LD421850
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
Dual SCR/Diode Isolated Module
500 Amperes / 1800 Volts
TM
OUTLINE DRAWING
A
R
B
C
J
F
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.
TM
POW-R-BLOK
has been tested and
recognized by the Underwriters
Laboratories.
LD421850
Dual SCR/Diode
TM
POW-R-BLOK Module
500 Amperes / 1800 Volts
K
G
D
3
2
1
L
Q - DIA. (4 TYP.)
H
P - M10 THD (3 TYP.)
M
Features:
T
T
T
T
T
Millimeters
150.0
124.0
112.0
60.0
52.0
50.0
48.0
44.0
31.0
28.0
25.4
17.5
10.0
M10
6.5 Dia.
6.0
3.0
2.5 x 0.8
T - (4 TYP.)
S
LD42 Outline Dimensions
E
4
5
7
6
Dimension
A
N
Inches
5.91
4.88
4.41
2.36
2.05
1.97
1.89
1.73
1.22
1.10
1.00
0.69
0.39
M10 Metric
0.26 Dia.
0.24
0.12
.110 x .032
Electrically Isolated Heatsinking
Aluminum Nitride Isolator
Compression Bonded Elements
Metal Baseplate
Low Thermal Impedance
for Improved Current Capability
T
UL Recognized
B
C
D
Benefits:
T
No Additional Insulation
Components Required
T
Easy Installation
T
No Clamping Components
Required
T
Reduce Engineering Time
5
4
2
1
E
F
3
G
H
J
K
CONNECTION DIAGRAM
Applications:
T
T
T
T
T
Bridge Circuits
AC & DC Motor Drives
Battery Supplies
Power Supplies
Large IGBT Circuit Front Ends
Ordering Information
:
L
M
N
P
Q
R
S
T
Select the complete eight-digit
module part number from the table
below.
Example: LD421850 is a 1800V,
500 Ampere Dual SCR/Diode
TM
Isolated
POW-R-BLOK
Module.
Type
LD42
Voltage
Volts
(x100)
18
Current
Amperes
(x10)
50
Note: Dimensions are for reference only.
Revision Date: 9/16/2002
LD421850
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
Dual SCR/Diode Isolated Module
500 Amperes / 1800 Volts
TM
Absolute Maximum Ratings
Characteristics
Repetitive Peak Forward and Reverse Blocking
Voltage
Non-Repetitive Peak 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
Maximum Rate-of-Rise of On-State Current,
(Repetitive)
Operating Temperature
Storage Temperature
Max. Mounting Torque, M6 Mounting Screw
Max. Mounting Torque, M10 Terminal Screw
Module Weight, Typical
V Isolation @ 25C
V
rms
2
Conditions
Symbol
V
DRM
& V
RRM
V
RSM
I
T(RMS)
1800
1900
900
500
540
17,000
16,300
12,250
10,500
1.20 x 10
1.33 x 10
200
6
6
Units
V
V
A
A
A
A
A
A
A
A sec
2
A sec
A/µs
°C
°C
in. – Lb.
Nm
in. – Lb.
Nm
g
lb
V
2
180° Conduction, T
C
=84°C
180° Conduction, T
C
=80°C
60 Hz, 100% V
RRM
reapplied
50 Hz, 100% V
RRM
reapplied
60 Hz, 100%V
RRM
reapplied
60 Hz, 100% V
RRM
reapplied
8.3 milliseconds
10 milliseconds
Per JEDEC Standard 397 5.2.2.6
I
T(AV)
I
T(AV)
I
TSM
I
TSM
I
TSM
I
TSM
It
2
It
di/dt
T
J
T
stg
2
-40 to +130
-40 to +150
55
6
110
12
1500
3.30
3000
Revision Date: 9/16/2002
LD421850
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
Dual SCR/Diode Isolated Module
500 Amperes / 1800 Volts
TM
Electrical Characteristics, T
J
=25°C unless otherwise specified
Characteristics
Repetitive Peak Forward Leakage Current
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
DRM
I
RRM
V
FM
V
FM
V
(TO)1
r
T1
V
(TO)2
r
T2
Test Conditions
Up to 1800V, T
J
=130°C
Up to 1800V, T
J
=130°C
I
TM
=1500A, T
J
=25°C
I
TM
=1500A, T
J
=130°C
T
J
= 130°C, I = 15%I
T(AV)
to
π
I
T(AV)
T
J
= 130°C, I =
π
I
T(AV)
to I
TSM
T
J
= 130°C, I = 10A to 6kA
V
TM
= A+ B Ln I +C I + D Sqrt I
Minimum dV/dt
Gate Trigger Current
Gate Trigger Voltage
Non-Triggering Gate Voltage
Peak Forward Gate Current
Peak Reverse Gate Voltage
dV/dt
I
GT
V
GT
V
GDM
I
GTM
V
GRM
Exponential to V
DRM
T
j
=130°C, Gate Open
T
j
=25°C, V
D
=12V
T
j
=25°C, V
D
=12V
T
j
=130°C, V
D
= ½ V
DRM
A=
B=
C=
D=
1000 Typ.
200
3.0
0.25
4.0
5
Min.
Max.
80
80
1.45
1.40
0.916
0.28
1.01
0.25
0.9032
-5.98E-03
2.23E-04
4.05E-03
V/µs
mA
Volts
Volts
Amp
Volts
Units
mA
mA
V
V
V
m
Ω
V
m
Ω
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
))
Thermal Resistance, Case to Sink Lubricated
R
ΘC-S
+ K
4
(1-exp(-t/
τ
4
))
Per Module
K
1
= 8.03E-04
K
2
= 1.03E-02
K
3
= 1.64E-02
K
4
= 3.75E-02
Max.
0.0325
0.0650
τ
1
= 3.39E-04
τ
2
= 3.15E-03
τ
3
= 0.106
τ
4
= 2.066
0.01
Units
°C/W
°C/W
°C/W
Revision Date: 9/16/2002
LD421850
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
Dual SCR/Diode Isolated Module
500 Amperes / 1800 Volts
TM
Typical On-State Forward Voltage Drop
(Tj = 125C)
4
3.5
0.07
0.06
Maximum Transient Thermal Impedance
(Junction To Case)
On-State Voltage - Vtm - Volts
Thermal Impedance - Rjc - °C/W
3
2.5
2
1.5
1
0.5
0
10
100
1000
10000
0.05
0.04
0.03
0.02
0.01
0.00
0.001
0.01
0.1
1
10
100
Instantaneous On-State Current - Itm - Amperes
Time - t - Seconds
Maximum On-State Power Dissipation
(Sinusoidal Waveform)
700
600
500
60°
400
15°
300
200
100
0
0
50
100
150
200
250
300
350
400
450
500
Average On-State Current - It(av) - Amperes
30°
90°
120°
180°
Maximum Allowable Case Temperature
(Sinusoidal Waveform)
130
Max. Power Dissipation Per SCR - Watts_
Max. Case Temperature - Tcase -°C_
120
110
0
180
360
CONDUCTION ANGLE
100
15°
90
30°
60°
90°
120°
400
0
180
360
CONDUCTION ANGLE
180°
500
600
80
0
100
200
300
Average On-State Current - It(av) - Amperes
Maximum On-State Power Dissipation
(Rectangular Waveform)
900
Max. Power Dissipation Per SCR - Watts_
Maximum Allowable Case Temperature
(Rectangular Waveform)
130
800
700
600
500
400
300
200
100
0
0
100
200
300
400
500
600
0
270°
180°
120°
60°
30°
15°
90°
360°
Max. Case Temperature - Tcase -°C_
120
110
100
90
80
70
60
15°
30°
60°
90°
120°
270°
360°
0
180
360
CONDUCTION ANGLE
CONDUCTION ANGLE
180
360
180°
700
800
900
0
100
200
300
400
500
600
700
800
900
Average On-State Current - It(av) - Amperes
Average On-State Current - It(av) - Amperes
Revision Date: 9/16/2002
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