Features
Alloy diode
Popular series for rough service
Stud cathode and stud anode version
Typical Applications
Welders
Power supplies
Motor controls
Battery chargers
General industrial current rectification
IF(AV) 300 A
@ TC150 °C
IFSM @ 50Hz 6550 A
@ 60Hz 6850 A
I2t@
50Hz 214 KA2s
@ 60Hz 195 KA2s
VRRM range 100 to 600 V
TJ-65 to 200 °C
Parameters 300U Units
Major Ratings and Characteristics
case style
DO-205AB (DO-9)
1
STANDARD RECOVERY DIODES Stud Version
300U(R) SERIES
300A
Bulletin I2039 rev. C 03/03
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300U(R) Series
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Bulletin I2039 rev. C 03/03
Voltage VRRM , maximum repetitive VRSM , maximum non- IRRM max.
Type number Code peak reverse voltage repetitive peak rev. voltage TJ = 175°C
VVmA
10 100 200
20 200 300
300U 30 300 40 0 40
40 400 500
60 600 700
TJMax. junction operating temperature range -65 to 200
Tstg Max. storage temperature range -65 to 200
RthJC Max. thermal resistance, junction to case 0.18 DC operation
RthCS 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 Approximate weight 250 g
Case style DO-205AB (DO-9)** JEDEC (See Outline Table)
Parameter 300U(R) Units Conditions
Thermal and Mechanical Specifications
°C
K/W
Nm
** 302U-A uses IR case style B-26
ELECTRICAL SPECIFICATIONS
Voltage Ratings
IF(AV) Max. average forward current 300 A 180° conduction, half sine wave
@ Case temperature 130 °C
IFSM Max. peak, one-cycle forward, 6550 t = 10ms No voltage
non-repetitive surge current 6850 t = 8.3ms reapplied
5500 t = 10ms 100% VRRM
5750 t = 8.3ms reapplied Sinusoidal half wave,
I2t Maximum I2t for fusing 214 t = 10ms No voltage Initial TJ = TJ max.
195 t = 8.3ms reapplied
151 t = 10ms 100% VRRM
138 t = 8.3ms reapplied
I2√t Maximum I2√t for fusing 2140 KA2√s t = 0.1 to 10ms, no voltage reapplied
VF(TO) Max. value of threshold
voltage
rfMax. value of forward slope
resistance
VFM Max. peak forward voltage 1.40 V Ipeak = 942A, TJ = 25°C
Parameter 300U Units Conditions
Forward Conduction
KA2s
A
0.610 V
0.751 mΩTJ = 200°C
300U(R) Series
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Bulletin I2039 rev. C 03/03
180° 0.020 0.015 TJ = TJ max.
120° 0.024 0.025
90° 0.031 0.034
60° 0.045 0.047
30° 0.077 0.077
Conduction angle Sinusoidal conduction Rectangular conduction Units Conditions
K/W
Ordering Information Table
300 U R 060 A
1 2 34 5
Device Code
1- 300 = Standard 300U device
302 = 300U Top Threaded version
2- U = Essential Part Number
3- R = Stud Reverse Polarity (Anode to Stud)
None = Stud Normal Polarity (Cathode to Stud)
4- Voltage code: Code x 10 = VRRM (See Voltage Ratings table)
5- A = Essential Part Number
NOTE: For Metric Device M16 x 1.5 Contact Factory
∆RthJC Conduction
(The following table shows the increment of thermal resistence RthJC when devices operate at different conduction angles than DC)
300U(R) Series
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Bulletin I2039 rev. C 03/03
28.45 (1.12)
MAX.
27.94 (1.10) DIA. MAX.
3/4"-16UNF-2A
19.02 (0.749)
DIA. MAX.
9.27 (0.365)
7.87 (0.310)
31.75 (1.250) max.
ACROSS FLATS
16.51 (0.65)
14.99 (0.59)
ACROSS FLATS
18.29 (0.72)
16.76 (0.66)
9.50 (0.374) MAX. DIA.
3/8"-24UNF-2A
21.03 (0.828)
20.14 (0.793)
3.18 (0.125)
MAX.
58.67 (2.31)
55.63 (2.19)
Outline Table
300U-A Series
Conforms to JEDEC DO-205AB (DO-9)
All dimensions in millimeters (inches)
302U-A Series
IR Case Style B26
All dimensions in millimeters (inches)
* FOR METRIC DEVICE: M16 X 1.5
CONTACT FACTORY
300U(R) Series
5
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Bulletin I2039 rev. C 03/03
Fig. 2 - Current Ratings CharacteristicsFig. 1 - Current Ratings Characteristics
110
120
130
140
150
160
170
180
190
200
0 100 200 300 400 500
DC
30° 60° 90°120° 180°
Maxi m u m Allowable Case Temperatur e (°C )
Condu ction Period
Av e rage Fo rward Curren t (A )
300U(R) Series
R (DC) = 0.1 8 K/W
thJC
120
140
160
180
200
0 50 100 150 200 250 300 350
30° 60° 90° 120°
180°
Max imum A llowable Case Temperature (°C)
Conduction Angle
Av e rage Forward Curren t (A)
300U(R) Series
R (DC) = 0.1 8 K/W
thJC
Fig. 3 - Forward Power Loss Characteristics
Fig. 4 - Forward Power Loss Characteristics
25 50 75 100 125 150 175 200
M aximum Allowable A m bien t Tem peratu re ( °C)
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
R = 0.1 K/W - Delta R
0.2 K/W
thS
A
350
0
50
100
150
200
250
300
350
400
0 50 100 150 200 250 300
RMS Limit
180°
120°
90°
60°
30°
Conducti on A ngle
M ax imu m A v erage For ward Power Loss ( W)
A ve rage Forward Curr e n t ( A)
300U(R) Series
T = 200°C
J
25 50 75 100 125 150 175 200
M axi m um A llowable A m bient Te mpe rature ( °C)
3 K/W
1.5 K/W
1 K/W
0.7 K/W
0.3 K/W
0.2 K/W
R = 0.1 K/W - Delta R
thS
A
0.5 K/W
500
0
50
100
150
200
250
300
350
400
450
500
0 100 200 300 400
DC
180°
120°
90°
60°
30°
RMS Lim it
Conducti on Per i od
A verage Forward Current ( A )
M aximum Av e rage Forward Powe r Loss (W)
300U(R) Series
T = 200°C
J
300U(R) Series
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Bulletin I2039 rev. C 03/03
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
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
110100
Number Of Equal Amplitude Half Cycle C urrent Pulses (N )
Pea k Ha lf Si ne Wav e Forward C urr ent ( A)
Initial T = 200°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At Any Rated Load C ondition And Wit h
Rat ed V Applied Followin g Surge.
RRM J
300U(R) Series
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
0.01 0.1 1
Pulse Tr ain D uration (s)
Peak Half Sine W ave Forward Cur rent (A)
Initial T = 200°C
No Voltage Reapplied
Rated V Reapplied
Versus Pulse Train Duration.
Maximum Non Repetiti ve Surge Cu rrent
RRM
J
300U(R) Series
10
100
1000
10000
00.511.522.53
T = 25°C
J
In stant ane o u s Forwar d C urren t ( A )
Instantaneous For ward Voltage (V)
T = 200°C
J
300U(R) Series
Square Wave Pulse Duration (s)
Transient Thermal Impedance ZthJC (K/W)
0.001
0.01
0.1
1
0.0001 0.001 0.01 0.1 1 10
300U(R) Series
Steady State Value
RthJC = 0.18 K/W
(DC Operation)
300U(R) Series
7
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Bulletin I2039 rev. C 03/03
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7309
Visit us at www.irf.com for sales contact information. 03/03
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial Level.
Qualification Standards can be found on IR's Web site.
