ND43__25
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
POW-R-BLOKTM
Dual SCR Isolated Module
250 Amperes / Up to 1600 Volts
Description:
OUTLINE DRAWING
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.
TM
POW-R-BLOK has been tested and
recognized by the Underwriters
Laboratories.
T - M8 THD. (3 TYP.)
M
K
U - DIA. (4 TYP.)
A
AK
K1
G1
G J
N
G2
K2
K
C
B
S
A
W
Q
V
P
W
D E
H
L
R
K1
G1
F
ND43__25
Dual SCR Isolated
POW-R-BLOKTM Module
250 Amperes / Up to 1600 Volts
SCR 1
K
AK
SCR 2
A
G2
K2
CONNECTION DIAGRAM
Features:
Electrically Isolated Heatsinking
Aluminum Nitride Insulator
Compression Bonded Elements
Metal Baseplate
Low Thermal Impedance
for Improved Current Capability
Quick Connect Gate Terminal
with Provision for Keyed Mating
Plug
UL Recognized
Ordering Information:
ND43 Outline Dimensions
Dimension
Inches
Millimeters
A
4.57
116
B
3.66
93
C
3.15
80.0
D
2.17
55.1
E
2.06
52.3
F
2.07
52.0
G
1.97
50.0
H
1.90
48.3
J
1.50
38.1
K
1.38
35.0
L
1.26
32.0
M
1.122
28.5
N
.71
18.0
P
.57
14.5
Q
.625
15.9
R
.394
10.00
S
.350
8.9
T
M8 Metric
M8
U
.250 Dia.
6.35 Dia.
V
.110 x .032
2.8 x 0.8
W
.12
3.0
Select the complete eight digit
module part number from the table
below.
Example: ND431625 is a 1600Volt,
250 Ampere Dual SCR Isolated
TM
POW-R-BLOK Module
Type
ND43
Voltage
Volts
(x100)
Current
Amperes
(x 10)
06
08
10
12
14
16
25
Benefits:
No Additional Insulation
Components Required
Easy Installation
No Clamping Components
Required
Reduce Engineering Time
Applications:
Bridge Circuits
AC & DC Motor Drives
Battery Supplies
Power Supplies
Large IGBT Circuit Front Ends
Note: Dimensions are for reference only.
Revision Date: 05/17/2010
ND43__25
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
POW-R-BLOKTM
Dual SCR Isolated Module
250 Amperes / Up to 1600 Volts
Absolute Maximum Ratings
Characteristics
Conditions
Symbol
Units
Repetitive Peak Forward and Reverse Blocking
Voltage
VDRM & VRRM
up to 1600
V
Non-Repetitive Peak Reverse Blocking Voltage
(t < 5 msec)
VRSM
1600
V
180° Conduction, TC=89°C
IT(RMS)
393
A
Average Forward Current
180° Conduction, TC=89°C
IT(AV)
250
A
Peak One Cycle Surge Current, Non-Repetitive
60 Hz, 100% VRRM reapplied
ITSM
8800
A
Peak Three Cycle Surge Current, Non-Repetitive
60 Hz, 100%VRRM reapplied
ITSM
4685
A
Peak Ten Cycle Surge Current, Non-Repetitive
60 Hz, 100% VRRM reapplied
ITSM
4040
A
It
2
322,000
A sec
di/dt
800
A/µs
PGM
16
W
RMS Forward Current
2
I t for Fusing for One Cycle, 8.3 milliseconds
Maximum Rate-of-Rise of On-State Current,
(Non-Repetitive)
Tj=25°C, IG=500mA,
2
VD=0.67 VDRM (Rated), ITM=π IT(AV),
Tr < 0.5µs, tp > 6µs
Peak Gate Power Dissipation
Average Gate Power Dissipation
PG(AV)
3
W
Peak Forward Gate Current
IGFM
4
A
Peak Forward Gate Voltage
VGFM
10
V
Peak Reverse Gate Voltage
VGRM
5
V
Operating Temperature
TJ
-40 to +130
°C
Storage Temperature
Tstg
-40 to +150
°C
45
5
110
12
840
in.-Lb.
Nm
in.-Lb.
Nm
g
1.85
lb
2500
V
Max. Mounting Torque, M6 Mounting Screw
Max. Mounting Torque, M8 Terminal Screw
Module Weight, Typical
V Isolation @ 25C
Vrms
Revision Date: 05/17/2010
ND43__25
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
POW-R-BLOKTM
Dual SCR Isolated Module
250 Amperes / Up to 1600 Volts
Electrical Characteristics, TJ=25°C unless otherwise specified
Characteristics
Symbol
Test Conditions
Repetitive Peak Forward Leakage Current
IDRM
Up to 1600V, TJ=130°C
50
mA
Repetitive Peak Reverse Leakage Current
IRRM
Up to 1600V, TJ=130°C
50
mA
Peak On-State Voltage
Min.
Max.
Units
VFM
ITM=625A
1.30
V
Threshold Voltage, Low-level
Slope Resistance, Low-level
V(TO)1
rT1
TJ = 130°C, I = 15%IT(AV) to πIT(AV)
0.819
0.589
V
mΩ
Threshold Voltage, High-level
Slope Resistance, High-level
V(TO)2
rT2
TJ = 130°C, I = πIT(AV) to ITSM
0.47
0.731
V
mΩ
VTM Coefficients, Full Range
TJ = 130°C, I = 15%IT(AV) to ITSM
VTM = A+ B Ln I +C I + D Sqrt I
Minimum dV/dt
A=
B=
C=
D=
0.5849
0.1060
9.25 E-4
-0.0286
dV/dt
Exponential to 2/3 VDRM
Tj=130°C, Gate Open
Turn-On Time (Typical)
ton
ITM = 100A, VD = 100V
7
(Typical)
µs
Turn-Off Time (Typical)
t off
150
(Typical)
µs
500
V/µs
Gate Trigger Current
IGT
TJ = 130°C, I T= 250A
Re-Applied dV/dt = 20V/µs
Linear to 0.8 VDRM
Tj=25°C, VD=12V
150
mA
Gate Trigger Voltage
VGT
Tj=25°C, VD=12V
3.0
Volts
Non-Triggering Gate Voltage
VGDM
Tj=130°C, VD= ½ VDRM
0.15
Volts
Thermal Characteristics
Characteristics
Symbol
Max.
Units
0.07
0.14
°C/W
°C/W
Thermal Resistance, Junction to Case
RΘJ-C
Per Module, both conducting
Per Junction both conducting
Thermal Impedance Coefficients
ZΘJ-C
ZΘJ-C= K1 (1-exp(-t/τ1))
K1 = 5.27E-3
τ1 = 1.69E-4
+ K2 (1-exp(-t/τ2))
+ K3 (1-exp(-t/τ3))
K2 = 1.17E-2
τ2 = 2.07E-2
K3 = 5.26E-2
τ3 = 2.37E-1
+ K4 (1-exp(-t/τ4))
Per Module
K4 = 6.97E-2
τ4 = 2.46
0.03
Thermal Resistance, Case to Sink Lubricated
RΘC-S
°C/W
Revision Date: 05/17/2010
ND43__25
POW-R-BLOKTM
Dual SCR Isolated Module
250 Amperes / Up to 1600 Volts
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
Maximum Transient Thermal Impedance
Maximum On-State Forward Voltage Drop
(Junction to Case, Per SCR)
( Tj = 130 °C )
0.14
5.00
0.12
ED41N
Thermal Impedance - Rjc - °C/W
On-State Voltage - Vtm - Volts
4.00
3.00
2.00
1.00
0.1
0.08
0.06
0.04
0.02
0.00
10
100
1000
0
0.001
10000
0.01
0.1
Instantaneous On-State Current - Itm - Amperes
130
180°
125
Max. Case Temperature - Tcase -°C
Max. Power Dissipation Per SCR - Watts
120°
90°
60°
200
30°
15°
150
100
180
0
360
CONDUCTION ANGLE
50
120
115
180
0
360
CONDUCTION ANGLE
110
105
15°
100
30°
60°
95
90°
120°
90
180°
85
80
0
0
50
100
150
200
250
0
300
50
Average On-State Current - It(av) - Amperes
100
200
250
300
Maximum Allowable Case Temperature
(Rectangular Waveform)
(Rectangular Waveform)
400
150
Average On-State Current - It(av) - Amperes
Maximum On-State Power Dissipation
130
350
360°
Max. Case Temperature - Tcase -°C
270°
Max. Power Dissipation Per SCR - Watts
100
(Sinusoidal Waveform)
(Sinusoidal W aveform)
250
10
Maximum Allowable Case Temperature
Maximum On-State Pow er Dissipation
300
1
Time - t - Seconds
180°
300
120°
90°
250
60°
200
15°
30°
150
100
0
180
360
CONDUCTION ANGLE
50
120
180
0
110
360
CONDUCTION ANGLE
100
30°
90
15°
60°
90°
120°
180°
80
270°
360°
70
0
0
50
100
150
200
250
300
350
Average On-State Current - It(av) - Amperes
400
450
0
50
100
150
200
250
300
350
400
450
Average On-State Current - It(av) - Amperes
Revision Date: 05/17/2010
ND43__25
POW-R-BLOKTM
Dual SCR Isolated Module
250 Amperes / Up to 1600 Volts
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
Total Power Dissipation vs Maximum Rated Output Current
Powerex ND43--25 Pow-R-Blok 6-Pulse Bridge
2000
2000
2000
1800
1800
1600
1600
1400
1400
1200 0.06
1200
1200
1000
1000
1000
0.02
1800
0.015
0.01
Rth S-A (C/W)
0.025
0.03
1600
1400
0.05
800
0.08
0.10
800
800
600
600
400
400
200
200
0.12
600 0.15
400
0.20
0.30
200
0
0
10
30
50
70
90
Ambient Temperature (C)
110
130
0
100
200
300
400
500
600
700
Total Power Dissipation (W)
Total Power Dissipation (W)
0.04
0
800
Maximum Bridge Output Current (A)
Six-Pulse Bridge Circuit Total Power Dissipation & Maximum Rated Output Current With Sink to Ambient
Resistance of Heatsink as a Parameter.
Revision Date: 05/17/2010
