Vishay 8EWS..S Series Data Sheet
SURFACE MOUNTABLE
INPUT RECTIFIER DIODE
Description/Features
The 8EWS..S rectifier SAFEIR series has been
optimized for very low forward voltage drop, with
moderate leakage. The glass passivation technology
used has reliable operation up to 150° C junction
temperature.
The High Reverse Voltage range available allows
design of input stage primary rectification with
Outstanding Voltage Surge capability.
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 I2108 rev. G 08/00
SAFEIR Series
8EWS..S
VF< 1V @ 5A
I
= 200A
FSM
V
800 to 1200V
RRM
Output Current in Typical Applications
Applications Single-phase Bridge Three-phase Bridge Units
NEMA FR-4 or G10 glass fabric-based epoxy 1.2 1.6
with 4 oz (140µm) copper
Aluminum IMS, R
Aluminum IMS with heatsink, R
TA = 55°C, TJ = 125°C, footprint 300mm
Major Ratings and Characteristics
= 15°C/W 2.5 2.8 A
thCA
= 5°C/W 5.5 6.5
thCA
2
Package Outline
Characteristics 8EWS..S Units
I
Sinusoidal
F(AV)
waveform
V
Range (*) 800 to 1200 V
RRM
I
FSM
VF@ 5A, TJ = 25°C 1.0 V
T
J
(*) for higher voltage up to 1600V contact factory
8
200 A
- 55 to 150 °C
A
TO-252AA (D-Pak)
1
8EWS..S SAFEIR Series
Bulletin I2108 rev. G 08/00
Voltage Ratings
V
, maximum V
Part Number
RRM
peak reverse voltage peak reverse voltage 150°C
VVmA
8EWS08S 800 900
8EWS10S 1000 1100 0.5
8EWS12S 1200 1300
Absolute Maximum Ratings
Parameters 8EWS..S Units Conditions
I
Max. Average Forward Current 8 A @ TC = 95° C, 180° conduction half sine wave
F(AV)
I
Max. Peak One Cycle Non-Repetitive 170 10ms Sine pulse, rated V
FSM
Surge Current 200 10ms Sine pulse, no voltage reapplied
I2t Max. I2t for fusing 144 10ms Sine pulse, rated V
204 10ms Sine pulse, no voltage reapplied
2
I
√t Max. I2√t for fusing 2040 A2√s t = 0.1 to 10ms, no voltage reapplied
A
A2s
Electrical Specifications
, maximum non repetitive I
RSM
RRM
RRM
applied
applied
RRM
Parameters 8EWS..S Units Conditions
VFMMax. Forward Voltage Drop 1.1 V @ 8A, TJ = 25°C
r
Forward slope resistance 21.8 mΩ
t
V
Threshold voltage 0.81 V
F(TO)
IRMMax. Reverse Leakage Current 0.05 TJ = 25 °C
mA
TJ = 150°C
VR = rated V
0.50 TJ = 150 °C
Thermal-Mechanical Specifications
Parameters 8EWS..S Units Conditions
TJMax. Junction Temperature Range - 55 to 150 °C
T
Max. Storage Temperature Range - 55 to 150 °C
stg
Soldering Temperature 240 °C for 10 seconds (1.6mm from case)
R
Max. Thermal Resistance Junction 3 °C/W DC operation
thJC
to Case
R
Typ. Thermal Resistance Junction 50 °C/W
thJA
to Ambient (PCB Mount)**
wt Approximate Weight 1(0.03) g (oz.)
T Case Style TO-252AA (D-PAK)
**When mounted on 1" square (650mm2) PCB of FR-4 or G-10 material 4 oz (140µm) copper 40°C/W
For recommended footprint and soldering techniques refer to application note #AN-994
2
RRM
8EWS..S SAFEIR Series
Bulletin I2108 rev. G 08/00
150
140
130
120
110
100
90
80
70
Maximum Allowable Case Temperature ( C)
0123456789
8EWS..S Series
R (D C) = 3 C/W
thJC
Conduction Angle
30
60
90
120
Average Forward Current (A)
Fig. 1 - Current Rating Characteristics
12
10
8
6
4
2
0
Maximum Average Forward Power Loss (W)
180
120
90
60
30
RMS Limit
Conduction Angle
8EWS..S Series
T = 150 C
J
0123456789
Average Forw ard Curren t (A)
Fig. 3 - Forward Power Loss Characteristics
180
150
140
130
120
110
100
90
80
Maximum Allowable Case Temperature ( C)
02468101214
8EWS..S Series
R (DC) = 3 C/W
thJC
Conduction Period
30
60
90
120
180
Average Forward Current (A)
DC
Fig. 2 - Current Rating Characteristics
14
DC
180
12
120
90
60
10
30
8
RMS Limit
6
4
2
0
Maximum Average Forward Power Loss (W)
02468101214
Average Forward Current (A)
Conduction Period
8EWS..S Series
T = 150 C
J
Fig. 4 - Forward Power Loss Characteristics
180
At Any Rated Load Condition And With
Rated V Applied Following Surge.
170
160
RRM
Initia l T = 150 C
J
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
150
140
130
120
110
8EWS..S Series
Peak Half Sine W ave Forward Current (A)
100
1 10 100
Number Of Equal Amplitude Half Cycle Current Pulses (N)
Fig. 5 - Maximum Non-Repetitive Surge Current
200
Maximum Non Repetitive Surge Current
190
180
170
Versus Pulse Train Duration.
Initial T = 150 C
J
No Vo ltage Reapplied
Ra ted V Reapp lied
RRM
160
150
140
130
120
8EWS..S Series
110
Peak Half Sine Wave Forward Current (A)
100
0.01 0.1 1
Pulse Train Duration (s)
Fig. 6 - Maximum Non-Repetitive Surge Current
3
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