VS-300U(R) Series
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Standard Recovery Diodes,
(Stud Version), 300 A
FEATURES
• Alloy diode
• Popular series for rough service
• Stud cathode and stud anode version
• Designed and qualified for industrial level
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
TYPICAL APPLICATIONS
• Welders
• Power supplies
• Motor controls
• Battery chargers
• General industrial current rectification
ELECTRICAL SPECIFICATIONS
PRIMARY CHARACTERISTICS
IF(AV) 300 A
Package DO-9 (DO-205AB)
Circuit configuration Single
DO-9 (DO-205AB)
MAJOR RATINGS AND CHARACTERISTICS
PARAMETER TEST CONDITIONS VALUES UNITS
IF(AV)
300 A
TC150 °C
IFSM
50 Hz 6550 A
60 Hz 6850
I2t50 Hz 214 kA2s
60 Hz 195
VRRM Range 400 V
TJ-65 to +200 °C
VOLTAGE RATINGS
TYPE NUMBER VOLTAGE
CODE
VRRM,
MAXIMUM REPETITIVE PEAK
REVERSE VOLTAGE
V
VRSM,
MAXIMUM NON-REPETITIVE PEAK
REVERSE VOLTAGE
V
IRRM MAXIMUM
AT TJ = 175 °C
mA
VS-300U(R)..
10 100 200
40
20 200 300
30 300 400
40 400 500
60 600 700
VS-300U(R) Series
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Revision: 11-Jan-18 2Document Number: 93508
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Note
(1) 302U-A uses case style B-26
Note
• The table above shows the increment of thermal resistance RthJC when devices operate at different conduction angles than DC
FORWARD CONDUCTION
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum average forward current
at case temperature IF(AV) 180° conduction, half sine wave 300 A
130 °C
Maximum peak, one cycle forward,
non-repetitive surge current IFSM
t = 10 ms No voltage
reapplied
Sinusoidal half wave,
initial TJ = TJ maximum
6550
A
t = 8.3 ms 6850
t = 10 ms 100 % VRRM
reapplied
5500
t = 8.3 ms 5750
Maximum I2t for fusing I2t
t = 10 ms No voltage
reapplied
214
kA2s
t = 8.3 ms 195
t = 10 ms 100 % VRRM
reapplied
151
t = 8.3 ms 138
Maximum I2t for fusing I2t t = 0.1 to 10 ms, no voltage reapplied 2140 kA2s
Maximum value of threshold voltage VF(TO)
TJ = 200 °C
0.610 V
Maximum value of forward
slope resistance rf0.751 m
Maximum forward voltage drop VFM Ipk = 942 A, TJ = 25 °C 1.40 V
THERMAL AND MECHANICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum junction operating and
storage temperature range TJ, TStg -65 to +200 °C
Maximum thermal resistance,
junction to case RthJC DC operation 0.18
K/W
Maximum thermal resistance,
case to heatsink RthCS Mounting surface, smooth, flat and greased 0.08
Maximum allowed mounting torque
+0 -20 %
Not lubricated threads 37 Nm
Lubricated threads 28
Approximate weight 250 g
Case style (JEDEC®) see dimensions - link at the end of datasheet DO-9 (DO-205AB) (1)
RthJC CONDUCTION
CONDUCTION ANGLE SINUSOIDAL CONDUCTION RECTANGULAR CONDUCTION TEST CONDITIONS UNITS
180° 0.020 0.015
TJ = TJ maximum K/W
120° 0.024 0.025
90° 0.031 0.034
60° 0.045 0.047
30° 0.077 0.077
VS-300U(R) Series
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Revision: 11-Jan-18 3Document Number: 93508
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Fig. 1 - Current Ratings Characteristics Fig. 2 - Current Ratings Characteristics
Fig. 3 - Forward Power Loss Characteristics
Fig. 4 - Forward Power Loss Characteristics
Average Forward Current (A)
Maximum Allowable Case Temperature (°C)
120
140
160
180
200
0 50 100 150 200 250 300 350
30° 60° 90° 120° 180°
Conduction Angle
300U40AM20
RthJC (DC) = 0.18 K/W
Average Forward Current (A)
110
120
130
140
150
160
170
180
190
200
0 100 200 300 400 500
DC
30° 60°
90°
120° 180°
Conduction Period
300U40AM20
RthJC (DC) = 0.18 K/W
Maximum Allowable Case Temperature (°C)
Average Forward Current (A)
Maximum Average Forward Power Loss (W)
Maximum Allowable Ambient Temperature (°C)
0
50
100
150
200
250
300
350
400
0
RMS Limit
180°
120°
90°
60°
30°
Conduction Angle
300U40AM20
Tj = 200°C
25 50 75 100 125 150 175 200
3 K/W
1.5 K/W
1 K/W
0.7 K/W
0.5 K/W
0.4 K/W
0.3 K/W
0.2 K/W
RthSA = 0.1 K/W - Delta R
0 50 100 150 200 250 300 350
Average Forward Current (A)
Maximum Average Forward Power Loss (W)
Maximum Allowable Ambient Temperature (°C)
50 75 100 125 150 175 200
3 K/W
1.5 K/W
1 K/W
0.7 K/W
0.3 K/W
0.2 K/W
0.5 K/W
RthSA = 0.1 K/W - ΔR
0
50
100
150
200
250
300
350
400
450
500
0 100 200 300 400 500
DC
180°
120°
90°
60°
30°
RMS Limit
Conduction Period
Tj = 200°C
300U40AM20
VS-300U(R) Series
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Revision: 11-Jan-18 4Document Number: 93508
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Fig. 5 - Maximum Non-Repetitive Surge Current Fig. 6 - Maximum Non-Repetitive Surge Current
Fig. 7 - Forward Voltage Drop Characteristics
Fig. 8 - Thermal Impedance ZthJC Characteristic
Peak Half Sine Wave Forward Current (A)
Number Of Equal Amplitude Half Cycle Current Pulses (N)
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
11010
0
Initial Tj = 200°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At Any Rated Load Condition And With
Rated Vrrm Applied Following Surge.
300U40AM20
Pulse Train Duration (s)
Peak Half Sine Wave Forward Current (A)
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
0.01 0.1 1
Maximum Non Repetitive Surge Current
Initial Tj = 200°C
No Voltage Reapplied
Rated Vrrm Reapplied
Versus Pulse Train Duration.
300U40AM20
Instantaneous Forward Voltage (V)
Instantaneous Forward Current (A)
10
100
1000
10000
0 0.5 1 1.5 2 2.5 3
Tj = 25°C
Tj = 200°C
300U40AM20
Square Wave Pulse Duration (s)
Transient Thermal Impedance Z thJC (K/W)
0.001
0.01
0.1
1
0.0001 0.001 0.01 0.1 1 10
Steady State Value
RthJC = 0.18 K/W
(DC Operation)
300U40AM20
VS-300U(R) Series
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Revision: 11-Jan-18 5Document Number: 93508
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ORDERING INFORMATION TABLE
LINKS TO RELATED DOCUMENTS
Dimensions www.vishay.com/doc?95340
Device code
5 761 32 4
30VS- 0 U 40 A M20
2
- 0 = standard device
2 = 300U top threaded version
- • U = stud normal polarity (cathode to stud)
• UR = stud reverse polarity (anode to stud)
4
- Voltage code x 10 = V
RRM
(see Voltage Ratings table)
5
6- A = essential part number
-30 = essential part number
1
- Vishay Semiconductors product
3
7- None = stud base DO-9 (DO-205AB) 3/4" 16UNF-2A
M20 = Metric device M20 x 1.5 (available with standard device only)
Outline Dimensions
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Revision: 15-Mar-17 1Document Number: 95340
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DO-9 (DO-205AB) and B-26 for 300U(R) Series
DIMENSIONS FOR 300U(R)-A SERIES - DO-9 (DO-205AB) in millimeters (inches)
DIMENSIONS FOR 302U(R)-A SERIES - B-26 in millimeters (inches)
19.18 (0.755)
Max.
Ø 8.89 (0.350)
Ø 8.38 (0.330)
11.51 (0.453)
10.74 (0.423)
3.18 (0.125)
Max.
Unthreaded
portion Ø 19.02 (0.749)
Max.
31.75 (1.250)
30.94 (1.218) Across ats
9.27 (0.365)
7.87 (0.310)
Ø 27.94 (1.10)
Max.
4.32 (0.170)
Max.
13.46 (0.530)
11.94 (0.470)
149.9 (5.90)
134.6 (5.30)
53.34 (2.10)
Max.
21.03 (0.83)
20.14 (0.79)
3/4" 16UNF-2A
for metric device: M20 x 1.5
contact factory
Ø 9.50 (0.374)
Max.
16.51 (0.65)
14.99 (0.59) 18.29 (0.72)
16.76 (0.66)
Ø 27.94 (1.10)
Max.
9.27 (0.365)
7.87 (0.310)
31.75 (1.250) Max.
Across ats
3.18 (0.125)
Max.
Ø 19.02 (0.749)
Max.
3/8"-24UNF-2A
58.67 (2.31)
55.63 (2.19)
28.45 (1.12)
Max.
21.03 (0.828)
20.14 (0.793)
Across ats
3/4" 16UNF-2A
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