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www.chtechnology.com - SPECIALISTS IN POWER ELECTRONIC COMPONENTS AND ASSEMBLIES - www.chtechnology.com
Powerex, Inc., 173 Pavilion Ln, Youngwood, PA 15697-1800 724 925-7272 www.pwrx.com
RBK8_ _40XX
GENERAL PURPOSE RECTIFIER DIODE
4000 Amperes 4500 Volts
Powerex General Purpose Rectifier Diodes are
designed with high locking voltage capability and
low forward voltage drop to minimize conduction
losses. These are packaged in hermetic, ceramic
Pow-R-Disc packages which can be mounted
using commercially available clamps and
heatsinks or fully assembled to a variety of air or
water cooled heat exchangers.
FEATURES:
Low On-State Voltage
Hermetic Ceramic Package
Excellent Surge and I
APPLICATIONS:
DC Power Supplies
ORDERING INFORMATION Input Rectifiers
Plating Supplies
Select the complete 12 digit Part Number using the table below.
EXAMPLE: RBK84540XXOO is a 4500V-4000A General Purpose Diode
with a typical reverse recovery time of 30µs.
PART
Voltage
Rating
V
DRM-VRRM
Voltage
Code
Current
Rating
I
tavg
Current
Code
Reverse
Recovery
t
RR
Lead
Code
RBK8 4500 45 4000 40 XX OO
4400 44
4200 42
30µs typical
4000 40
2
t Ratings
Page 1
Page 1
Revised: 10/15/2007
Absolute Maximum Ratings
Characteristic Symbol Rating Units
Repetitive Peak Reverse Voltage
Average On-State Current, T
RMS On-State Current, T
Average On-State Current, T
RMS On-State Current, T
C
=80°C
C
C
=55°C
C
=80°C
=55°C
Peak One Cycle Surge Current, 60Hz, V
Fuse Coordination I
2
t, 60Hz I2t
Peak One Cycle Surge Current, 50Hz, V
Fuse Coordination I
2
t, 50Hz I2t
=0.6*V
R
R
RRM
=0V I
V
RRM
I
F(Avg.)
I
F(RMS)
I
F(Avg.)
I
F(RMS)
I
FSM
FSM
4500 Volts
4000 A
6283 A
4600 A
7226 A
53,700 A
1.20E+07
65,514 A
1.79E+07
A2s
A2s
Operating Temperature Tj -40 to+175 °C
Storage Temperature
T
Stg.
-50 to+200 °C
Approximate Weight 2.5 lb
1.13 Kg
Mounting Force 6,000 - 10,000 lbs
26.6 - 44.4 Knewtons
Information presented is based upon manufacturers testing and projected
capabilities. This information is subject to change without notice. The
manufacturer makes no claim as to suitability for use, reliability, capability or
future availability of this product.
Page 2
Page 2
Electrical Characteristics, Tj=25°C unless otherwise specified
g
/
Rating
Characteristic Symbol Test Conditions min typ max Units
Repetitive Peak Reverse
Leakage Current
Peak On-State Voltage
Model, Low Level V
V
FM
VFM = V
+ r•I
O
FM
I
RRM
V
Tj=175°C, V
Tj=25°C, IFM=3000A
FM
Tj=175°C 0.75 V
0
15% I
r
FM
- π•I
RRM
FM
=Rated
100 150 ma
1.17 V
0.133 mΩ
VFM Model, High Level V
VFM Model,
V
FM
VFM = V
4-Term A Tj=175°C 0.597
= A + B•Ln(IFM) +
C•(I
O
) + D•(IFM)
FM
+ r•I
FM
½
Tj=175°C 0.88 V
0
- I
π•I
r
B
FM
15%IFM - I
FSM
FSM
0.122 mΩ
0.0131
C 1.153E-04
D 0.00212
Reverse Recovery Time
t
Tj=25°C, IFM=2000A
RR
/dt = 25 A/µs
di
R
30 µs
Thermal Characteristics
Rating
Characteristic Symbol Test Conditions min typ max Units
Thermal Resistance
Junction to Case
Case to Sink
Thermal Impedance Model
ZΘjc(t) =
Σ(A(N)•(1-exp(-t
RΘ
RΘ
ZΘ
Double side cooled 0.010 0.0115 °C/Watt
jc
Double side cooled 0.0015 0.002 °C/Watt
cs
Double side cooled
jc
Tau(N))))
where: N = 12 3 4
A(N) = 1.020E-05 8.786E-04 4.154E-03 6.431E-03
Tau(N) = 5.860E-04 1.409E-02 1.814E-01 1.208E+00
Page 3
Page 3
Maximum On-State Voltage Drop
4000
D
100
T
CONDUCTION ANGL E
5.00
4.50
4.00
3.50
3.00
2.50
VFM (V)
2.00
1.50
1.00
0.50
Tj = 175°C
1000 10000 100000
IFM (A)
MAXIMUM TRANSIENT THERMAL
IMPEDANCE
1.4E-02
1.2E-02
1.0E-02
8.0E-03
6.0E-03
4.0E-03
2.0E-03
0.0E+00
Thermal Impedance (°C/Watt)
0.01 0.1 1 10
Time (sec)
issipation (Watts)
Power
Power Dissipation (Watts)
Maximum On-State Power Dissipation
12000
10000
8000
6000
2000
0
0 1000 2000 3000 4000 5000
SINE WAVE
30°
Average On-State Current (A)
90°
Maximum On-State Power Dissipation
12000
10000
8000
6000
4000
2000
0
0 1000 2000 3000 4000 5000 6000
SQUARE WAVE
120°
60°
Average On-State Current (A)
180°
CONDUCTION ANGLE
0° 180° 360°
180°
360°
CONDUCTION ANGLE
0° 180° 360°
Maximum Allowable Case Temperature
180
160
140
120
emperature (°C)
80
Case
60
0° 180° 360°
0 1000 2000 3000 4000 5000
30°
Average On-State Current (A)
SINE WAVE
90°
Maximum Allowable Case Temperature
180
160
140
120
CONDUCTION ANGLE
100
80
Case Temperature (°C)
60
0° 180° 360°
0 1000 2000 3000 4000 5000 6000
SQUARE WAVE
60°
Average On-State Current (A)
120°
180°
360°
180°
Page 4
Page 4
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