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INPUT RECTIFIER DIODE
Description/Features
The 40EPS.. rectifier SAFEIR series has been optimized
for very low forward voltage drop, with moderate leakage.
The glass passivation technology used has reliable opera-
tion up to 150° C junction temperature.
Typical applications are in input rectification and these
products are designed to be used with International
Rectifier Switches and Output Rectifiers which are available
in identical package outlines.
Bulletin I2104 rev. C 01/05
SAFEIR Series
40EPS..
VF< 1.1V @ 40A
I
= 475A
FSM
V
= 800 - 1200V
RRM
Major Ratings and Characteristics
Characteristics Values Units
I
Sinusoidal
F(AV)
waveform
V
Range (*)
RRM
I
FSM
VF@ 40A, TJ = 25°C 1.1 V
T
J
(*) for higher voltage up to 1600V contact factory
40 A
800 - 1200 V
475 A
- 40 to 150 °C
Package Outline
TO-247AC (Modified)

40EPS.. SAFEIR Series
Bulletin I2104 rev. C 01/05
Voltage Ratings
V
, maximum V
RRM
Part Number
peak reverse voltage peak reverse voltage 150°C
VVmA
40EPS08 800 900 1
40EPS12 1200 1300
Absolute Maximum Ratings
Parameters 40EPS.. Units Conditions
I
Max. Average Forward Current 40 A @ TC = 105° C, 180° conduction half sine wave
F(AV)
I
Max. Peak One Cycle Non-Repetitive 400 10ms Sine pulse, rated V
FSM
Surge Current 475 10ms Sine pulse, no voltage reapplied
I2t Max. I2t for fusing 800 10ms Sine pulse, rated V
1131 10ms Sine pulse, no voltage reapplied
I2√t Max. I2√t for fusing 11310 A2√s t = 0.1 to 10ms, no voltage reapplied
A
A2s
Electrical Specifications
, maximum non repetitive I
RSM
applied
RRM
applied
RRM
RRM
Parameters 40EPS.. Units Conditions
VFMMax. Forward Voltage Drop 1.1 V @ 40A, TJ = 25°C
rtForward slope resistance 7.16 mΩ
V
Threshold voltage 0.74 V
F(TO)
IRMMax. Reverse Leakage Current 0.1 TJ = 25 °C
TJ = 150°C
mA
1.0 TJ = 150 °C
Thermal-Mechanical Specifications
Parameters 40EPS.. Units Conditions
TJMax. Junction Temperature Range - 40 to 150 °C
T
Max. Storage Temperature Range - 40 to 150 °C
stg
R
Max. Thermal Resistance Junction 0.6 °C/W DC operation
thJC
to Case
R
Max. Thermal Resistance Junction 40 °C/W
thJA
to Ambient
R
Typical Thermal Resistance, Case to 0.2 °C /W Mounting surface , smooth and greased
thCS
Heatsink
wt Approximate Weight 6 (0.21) g (oz.)
T Mounting Torque Min. 6 (5)
Max. 12 (10)
Case Style TO-247AC JEDEC (Modified)
Kg-cm
(Ibf-in)
VR = rated V
RRM

40EPS.. SAFEIR Series
Bulletin I2104 rev. C 01/05
150
145
140
40EPS. . Series
R ( DC) = 0.6 K/ W
thJC
135
130
125
120
115
110
30°
Cond uction Ang le
60°
90°
120°
105
100
95
Maximum Allowable Case Temperature (°C)
0 5 10 15 20 2 5 30 35 40 45
Average Forward Current (A)
Fig. 1 - Current Rating Characteristics
60
55
50
45
40
35
30
25
20
15
10
5
0
Maximum Average Forward Power Loss (W)
180°
120°
90°
60°
30°
Cond uction Ang le
40EPS.. Se ries
T = 150°C
J
0 5 10 15 20 25 30 3 5 40
Average Forward Current (A)
Fig. 3 - Forward Power Loss Characteristics
180°
RM S Li m i t
150
140
130
120
110
100
Maximum Allowable Case Temperature (°C)
0 10203040506070
40EPS.. Series
R (DC ) = 0.6 K/W
thJC
Conduction Period
30°
60°
90°
120°
180°
Average Forward Current (A)
Fig. 2 - Current Rating Characteristics
80
DC
180°
70
120°
90°
60
60°
30°
50
RM S Li m it
40
30
Conduction Period
20
40EPS.. Serie s
10
0
Maximum Average Forward Power Loss (W)
0 10203040506070
T = 150°C
J
Average Forward Current (A)
Fig. 4 - Forward Power Loss Characteristics
DC
1000
100
T = 25°C
J
T = 150°C
10
Inst antaneous Forward Current (A)
1
00.511.522.53
Instantaneous Forward Voltag e (V)
J
40 EPS.. Se ri e s
Fig. 5 - Forward Voltage Drop Characteristics
500
Maximum Non Repetitive Surge Current
450
400
350
300
250
200
40EPS. . Se ries
150
Peak Half Sine Wave Forward Current (A)
100
0.01 0.1 1
Versus Pulse Train Duration.
Pulse Train Duration (s)
Init ial T = 150 °C
No Vo lta g e Rea pp lied
Rated V Reapplied
RRM
J
Fig. 6 - Maximum Non-Repetitive Surge Current

40EPS.. SAFEIR Series
Bulletin I2104 rev. C 01/05
1
D = 0.50
thJC
D = 0.33
D = 0.25
D = 0.17
D = 0.08
0.1
Steady State Value:
(DC Operation)
Transient Thermal Imp edance Z (K/ W)
0.01
0.001 0.01 0.1 1
Outline Table
20.30 (0.800)
19.70 (0.775)
14.80 (0.583)
14.20 (0.559)
Sing le Pulse
15.90 (0.626)
15.30 (0.602)
1 3
Square Wa ve Pulse Durat ion (s)
Fig. 7 - Thermal Impedance Z
3.65 (0.144)
3. 55 ( 0 .139)
5.70 (0.225)
5.30 ( 0.208)
5.50 ( 0.217)
4. 50 ( 0 .17 7)
(2 PLCS.)
4.30 (0 .170)
3.70 (0.145)
Characteristics
thJC
DIA.
40EPS.. Series
5.30 (0.209)
4.70 ( 0.185)
2.5 ( 0.098)
1.5 ( 0.059)
1.40 (0 .056)
1.00 (0 .039)
10.94 ( 0.430)
10.86 (0.427)
2.20 (0 .087)
MAX.
Dimensions in millimeters and inches
2. 40 ( 0 .09 5)
MAX.
0.80 ( 0.032)
0.40 (0.213)

Marking Information
40EPS.. SAFEIR Series
Bulletin I2104 rev. C 01/05
EXAMPLE: THIS IS A 40EPS12
WITH ASSE MBLY
LOT CODE 5657
ASSEMBLED ON WW 35, 2 000
IN THE ASSEMBLY LINE "H"
Ordering Information Table
Device Code
1 - Current Rating (40 = 40A)
2 - Circuit Configuration
3 - Package
4 - Type of Silicon
5 - Voltage code: Code x 100 = V
INTERNATIONAL
RECTIFIER
LOGO
ASSEMBLY
LOT CODE
40 E P S 12
1524
E = Single Diode
P = TO-247AC (Modified)
S = Standard Recovery Rectifier
3
RRM
40EPS12
035H
56 57
08 = 800V
12 = 1200V
PART NUMBER
CATHODE
1
CATHODE
DATE CODE
YEAR 0 = 2000
WEEK 35
LINE H
BASE
2
3
ANODE
This product has been designed and qualified for Industrial Level.
Data and specifications subject to change without notice.
Qualification Standards can be found on IR's Web site.
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7309
01/05