Page 1
PRELIMINARY 
PD43__06 
Powerex, Inc., Hillis Street, Youngwood, Pennsy l vania 15697 (724) 925-7272              
                                                             Dual SCR Isolated Module 
POW-R-BLOK
TM    
                                                             600 Amperes / Up to 2400 Volts 
Ordering Information
Select the complete eight-digit 
module part number from the table 
below.  
Example: PD432406 is a 2400 Volt, 
600A Average Dual SCR Isolated 
POW-R-BLOK
TM
 Module 
Type 
PD43 
Voltage 
Volts (x100) 
20 
22 
24 
: 
Current 
Amperes 
(x100) 
06 
Description: 
Powerex Dual SCR Modules are 
designed for use in applications 
requiring phase control and isolated 
packaging. The modules are isolated 
for easy mounting with other 
components on a common heatsink.  
Features: 
T Electrically Isolated Heatsinking   
T Compression Bonded Elements   
T Metal Baseplate   
T Low Thermal Impedance  
   for Improved Current Capability 
Benefits: 
T  No Additional Insulation 
   Components Required 
T Easy Installation   
T No Clamping Components  
   Required 
T  Reduce Engineering Time 
Applications: 
T  Bridge Circuits   
T  AC & DC Motor Drives   
T  Motor Soft Starters   
T  Battery Supplies   
T  Power Supplies   
T  Large IGBT Circuit Front Ends  
                     10/04/2002
 
 
Page 2
PRELIMINARY
Powerex, Inc., Hillis Street, Youngwood, Pennsy l vania 15697 (724) 925-7272              
POW-R-BLOK
Dual SCR Isolated Module 
600 Amperes / Up to 2400 Volts
PD43__06 
TM
Absolute Maximum Ratings 
Characteristics Conditions  Symbol    Units 
Repetitive Peak Forward and Reverse Blocki ng 
Voltage 
Non-Repetitive Peak Block i ng Voltage       
 (t < 5 msec) 
RMS Current  AC Switch Configuration 
 o
 (180
 Conduction) 
180° Conduction, T 
180° Conduction, T 
180° Conduction, T
180
 Conduction, T
°°°°
180° Conduction, T 
180° Conduction, T
RMS Current Per SCR 
 o
 (180
 Conduction) 
180° Conduction, T 
180° Conduction, T 
180° Conduction, T
180
 Conduction, T
°°°°
180° Conduction, T 
180° Conduction, T
Average Forward Current Per SCR 
 o
 (180
 Conduction) 
180° Conduction, T 
180° Conduction, T 
180° Conduction, T
180
 Conduction, T
°°°°
180° Conduction, T 
180° Conduction, T
Peak One Cycle Surge Current, Non-Repeti t ive 
Tj = 25C, Vr = 0 
Peak One Cycle Surge Current, Non-Repeti t ive 
Tj = 25C, Vr = Vrrm 
Peak One Cycle Surge Current, Non-Repeti t ive 
Tj = 125C, Vr = 0 
Peak One Cycle Surge Current, Non-Repeti t ive 
Tj = 125C, Vr = Vrrm 
Peak Three Cycle Surge Current, Non-Repetitive   60 Hz, Tj = 125C, Vr = Vrrm   I 
Peak Ten Cycle Surge Current, Non-Repetitive   60 Hz, Tj = 125C, Vr = Vrrm   I 
I2t for Fusing for One Cycle 
Tj = 125C, Vr = Vrrm 
Maximum Rate-of-Rise of On-State Current, 
Per JEDEC Standard 397 5.2.2. 6   di/dt   400   A/µs 
(Non-Repetitive) 
Maximum Rate-of-Rise of On-State Current, 
Per JEDEC Standard 397 5.2.2. 6   di/dt   150   A/µs 
(Repetitive) 
Operating Temperature      TJ -40  to  +125 °C 
Storage Temperature      T 
Max. Mounting Torque, M6 Mounting Screw         132 
Max. Mounting Torque, M10 Terminal Screw         106 
Module Weight, Typic al         455   g 
    11.75  lb 
V Isolation @ 25C    
             10/04/2002
 V
 V
=66°C 
C
=71°C 
C
=76°C 
C
=81
C 
C
°°°°
=86°C 
C
=90°C 
C
=66°C 
C
=71°C 
C
=76°C 
C
=81
C 
C
°°°°
=86°C 
C
=90°C 
C
=66°C 
C
=71°C 
C
=76°C 
C
=81
C 
C
°°°°
=86°C 
C
=90°C 
C
60 Hz 
50 Hz 
60 Hz 
50 Hz 
60 Hz 
50 Hz 
60 Hz 
50 Hz 
8.3 milliseconds 
10 milliseconds 
 & V
DRM
RRM
 V
RSM
I
T(RMS) 
I
T(RMS) 
I
T(RMS) 
I
T(RMS) 
I
T(RMS) 
I
T(RMS)
I
T(RMS) 
I
T(RMS) 
I
T(RMS) 
I
T(RMS) 
I
T(RMS) 
I
T(RMS)
I
T(AV) 
I
T(AV) 
I
T(AV) 
I
T(AV) 
I
T(AV) 
I
T(AV)
I
TSM 
I
TSM
I
TSM 
I
TSM
I
TSM 
I
TSM
I
TSM 
I
TSM
 23,690 A 
TSM
   18,615   A 
TSM
I2t 
2
I
t 
 -40  to  +150 °C 
stg
V
rms
   Up to 2400   V 
 + 100V   V 
RRM
1665 
1550 
1440 
1330 
1220 
1110 
1178 
1100 
1020 
942 
864 
785 
750 
700 
650 
600 
550 
500 
50,890 
46,400 
33,925 
30,935 
44,250 
40,350 
29,500 
26,900 
3.63 x 10 
3.62 x 10 
6 
6
2 
A
2 
A
in. – Lb. 
15 
Nm 
in. – Lb. 
12 
Nm 
3000 V 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
A 
sec 
sec 
 
 
Page 3
PRELIMINARY
Powerex, Inc., Hillis Street, Youngwood, Pennsy l vania 15697 (724) 925-7272               
POW-R-BLOKTM 
Dual SCR Isolated Module 
600 Amperes / Up to 2400 Volts
PD43__06 
Electrical Characteristics, TJ=25
Characteristics Symbol  Test  Conditions  Min.  Max. 
C unless otherwise specified 
°°°°
Units 
Repetitive Peak Forward Leakage Current   I 
Repetitive Peak Reverse Leakage Current   I 
Peak On-State Voltage   VTM I 
Threshold Voltage, Low-level 
Slope Resistance, Low-level 
Threshold Voltage, High-level 
Slope Resistance, Hi gh-l evel  
VTM Coefficients, Full Range    
   Up to 2400V, TJ=125°C  100  mA 
DRM
   Up to 2400V, TJ=125°C  100  mA 
RRM
=3000A, TJ=125°C      1.75   V 
TM
V
V
(TO)1
r
T1
(TO)2
r
T2
 = 125°C, I = 15%I
T
J
 = 125°C, I = πI
T
J
T(AV)
T(AV)
TJ = 125°C, I = 50A to 6kA 
V
 = A+ B Ln I +C I + D Sqrt I 
TM
 to πI
      0.869 
T(AV)
0.237 V mΩ 
 to I
 1.055 
TSM
0.175 V mΩ 
A = 
B = 
C = 
D = 
0.93159 
-4.51 E-02
9.95 E-05
1.29 E-02
Minimum dV/dt   dV/dt   Exponential to 0.67V
T
=125°C, Gate Open 
j
Gate Trigger Current   IGT T 
Gate Trigger Voltage   VGT T 
Non-Triggering Gate Voltage   V
 T
GDM
=25°C, VD=12V  200  mA 
j
=25°C, VD=12V  3.0  Volts 
j
=125°C, VD= ½ V
j
DRM
  0.15  Volts 
DRM
600      V/µs 
Holding Current   IH    300  mA 
Peak Forward Gate Current   I 
Peak Reverse Gate Voltage   V 
Maximum Average Gate Power Dissipation   P
   4.0  Amp 
GTM
   5  Volts 
GRM
   16  Watts
GM (AVE)
Thermal Characteristics 
Characteristics Symbol 
Thermal Resistance, Junction to Case 
Thermal Impedance Coeff i cients 
R
Θ
J-C
Z
Θ
J-C
Per Module, both conducting 
Per Junction, both conducting 
 Z
Θ
J-C
+ K
+ K 
+ K
Thermal Resistance, Case to Sink Lubricated 
R
Θ
C-S
= K1 (1-exp(-t/
 (1-exp(-t/
2
 (1-exp(-t/
3
 (1-exp(-t/
4
)) 
1
t
)) 
2
t
)) 
3
t
)) 
4
t
= 5.04 E-04
K
1 
K2 = 2.31 E-03 
K3 = 2.83 E-03
K4 =5.24 E-02 
Per Module      0.009 
                                                                                                10/04/2002 
Max.   Units 
0.029 
0.058 
= 2.47 E-03
1 
t
= 4.42 E-02
2 
t
= 1.370   
3 
t
 = 9.668 
4
t
C/W 
°
C/W 
°
C/W 
°
 
 
Page 4
PRELIMINARY
PD43__06
Powerex, Inc., Hillis Street, Youngwood, Pennsy l vania 15697 (724) 925-7272
                                                                              600 Amperes / Up to 2400 Volts 
Typical On-State Forward Voltage Drop
4
(Tj = 125C)
0.06
           Dual SCR Module
Maximum Transient Thermal Impedance
(Junction To Case)
3.5
3
2.5
2
1.5
1
On-State Voltage - Vt - Volts
0.5
0
10  100  1000  10000  100000
1200
1000
800
600
400
200
Max. Power Dissipation Per SCR - Watts_
0
0  100  200  300  400  500  600  700  800
1600
1400
1200
1000
800
600
400
Max. Power Dissipation Per SCR - Watts_
200
0
0  200  400  600  800  1000  1200  1400
Instantaneous On-State Current - It - Amperes
Maximum On-State Power Dissipation 
(Sinusoidal Waveform)
90°
60°
30°
15° 
180
0
CONDUCTION ANGLE
Average On-State Current - It(av) - Amperes
Maximum On-State Power Dissipation
(Rectangular Waveform)
270° 
180° 
120°
90°
60°
30° 
15°
180
0
CONDUCTION ANGLE
Average On-State Current - It(av) - Amperes
    360°
360
                        10/04/2002 
120°
0.05
0.04
0.03
0.02
Thermal Impedance - R jc - °C/W
0.01
0.00
0.001  0.01  0.1  1  10  100
Maximum Allowable Case Temperature
Time - t - Seconds
(Sinusoidal Waveform)
130
 180°
360
120
110
180
100
90
80
Max. Case Temperature - Tcase -°C_ 
70
60
0  100  200  300  400  500  600  700  800
15°
30°
60°
0
CONDUCTION ANGLE
90°
120°
360
 180°
Average On-State Current - It(av) - Amperes
Maximum Allowable Case Temperature
(Rectangular Waveform)
130 
120 
110 
100
90 
80 
70 
60
Max. Case Temperature - Tcase -°C_ 
50
15°
30°
60°
90°
120°
180
0
CONDUCTION ANGLE
180°
270°
360
360° 
40
0  200  400  600  800  1000  1200  1400
Average On-State Current - It(av) - Amperes
 
 
Page 5
PRELIMINARY
PD43__06
Powerex, Inc., Hillis Street, Youngwood, Pennsy l vania 15697 (724) 925-7272
                                                                                 600 Amperes / Up to 2400 Volts 
              Dual SCR Module
                                                                                              10/04/2002