ROHS Compliant
R(OV) 2 Amps
FSM 1000 Amps
F(AV) 60 Amps
F(AV) 120 Amps
CPT12035 - CPT12050
*Pulse test: Pulse width 300µsec, Duty cycle 2%
Thermal and Mechanical Characteristics
copper
Baseplate: Nickel plated
D=Doubler
Baseplate
Common Cathode
Baseplate
A=Common Anode
Baseplate
Electrical Characteristics
Reverse Voltage
Repetitive Peak
Schottky PowerMod
*Add Suffix A for Common Anode, D for Doubler
Mounting Base Torque (outside holes)
Mounting Base Torque (center hole)
center bolt must be torqued first
Weight
current per leg
per leg
per leg
per leg
per leg
per leg
per leg
per pkg
Max thermal resistance per leg
Max thermal resistance per pkg
Max peak reverse current
Typical thermal resistance (greased)
Terminal Torque
Typical junction capacitance per leg
Storage temp range
Operation junction temp range
Maximum repetitive reverse
Average forward current
Maximum surge current
Max peak forward voltage
Max peak forward voltage
Max peak reverse current
Average forward current
RM 3 mA
R
0
R
0
CS
JC
STG
T
J
R
0
T
JC
J 2700 pF
C
l
RM 40 mA
FM .63 Volts
FM .80 Volts
V
I
I
V
I
l
l
Catalog Number
H
Q
Working Peak
Reverse Voltage
40V
45V
50V
35V
CPT12040*
CPT12045*
CPT12050*
CPT12035*
Microsemi
V
U
N
W
F
E
50V
45V
40V
35V
Notes:
U
C
B
G
R
A
8-10 inch pounds
30-40 inch pounds
2.8 ounces (75 grams) typical
35-50 inch pounds
-55° C to 175° C
-55° C to 175° C
8.3ms, half sine, J = 175°C
RRM, J = 125°C*
FM = 120A: J = 25°C*
FM = 120A: J = 175°C
R = 5.0V, J = 25°C
0.08° C/W
0.43° C/W
0.85° C/W
V
T
C = 140°C
T
I
V
V
I
T
T
C = 140°C
T
Junction to case
Junction to case
Case to sink
R
T
T
T
R
Dia.
Dia.
1/4-20
Notes
0.800
0.130
0.510
---
3.150 BSC
---
0.630
---
0.290
0.340
0.195
Schottky Barrier Rectifier
Guard Ring Protection
120 Amperes/35 to 50 Volts
Reverse Energy Tested
175°C Junction Temperature
U
0.600
0.312
0.180
V
W
---
0.275
Q
R
N
1.375 BSC
0.010
0.490
G
H
F
0.700
---
0.120
C
E
B
34.92 BSC
80.01 BSC
15.24
---
7.92
4.57
6.99
17.78
---
3.05
12.45
0.25
---
---
7.37
8.64
4.95
20.32
3.30
12.95
16.00
---
3.630
Max.
Dim. Inches
---
Min.
A
Millimeters
---
Min.
92.20
Max.
Industry
Part Number
MBR12035CT
MBR12040CT
MBR12045CT
,Square wave, 0JC = 0.43°C/W
f = 1 KHZ, 25° C, 1µsec square wave
RRM, J = 25°C
,Square wave, 0JC = 0.85°C/W
January, 2010 - Rev. 6
www.microsemi.com
CPT12035 - CPT12050
Instantaneous Forward Current - Amperes
Typical Reverse Current - mA
Reverse Voltage - Volts
20
.01
0.1
25 C
0
75 C
10
30 40 50
0.8
Instantaneous Forward Voltage - Volts
Typical Reverse Characteristics - Per Leg
1.0
10
125 C
100
1000
175 C
1.0
Figure 2
0.2
2.0
0.60.4
1.21.0 1.4 1.6
400
10
4.0
6.0
8.0
20
100
80
40
60
200
175 C
25 C
Typical Forward Characteristics - Per Leg
600
800
1000
Figure 1
Maximum Allowable Case Temperature - C
140
20
Maximum Power Dissipation - Watts
30
Average Forward Current - Amperes
0
0
10
10
20 6040 50 70 80 90
Maximum Forward Power Dissipation - Per Leg
Average Forward Current - Amperes
30
Figure 5
50
30
40
60
70
60
0
110
120
130
10
20
60
180
120
90
DC
6040 50
120
90
180
70 80 90
DC
100
100
2000
Junction Capacitance - pF
Reverse Voltage - Volts
Forward Current Derating - Per Leg
Figure 4
170
150
160
180
0.1
100
200
600
400
1000
0.5
1.0
5.0
10
50
Typical Junction Capacitance - Per Leg
Figure 3
4000
10000
6000
100
January, 2010 - Rev. 6
www.microsemi.com
