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 1600 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 Version
400A
1
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SD400N/R Series
2
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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
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 I2t 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 rea pplied
I2√t Maximum I2√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, TJ = 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 = T J 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 = TJ max.
0.80 (16.7% x π x IF(AV) < I < π x IF(AV)), TJ = TJ max.
SD400N/R Series
Bulletin I2082 rev. D 03/03
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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
120° 0.023 0.023
90° 0.029 0.031 K/W TJ = TJ max.
60° 0.042 0.044
30° 0.073 0.074
Conduction angle Sinusoidal conduction Rectangular conduction Units Conditions
Ordering Information Table
SD 40 0 N 24 P C
1 2 34 5 67
Device Code
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
7- C = Ceramic Housing
NOTE: For Metric Device M16 x 1.5 Contact Factory
SD400N/R Series
4
Bulletin I2082 rev. D 03/03
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Outline Table
Conform to JEDEC DO-205AB (DO-9)
All dimensions in millimeters (inches)
Fig. 1 - Current Ratings Characteristics Fig. 2 - Current Ratings 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°
A ve rage Fo rw ard C urren t (A)
Conduction Angl e
Maximum Allowable Case Temperature (° C)
SD400N/R Series
R (DC) = 0 .1 1 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°
Condu cti on Peri od
Maxi mu m A llowable Case Temperatu re (°C)
A verage Fo rward Curren t ( A)
SD400N/ R Se rie s
R (DC) = 0 .1 1 K/W
thJC
* FOR METRIC DEVICE: M16 X 1.5
CONTACT FACTORY
SD400N/R Series
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Fig. 3 - Forward Power Loss Characteristics
Fig. 4 - Forward Power Loss Characteristics
10 30 50 70 90 110 130 150 170 190
Max imum Allowabl e Ambient Temperature (°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 Lim it
Conduction Angle
M aximum A verage Forward Po we r Loss ( W)
A v erage For w ar d Curr e nt ( A )
SD400N/ R Se rie s
T = 190°C
J
10 30 50 70 90 110 130 150 170 190
M aximu m A ll o wable A m bien t Tempe rature ( °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°
RMS Limit
Conduction Peri od
M aximu m A v erage Forward Power Loss (W)
Average Forwar d Cu rren t (A)
SD400N/ R Se rie s
T = 190°C
J
Fig. 5 - Maximum Non-Repetitive Surge Current Fig. 6 - Maximum Non-Repetitive Surge Current
2000
3000
4000
5000
6000
7000
8000
110100
N umber Of Equal Ampl itude Hal f Cycle Cur r ent Pul ses (N )
P eak H alf Sine Wave Forwar d Curr ent (A)
SD400N/ R Se rie s
Initial T = 190°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
J
A t An y Rat ed Load C on dition A nd W ith
Rated V Applied Foll owing Surge.
RRM
1000
2000
3000
4000
5000
6000
7000
8000
9000
0.01 0.1 1
Pulse T ra in Duration (s)
Peak H alf Sine W ave For ward Curr ent (A)
Versus Pul se Tr ai n D ur ation.
Maximu m Non Repetitive Surge Curr e nt
Initial T = 190°C
No Voltage Reapplied
Rated V Re applied
RRM
J
SD400N/ R Series
SD400N/R Series
6
Bulletin I2082 rev. D 03/03
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Fig. 7 - Forward Voltage Drop Characteristics
Fig. 8 - Thermal Impedance ZthJC Characteristic
100
1000
10000
0.5 1 1.5 2 2.5
T = 25°C
J
Instan tan e ous Forward V o ltage (V)
Instan tan e ous Forward C ur ren t (A)
SD400N/ R Se rie s
T = 190°C
J
0.001
0.01
0.1
1
0.001 0.01 0.1 1 10
Square Wave P ulse Duration (s)
thJC
Tran sien t Th e rmal Impedance Z (K/W)
SD400N/ R Se rie s
Ste ady St ate Valu e :
R = 0.11 K/W
(D C Oper ati o n)
thJC
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.
