Reverse Energy Tested
ROHS Compliant
Microsemi
Catalog Number
CPT20040*
CPT20045*
CPT20050*
50V
45V
40V
Reverse Voltage
Repetitive Peak
Schottky Barrier Rectifier
Guard Ring Protection
200 Amperes/35 to 50 Volts
Common Cathode Center Tap
Working Peak
Reverse Voltage
40V
45V
50V
CPT20035*
35V35V
1/4-20
---
---
Notes
Max.
Min.
Max.
Min.
3.150 BSC 80.01 BSC
--- ---
1.375 BSC
34.92 BSC
Dia.
Dia.
0.195
0.340
---
0.290
---
0.510
0.130
0.630
0.800
3.630
0.180
0.312
0.600
0.275
0.010
0.490
0.120
---
0.700
---
4.95
8.64
---
7.37
---
12.95
3.30
16.00
20.32
92.20
4.57
7.92
15.24
6.99
0.25
12.45
3.05
---
17.78
---
W
V
U
R
Q
N
H
G
F
E
C
B
A
Millimeters
Dim. Inches
T
Case to sink
Junction to case
R
0
0
R
T
Thermal and Mechanical Characteristics
Schottky PowerMod
175°C Junction Temperature
T
T
*Pulse test: Pulse width 300µsec, Duty cycle 2%
l
Average forward current
T
T
T
T
I
I
V
V
V
R = 5.0V, J = 25°C
T
Typical junction capacitance per leg
Max peak reverse current
Max peak reverse current
Max peak forward voltage
Max peak forward voltage
Maximum surge current
Average forward current
l
l
F(AV) 200 Amps
F(AV) 100 Amps
FSM 2000 Amps
I
R(OV) 2 Amps
FM 0.80 Volts
V
FM 0.60 Volts
V
RM 75mA
I
RM 4.0mA
I
J 4600pF
C
C = 143°C,
f = 1 KHZ, 25°C, 1 µsec square wave
FM = 200A: J = 25°C*
FM = 200A: J = 175°C*
RRM, J = 125°C*
8.3ms, half sine, J = 175°C
per pkg
per leg
per leg
per leg
per leg
per leg
per leg
Maximum repetitive reverse
current per leg
CPT20035 - CPT20050
*Add Suffix A for Common Anode, D for Doubler
Electrical Characteristics
Storage temp range
Operation junction temp range
Max thermal resistance per leg
Weight
Terminal Torque
Mounting Base Torque (outside holes)
center bolt must be torqued first
2.8 ounces (75 grams) typical
JC
CS
0.5°C/W
0.08C/W
-55°C to 175°C
-55°C to 175°C
STG
J
R
R
RRM, J = 25°C
Square wave, 0JC = 0.25°C/W
Mounting Base Torque (center hole)
Typical thermal resistance (greased)
35-50 inch pounds
30-40 inch pounds
8-10 inch pounds
copper
Baseplate: Nickel plated
Notes:
D=Doubler
Baseplate
A=Common Anode
Baseplate
Common Cathode
Baseplate
W
NQ
H
C
E
B
V
U
F
U
G
R
A
Max thermal resistance per pkg JC
R
0
Junction to case
0.25°C/W
MBRP20045CT
Industry
Part Number
201CNQ045
201CNQ040
201CNQ035
T
Square wave, 0JC = 0.5°C/W
C = 143°C,
January, 2010 - Rev. 4
www.microsemi.com
Average Forward Current - Amperes
Maximum Allowable Case Temperature - C
150120
9060300
175
165
155
145
135
125
115
105
Figure 2
Forward Current Derating - Per Leg
50
100
5.0
10
1.0
0.5
100,000
60,000
40,000
20,000
10,000
6000
4000
2000
1000
Typical Junction Capacitance - Per Leg
Figure 3
0.1
Junction Capacitance - pF
Reverse Voltage - Volts
Maximum Forward Power Dissipation - Per Leg
Figure 5
0
30
45
60
75
90
105
0 30 60 90
120 150
Maximum Power Dissipation - Watts
Average Forward Current - Amperes
15
Figure 1
0
0.2 0.4 0.6 0.8
1.0 1.2 1.4
1.0
2.0
4.0
6.0
8.0
10
20
40
60
80
100
200
400
600
800
1000
Instantaneous Forward Current - Amperes
Instantaneous Forward Voltage - Volts
.01
Figure 4
0.1
1.0
10
100
1000
175 C
25 C
90
120 180
90
120
180
CPT20035 - CPT20050
Typical Forward Characteristics - Per Leg
Typical Reverse Current - mA
25 C
75 C
125 C
175 C
Reverse Voltage - Volts
Typical Reverse Characteristics - Per Leg
0
10
20 30 40 50
60
DC
60
DC
January, 2010 - Rev. 4
www.microsemi.com
