THYRISTORS

INSEL Rectifiers India Thyristors may also be necessary to act in the opening switch mode as well. Such applications may contain those where voltage is reapplied to the pulse power switch shortly after closing and the switch needs to have improved blocking capability or the transfer energy needs to be controlled. In these applications, the switch needs to have turn-off capability to decrease the natural turn-off time (tq) of the device. The device is operated in GTO mode with the suitable commutating gate drive.

Thyristors may be used to bond a source of stored energy, such as a capacitor to a load, or to bypass and protect the load in the case of a crowbar circuit. In these pulsed power applications where the rate of rise of current is very fast, the pulse power switch is acting as a closing switch and ordinary phase control thyristors (SCRS) are probable to fail due to the high di/dt experienced?

Thyristors or SCRs (silicon controlled rectifiers). The Phase Control SCR provides phase-control of ac signals with a line frequency of 50-60 Hz. The Inverter SCR is used in pulsed power applications connecting higher frequencies. The main difference between the two families is the turn-off time (tq). Inverter SCRs typically have a tq of less than 30 microseconds (µs). Similar phase control SCRs has tq ratings of several hundred µs.

Thyristors or SCRs (silicon controlled rectifiers).

Applications:

  • UPS
  • Welding
  • Power Supplies
  • VAR Generators
  • Transportation
  • Traction Inverter
  • Medium Voltage Inverter
  • Flexible AC Transmission
  • Medical
  • Motor control
  • Battery Chargers
  • UPS Systems
  • Induction Heating
PlateTypeMechstructureFig.Ref.Width(W)mmHeight(W)mmF.L(Cx2) +PXNPitch(P)mmSpindleDia(D)      EProjections on  both sides mm
C
D
E
F
G
K
M
Q
R
Y
S
N
T
P
L
L
LA
L
L
L
LA
L
LA
L
LA
L
LA
L
LA
L
LA
L
LA
L
LA
L
LA
L
LA
L
6
6
6
4
6
2
2
4
4
2
2
5
5
5
5
5
5
2
2
4
4
5
5
1
1
17
23
23
36
36
50
50
50
50
76
76
62
62
76
76
83
83
100
100
152
152
100
100
381
381
32
35
35
35
48
68
68
100
100
100
100
122
122
122
122
122
122
122
122
100
100
185
185
100
10
32+PxN
32+PxN
32+PxN
32+PxN
32+PxN
20+PxN
20+PxN
20+PxN
20+PxN
45+PxN
45+PxN
45+PxN
45+PxN
45+PxN
45+PxN
45+PxN
45+PxN
45+PxN
45+PxN
45+PxN
45+PxN
45+PxN
45+PxN
51+PxN
51+PxN
2.5
3. 35
5.8
5.8
7.1
7.0
8.5
7.0
8.5
9.9
12.2
12.2
17.3
9.9
12.2
9.9
12.2
12.2
17.3
12.2
17.3
12.2
17.3
9.9
12.2
3/16
316
316
316
316
1/4
1/4
1/4
1/4
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
10
10
10
10
10
15
15
15
15
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
Device VRRM IF(AV)TCVFMIFSMI2tIRRMRth(j-c)Mounting     
TypeIF(AV) @ I peakTorqueHeat Sink Rec.Thread Package Outline
(V)
(V)(A)(0C)(A)A2Sx103(mA)(0C/W)(Nm)
12NA/RA
400-1800121601.32650.351222K1M-6DO-4A
16NA/RA
400-1800161601.23500.61241.62K1M-6DO-4A
25NA/RA
400-1800251401.354000.841.52K1M-5, M-6DO-4A
25NB/RB
400-1800251401.354000.841.52K2, K3M-6.M-8,1/4"DO-5B
40NB/RB
400-1800401401.355001.251014K2, K3M-6,M-8, 1/4"DO-5B
PAO40A/PAO40C
800-1800401401.355001.251014RRAM-8DO-5B
70NC/RC
400-1800701401.3512007.1100.454K3, K4M-6,M-8DO-5C
100NE/RE (Flat Base)
400-18001001301.5230024150.410K4, K5 Flat BaseDO-8E
100ND/RD
400-18001001301.5230024150.410K4, K5M-16DO-8D
150ND/RD
400-18001501301.4357064220.2510K4, K5M-16DO-8D
200NE/RE (Flat Base)
400-18002001301.35365066.6220.2510K4, K5Flat BaseDO-8E
200ND/RD
400-18002001301.35365066.6220.2510K4, K5M-16DO-8D
250NF/RF (Flat Base)
400-18002501301.35450092.5400.1830K5Flat BaseDO-9F,G
250NG/RG
400-18002501301.35450092.5400.1830K5M-20DO-9F,G
300NF/RF (Flat Base)
400-18003001301.45000125500.1230K5Flat BaseDO-9F,G
300NG/RG
400-18003001301.45000125500.1230K5M-20DO-9F,G
320NF/RF (Flat Base)
400-18003201301.655500151500.1230K5Flat BaseDO-9F,G
320NG/RG
400-18003201301.655500151500.1230K5M-20DO-9F,G
350NF/RF (Flat Base)
400-18003501251.26000180500.1230K5Flat BaseDO-9F,G
350NG/RG
400-18003501251.26000180500.1230K5M-20DO-9F,G
400NG/RG
400-18004001201.62 *8250340500.1250K5M-20DO-9F,G
400NF/RF (Flat Base)
400-18004001201.62 *8250340500.1250K5Flat BaseDO-9F,G
410NJ/RJ (Stud)
400-18004001201.62*8250340500.1250K5M-20, M-24D0-9J
410NU/RU (60x60 Base)
1200-36004101201.15 *7000245500.1515 /BoltED, K5Flat BaseUU
570NU/RU (60 x 60 Base)
1200-4300570801.65 *12000725500.06515 /BoltEDFlat BaseUU
860NU/RU (60 x 60 Base)
1200-1800860801.65 *16000725500.06515 /BoltEDFlat BaseUU
40029131 (Stud/Ceramic)
2300-28002801001.30 *6500125500.1330K53/4 UNFDO-9H
40029132 (Stud/Ceramic)
2300-28002801001.30 *6500125500.130K53/4 UNFDO-9H
400NFC/RFC (Ceramic Flat)
400-18004001201.62 *8250340500.1250EDFLATDO-9F
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