Features
Wide current range
High voltage ratings up to 2400V
High surge current capabilities
Stud cathode and stud anode version
Standard JEDEC types
Typical Applications
Converters
Power supplies
Machine tool controls
High power drives
Medium traction applications
Major Ratings and Characteristics
IF(AV) 400 A
@ TC120 °C
IF(RMS) 630 A
IFSM @ 50Hz 8250 A
@ 60Hz 8640 A
I2t@
50Hz 340 KA2s
@ 60Hz 311 KA2s
VRRM range 400 to 2400 V
TJ- 40 to 190 ° C
Parameters SD400N/R Units
case style
DO-205AB (DO-9)
SD400N/R SERIES
STANDARD RECOVERY DIODES Stud V ersion
400A
Bulletin I2082/A
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SD400N/R Series
ELECTRICAL SPECIFICATIONS
Voltage Ratings
Voltage VRRM , maximum repetitive VRSM , maximum non- IRRM max.
Type number Code peak reverse voltage repetitive peak rev. voltage @ TJ = TJ max.
VVmA
04 400 500
08 800 900
12 1200 1300
16 1600 1700
20 2000 2100
24 2400 2500
SD400N/R 15
IF(AV) Max. average forward current 400 A 180° conduction, half sine wave
@ Case temperature 120 °C
IF(AV) Max. average forward current 480 A 180° conduction, half sine wave
@ Case temperature 100 °C
IF(RMS) Max. RMS forward current 630 A DC @ 110°C case temperature
IFSM Max. peak, one-cycle forward, 8250 t = 10ms No voltage
non-repetitive surge current 8640 t = 8.3ms reapplied
6940 t = 10ms 100% VRRM
7270 t = 8.3ms reapplied Sinusoidal half wave,
I2t Maximum I 2t for fusing 340 t = 10ms No voltage Initial TJ = TJ max.
311 t = 8.3ms reapplied
241 t = 10ms 100% VRRM
220 t = 8.3ms reapplied
I2√t Maximum I 2√t for fusing 3400 KA2√s t = 0.1 to 10ms, no voltage reapplied
VF(TO)1 Low level value of threshold
voltage
VF(TO)2 High level value of threshold
voltage
rf1Low level value of forward
slope resistance
rf2High level value of forward
slope resistance
VFM Max. forward voltage drop 1.62 V Ipk= 1500A, T J = TJ max, tp = 10ms sinusoidal wave
Parameter SD400N/R Units Conditions
Forward Conduction
KA2s
A
V
mΩ
0.51 (I > π x IF(AV)),TJ = TJ max.
0.55 (16.7% x π x IF(AV) < I < π x IF(AV)), TJ = TJ max.
0.85 (I > π x IF(AV)),TJ = T J max.
0.80 (16.7% x π x IF(AV) < I < π x I F(AV)), TJ = TJ max.
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SD400N/R Series
TJMax. junction operating temperature range -40 to 190
Tstg Max. storage temperature range -55 to 200
RthJC Max. thermal resistance, junction to case 0.11 DC operation
RthCS Max. thermal resistance, case to heatsink 0.04 Mounting surface, smooth, flat and greased
T Max. allowed mounting torque ±10% 27 Nm Not lubricated threads
wt Approximate weight 250 g
Case style DO-205AB (DO-9) See Outline Table
Parameter SD400N/R Units Conditions
Thermal and Mechanical Specifications
°C
∆RthJC Conduction
(The following table shows the increment of thermal resistence RthJC when devices operate at different conduction angles than DC)
K/W
180° 0.020 0.013 TJ = TJ max.
120° 0.023 0.023
90° 0.029 0.031
60° 0.042 0.044
30° 0.073 0.074
Conduction angle Sinusoidal conduction Rectangular conduction Units Conditions
K/W
Ordering Information Table
SD 40 0 N 24 P B C
1 2 34 5 67
Device Code
8
1- Diode
2- Essential part number
3- 0 = Standard recovery
4- N = Stud Normal Polarity (Cathode to Stud)
R = Stud Reverse Polarity (Anode to Stud)
5- Voltage code: Code x 100 = VRRM (See Voltage Ratings table)
6-P = Stud base DO-205AB (DO-9) 3/4" 16UNF-2A
M =Stud base DO-205AB (DO-9) M16 X 1.5
7- B = Flag top terminal (for Cathode/ Anode Leads)
S = Isolated lead with silicone sleeve
(Red = Reverse Polarity; Blue = Normal Polarity)
None = Non isolated lead
8- C = Ceramic Housing (over 1600V)
V = Glass-metal seal (only up to 1600V)
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SD400N/R Series
Outline Table
Conform to JEDEC DO-205AB (DO-9)
All dimensions in millimeters (inches)
MAX.
CERAMIC HOUSING
MAX.
MAX.
21 (0.82)
MAX.
19 (0.75)
9.5 (0.37) MIN.
DIA. 8.5 (0.33) NOM.
82 (3.23) MIN.
DIA. 27.5 (1.08) MAX.
38 (1.50)
1 6 ( 0.63)
SW 32
* FOR METRIC DEVICE: M16 X 1.5
210 (8.27) ± 10 (0 . 39)
3/4"-16UNF-2A*
C.S. 35mm
4 (0.16) MAX.
39 (1.53)
MAX.
2
(0.054 s.i.)
MAX.
GLASS-METAL SEAL
MAX.
MAX.
21 (0 . 82)
MAX.
19 (0.75)
9.5 (0 . 37) MIN.
DIA. 8.5 (0.33) NOM.
75 (2.95) MIN .
DIA. 28.5 (1.08) MAX.
28.5 (1. 12)
16 (0.63)
SW 32
* FOR METRIC DEVICE: M16 X 1.5
200 (7. 87) ± 10 (0. 39)
3/4-16UNF-2A*
C.S. 35mm
4 (0.16) MAX.
39 (1.53)
MAX.
2
(0.054 s.i.)
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SD400N/R Series
Outline Table
DO-205AB (DO-9) Flag
All dimensions in millimeters (inches)
MAX.
CERAMIC HOUSING
21 (0.82)
MAX. 38 (1 .50 )
3 (0.12)
32 (1.26)
79 (3.11) MAX.
21 (0.83)
DIA. 6.5 (0.25)
13 (0.51)
DIA. 27.5 (1.08) MAX.
72 (2.83)
3/4"-16UNF-2A*
*FOR METRIC DEVICE. M16 X 1.5
14 (0.55)
16 (0 .63)
MAX.
MAX.
GLASS-METAL SEAL
MAX.
21 (0 .83)
MAX.
DIA. 28.5 (1.12) MAX.
28.5 (1.12)
16 (0.63)
21 (0.83)
14 (0.55) DIA. 6.5 (0.26)
3 (0.12)
32 (1 .26)
3/4"-16UNF-2A*
*FOR METRIC DEVICE: M16 X 1.5
70 (2.75) MAX.
13 (0.51)
62 (2 .44)
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SD400N/R Series
Fig. 1 - Current Ratings Characteristics Fig. 2 - Current Ratings Characteristics
Fig. 3 - Forward Power Loss Characteristics
Fig. 4 - Forward Power Loss Characteristics
110
120
130
140
150
160
170
180
190
0 50 100 150 200 250 300 350 400 450
30° 60° 90° 120°180°
Ave rage Fo rward Curre nt ( A)
Conduction A ngl e
Max imum Allowable C ase Temperature (°C)
SD400N /R Series
R (DC) = 0.11 K/W
thJC
100
110
120
130
140
150
160
170
180
190
0 100 200 300 400 500 600 700
DC
30° 60°
90°
120° 180°
Con duction Per iod
Maximum Allo wable Case Temper ature (° C )
Av erage For ward Cu rr ent (A)
SD400N /R Series
R (DC) = 0.11 K/W
thJC
10 30 50 70 90 110 130 150 170 190
Maximum A l lo wable A mbien t Temperatur e (°C )
0.2 K/W
0.3 K/W
0.4 K/W
0.6 K
/W
1 K/W
R
= 0.04 K/W
- Delta R
thSA
0.1 K/W
1.8 K/W
0
50
100
150
200
250
300
350
400
450
500
550
0
50 100 150 200 250 300 350 400
180°
120°
90°
60°
30° RMS Limit
Con duction A ngl e
Maxi mum Average Forw ard Po wer Loss (W)
Average Fo rward C urr ent (A )
SD400N/ R Series
T = 19 0°C
J
10 30 50 70 90 110 130 150 170 190
Maximum A ll owable Ambien t Tem perature ( °C)
0.2 K
/W
0.3 K/W
0.4 K/W
0.6 K/W
1 K/W
R
= 0.04 K/W - Delta R
thS
A
0.1 K/W
1.8 K/W
0
100
200
300
400
500
600
700
800
0 100 200 300 400 500 600 700
DC
180°
120°
90°
60°
30°
RM S Limit
Conduction Period
Maxi mum Average Forwar d Power Loss (W )
Average Fo rward C urrent ( A)
SD400 N/R Series
T = 19 0°C
J
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SD400N/R Series
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
2000
3000
4000
5000
6000
7000
8000
1 10 100
Number Of Equal Amplitude Half Cycle Current Pulses (N)
Peak Half Sine Wave For war d Cur rent (A )
SD400 N/R Series
Initial T = 190°C
@ 60 Hz 0.0083 s
@ 50 Hz 0. 010 0 s
J
At An y Rated Load C on dition A nd With
Rate d V Appl ie d Fo llowing Surge.
RRM
1000
2000
3000
4000
5000
6000
7000
8000
9000
0.01 0.1 1
Puls e Train Duration (s)
Pe ak Half Sine Wave Forward Curre nt ( A)
Ver su s Pulse Tr ain Du ration.
Max imum Non Repetitive Surge Curre nt
Initial T = 1 90°C
No Voltage Reapplied
Rated V Reapplied
RRM
J
SD400N/ R Se rie s
100
1000
10000
0.511.522.5
T = 25°C
J
Instantaneous Forward Voltage (V)
Instantaneou s Forward Cu r rent (A)
SD400N /R Series
T = 19 0°C
J
0.001
0.01
0.1
1
0.001 0.01 0.1 1 10
Square Wave P uls e Duration (s )
thJC
Transient Thermal Im pedance Z ( K/W)
SD400N/R S eries
Steady State Val ue:
R = 0 .11 K/W
(D C Oper ation)
thJC
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