ND42__25
Powerex, Inc., Hillis Street, Youngwood, Pennsy l vania 15697 (724) 925-7272
Dual SCR/Diode Isolated Module
OUTLINE DRAWING
K1
G1
J
G
D
E
K1
G1
M K
V
T - M8 THD. (3 TYP.)
U - DIA. (4 TYP.)
A
C
B
A
Q
P
K
DIODE 2
A
AK
N
K
S
W
W
H
L
R
SCR 1
AK
F
ND42__25
Dual SCR/Diode Isolated
POW-R-BLOK
TM
Module
250 Amperes / 600-1600 Volts
CONNECTION DIAGRAM
ND42 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 1.35 34.3
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 .22 Dia. 5.6 Dia.
V .110 x .032 2.8 x 0.8
W .12 3.0
Note: Dimensions are for reference only.
Ordering Information
Select the complete eight digit
module part number from the table
below.
Example: ND421625 is a 1600Volt,
250 Ampere Dual SCR/Diode
Isolated
POW-R-BLOK
Type
ND42 06
Voltage
Volts
(x100)
08
10
12
14
16
:
TM
Module
Current
Amperes
(x 10)
25
POW-R-BLOK
250 Amperes / Up to 1600 Volts
Description:
Powerex Dual SCR/Diode 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.
POW-R-BLOK
recognized by the Underwriters
Laboratories.
Features:
T Electrically Isolated Heatsinking
T Aluminum Nitride Insulator
T Compression Bonded Elements
T Metal Baseplate
T Low Thermal Impedance
for Improved Current Capability
T Quick Connect Gate Terminal
with Provision for Keyed Mating
Plug
T UL Recognized
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 Battery Supplies
T Power Supplies
T Large IGBT Circuit Front Ends
TM
TM
has been tested and
Revision Date: 12/04/2002
ND42__25
Powerex, Inc., Hillis Street, Youngwood, Pennsy l vania 15697 (724) 925-7272
Dual SCR/Diode Isolated Module
POW-R-BLOK
250 Amperes / Up to 1600 Volts
TM
Absolute Maximum Ratings
Characteristics Conditions Symbol Units
Repetitive Peak Forward and Reverse Blocking
Voltage
Non-Repetitive Peak Reverse Blocking Voltage
(t < 5 msec)
RMS Forward Current 180° Conduction, TC=89°C I
Average Forward Current 180° Conduction, TC=89°C I
Peak One Cycle Surge Current, Non-Repetitive 60 Hz, 100% V
Peak Three Cycle Surge Current, Non-Repetitive 60 Hz, 100%V
Peak Ten Cycle Surge Current, Non-Repetitive 60 Hz, 100% V
I2t for Fusing for One Cycle, 8.3 milliseconds I2t 322,000 A2 sec
Maximum Rate-of-Rise of On-State Current,
(Non-Repetitive)
V
D
T
=25°C, IG=500mA,
j
=0.67 V
T
r
Peak Gate Power Dissipation PGM 16 W
Average Gate Power Dissipation P
Peak Forward Gate Current I
Peak Forward Gate Voltage V
Peak Reverse Gate Voltage V
Operating Temperature TJ -40 to +130 °C
Storage Temperature T
Max. Mounting Torque, M6 Mounting Screw 45
Max. Mounting Torque, M8 Terminal Screw 110
Module Weight, Typical 840 g
1.85 lb
V Isolation @ 25C V
V
V
& V
DRM
RRM
1600 V
RSM
T(RMS)
250 A
8800 A
4685 A
4040 A
reapplied I
RRM
reapplied I
RRM
reapplied I
RRM
T(AV) /IF(AV)
TSM/IFSM
TSM/IFSM
TSM/IFSM
di/dt 800 A/µs
DRM (Rated), ITM
=π I
T(AV)
,
< 0.5µs, tp > 6µs
3 W
G(AV)
4 A
GFM
10 V
GFM
5 V
GRM
-40 to +150 °C
stg
2500 V
rms
up to 1600 V
393
in.-Lb.
5
Nm
in.-Lb.
12
Nm
A
Revision Date: 12/04/2002
ND42__25
Powerex, Inc., Hillis Street, Youngwood, Pennsy l vania 15697 (724) 925-7272
Dual SCR/Diode Isolated Module
POW-R-BLOK
250 Amperes / Up to 1600 Volts
TM
Electrical Characteristics, TJ=25°C unless otherwise specified
Characteristics Symbol Test Conditions Min. Max.
Repetitive Peak Forward Leakage Current I
Repetitive Peak Reverse Leakage Current I
Peak On-State Voltage V
Threshold Voltage, Low-level
Slope Resistance, Low-level
Threshold Voltage, High-level
Slope Resistance, High-level
VTM /VFM Coefficients, Full Range
Minimum dV/dt dV/dt Exponential to 2/3 V
Turn-On Time (Typical) ton I
Turn-Off Time (Typical) t
Up to 1600V, TJ=130°C 50 mA
DRM
Up to 1600V, TJ=130°C 50 mA
RRM
I
TM /VFM
V
V
(TO)1
r
T1
(TO)2
r
T2
= 130°C, I = 15%I
T
J
= 130°C, I = πI
T
J
TJ = 130°C, I = 15%I
T
off
V
/VFM = A+ B Ln I +C I + D Sqrt I
TM
T
=130°C, Gate Open
j
= 100A, VD = 100V 7 (Typical) µs
TM
= 130°C, IT= 250A
J
=625A 1.30 V
TM /IFM
to πI
T(AV)
to I
T(AV)
T(AV)
DRM
0.819
T(AV)
0.47
TSM
to I
TSM
A =
B =
C =
D =
500 V/µs
9.25 E-4
-0.0286
150 (Typical) µs
0.589 V mΩ
0.731 V mΩ
0.5849
0.1060
Re-Applied dV/dt = 20V/µs
Linear to 0.8 V
Gate Trigger Current IGT T
Gate Trigger Voltage VGT T
Non-Triggering Gate Voltage V
T
GDM
=25°C, VD=12V 150 mA
j
=25°C, VD=12V 3.0 Volts
j
=130°C, VD= ½ V
j
DRM
0.15 Volts
DRM
Units
Thermal Characteristics
Characteristics Symbol
Thermal Resistance, Junction to Case
Thermal Impedance Coefficients
R
Z
ΘJ-C
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
ΘC-S
= K1 (1-exp(-t/
(1-exp(-t/
2
(1-exp(-t/
3
(1-exp(-t/
4
))
τ
1
))
τ
2
))
τ
3
))
τ
4
Per Module 0.03 °C/W
= 5.27E-3
K
1
K2 = 1.17E-2
K3 = 5.26E-2
K4 = 6.97E-2
Max. Units
0.07
0.14
= 1.69E-4
1
τ
= 2.07E-2
τ2
= 2.37E-1
τ3
= 2.46
τ4
°C/W
°C/W
Revision Date: 12/04/2002
ND42__25
C
Powerex, Inc., Hillis Street, Youngwood, Pennsy l vania 15697 (724) 925-7272
Dual SCR/Diode Isolated Module
Maximum On-State Forward Voltage Drop
5.00
4.00
3.00
2.00
On-State Voltage - Vtm - Volts
1.00
0.00
10 100 1000 10000
Instantaneous On-State Current - Itm - Amperes
( Tj = 130 °C )
Maxim um On-State Power Dissipation
300
250
200
150
100
Max. Power Dissipation Per SCR - Watts
50
0
0 50 100 150 200 250 300
(Sinusoidal Waveform)
120°
90°
60°
30°
15°
180
0
CONDUCTION ANGLE
Avera g e On-Sta te Cur re nt - It/If(av) - A mpere s
360
180°
0.14
0.12
0.1
0.08
0.06
0.04
Thermal Impedance - Rjc - °C/W
0.02
0
0.001 0.01 0.1 1 10 100
130
125
120
115
110
105
100
95
90
Max. Case Temperature - Tcase -°
85
80
0 50 100 150 200 250 300
POW-R-BLOK
250 Amperes / Up to 1600 Volts
Maximum Transient Thermal Impedance
(Junction to Case, Per Junction)
Time - t - Seconds
Maximum Allowable C ase Temperat ur e
(Sinusoidal Wa ve f orm)
15°
30°
Average On-State Current - It / If(av) - Amperes
TM
180 360
0
CONDUCTION ANGLE
60°
90°
120°
180°
Maximum On-State Power Dissipation
400
350
300
250
200
150
100
50
Max. Power Dissipation Per Junction - Watt s
0
0 50 100 150 200 250 300 350 400 450
(Rectangular Waveform)
30°
15°
60°
90°
180°
120°
0
CONDUCTION ANGLE
270°
360°
180
360
Average On-State Current - It / If(av) - Amperes
130
120
110
100
90
80
Max. Case Temperature - Tcase -°C
70
Maximum Allowab le Case Temperature
(Rectangul ar Wave f or m)
180
270°
360
360°
0
CONDUCTION ANGLE
30°
15°
90°
60°
120°
180°
0 50 100 150 200 250 300 350 400 450
Average On-State Current - It / If(av) - Amperes
Revision Date: 12/04/2002
ND42__25
Powerex, Inc., Hillis Street, Youngwood, Pennsy l vania 15697 (724) 925-7272
Dual SCR/Diode Isolated Module
Powerex
Total Power Dissipation (W)
2000
1800
1600
1400
1200
1000
800
600
400
200
0
0.02 0.015 0.01
0.025
0.03
0.04
0.05
0.06
0.08
0.10
0.12
0.15
0.20
0.30
10 30 50 70 90 110 130
ND42--25
Ambient Temperature (C)
Pow-R-Blok
Rth S-A (C/W)
6-Pulse Bridge
Total Power Dissipation vs Maximum Rated Output Current
2000
1800
1600
1400
1200
1000
800
600
400
200
0
0 100 200 300 400 500 600 700 800
POW-R-BLOK
250 Amperes / Up to 1600 Volts
Maximum Bridge Output Current (A)
TM
2000
1800
1600
1400
1200
1000
800
600
400
200
0
Total Power Dissipation (W)
Six-Pulse Bridge Circuit Total Power Dissipation & Maximum Rated Output Current With Sink to Ambient
Resistance of Heatsink as a Parameter.
Revision Date: 12/04/2002
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