ND41__26
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
POW-R-BLOK
TM
Dual Diode Isolated Module
260 Amperes / Up to 2400 Volts
OUTLINE DRAWING
T - M8 THD. (3 TYP.)
M
K
U - DIA. (4 TYP.)
Description:
Powerex Dual Diode Modules are
designed for use in applications
requiring rectification 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.
ND41__26
Dual Diode Isolated
POW-R-BLOK
TM
Module
260 Amperes / 600-2400 Volts
A
G J
AK
N
K
C
B
S
A
Q
W
P
E
W
R
L
H
F
Features:
Electrically Isolated Heatsinking
Aluminum Nitride Isolator
Compression Bonded Elements
Metal Baseplate
Low Thermal Impedance
for Improved Current Capability
UL Recognized
DIODE 1
K
AK
A
DIODE 2
CONNECTION DIAGRAM
Benefits:
Ordering Information:
Select the complete eight digit
module part number from the table
below.
Example: ND412026 is a 2000Volt,
260 Ampere Dual Diode Isolated
TM
POW-R-BLOK
Module
No Additional Insulation
Components Required
Easy Installation
No Clamping Components
Required
Reduce Engineering Time
ND41 Outline Dimensions
Dimension
A
B
C
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
W
Inches
4.57
3.66
3.15
2.06
2.05
1.97
1.90
1.50
1.38
1.26
1.122
.71
.57
.625
.394
.350
M8 Metric
.250 Dia.
.12
Millimeters
116
93
80.0
52.3
52.0
50.0
48.3
38.1
35.0
32.0
28.5
18.0
14.5
15.9
10.00
8.9
M8
6.35 Dia.
3.0
Applications:
Type
ND41
Voltage
Volts
(x100)
06
08
10
12
14
16
18
20
22
24
Current
Amperes
(x10)
26
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
ND41__26
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
POW-R-BLOK
TM
Dual Diode Isolated Module
260 Amperes / Up to 2400 Volts
Absolute Maximum Ratings
Characteristics
Repetitive Peak Reverse Blocking Voltage
Non-Repetitive Peak Reverse Blocking Voltage
(t < 5 msec)
RMS Forward Current
Average Forward Current
Peak One Cycle Surge Current, Non-Repetitive
Peak Three Cycle Surge Current, Non-Repetitive
Peak Ten Cycle Surge Current, Non-Repetitive
I t for Fusing for One Cycle, 8.3 milliseconds
Operating Temperature
Storage Temperature
Max. Mounting Torque, M6 Mounting Screw
Max. Mounting Torque, M8 Terminal Screw
Module Weight, Typical
V Isolation @ 25C
V
rms
2
Conditions
Symbol
V
RRM
V
RSM
up to 2400
V
RRM
+ 200
408
260
8000
5750
4975
266,000
-40 to +150
-40 to +150
45
5
110
12
840
1.85
2500
Units
V
V
A
A
A
A
A
A sec
°C
°C
in.-Lb.
Nm
in.-Lb.
Nm
g
lb.
V
2
180° Conduction, T
C
=112°C
180° Conduction, T
C
=112°C
60 Hz, 100% V
RRM
reapplied
60 Hz, 100% V
RRM
reapplied
60 Hz, 100% V
RRM
reapplied
I
F(RMS)
I
F(AV)
I
FSM
I
FSM
I
FSM
It
T
J
T
stg
2
Revision Date: 05/17/2010
ND41__26
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
POW-R-BLOK
TM
Dual Diode Isolated Module
260 Amperes / Up to 2400 Volts
Electrical Characteristics, T
J
=25°C unless otherwise specified
Characteristics
Repetitive Peak Reverse Leakage Current
Peak On-State Voltage
Threshold Voltage, Low-level
Slope Resistance, Low-level
Threshold Voltage, High-level
Slope Resistance, High-level
V
TM
Coefficients, Full Range
Symbol
I
RRM
V
FM
V
(TO)1
r
T1
V
(TO)2
r
T2
Test Conditions
Up to 2400V, T
J
=150°C
I
FM
=1500A
T
J
= 150°C, I = 15%I
F(AV)
to
πI
F(AV)
T
J
= 150°C, I =
πI
F(AV)
to I
FSM
T
J
= 150°C, I = 15%I
F(AV)
to I
FSM
V
FM
= A+ B Ln I +C I + D Sqrt I
Diode Reverse Recovery Time (Typical)
t
rr
I
fm
= 1500A, T
p
= 190 µs
di/dt = -25A/µs
A=
B=
C=
D=
Min.
Max.
50
1.35
0.764
0.360
.710
0.420
0.7140
0.0232
4.72 E-4
-6.71 E-3
10
µ
s
Units
mA
V
V
mΩ
V
mΩ
Thermal Characteristics
Characteristics
Thermal Resistance, Junction to Case
Thermal Impedance Coefficients
Symbol
R
ΘJ-C
Z
Θ
J-C
Per Module, both conducting
Per Junction both conducting
Z
Θ
J-C
= K
1
(1-exp(-t/τ
1
))
+ K
2
(1-exp(-t/τ
2
))
+ K
3
(1-exp(-t/τ
3
))
+ K
4
(1-exp(-t/τ
4
))
Thermal Resistance, Case to Sink Lubricated
R
ΘC-S
Per Module
K
1
= 5.27E-3
K
2
= 1.17E-2
K
3
= 5.26E-2
K
4
= 6.97E-2
Max.
0.07
0.14
τ
1
= 1.69E-4
τ
2
= 2.07E-2
τ
3
= 2.37E-1
τ
4
= 2.46
0.03
°C/W
Units
°C/W
°C/W
Revision Date: 05/17/2010
ND41__26
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
POW-R-BLOK
TM
Dual Diode Isolated Module
260 Amperes / Up to 2400 Volts
Ma x im um On-Sta te Forw a rd Volta ge Drop
( Tj = 150 °C )
5
Maximum Transient Thermal Impedance
(Junction to Case)
.16
Thermal Impedance - Rjc - °C/W
.14
.12
.10
.08
.06
.04
.02
On-State Voltage - Vfm - Volts
4
3
2
1
0
10
100
1000
10000
.00
0.001
0.01
0.1
1
10
100
Instantaneous On-State Current - Ifm - Amperes
Time - t - Seconds
Maximum On-State Power Dissipation
(Sinusoidal Waveform)
300
120°
90°
200
60°
150
30°
15°
180°
Maximum Allowable Case Temperature
(Sinusoidal Waveform)
150
145
140
135
130
125
120
115
110
15°
30°
60°
90°
120°
180°
0
180
360
Max. Power Dissipation Per Diode - Watts_
Max. Case Temperature - Tcase -°C_
250
CONDUCTION ANGLE
100
0
180
360
50
CONDUCTION ANGLE
0
0
50
100
150
200
250
300
Average On-State Current - If(av) - Amperes
0
50
100
150
200
250
300
Average On-State Current - If(av) - Amperes
Maximum On-State Power Dissipation
(Rectangular Waveform)
400
Maximum Allowable Case Temperature
(Rectangular Waveform)
150
270°
360°
Max. Power Dissipation Per Diode - Watts_
Max. Case Temperature - Tcase -°C_
350
300
250
200
30°
150
100
0
140
0
180°
120°
90°
60°
130
15°
CONDUCTION ANGLE
180
360
30°
60°
90°
120°
180°
270°
360°C
120
15°
110
50
0
0
50
100
150
200
250
CONDUCTION ANGLE
180
360
100
90
300
350
400
450
0
50
100
150
200
250
300
350
400
450
Average On-State Current - If(av) - Amperes
Average On-State Current - If(av) - Amperes
Revision Date: 05/17/2010
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