Dual Diode
Isolated Module
180 Amperes/4500 Volts
QRD4518001
111/14 Rev. 7
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
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 the suitability of use, reliability, capability, or future availability of this product.
Description:
High voltage diodes feature highly
insulating housings that offer
enhanced protection by means of
greater creepage and strike clear-
ance distance for many demanding
applications like medium voltage
drives and auxiliary traction
applications.
Features:
Aluminum Nitride (AlN) Ceramic
Substrate for Low Thermal
Impedance
Copper Baseplate
Industry Standard Packages
Allow Common Bus Work to
Complementary High Isolation
Diodes
No Additional Insulation
Components Required
Applications:
Diodes for 18-24 Pulse Front
End Rectifiers in 10.2 KV
Isolation
High Voltage Power Supplies
Medium Voltage Drives
Motor Drives
Traction
Outline Drawing and Circuit Diagram
Dimensions Inches Millimeters
M 0.38 9.75
N 0.20 5.0
Q 1.44 36.5
R 0.16 4.0
S M6 Metric M6
T 0.63 Min. 16.0 Min.
V 0.28 Dia. 7.0 Dia.
Dimensions Inches Millimeters
A 5.51 140.0
B 2.87 73.0
C 1.89 48.0
D 4.88±0.01 124.0±0.25
E 2.24±0.01 57.0±0.25
F 1.18 30.0
G 0.43 11.0
32
1
N
S NUTS
(3TYP)
V (4TYP)
M
G (3TYP) R (DEEP)
EB
T (SCREWING
DEPTH)
Q
1
2
3
F F
D
A
C
QRD4518001
Dual Diode Isolated Module
180 Amperes/4500 Volts
2
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272 www.pwrx.com
11/14 Rev. 7
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 the suitability of use, reliability, capability, or future availability of this product.
Absolute Maximum Ratings, Tj = 25 °C unless otherwise specied
Ratings Symbol QRD4518001 Units
Repetitive Peak Reverse Blocking Voltage VRRM 4500 Volts
Non-Repetitive Peak Reverse Blocking Voltage (t < 5 msec) VRSM VRRM + 100 Volts
RMS Forward Current IF(RMS) 282 Amperes
Average Forward Current (180° Conduction, TC = 95°C) IF(AV) 180 Amperes
Peak One Cycle Surge Current, Non-Repetitive 60 Hz, 100% VRRM Reapplied IFSM 3860 Amperes
50 Hz, 100% VRRM Reapplied IFSM 3475 Amperes
60 Hz, No VRRM Reapplied IFSM 5800 Amperes
50 Hz, No VRRM Reapplied IFSM 5215 Amperes
I2t for Fusing for One Cycle 8.3 Milliseconds I2t 140,000 A2sec
10 Milliseconds I2t 151,000 A2sec
Operating Temperature Tj -40 to 150 °C
Storage Temperature Tstg -40 to 150 °C
Maximum Mounting Torque, M6 Mounting Screws — 44 in-lb
5.0 Nm
Maximum Mounting Torque, M6 Terminal Screws — 44 in-lb
5.0 Nm
Module Weight (Typical) — 750 Grams
1.65 Pounds
Isolation Voltage (@ 25°C, 60Hz, 1 min.) Vrms 10.2 kV
QRD4518001
Dual Diode Isolated Module
180 Amperes/4500 Volts
3
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272 www.pwrx.com
11/14 Rev. 7
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 the suitability of use, reliability, capability, or future availability of this product.
Electrical Characteristics, Tj = 25 °C unless otherwise specied
Characteristics Symbol Test Conditions Min. Typ. Max. Units
Repetitive Peak Reverse Leakage Current IRRM VRRM = 4500V, Tj = 150°C — — 30 mA
Peak On-State Voltage VFM Tj = 150°C, IFM = 180A — — 1.35 Volts
Threshold Voltage (Low-Level) V(TO)1 Tj = 150°C, I = 15% IF(AV) to ∏IF(AV) — — 0.27 Volts
Slope Resistance (Low-Level) rT1 — — 5.216 mΩ
Threshold Voltage (High-Level) V(TO)2 Tj = 150°C, I = ∏IF(AV) to IFSM Volts
Slope Resistance (High-Level) rT2 mΩ
VTM Coefficients (Full Range) Tj = 150°C, I = 15% IF(AV) to IFSM A = 0.726
B = -577E-07
VTM = A + B Ln I + CI + D Sqrt I C = 5.22E-03
D = -3.08E-07
Thermal and Mechanical Characteristics, Tj = 25 °C unless otherwise specied
Characteristics Symbol Test Conditions Min. Typ. Max. Units
Thermal Resistance, Junction to Case Rth(j-c) Per Diode — — 0.099 °C/W
Thermal Impedance Coefficients Zth(j-c) Zth(j-c) = K1 (1-exp(-t/τ1)) K1 = 1.34E-04 τ1 = 1.95E-03
+ K2 (1-exp(-t/τ2)) K2 = 8.29E-03 τ2 = 4.90E-03
+ K3 (1-exp(-t/τ3)) K3 = 1.36E-02 τ3 = 5.18E-02
+ K4 (1-exp(-t/τ4)) K4 = 7.89E-02 τ4 = 0.221
Thermal Resistance, Rth(c-s) Thermal Grease Applied — — 0.018 °C/W
Case to Sink Lubricated λgrease = 1 W/mK
QRD4518001
Dual Diode Isolated Module
180 Amperes/4500 Volts
4
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272 www.pwrx.com
11/14 Rev. 7
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 the suitability of use, reliability, capability, or future availability of this product.
0
INSTANTANEOUS
ON-STATE CURRENT, IFM, (AMPERES)
MAXIMUM ON-STATE
FORWARD VOLTAGE DROP
1
2
3
4
5
ON-STATE VOLTAGE, VFM, (VOLTS)
Tj = 150°C
180°
120°
90°
60°
30°
15°
TRANSIENT THERMAL
IMPEDANCE CHARACTERISTICS
(JUNCTION TO CASE)
MAXIMUM ON-STATE
POWER DISSIPATION
(SINUSOIDAL WAVEFORM)
0.12
0.10
10-4
10110210310410-3 10-2 10-1 100101102
0.08
0.02
0.04
0.06
0
600
400
500
300
100
200
0
TRANSIENT THERMAL IMPEDANCE, Rth(j-c), (°C/W)
MAXIMUM POWER DISSIPATION
PER DIODE, (WATTS)
AVERAGE ON-STATE CURRENT, IF(AV), (AMPERES)
0 50 100 150 200
°CONDUCTION ANGLE
0 360180
180°
120°
90°
60°
30°
15°
MAXIMUM ALLOWABLE
CASE TEMPERATURE
(SINUSOIDAL WAVEFORM)
150
140
130
120
80
90
100
110
70
MAXIMUM CASE TEMPERATURE, TCASE, (°C)
AVERAGE ON-STATE CURRENT, IF(AV), (AMPERES)
0 40 80 120 160 200
°CONDUCTION ANGLE
0 360180
TIME, t (sec)
QRD4518001
Dual Diode Isolated Module
180 Amperes/4500 Volts
5
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272 www.pwrx.com
11/14 Rev. 7
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 the suitability of use, reliability, capability, or future availability of this product.
360°
180° 270°
120°
60°
30°
15°
MAXIMUM ON-STATE
POWER DISSIPATION
(RECTANGULAR WAVEFORM)
700
200
100
400
500
600
300
0
MAXIMUM POWER DISSIPATION
PER DIODE, (WATTS)
AVERAGE ON-STATE CURRENT, IF(AV), (AMPERES)
0 100 15050 200 250 300 0 50 100 150 200 250 300
270°
360°(DC)
180°
120°
90°
30° 60°
15°
MAXIMUM ALLOWABLE
CASE TEMPERATURE
(RECTANGULAR WAVEFORM)
150
140
120
130
80
90
100
110
70
MAXIMUM CASE TEMPERATURE, TCASE, (°C)
AVERAGE ON-STATE CURRENT, IF(AV), (AMPERES)
°CONDUCTION ANGLE
0 360180
°CONDUCTION ANGLE
0 360180
90°