301U(R) SERIES
STANDARD RECOVERY DIODES
Stud Version
1
300A
Bulletin I2032 rev. A 12/94
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301U(R)
80 to 200
250
Features
Wide current range
High voltage ratings up to 2500V
High surge current capabilities
Stud cathode and stud anode version
Typical Applications
Converters
Power supplies
Machine tool controls
High power drives
Medium traction applications
Parameters
Units
I
F(AV)
330
300
A
@ T
C
120
120
C
I
F(RMS)
520
470
A
I
FSM
@
50Hz
8250
6050
A
@ 60Hz
8640
6335
A
I
2
t
@
50Hz
340
183
KA
2
s
@ 60Hz
311
167
KA
2
s
V
RRM
range
800 to 2000
2500
V
T
J
- 40 to 180
- 40 to 180
C
Major Ratings and Characteristics
case style
DO-205AB (DO-9)
301U(R) Series
2
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Bulletin I2032 rev. A 12/94
Parameter
Units
Conditions
I
F(AV)
Max. average forward current
330
300
A
180 conduction, half sine wave
@ Case temperature
120
120
C
I
F(RMS)
Max. RMS forward current
520
470
A
DC @ T
C
= 115C (08 to 20), T
C
= 102C (25)
I
FSM
Max. peak, one-cycle forward,
8250
6050
t = 10ms
No voltage
non-repetitive surge current
8640
6335
t = 8.3ms
reapplied
6940
5090
t = 10ms
100% V
RRM
7270
5330
t = 8.3ms
reapplied
Sinusoidal half wave,
I
2
t
Maximum I
2
t for fusing
340
183
t = 10ms
No voltage
Initial T
J
= T
J
max.
311
167
t = 8.3ms
reapplied
241
129
t = 10ms
100% V
RRM
220
118
t = 8.3ms
reapplied
I
2
t
Maximum I
2
t for fusing
3400
1830
KA
2
s
t = 0.1 to 10ms, no voltage reapplied
V
F(TO)1
Low level value of threshold
voltage
V
F(TO)2
High level value of threshold
voltage
r
f
1
Low level value of forward
slope resistance
r
f
2
High level value of forward
slope resistance
V
FM
Max. forward voltage drop
1.22
1.46
V
I
pk
= 942A, T
J
= T
J
max, t
p
= 10ms sinusoidal wave
Voltage
V
RRM
, maximum repetitive
V
RSM
, maximum non-
I
RRM
max.
Type number
Code
peak reverse voltage
repetitive peak rev. voltage
@ T
J
= T
J
max.
V
V
mA
80
800
900
120
1200
1300
301U(R)
160
1600
1700
15
200
2000
2100
250
2500
2600
ELECTRICAL SPECIFICATIONS
Voltage Ratings
0.49
0.55
(I >
x I
F(AV)
),T
J
= T
J
max.
0.49
0.59
(16.7% x
x I
F(AV)
< I <
x I
F(AV)
), T
J
= T
J
max.
m
0.84
0.97
(I >
x I
F(AV)
),T
J
= T
J
max.
0.77
0.90
(16.7% x
x I
F(AV)
< I <
x I
F(AV)
), T
J
= T
J
max.
V
KA
2
s
A
Forward Conduction
301U(R)
80 to 200
250
301U(R) Series
3
www.irf.com
Bulletin I2032 rev. A 12/94
R
thJC
Conduction
(The following table shows the increment of thermal resistence R
thJC
when devices operate at different conduction angles than DC)
80 to 200
250
00 to 200
250
180
0.015
0.015
0.011
0.011
120
0.018
0.018
0.019
0.019
90
0.023
0.023
0.025
0.025
K/W
T
J
= T
J
max.
60
0.034
0.034
0.035
0.035
30
0.056
0.056
0.057
0.057
Sinusoidal conduction
Rectangular conduction
Conduction angle
Units
Conditions
T
J
Max. junction operating temperature range
-40 to 180
T
stg
Max. storage temperature range
-40 to 200
R
thJC
Max. thermal resistance, junction to case
0.14
DC operation
R
thCS
Max. thermal resistance, case to heatsink
0.08
Mounting surface, smooth, flat and greased
T
Max. allowed mounting torque +0 -20%
37
Not lubricated threads
28
Lubricated threads
wt
Weight
301U
250 5
303U
152 5
305U
177 5
g
307U
197 5
309U
160 5
Case style
DO-205AB (DO-9)
See Outline Table
Parameter
301U(R)
Units
Conditions
Thermal and Mechanical Specifications
C
K/W
Nm
Ordering Information Table
30
1
U
A
250 P5
1
2
3
4
5
Device Code
1
-
30
= Essential Part Number
2
-
1
= Standard Device
3
= Top Threaded version
5
= Type for rotating application with Top Threaded
version 3/8 16UNC-2A
7
= Type for rotating application with flexible lead
9
= Type for rotating application with Top Threaded
version 3/8 24UNF
3
-
U
= Stud Normal Polarity (Cathode to Stud)
UR
= Stud Reverse Polarity (Anode to Stud)
4
-
A
= Max. Leakage selection I
RRM
= 2mA T
J
= 25C
None = Std. Leakage selection I
RRM
= 10mA T
J
= 25C
5
-
Voltage code: Code x 10=V
RRM
(See Voltage Ratings table)
6
-
P.
= Forward selection
None = Standard Forward selection
6
I
FM
V
FM
V
FM
RANGE
T
J
= 25C
min.
max.
(A)
(V)
(V)
P2 *
1.16
1.25
P3 *
1.26
1.30
P4
1.31
1.40
P5
1.41
1.45
1000
* 2500V not available
301U(R) Series
4
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Bulletin I2032 rev. A 12/94
Outline Table
All dimensions in millimeters (inches)
Case Style
DO-205AB (DO-9)
301U
307U
IR Case Style B60
IR Case Style B61
305U
IR Case Style B41
309U
CERA MIC HOUSING
1
46 (
5
.
75)
21
(
0
.
8
3)
M
AX.
32
(
1
.
2
6
)
19 (0.75) MAX.
28
(
1
.
1
0)
MA
X
.
14
0 (
5
.
5
1)
DIA. 8.7 (0.34) MAX.
24 (
0
.
9
4)
M
AX.
3/4"-16U NF -2A
3.
9 (
0
.
1
5
)
CERAMIC HOUSING
19 (0.75) MAX.
21
(
0
.
8
3
)
M
AX.
54
(
2
.
1
3)
M
A
X
.
11 (
0
.
4
3)
NO
M
.
14
0 (
5
.
5
1
)
14
8 (
5
.
8
3
)
DIA. 8.5 (0.33)
3
2
(
1
.2
6
)
3.
9 (
0
.
1
5
)
12 (
0
.
4
7)
MI
N
.
3/4"-16UNF-2A
CERAMIC HOUSING
3/8"-16UNC-2A
21 (
0
.83)
MA
X
.
59
(
2
.32)
MA
X
.
98 (
3
.
86)
M
A
X
.
6
.
4 (
0
.25)
M
AX.
3
2
(
1
.26)
7 (
0
.
2
8
)
M
A
X
.
3/4"-16UNF-2A
1
6
(
0
.6
3
)
CERAMIC HOUSING
3/8"-24UNF-2A
21 (
0
.83)
M
AX.
60 (
2
.36)
MA
X
.
97 (
3
.82
)
MA
X
.
7.6
(
0
.
3
)
MA
X
.
3
2
(
1
.26)
7
(
0
.
28)
M
A
X
.
3/4"-16UNF-2A
17.5
(
0
.69)
301U(R) Series
5
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Bulletin I2032 rev. A 12/94
Outline Table
Fig. 1 - Current Ratings Characteristics
Fig.2 - Current Ratings Characteristics
110
120
130
140
150
160
170
180
0
50
100
150
200
250
300
350
30
60
90
120
180
Average Forward Current (A)
Conduction Angle
M
a
x
i
m
u
m
A
l
l
o
w
a
b
l
e C
a
s
e
Tem
p
e
r
a
t
u
r
e
(
C
)
R (DC) = 0.14 K/W
301U(R) Series (800V to 2000V)
thJC
100
110
120
130
140
150
160
170
180
0
100
200
300
400
500
600
30
60
90
180
DC
120
Average Forward Current (A)
Conduction Period
M
a
x
i
m
u
m A
l
l
o
w
a
b
l
e
C
a
s
e
T
e
mp
e
r
a
t
u
r
e
(
C
)
R (DC) = 0.14 K/W
thJC
301U(R) Series (800V to 2000V)
303U
IR Case Style B40
CERAMIC HOUSING
16.5 (0. 65) MAX.
59.
7 (
2
.
35)
M
A
X
.
21 (
0
.
83)
M
A
X
.
DIA. 27. 3 (1. 07)
MAX.
9 (
0
.
35)
M
A
X
.
3/8"-24UNF-2A
32
(
1
.
26)
17.
5 (
0
.
69)
3/4"-16UNF -2A
29 (
1
.
1
4
)
M
A
X
.
301U(R) Series
6
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Bulletin I2032 rev. A 12/94
Fig. 5 - Forward Power Loss Characteristics
Fig. 3 - Current Ratings Characteristics
Fig. 4 - Current Ratings Characteristics
110
120
130
140
150
160
170
180
0
50
100
150
200
250
300
350
30
60
90
120
180
Average Forward Current (A)
Conduction Angle
M
a
x
i
mu
m
A
l
l
o
w
a
b
l
e
C
a
s
e
T
e
mp
e
r
a
t
u
r
e
(
C
)
301U(R) Series (2500V)
R (DC) = 0.14 K/W
thJC
90
100
110
120
130
140
150
160
170
180
0
100
200
300
400
500
30
60
90
180
DC
120
Average Forward Current (A)
Conduction Period
M
a
x
i
m
u
m
A
l
l
o
w
a
b
l
e
C
a
s
e
Te
m
p
e
r
a
t
u
r
e
(
C
)
301U(R) Series (2500V)
R (DC) = 0.14 K/W
thJC
Fig. 6 - Forward Power Loss Characteristics
20
40
60
80
100 120 140 160 180
Maximum Allowable Ambient Temperature (C)
R
= 0
.1
K
/W
- D
e
lta
R
th
SA
0.2
K
/W
0.3
K/
W
1.5 K/W
3 K/W
0.7
K/W
0
50
100
150
200
250
300
350
400
0
50
100
150
200
250
300
350
180
120
90
60
30
RMS Limit
Conduction Angle
M
a
x
i
mu
m A
v
e
r
a
g
e
Fo
r
w
a
r
d
P
o
w
e
r
L
o
s
s
(
W
)
Average Forward Current (A)
301U(R) Series
(800V to 2000V)
T = 180C
J
20
40
60
80
100 120 140 160 180
Maximum Allowable Ambient Temperature (C)
R
=
0.
1 K
/W
- D
elt
a R
th
SA
0 .2
K/
W
0.3
K/
W
1.5 K/W
3 K/W
0.7 K
/W
0
50
100
150
200
250
300
350
400
450
500
550
0
100
200
300
400
500
600
DC
180
120
90
60
30
RMS Limit
Conduction Period
M
a
x
i
mu
m A
v
e
r
a
g
e
F
o
r
w
a
r
d
P
o
w
e
r
L
o
s
s
(
W
)
Average Forward Current (A)
301U(R) Series
(800V to 2000V)
T = 180C
J
301U(R) Series
7
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Bulletin I2032 rev. A 12/94
20
40
60
80
100 120 140 160 180
Maximum Allowable Ambient Temperature (C)
R
= 0
.1
K
/W
- D
e
lta
R
th
SA
0.2
K/
W
0 .3
K
/W
1.5 K/W
3 K/W
0.7 K
/W
0
50
100
150
200
250
300
350
400
450
0
50
100
150
200
250
300
180
120
90
60
30
RMS Limit
Conduction Angle
M
a
x
i
mu
m
A
v
e
r
a
g
e
Fo
r
w
a
r
d
P
o
w
e
r
L
o
s
s
(
W
)
Average Forward Current (A)
T = 180C
301U(R) Series (2500V)
J
Fig. 7 - Forward Power Loss Characteristics
Fig. 8 - Forward Power Loss Characteristics
20
40
60
80
100 120 140 160 180
Maximum Allowable Ambient Temperature (C)
R
=
0.
1 K
/ W
- D
elt
a R
th
SA
0.2
K
/ W
0.3
K/W
1.5 K/W
3 K/W
0.7 K/W
0
100
200
300
400
500
600
0
100
200
300
400
500
DC
180
120
90
60
30
RMS Limit
Conduction Period
M
a
x
i
mu
m A
v
e
r
a
g
e
F
o
r
w
a
r
d
P
o
w
e
r
L
o
s
s
(
W
)
Average Forward Current (A)
T = 180C
301U(R) Series (2500V)
J
2000
3000
4000
5000
6000
7000
8000
1
10
100
Number Of Equal Amplitude Half Cycle Current Pulses (N)
P
e
ak
Hal
f
S
i
n
e
W
a
v
e
F
o
r
w
ar
d C
u
r
r
e
nt
(
A
)
Initial T = 180C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At Any Rated Load Condition And With
Rated V Applied Following Surge.
RRM
J
301U(R) Series
(800V to 2000V)
Fig. 9 - Maximum Non-Repetitive Surge Current
Fig. 10 - Maximum Non-Repetitive Surge Current
1000
2000
3000
4000
5000
6000
7000
8000
9000
0.01
0.1
1
Pulse Train Duration (s)
P
e
ak
Hal
f S
i
n
e
W
a
v
e
F
o
r
w
ar
d C
u
r
r
e
n
t
(
A
)
Versus Pulse Train Duration.
Initial T = 180 C
No Voltage Reapplied
Rated V Reapplied
Maximum Non Repetitive Surge Current
RRM
J
301U(R) Series
(800V to 2000V)
301U(R) Series
8
www.irf.com
Bulletin I2032 rev. A 12/94
Fig. 11 - Maximum Non-Repetitive Surge Current
Fig. 12 - Maximum Non-Repetitive Surge Current
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
1
10
100
Number Of Equal Amplitude Half Cycle Current Pulses (N)
P
e
ak
Hal
f
S
i
ne
W
a
v
e
F
o
r
w
ar
d C
u
r
r
e
n
t
(
A
)
Initial T = 180C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At Any Rated Load Condition And With
Rated V Applied Following Surge.
RRM
J
301U(R) Series (2500V)
1000
2000
3000
4000
5000
6000
0.01
0.1
1
Pulse Train Duration (s)
P
e
ak
Hal
f
S
i
n
e
W
a
v
e
F
o
r
w
ar
d C
u
r
r
e
n
t
(
A
)
Versus Pulse Train Duration.
Initial T = 180 C
No Voltage Reapplied
Rated V Reapplied
RRM
J
Maximum Non Repetitive Surge Current
301U(R) Series (2500V)
Fig. 13 - Forward Voltage Drop Characteristics
Fig. 14 - Forward Voltage Drop Characteristics
10
100
1000
10000
0
0.5
1
1.5
2
2.5
3
T = 25C
J
Instantaneous Forward Voltage (V)
I
n
s
t
an
t
a
ne
o
u
s
F
o
r
war
d C
u
r
r
e
n
t
(
A
)
301U(R) Series
(800V to 2000V)
T = 180C
J
10
100
1000
10000
0
0.5
1
1.5
2
2.5
3
3.5
T = 25C
J
Instantaneous Forward Voltage (V)
In
s
t
a
n
t
a
n
e
o
u
s
F
o
rw
a
r
d
C
u
rre
n
t
(
A
)
301U(R) Series (2500V)
T = 180C
J
Fig. 15 - Thermal Impedance Z
thJC
Characteristic
0.001
0.01
0.1
1
0.001
0.01
0.1
1
10
Square Wave Pulse Duration (s)
th
J
C
Tr
a
n
s
i
e
n
t
Th
e
r
m
a
l I
m
p
e
d
a
n
c
e
Z
(
K
/
W
)
301U(R) Series
Steady State Value:
R = 0.14 K/W
(DC Operation)
thJ C
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