Vishay High Power Products
Standard Recovery Diodes
(Stud Version), 300 A
FEATURES
• Wide current range
• High voltage rating up to 2500 V
• High surge current capabilities
• Stud cathode and stud anode version
301U(R) Series
RoHS
COMPLIANT
DO-205AB (DO-9)
PRODUCT SUMMARY
I
F(AV)
300 A
MAJOR RATINGS AND CHARACTERISTICS
PARAMETER TEST CONDITIONS
I
F(AV)
I
F(RMS)
I
FSM
2
I
t
V
RRM
T
J
T
C
50 Hz 8250 6050
60 Hz 8640 6335
50 Hz 340 183
60 Hz 311 167
Range 1600 to 2000 2500 V
• High resistance to acceleration
• RoHS compliant
• Designed and qualified for industrial level
TYPICAL APPLICATIONS
• Converters
• Power supplies
• Machine tool controls
• High power drives
• Medium traction applications
301U(R)
160 TO 200 250
330 300 A
120 120 °C
520 470 A
- 40 to 180 - 40 to 180 °C
UNITS
kA2s
A
ELECTRICAL SPECIFICATIONS
VOLTAGE RATINGS
V
TYPE NUMBER
301U(R)
VOLTAGE
CODE
160 1600 1700
250 2500 2600
RRM
PEAK REVERSE VOLTAGE
, MAXIMUM REPETITIVE
V
V
, MAXIMUM NON-REPETITIVE
RSM
PEAK REVERSE VOLTAGE
V
I
MAXIMUM
RRM
AT T
= TJ MAXIMUM
J
mA
15200 2000 2100
301U(R) Series
Vishay High Power Products
Standard Recovery Diodes
(Stud Version), 300 A
FORWARD CONDUCTION
PARAMETER SYMBOL TEST CONDITIONS
Maximum average forward current
at case temperature
Maximum RMS forward current I
Maximum peak, one cycle forward,
non-repetitive surge current
2
Maximum I
Maximum I
t for fusing I2t
2
√t for fusing I2√t t = 0.1 to 10 ms, no voltage reapplied 3400 1830 kA2√s
Low level value of threshold voltage V
High level value of threshold voltage V
Low level value of forward
slope resistance
High level value of forward
slope resistance
Maximum forward voltage drop V
I
F(AV)
F(RMS)
I
FSM
F(TO)1
F(TO)2
r
f1
r
f2
FM
180° conduction, half sine wave
DC at TC = 115 °C (up to 2000 V), TC = 102 °C (2500 V) 520 470 A
t = 10 ms
t = 8.3 ms 8640 6335
t = 10 ms
t = 8.3 ms 7270 5330
t = 10 ms
t = 8.3 ms 311 167
t = 10 ms
t = 8.3 ms 220 118
(16.7 % x π x I
(I > π x I
(16.7 % x π x I
(I > π x I
No voltage
reapplied
100 % V
reapplied
No voltage
RRM
Sinusoidal half wave,
initial T
reapplied
100 % V
RRM
reapplied
< I < π x I
F(AV)
), TJ = TJ maximum 0.84 0.97
F(AV)
< I < π x I
F(AV)
), TJ = TJ maximum 0.49 0.55
F(AV)
F(AV)
F(AV)
Ipk = 942 A, TJ = TJ maximum, tp = 10 ms sinusoidal wave 1.22 1.46 V
301U(R)
160 TO 200 250
330 300 A
120 120 °C
8250 6050
6940 5090
= TJ maximum
J
340 183
241 129
), TJ = TJ maximum 0.77 0.90
), TJ = TJ maximum 0.49 0.59
UNITS
A
2
kA
V
mΩ
s
THERMAL AND MECHANICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum junction operating
temperature range
Maximum storage
temperature range
Maximum thermal resistance,
junction to case
Maximum thermal resistance,
case to heatsink
Maximum allowed mounting torque
+ 0 - 20 %
301U 250 ± 5
303U 152 ± 5
Weight
305U 177 ± 5
307U 197 ± 5
309U 160 ± 5
Case style See dimensions - link at the end of datasheet DO-205AB (DO-9)
T
J
- 40 to 180
°C
T
Stg
R
thJC
DC operation 0.14
- 40 to 200
K/W
R
thCS
Mounting surface, smooth, flat and greased 0.08
Not lubricated threads 37
Lubricated threads 28
N · m
g
301U(R) Series
Standard Recovery Diodes
(Stud Version), 300 A
ΔR
CONDUCTION ANGLE
Note
• The table above shows the increment of thermal resistance R
CONDUCTION
thJC
SINUSOIDAL CONDUCTION RECTANGULAR CONDUCTION
80 TO 200 250 80 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
60° 0.034 0.034 0.035 0.035
30° 0.056 0.056 0.057 0.057
180
170
160
150
301U(R) Serie s(1600V t o 2000V )
R (DC) = 0.14 K/W
thJC
Conduction Angle
Vishay High Power Products
TEST CONDITIONS UNITS
= TJ maximum K/W
T
J
when devices operate at different conduction angles than DC
thJC
180
170
160
150
301U(R) Series (2500V)
R ( DC) = 0.14 K/ W
thJC
Conduc tion Angle
140
130
120
110
Maximum Allowab le Case Temperature (°C)
0 50 100 150 200 250 300 350
Average Forward Current (A)
30°
60°
Fig. 1 - Current Ratings Characteristics
180
170
160
150
140
130
120
110
100
Maximum Allowable Case Temperature (°C)
0 100 200 300 400 500 600
301U(R) Serie s( 1600V t o 2000V )
R (DC) = 0.14 K/ W
thJC
Conduc tion Period
30°
60°
90°
120°
180°
Average Forward Current (A)
Fig. 2 - Current Ratings Characteristics
90°
DC
120°
180°
140
130
120
110
Maximum Allowa ble Ca se Temperature (°C)
0 50 100 150 200 250 300 350
30°
60°
90°
120°
Average Forward Current (A)
Fig. 3 - Current Ratings Characteristics
180
170
160
150
140
130
120
110
100
90
Maximum Allow ab le C a se Temperature (°C)
0100200300400500
Average Forward Current (A)
301U(R) Serie s (2500V)
R ( DC) = 0.14 K/ W
thJC
30°
60°
90°
120°
Conduct ion Pe riod
180°
Fig. 4 - Current Ratings Characteristics
180°
DC
301U(R) Series
Vishay High Power Products
400
350
300
250
200
150
100
50
0
Maximum Average Forward Power Loss (W)
0 50 100 150 200 250 300 350
550
500
450
400
350
300
250
RM S Li m i t
200
150
100
50
0
M a xi m u m A v e ra g e Fo r w a rd P ow e r Lo ss ( W)
0
180°
120°
90°
60°
30°
RM S Li m it
Average Forward Current (A)
DC
180°
120°
90°
60°
30°
100 200 3 00 400 500 600
Average Forward Current (A)
Standard Recovery Diodes
(Stud Version), 300 A
R
t
h
0.
0
.
3
K
0
.
7
K
Cond uction Ang le
1
.
5
301U(R) Series
(1600V to 2000V)
T = 180°C
J
K
3
K
/
W
20 40 60 80 100 120 140 160 180
Maximum Allowable Ambient Temperature (°C)
Fig. 5 - Forward Power Loss Characteristics
R
0
.
2
0
.
3
K
Cond uction Period
301U(R) Serie s
(1 600V t o 2000V)
T = 18 0 °C
J
0
.
7
K
1
.
5
K
3
K
/
W
20 40 60 80 100 120 140 160 180
Maximum Allow able Ambient Temperature (°C)
Fig. 6 - Forward Power Loss Characteristics
S
2
A
K/ W
/
W
/
W
/
W
t
h
S
A
K
/
W
/
W
/
W
/
W
=
0
.
1
K
/
W
De
l
t
a
=
0
.
1
K
/
W
D
e
l
t
a
R
R
450
400
350
300
250
180°
120°
90°
60°
30°
RM S Li m i t
200
150
100
50
0
Maximum Average Forward Power Loss (W)
0 50 100 150 200 250 300
Cond uc tion Angle
301U(R) Serie s (2500V)
T = 180°C
J
Ave rag e Forwa rd C urrent (A)
Fig. 7 - Forward Power Loss Characteristics
R
t
h
S
A
=
0
.
0
.
3
0
.
7
1
.
5
3
K
/
0
2
K
K
K
W
.
1
K
/
W
/W
/
K
/
W
W
/
W
D
e
l
t
a
R
20 40 60 80 100 120 140 160 180
Maximum Allowable Ambient Temperature (°C)
301U(R) Series
Standard Recovery Diodes
(Stud Version), 300 A
600
500
400
300
200
100
0
Maximum Average Forward Power Loss (W)
8000
At Any Rated Load Condition And With
Rated V Applied Following Surge.
7000
RRM
6000
5000
4000
3000
301U(R) Serie s
(1600V to 2000V)
Pe a k Ha lf Sin e Wave Forw a rd Current (A)
2000
110100
Number Of Equal Amplitud e Half Cycle Current Pulses (N)
Fig. 9 - Maximum Non-Repetitive Surge Current
DC
180°
120°
90°
60°
30°
RM S Li m i t
Conduc tion Period
301U(R) Series (2500V)
T = 180° C
J
0
100 200 300 400 500
Average Forward Current (A)
Fig. 8 - Forward Power Loss Characteristics
Init ial T = 180°C
J
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
Vishay High Power Products
R
t
hS
A
=
0
.
1
K
/
W
-
0
.
0
.
3
0
.
7
1
.
5
3
K
20 40 60 80 100 120 140 160 180
Maximum Allowable Ambient Temperature (°C)
D
2
K
K
K
/
e
K
W
l
ta
/
W
/
W
/
W
/
W
R
6000
At Any Ra ted Load Cond it ion And With
5500
Ra ted V Ap plied Follow ing Surg e.
RRM
5000
4500
4000
3500
3000
2500
2000
301U(R) Series (2500V )
Pe a k Ha lf Sine Wa ve Forw ard Cu rre nt ( A)
1500
110100
Number Of Equa l Amp litude Half Cyc le Current Pulses (N)
Fig. 11 - Maximum Non-Repetitive Surge Current
Init ial T = 180°C
J
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
9000
Maximum Non Repetitive Surge Current
8000
7000
6000
Versus Pulse Train Duration.
Init ial T = 180 °C
No Voltage Reapplied
Ra ted V Rea pplied
J
RRM
5000
4000
3000
301U(R) Series
2000
Pe a k Ha lf Sin e Wa ve Fo rwa rd Curre nt (A)
(1600V to 2000V)
1000
0.01 0.1 1
Pulse Tra in Du r a t io n (s)
Fig. 10 - Maximum Non-Repetitive Surge Current
6000
Maximum Non Repetitive Surge Current
Versus Pulse Train Dura tion.
Init ial T = 180 °C
5000
No Volt ag e Reapp lie d
Ra t e d V Re a p p li e d
J
RRM
4000
3000
2000
301U(R) Serie s (2500V)
Pe a k Ha l f Sine Wave Forward Current (A)
1000
0.01 0.1 1
Pulse Train Durat ion (s)
Fig. 12 - Maximum Non-Repetitive Surge Current
301U(R) Series
Vishay High Power Products
10000
T = 25 ° C
J
T = 18 0 °C
1000
100
301U(R) Series
Insta nt a ne o us Fo rwa rd Curre n t (A)
10
00.511.522.53
Instanta neous Forward Voltage (V)
(1 600V to 2000V)
Fig. 13 - Forward Voltage Drop Characteristics Fig. 14 - Forward Voltage Drop Characteristics
1
thJC
Steady State Value:
R = 0.14 K/W
0.1
(DC Operation)
J
thJC
Standard Recovery Diodes
(Stud Version), 300 A
10000
1000
Instantaneous Forward Current (A)
T = 2 5° C
J
T = 18 0 °C
J
100
301U(R) Serie s (2500V)
10
00.511.522.533.5
Instantaneous Forward Voltage (V)
0.01
301U(R) Se rie s
Tra n si e n t Th e r m a l I m p e d a n c e Z ( K/ W )
0.001
0.001 0.01 0.1 1 10
Sq u a r e W a v e P u l se Du r a t i o n ( s)
Fig. 15 - Thermal Impedance Z
Characteristic
thJC
301U(R) Series
Standard Recovery Diodes
ORDERING INFORMATION TABLE
Device code
Vishay High Power Products
(Stud Version), 300 A
30 1 U A 250
51324
1
- 30 = Essential part number
- 1 = Standard device
2
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)
- A = Maximum leakage selection I
4
- Voltage code x 10 = V
5
(see Voltage Ratings table)
RRM
= 2 mA TJ = 25 °C
RRM
Outline Dimensions
Vishay High Power Products
DO-205AB (DO-9), B-60, B-61,
B-41 and B-40 for 301U(R) Series
DIMENSIONS FOR 301U(R) SERIES - DO-205AB (DO-9) in millimeters (inches)
Ceramic housing
140 (5.51)
146 (5.75)
28 (1.10)
21(0.83)
19 (0.75) MAX.
24 (0.94)
MAX.
MAX.
MAX.
3/4"-16UNF-2A
for metric device: M16 x 1.5
contact factory
Ø 8.7 (0.34) MAX.
32 (1.26)
3.9 (0.15)
Outline Dimensions
Vishay High Power Products
DO-205AB (DO-9), B-60, B-61,
B-41 and B-40 for 301U(R) Series
DIMENSIONS FOR 307U(R) SERIES - B-60 in millimeters (inches)
Ceramic housing
19 (0.75) MAX.
11 (0.43)
NOM.
12 (0.47)
MIN.
140 (5.51)
148 (5.83)
54 (2.13)
MAX.
Ø 8.5 (0.33)
21 (0.83)
MAX.
32 (1.26)
3/4"-16UNF-2A
3.9 (0.15)
Outline Dimensions
DO-205AB (DO-9), B-60, B-61,
B-41 and B-40 for 301U(R) Series
DIMENSIONS FOR 305U(R) SERIES - B-61 in millimeters (inches)
Ceramic housing
98 (3.86)
MAX.
59 (2.32)
21 (0.83)
3/8"-16UNC-2A
6.4 (0.25)
MAX.
MAX.
7 (0.28) MAX.
MAX.
3/4"-16UNF-2A
Vishay High Power Products
32 (1.26)
16 (0.63)
DIMENSIONS FOR 309U(R) SERIES - B-41 in millimeters (inches)
Ceramic housing
97 (3.82)
MAX.
60 (2.36)
21 (0.83)
3/8"-24UNF-2A
7.6 (0.3) MAX.
MAX.
7 (0.28) MAX.
MAX.
3/4"-16UNF-2A
32 (1.26)
17.5 (0.69)
Outline Dimensions
Vishay High Power Products
DO-205AB (DO-9), B-60, B-61,
B-41 and B-40 for 301U(R) Series
DIMENSIONS FOR 303U(R) SERIES - B-40 in millimeters (inches)
Ceramic housing
16.5 (0.65)
MAX.
59.7 (2.35)
MAX.
29 (1.14)
MAX.
21 (0.83)
MAX.
3/8"-24UNF-2A
Ø 27.3 (1.07) MAX.
9 (0.35) MAX.
3/4"-16UNF-2A
32 (1.26)
17.5 (0.69)
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
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