UFT125, 126 & 127
A
R
G
Baseplate
A=Common Anode
A
B
C
E
F
G
H
N
Q
R
U
V
W
Ultrafast Recovery Modules
Dim. Inches
Min.
B
Millimeters
Min.
Max.
Notes
---
92.20
20.32
17.78
---
16.00
3.30
3.05
12.95
12.45
34.92 BSC
0.25
---
---
---
7.37
6.99
80.01 BSC
---
15.24
8.64
7.92
4.95
4.57
Max.
Q
N
W
Baseplate
Common Cathode
U
C
Baseplate
D=Doubler
F
U
H
V
E
---
3.630
0.700
0.800
---
0.630
0.120
0.130
0.490
0.510
1.375 BSC
0.010
---
---
---
0.275
0.290
3.150 BSC
0.600
---
0.312
0.340
0.180
0.195
1/4-20
Dia.
Dia.
Notes:
Baseplate: Nickel plated
copper; common cathode
Microsemi
Working Peak
Repetitive Peak
Reverse Voltage
Catalog Number Reverse Voltage
UFT12505*
50V
50V
UFT12510*
100V
100V
UFT12515*
150V
150V
UFT12520*UFT12620* 200V
200V
UFT12630* 300V
300V
UFT12640* 400V
400V
UFT12650* 500V
500V
600V
600V
UFT12760*
700V
700V
UFT12770*
800V
800V
UFT12780*
Add Suffix A for Common Anode, D for Doubler
Ultra Fast Recovery
175°C Junction Temperature
V RRM 50 to 800 Volts
120 Amps Current Rating
2 X 60 Amp current rating
ROHS Compliant
Electrical Characteristics
Average forward current per pkg
Average forward current per leg
Case Temperature
Maximum surge current per leg
Max peak forward voltage per leg
Max reverse recovery time per leg
Max peak reverse current per leg
Max peak reverse current per leg
Typical Junction capacitance
UFT125
I F(AV) 120A
I F(AV) 60A
TC
130°C
I FSM
800A
V FM
.975V
t rr
40ns
I RM
I RM
CJ
270pF
UFT126
120A
60A
115°C
700A
1.25V
60ns
2.0ma
30µa
200pF
UFT127
120A
60A
114°C
600A
1.35V
80ns
160pF
Square Wave
Square Wave
R0JC = 0.85°C/W
8.3ms, half sine,T J = 175° C
I FM = 60A, T J = 25°C*
1/2A, 1A, 1/4A, T J = 25°C
V RRM,T J = 125°C*
V RRM,T J = 25°C
V R = 10V,T J = 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
Terminal Torque
Mounting Base Torque - outside holes
Mounting Base Torque - (center hole)
center bolt must be torqued first
Weight
T STG
TJ
R0 JC
R0 JC
R0 CS
-55°C to 175°C
-55°C to 175°C
0.85°C/W Junction to case
0.425°C/W Junction to case
0.08°C/W Case to sink
35-50 inch pounds
30-40 inch pounds
8-10 inch pounds
2.8 ounces (75 grams) typical
www.microsemi.com
January, 2010 - Rev. 3
UFT125
Figure 1
Typical Forward Characteristics - Per Leg
1000
800
600
Junction Capacitance - pF
400
Figure 3
Typical Junction Capacitance - Per Leg
1000
600
400
200
100
80
60
40
20
10
0.1
200
100
80
60
40
Instantaneous Forward Current - Amperes
0.5
1.0
5.0
10
50
100
Reverse Voltage - Volts
Figure 4
Forward Current Derating - Per Leg
175
165
155
145
135
125
115
105
0
10
20
60
30
90
40
120 180
50
60
70
DC
80
90
100
20
10
8.0
6.0
4.0
2.0
1.0
.2
.6
1.0
1.4
1.8
2.2
2.6
3.0
Instantaneous Forward Voltage - Volts
Maximum Allowable Case Temperature - C
Maximum Power Dissipation - Watts
175 C
25 C
Average Forward Current - Amperes
Figure 5
Maximum Forward Power Dissipation - Per Leg
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
90
100
Average Forward Current - Amperes
90
60
180
120
DC
Figure 2
Typical Reverse Characteristics - Per Leg
10
Typical Reverse Current - mA
1.0
.1 175 C
.01
125 C
75 C
25 C
0
40
80
120
160
200
.001
.0001
Reverse Voltage - Volts
www.microsemi.com
January, 2010 - Rev. 3
UFT126
Figure 1
Typical Forward Characteristics - Per Leg
1000
800
600
Junction Capacitance - pF
400
Figure 3
Typical Junction Capacitance - Per Leg
1000
600
400
200
100
80
60
40
20
10
0.1
200
100
80
60
40
Instantaneous Forward Current - Amperes
0.5
1.0
5.0
10
50
100
Reverse Voltage - Volts
Figure 4
Forward Current Derating - Per Leg
175
160
145
130
115
100
85
70
0
10
20
60
30
90
40
120 180
50
60
70
DC
80
90
100
20
10
8.0
6.0
4.0
2.0
1.0
.2
.6
1.0
1.4
1.8
2.2
2.6
3.0
Instantaneous Forward Voltage - Volts
Maximum Allowable Case Temperature - C
Maximum Power Dissipation - Watts
175 C
25 C
Average Forward Current - Amperes
Figure 5
Maximum Forward Power Dissipation - Per Leg
105
90
75
60
45
30
15
0
0
10
20
30
40
50
60
70
80
90
100
Average Forward Current - Amperes
60
90 120
180
DC
Figure 2
Typical Reverse Characteristics - Per Leg
10
Typical Reverse Current - mA
1.0
.1
175 C
125 C
.01
75 C
25 C
0
100
200
300
400
500
.001
.0001
Reverse Voltage - Volts
www.microsemi.com
January, 2010 - Rev. 3
UFT127
Figure 1
Typical Forward Characteristics - Per Leg
1000
800
600
Junction Capacitance - pF
400
Figure 3
Typical Junction Capacitance - Per Leg
1000
600
400
200
100
80
60
40
20
10
0.1
200
100
80
60
40
Instantaneous Forward Current - Amperes
0.5
1.0
5.0
10
50
100
Reverse Voltage - Volts
Figure 4
Forward Current Derating - Per Leg
175
160
145
130
115
100
85
70
0
10
20
60
30
90
40
120 180
50
60
70
DC
80
90
100
20
10
8.0
6.0
4.0
2.0
1.0
.2
.6
1.0
1.4
1.8
2.2
2.6
3.0
Instantaneous Forward Voltage - Volts
Maximum Allowable Case Temperature - C
Maximum Power Dissipation - Watts
175 C
25 C
Average Forward Current - Amperes
Figure 5
Maximum Forward Power Dissipation - Per Leg
105
90
75
60
45
30
15
0
0
10
20
30
40
50
60
70
80
90
100
Average Forward Current - Amperes
60
90 120
180
DC
Figure 2
Typical Reverse Characteristics - Per Leg
10
Typical Reverse Current - mA
1.0
.1
175 C
125 C
.01
75 C
.001
.0001 25 C
0
200
400
600
800
1000
Reverse Voltage - Volts
www.microsemi.com
January, 2010 - Rev. 3
