(8...18) 770 800-1800 9.0 405 500 1200 18-50 125 0.041 18 0.30 A-3 66x42x26 PDF
KK800
KK800-(8...20) 820 800-2000 9.0 405 500 1200 18-50 125 0.035 20 0.37 A-4 69x45x26 PDF
KK1000
KK1000-(8...18) 1080 800-1800 10.0 500 500 1200 18-50 125 0.020 22 0.47 A-5 74x47x26 PDF
KK1000-(25...30) 1000 2500-3000 12.0 720 1000 200 55 125 0.020 22 0.47 A-5 74x47x26 PDF
KK1200
KK1200-(12...14) 1247 1200-1400 16.0 1280 1000 1000 35 125 0.018 30 0.60 A-6 85x55x26 PDF
KK600-(12...20) 1205 1600-2000 15.0 1130 1000 1000 50 125 0.018 30 0.60 A-6 85x55x26 PDF
KK1300
KK1300-(8...18) 1330 800-1800 14.0 980 500 1200 18-50 125 0.018 30 0.60 A-6 85x55x26 PDF
KK1500
KK1500-(12...14) 1500 1200-1400 22.5 2500 1000 200 20 125 0.018 30 0.60 A-6 85x55x26 PDF
KK1500-(16...20) 1500 1600-2000 21.0 2200 1000 200 30 125 0.018 40 0.67 A-7 85x60x26 PDF
KK1500-(25...30) 1500 2500-3000 18.5 1700 1000 200 60 125 0.018 30 0.60 A-6 85x55x26 PDF
KK1600
KK1600-(8...12) 1600 800-1200 21.0 1620 500 1200 25 125 0.018 30 0.60 A-6 85x55x26 PDF
KK1600-(12...14) 1600 1200-1400 21.0 1620 500 1200 25 125 0.018 30 0.60 A-6 85x55x26 PDF
KK1700
KK800-(8...18) 1750 800-1800 18.0 1620 500 1200 18-50 125 0.018 30 0.60 A-6 85x55x26 PDF
KK1800
KK1800-(12...14) 1800 1200-1400 25.2 3200 1000 200 20 125 0.018 40 0.67 A-7 85x60x26 PDF
KK1800-(16...20) 1800 1600-2000 25.2 3200 1000 200 35 125 0.018 40 0.67 A-7 85x60x26 PDF
KK1800-(25...30) 1800 2500-3000 21.6 2300 1000 200 60 125 0.018 40 0.67 A-7 85x60x26 PDF
KK900
KK1800-(32...35) 1800 3200-3500 21.6 2300 1000 200 80 125 0.01 56 1.44 A-9 110x73x26 PDF
KK1900-(19...25) 1920 1900-2500 21.0 2205 500 1200 40-80 125 0.0125 45 1.0 A-8 100x63x26 PDF
KK2000
KK2000-(8...18) 2080 800-1800 21 2205 500 1200 18-50 125 0.0125 45 1.0 A-8 100x63x26 PDF
KK2000-(22...25) 2000 2200-2500 23 2205 500 100 16-35 125 0.0125 45 1.0 A-8 100x63x26 PDF
KK2000-(25...30) 2000 2500-3000 24.0 2900 1000 200 60 125 0.0125 45 1.0 A-8 100x63x26 PDF
KK2100
KK2100-(8...18) 2080 800-1800 21.0 2205 500 1200 18-50 125 0.0125 45 1.0 A-8 100x63x26 PDF
KK2100-(19...25) 2160 1900-2500 22.7 2576 500 1200 40-80 125 0.0125 45 1.0 A-8 100x63x26 PDF
KK2200
KK2200-(8...18) 2240 800-1800 23 2645 500 1200 30-60 125 0.0125 45 1.0 A-8 100x63x26 PDF
KK2400
KK2400-(12...14) 2400 1200-1400 33.6 5600 1000 200 22 125 0.0125 45 1.0 A-8 100x63x26 PDF
KK2500
KK2500-(12...18) 2500 1200-1800 35.6 6337 1000 250 40-80 125 0.01 56 1.44 A-9 110x73x26 PDF
KK2500-(20...22) 2500 2000-2200 35.6 6337 1000 250 40-80 125 0.01 56 1.44 A-9 110x73x26 PDF
KK2500-(25...30) 2500 2500-3000 30.0 4500 1000 200 60 125 0.01 56 1.44 A-9 110x73x26 PDF
KK2500-(32...35) 2500 3200-3500 30.0 4500 1000 200 80 125 0.007 70 1.4 A-11 120x84x26 PDF
KK2600
KK2600-(22...25) 2600 2200-2500 27 5600 500 1000 65 125 0.01 56 1.44 A-9 110x73x26 PDF
KK2700
KK2700-(19...25) 2790 1900-2500 33.8 5712 500 1200 40-80 125 0.01 56 1.44 A-9 110x73x26 PDF
KK2900
KK2900-(8...18) 2940 800-1800 35.6 6337 500 1200 30-60 125 0.01 56 1.44 A-9 110x73x26 PDF
KK3000
KK3000-(12...14) 3000 1200-1400 42.0 8800 1000 200 22 125 0.007 70 1.4 A-11 120x84x26 PDF
KK3000-(26...30) 3000 2600-3000 36.0 6500 1000 200 60 125 0.007 70 1.4 A-11 120x84x26 PDF
KK3200
KK3200-(41...48) 3290 4100-4800 35 6125 500 1200 80-150 125 0.007 70 1.4 A-11 120x84x26 PDF
KK3300
KK3300-(31...40) 3370 3100-4000 35 6125 500 1200 70-120 125 0.007 70 1.4 A-11 120x84x26 PDF
KK3600
KK3600-(16...20) 3600 1600-2000 50.4 12500 1000 200 40 125 0.01 56 1.44 A-9 110x73x26 PDF
KK3800
KK3800-(19...25) 3800 1900-2500 44.0 9680 500 1200 40-110 125 0.005 90 2.3 A-12 150x100x26 PDF
KK4000
KK4000-(25...30) 4000 2500-3000 48.0 12000 1000 200 60 125 0.005 90 2.3 A-12 150x100x26 PDF
KK4000
KK4000-(35...45) 4000 3500-4500 42 7500 500 1200 65 125 0.005 90 2.3 A-12 150x100x26 PDF
KK4200
KK4200-(41...48) 4290 4100-4800 44 9680 500 1200 80-150 125 0.005 90 2.3 A-12 150x100x26 PDF
KK4300
KK4300-(31...40) 4370 3100-4000 44 9680 500 1200 70-120 125 0.005 90 2.3 A-12 150x100x26 PDF
KK4400
KK4400-(8...18) 4470 800-1800 45 10125 500 1200 30-60 125 0.007 70 1.4 A-9 120x84x26 PDF
KK4800
KK4800-(19...30) 4890 1900-3000 62 19220 500 1200 40-120 125 0.005 90 2.3 A-12 150x100x26 PDF

Fast Thyristors VS-ST series Vishay Semiconductors

Fast Thyristors Vishay VS-ST series are available with current ratings from 330A to 940A and reverse blocking voltages from 400V to 1200V, and with tq from 10 µs.

Type ITAV/IFAV
(TC)
VRRM
VDRM
ITSM
IFSM
I2t VT(TO) rT Tvj max Rth(j-c)
W Package,
Dimensions
ØDxØdxH
Replacement
AS ENERGITM
Data-sheet
A (ºC) V A kA2·s V mΩ ºC ºC/W g mm PDF
VS-ST173C
VS-ST173C10CFK0 330 (55) 1000 4680 110 1.61 0.77 125 0.016 50 A-PUK
(TO-200AB)
42x19x14
ASTD173C10CFK0
VS-ST173C10CFK1 1000 ASTD173C10CFK1
VS-ST173C10CFP0 1000 ASTD173C10CFP0
VS-ST173C10CFP1 1000 ASTD173C10CFP1
VS-ST173C12CFK0 1200 ASTD173C12CFK0
VS-ST173C12CFK0L 1200 ASTD173C12CFK0L
VS-ST173C12CFK1 1200 ASTD173C12CFK1
VS-ST173C12CFP0 1200 ASTD173C12CFP0
VS-ST173C12CFP1 1200 ASTD173C12CFP1
VS-ST183C
VS-ST183C04CFL0 370 (55) 400 4900 120 1.45 0.58 125 0.016 50 A-PUK
(TO-200AB)
42x19x14
ASTD183C04CFL0
VS-ST183C04CFN0 400 ASTD183C04CFN0
VS-ST183C04CFN1 400 ASTD183C04CFN1
VS-ST183C08CFL0 800 ASTD183C08CFL0
VS-ST183C08CFL1 800 ASTD183C08CFL1
VS-ST183C08CFN0 800 ASTD183C08CFN0
VS-ST183C08CFN1 800 ASTD183C08CFN1
VS-ST203C
VS-ST203C10CFJ1 370 (55) 1000 5260 138 1.22 0.83 125 0.017 50 A-PUK
(TO-200AB)
42x19x14
ASTD203C10CFJ1
VS-ST203C12CFJ0 1200 ASTD203C12CFJ0
VS-ST203C12CFJ1 1200 ASTD203C12CFJ1
VS-ST223C
VS-ST223C04CFL0 390 (55) 400 5850 171 1.09 0.82 125 0.017 50 A-PUK
(TO-200AB)
42x19x14
ASTD223C04CFL0
VS-ST223C04CFL1 400 ASTD223C04CFL1
VS-ST223C04CFN0 400 ASTD223C04CFN0
VS-ST223C04CFN1 400 ASTD223C04CFN1
VS-ST223C08CFL0 800 ASTD223C08CFL0
VS-ST223C08CFL1 800 ASTD223C08CFL1
VS-ST223C08CFN0 800 ASTD223C08CFN0
VS-ST223C08CFN1 800 ASTD223C08CFN1
VS-ST303CL
VS-ST303C04LFK0 515 (55) 400 7950 316 1.48 0.56 125 0.010 250 B-PUK
(TO-200AC)
58x34x27
ASTD303C04LFK0
VS-ST303C04LFL0 400 ASTD303C04LFL0
VS-ST303C08LFL1 800 ASTD303C08LFL1
VS-ST303C08LFN0 800 ASTD303C08LFN0
VS-ST303C08LFN1 800 ASTD303C08LFN1
VS-ST303C10LFJ0 1000 ASTD303C10LFJ0
VS-ST303C12LFH0 1200 ASTD303C12LFH0
VS-ST303C12LFJ1 1200 ASTD303C12LFJ1
VS-ST303C12LFK0 1200 ASTD303C12LFK0
VS-ST303C12LFK0L 1200 ASTD303C12LFK0L
VS-ST303C12LFK1 1200 ASTD303C12LFK1
VS-ST303C12LFK1L 1200 ASTD303C12LFK1L
VS-ST303C
VS-ST303C04CFL0 620 (55) 400 7950 316 1.48 0.56 125 0.010 83 E-PUK
(TO-200AB)
42x25x14.5
ASTD303C04CFL0
VS-ST303C04CFL1 400 ASTD303C04CFL1
VS-ST303C04CFN1 400 ASTD303C04CFN1
VS-ST303C08CFK1 800 ASTD303C08CFK1
VS-ST303C08CFL1 800 ASTD303C08CFL1
VS-ST303C08CFN1 800 ASTD303C08CFN1
VS-ST303C10CFJ0 1000 ASTD303C10CFJ0
VS-ST303C10CFK0 1000 ASTD303C10CFK0
VS-ST303C12CCL1 1200 ASTD303C12CCL1
VS-ST303C12CFJ0 1200 ASTD303C12CFJ0
VS-ST303C12CFJ1 1200 ASTD303C12CFJ1
VS-ST303C12CFK0 1200 ASTD303C12CFK0
VS-ST303C12CFK0L 1200 ASTD303C12CFK0L
VS-ST303C12CFK1 1200 ASTD303C12CFK1
VS-ST303C12CFK1L 1200 ASTD303C12CFK1L
VS-ST333CL
VS-ST333C04LFL0 620 (55) 400 11000 605 0.93 0.58 125 0.010 250 B-PUK
(TO-200AC)
58x34x27
ASTD333C04LFL0
VS-ST333C04LFL1 400 ASTD333C04LFL1
VS-ST333C04LFM0 400 ASTD333C04LFM0
VS-ST333C04LFM1 400 ASTD333C04LFM1
VS-ST333C08LFL0 800 ASTD333C08LFL0
VS-ST333C08LFL1 800 ASTD333C08LFL1
VS-ST333C08LFM0 800 ASTD333C08LFM0
VS-ST333C08LFM1 800 ASTD333C08LFM1
VS-ST333C
VS-ST333C04CFL0 720 (55) 400 11000 605 0.93 0.58 125 0.011 83 E-PUK
(TO-200AB)
42x25x14.5
ASTD333C04CFL0
VS-ST333C04CFL1 400 ASTD333C04CFL1
VS-ST333C04CFM1 400 ASTD333C04CFM1
VS-ST333C08CFL0 800 ASTD333C08CFL0
VS-ST333C08CFL1 800 ASTD333C08CFL1
VS-ST333C08CFM0 800 ASTD333C08CFM0
VS-ST333C08CFM1 800 ASTD333C08CFM1
VS-ST733CL
VS-ST733C04LFL1 940 (55) 400 20000 2000 1.20 0.29 125 0.009 255 B-PUK
(TO-200AC)
58x34x27
ASTD733C04LFL1
VS-ST733C04LFM1 400 ASTD733C04LFM1
VS-ST733C08LFL0 800 ASTD733C08LFL0
VS-ST733C08LFL1 800 ASTD733C08LFL1
VS-ST733C08LFM0 800 ASTD733C08LFM0
VS-ST733C08LFM0L 800 ASTD733C08LFM0L
VS-ST733C08LFM1 800 ASTD733C08LFM1

Air-cooled and Water-cooled heat-sinks for disc type thyristors

The operation of semiconductor devices at high currents and high reverse voltages is accompanied by high power in the p-n junction of the silicon chip.

Air and water heat sinks are used for cooling power SCR thyristors.

The heat sink is characterized by the value of power dissipation and the area of the cooling surface and is selected on the basis of the required heat dissipation at the operating power of the thyristor.

In disk-type thyristors, the necessary compression of the press contacts is provided only if they are assembled with heatsinks.

To keep electrical losses to a minimum and heat dissipation to a maximum, the necessary clamping force Fm must be provided during assembly.

Range of values of axial force on thyristor Fm, i.e. thyristor compression force, is from 10 to 100 kN depending on package diameter (housing type) and is specified in datasheet.

Heatsinks are used for disc (tablet type) semiconductors with сontact surface diameter from Ø19 mm to Ø100 mm.

See for more information about heatsinks for disc type SCR thyristors:
"Air-cooled heatsinks O series", "Air heatsink SF series", "Water heatsink SS series".


Installation recommendations for power disc type thyristors

Assembling disc thyristor with a heatsink

The reliability of heat transfer and electrical contact between the mating surfaces of the thyristor and the cooler over the entire temperature range is ensured by appropriate torque (clamping force).

Before assembly you should perform visual inspection (1) contact surfaces for mechanical damages and wipe (2), soaked with alcohol (toluene, gasoline, acetone).

After inspection, fix the current contacts (leads), install a pin to fix the alignment of the structure.

To improve the parameters of heat transfer it is recommended to lubricate (3) a thin layer of silicone thermal conductive paste before the assembly, which is not a mandatory condition for installation.

Install the thyristor (3), the second part of the cooler, the fiberglass insulator and the thrust washer.

To thread the traverse (4) and evenly tighten the nuts. Make sure no misalignment and evenness of the contact surfaces.

When the parts are sufficiently clamped but moveable, we recommend placing the cooler on a flat surface and checking the tolerance for parallelism of the overall adjacent plane of the surfaces (5).

Clamp each nut in turn (about a quarter turn) to the stop (6). The amount of deflection of the traverse determines whether the achieved clamping force corresponds to the required one.

After installation, the fasteners (nuts and washers) must be additionally secured against corrosion.


Tips and recommendations for power thyristors:

The power thyristors should not be operated for long periods of time at their limit load for all parameters. In this case, the safety factor is determined by the required degree of reliability of the device.

Replace a failed power thyristor with a thyristor that matches the parameters of the one being replaced.

Supercooling must be provided when operating in an environment with an elevated ambient temperature.

Periodic cleaning of power thyristors and coolers to remove dust and contaminants is recommended to ensure proper heat dissipation.

Inductive current dividers (often twisted toroidal wire) should be used to equalize currents between power thyristors connected in parallel. The most popular connection methods are closed circuit, common coil circuit, or power thyristor. The efficiency of current dividers in this case is determined by the cross section of the magnetic wire.

Prevention of voltage unbalance when power thyristors are connected in series is achieved by using shunt resistors connected in parallel with each thyristor. Voltage equalization in transient conditions is provided by connecting capacitors in parallel to each thyristor.

It is strictly forbidden to touch power thyristors under high voltage during operation.


icon Why choose AS ENERGITM

  • Own production facilities, including semiconductor silicon chips production
  • European brand - 100% quality, favorable price, short production terms
  • Over 20 years of experience in the semiconductor industry
  • Clients from more than 50 countries trust us
  • 20000 items in the product line for currents from 10A to 15000A, voltages from 100V to 9000V
  • We produce analogues of other manufacturers' products
  • Guaranteed certified quality, warranty period of operation - 2 years

 

Quality Warranty

Our products are certified and correspond to international standards.
Our company provides a quality guarantee for products of 2 years.
We provide certificates of conformity, reliability reports, data sheets and technical passports at the request of the customer.

Certificates

Each product is tested for the main parameters, and Test reports of the parameters for each product are provided.

Test Report

Geography of partnership

AS ENERGITM company manufactures and supplies power semiconductors to more than 50 countries around the world.

Geography

Logistics and Delivery

We deliver our products all over the world with the services of logistics companies: DHL, TNT, UPS, EMS, Fedex, Aramex.
Products can be delivered by any means of transport: air, sea, rail and road.

Logistics

AS ENERGITM Semiconductors Manufacturing

Our products range includes rectifier diodes, phase control thyristors in disc and stud design, avalanche diodes and thyristors, fast switching, high frequency thyristors, fast recovery, welding and rotor diodes, triacs, bridge rectifiers, power modules (thyristor, diode, thyristor-diode, IGBT), and air and water heatsinks to them.

Power diodes and thyristors are produced for currents from 10A to 15000A, voltage range from 100V to 9000V.
Power diode and thyristor modules are produced from 25A and up to 1250A, voltage range 400V - 4400V.
The range of power semiconductors also includes equivalent, replacement, analogue and alternative semiconductor devices of global manufacturers.

For questions regarding the acquisition of Fast SCR Thyristors, Rectifier Diodes, Thyristor Diode Modules
send an email request to:

[email protected]

And we will provide you a commercial offer for delivery.
For a large number, we will provide an individual price!!!

We are open to manufacture products at our production facilities
according to your requests and technical task.

 

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