CPT50235 - CPT50245
A
R
G
Baseplate
A=Common Anode
B
Q
N
W
Baseplate
Common Cathode
U
C
H
V
E
Baseplate
D=Doubler
Notes:
Baseplate: Nickel plated
copper
Schottky PowerMod
Dim. Inches
Min.
A
B
C
E
F
G
H
N
Q
R
U
V
W
Millimeters
Min.
Max.
Notes
Max.
F
U
---
3.630
0.800
0.700
0.640
0.615
0.130
0.120
0.510
0.490
1.375 BSC
0.030
0.007
---
---
0.290
0.275
3.150 BSC
0.600
---
0.312
0.340
0.180
0.195
---
92.20
17.78
20.32
15.53
16.26
3.30
3.05
12.45
12.95
34.92 BSC
0.76
0.18
---
---
6.99
7.37
80.01 BSC
15.24
---
7.92
8.64
4.57
4.95
1/4-20
Dia.
Dia.
Microsemi
Catalog Number
CPT50235*
Industry
Part Number
440CNQ030
444CNQ035
MBR50035CT
444CNQ040
MBR50040CT
444CNQ045
MBR50045CT
Repetitive Peak
Working Peak
Reverse Voltage Reverse Voltage
35V
35V
Schottky Barrier Rectifier
Guard Ring Protection
500 Amperes/35 to 45 Volts
150°C Junction Temperature
Reverse Energy Tested
ROHS Compliant
CPT50240*
CPT50245*
40V
45V
40V
45V
*Add Suffix A for Common Anode, D for Doubler
Electrical Characteristics
I F(AV) 500 Amps
Average forward current per pkg
I F(AV) 250 Amps
Average forward current per leg
I FSM 5000 Amps
Maximum surge current per leg
Maximum repetitive reverse current per leg I R(OV) 2 Amps
VFM
0.55 Volts
Max peak forward voltage per leg
VFM
0.49 Volts
Max peak forward voltage per leg
I RM
4.0 A
Max peak reverse current per leg
I RM
Max peak reverse current per leg
12.0 mA
CJ
Typical junction capacitance per leg
10500 pF
T C = 79°C, square wave, R0JC = 0.12°C/W
T C = 79°C, square wave, R0JC = 0.24°C/W
8.3ms, half sine, TJ = 150°C
f = 1 KHZ, 25°C, 1µsec square wave
I FM = 250A: J = 25°C*
T
I FM = 250A: J = 150°C*
T
VRRM, TJ = 125°C*
VRRM, TJ = 25°C*
VR = 5.0V,T C = 25°C
*Pulse test: Pulse width 300µsec, Duty cycle 2%
Thermal and Mechanical Characteristics
Storage temp range
Operating junction temp range
Max thermal resistance per leg
Max thermal resistance per pkg
Typical thermal resistance (greased)
Terminal Torque
Mounting Base Torque (outside holes)
Mounting Base Torque (center hole)
center hole must be torqued first
Weight
T STG
TJ
R OJC
R OJC
R OCS
-55°C to 150°C
-55°C to 150°C
0.24°C/W Junction to case
0.12°C/W Junction to case
0.08°C/W Case to sink
35-40 inch pounds
30-40 inch pounds
8-10 inch pounds
2.8 ounces (78 grams) typical
www.microsemi.com
September, 2014 - Rev. 8
CPT50235 - CPT50245
Figure 1
Typical Forward Characteristics - Per Leg
10,000
8000
6000
Junction Capacitance - pF
4000
Figure 3
Typical Junction Capacitance - Per Leg
100,000
60,000
40,000
20,000
10,000
6000
4000
2000
1000
0.1
2000
1000
800
600
400
Instantaneous Forward Current - Amperes
0.5
1.0
5.0
10
50
100
Reverse Voltage - Volts
Figure 4
200
Maximum Allowable Case Temperature - C
150 C
25 C
Forward Current Derating - Per Leg
175
160
145
130
115
100
85
70
60 90
0
100
120 180
200
300
DC
400
500
100
80
60
40
20
10
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Instantaneous Forward Voltage - Volts
Average Forward Current - Amperes
Figure 2
Typical Reverse Characteristics - Per Leg
10000
Typical Reverse Current - mA
1000
100
10
1.0
0.1 25 C
0
10
20
30
40
50
Reverse Voltage - Volts
150 C
Maximum Power Dissipation - Watts
Figure 5
Maximum Forward Power Dissipation - Per Leg
210
180
150
120
90
60
30
0
0
100
200
300
400
500
Average Forward Current - Amperes
90
60
120
180
DC
125 C
75 C
www.microsemi.com
September, 2014 - Rev. 8
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