Page 1
Bulletin I2039
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70/300U(R) SERIES
STANDARD RECOVERY DIODES
Features
Alloy diode
Peak reverse voltage up to 1000V
Popular series for rough service
Standard JEDEC types
Stud cathode and stud anode version
Typical Applications
Welders
Power supplies
Motor controls
Battery chargers
General industrial current rectification
Stud Version
250A
300A
Major Ratings and Characteristics
Parameters 70U 300U Units
I
F(AV)
@ T
C
I
FSM
2
I
t @ 50Hz 214 KA2s
V
RRM
T
J
@ 50Hz 6550 A
@ 60Hz 6850 A
@ 60Hz 195 KA
range 100 to 1000 50 to 1000 V
250 300 A
150 130 °C
-65 to 200 °C
2
s
case style
DO-205AB (DO-9)
Page 2
70/300U(R) Series
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ELECTRICAL SPECIFICATIONS
Voltage Ratings
Voltage V
Type number * Code peak reverse voltage repetitive peak rev. voltage
10 100 200
20 200 300
70U 60
40 400 500
60 600 720
80 800 960
100 1000 1200
Voltage V
Type number Code peak reverse voltage repetitive peak rev. voltage
5 50 100 40
10 100 200 40
20 200 300 40
300U
* Also available as JEDEC series: 1N3735 through 1N3743; 1N2054 through 1N2068; 1N4044 through 1N4056.
30 300 400 40
40 400 500 40
60 600 720 40
80 800 960 35
100 1000 1200 30
, maximum repetitive V
RRM
V V mA
, maximum repetitive V
RRM
V V mA
, maximum non- I
RSM
, maximum non- I
RSM
TJ = 200°C
TJ = 175°C
RRM
RRM
max.
max.
Forward Conduction
Parameter 70U 300U Units Conditions
I
F(AV)
I
FSM
2
I
2
I
V
r
f
V
Max. average forward current 250 300 A 180° conduction, half sine wave
@ Case temperature 150 130 °C
Max. peak, one-cycle forward, 6550 t = 10ms No voltage
non-repetitive surge current 6850 t = 8.3ms reapplied
5500 t = 10ms 100% V
A
RRM
5750 t = 8.3ms reapplied Sinusoidal half wave,
t Maximum I2t for fusing 214 t = 10ms No voltage Initial TJ = TJ max.
195 t = 8.3ms reapplied
151 t = 10ms 100% V
KA2s
RRM
138 t = 8.3ms reapplied
√t Maximum I2√t for fusing 2140 KA2√s t = 0.1 to 10ms, no voltage reapplied
Max. value of threshold
F(TO)
voltage
Max. value of forward slope
resistance
Max. peak forward voltage
FM
0.610 V
0.751 mΩ
1.30 -- V (I
-- 1.40 V (I
= 200°C
T
J
x π x I
FM
x π x I
FM
(785A peak), TJ = 25°C
F(AV)
(942A peak), TJ = 25°C
F(AV)
Page 3
70/300U(R) Series
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Fig. 3 - Forward Power Loss Characteristics
Fig. 4 - Forward Power Loss Characteristics
Page 4
Fig. 7 - Forward Voltage Drop Characteristics
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70/300U(R) Series
Fig. 8 - Thermal Impedance Z
Characteristic
thJC
Page 5
Thermal and Mechanical Specifications
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Parameter 70/300U(R) Units Conditions
70/300U(R) Series
T
T
R
R
T Max. allowed mounting torque +0 -20% 37 Not lubricated threads
wt Approximate weight 250 g
** 302U-A uses IR case style B-26
∆R
(The following table shows the increment of thermal resistence R
Max. junction operating temperature range -65 to 200
J
Max. storage temperature range -65 to 200
stg
Max. thermal resistance, junction to case 0.18 DC operation
thJC
Max. thermal resistance, case to heatsink 0.08 Mounting surface, smooth, flat and greased
thCS
28 Lubricated threads
Case style DO-205AB (DO-9)** JEDEC (See Outline Table)
Conduction
thJC
when devices operate at different conduction angles than DC)
thJC
°C
K/W
Nm
Conduction angle Sinusoidal conduction Rectangular conduction Units Conditions
180° 0.020 0.015 T
120° 0.024 0.025
90° 0.031 0.034
60° 0.045 0.047
30° 0.077 0.077
K/W
= TJ max.
J
Ordering Information Table
Device Code
1 - 300 = Standard 300U device
70 = Standard 70U device
302 = 300U Top Threaded version
72 = 70U with Pinch Bolt
2 - U = Essential Part Number
3 - F = Flat Base, available only on 72UF Series
None = Normal Stud
4 - R = Stud Reverse Polarity (Anode to Stud)
None = Stud Normal Polarity (Cathode to Stud)
5 - Voltage code: Code x 10 = V
6 - A = Essential Part Number only for 300U Series
None = 70U Series
300 U R 100 A
1 2
3
4 5 6
(See Voltage Ratings table)
RRM
NOTE: For longer lead Contact Factory
Page 6
70/300U(R) Series
134.6 (5.3 0)
METRIC DEVICE. M20 X 1.5 FOR 300U..AMA
28.45 (1.12)
MAX.
149.9 (5 .90)
53.34 (2.10) MAX.
21.03 (0.83)
20.14 (0.79)
28.45 (1.12)
M AX .
DIA. MAX.
9.27 (0.365)
7.87 (0.310)
16.51 (0.65 )
14.99 (0.59 )
21.03 (0.8 28)
20.14 (0.7 93)
58.67 (2.31)
55.63 (2.19)
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Outline Table
11.51 (0.453)
10.74 (0.423)
3.18 (0.125)
MAX.
UNTHREADED
PORTION
19.18 (0.755)
MAX.
3/4"-16UNF-2A*
8.89 (0.350)
8.38 (0.330)
27.94 (1.10)
DIA. MAX.
31.75 (1.250)
30.94 (1.218)
DIA.
9.27 (0.365)
7.87 (0.310)
ACROSS FLATS
4.32 (0.170) MAX.
13.46 (0.530)
11.94 (0.470)
70U/300U-A Series
Conforms to JEDEC DO-205AB (DO-9)
All dimensions in millimeters (inches)
* METRIC DEVICE. M16 X 1.5 FOR 300U..AM
302U-A Series
IR Case Style B26
All dimensions in millimeters (inches)
19.02 (0.749)
DIA. MAX.
3.18 (0.125)
MAX.
9.50 (0.374) MAX. DIA.
3/8"-24UNF-2A
3/4"-16UNF-2A
19.02 (0.749)
18.29 (0.72)
16.76 (0.66)
ACROSS FLATS
27.94 (1.10) DIA. MAX.
31.75 (1.250)
30.94 (1.218)
ACROSS FLATS
Page 7
Outline Table
12 (0.47)
50 (1.9 7) M A X.
28 .4 5 (1 .12) M AX.
9.27 (0 .36 5)
7.87 (0 .31 0)
ACROSS FLAT
50 (1.96 )
27.6 (1.08)
D IA.
13
(0.51)
20
(0.78)
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70/300U(R) Series
11.19 (0.44) DIA.
36 (1.41) A/C
31.75 (1.250)
30.94 (1.218)
72UF Series
Flat Base
All dimensions in millimeters (inches)
Pinch Bolt
43-8223
9 (0.35) ±
0.1 (0.004)
DIA.
(0.94)
60 (2.36)
24
41 (1.61)
33 (1.29)
24
(0.94)
DIA. 11.25 (0.44)
16
(0.62)
Spring Clamp
FULL RAD.
2.4
(0.09)
5.5 (0.21) DIA.
6
(0.23)
43-8222
7 (0.27)
70UF supplied with spring clamp
72UF supplied with pinch bolt and spring clamp
48 (1.88)
Fig. 2 - Current Ratings CharacteristicsFig. 1 - Current Ratings Characteristics
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