I2126 rev. B 10/99
QUIET
IR
Series
8EWF..S
SURFACE MOUNTABLE
FAST SOFT RECOVERY
DIODE
V
F
t
rr
< 1.3V @ 8A
= 80ns
V
RRM
1000 to 1200V
Description/Features
The 8EWF..S fast soft recovery
QUIET
IR
rectifier
series has been optimized for combined short
reverse recovery time, low forward voltage drop
and low leakage current
The glass passivation ensures stable reliable
operation in the most severe temperature and
power cycling conditions.
Typical applications are both:
Output rectification and freewheeling diode
in inverters, choppers and converters.
Input rectifications where severe
restrictions on conducted EMI should be met.
Major Ratings and Characteristics
Characteristics
I
F(AV)
Sinusoidal waveform
V
RRM
I
FSM
V
F
t
rr
T
J
@ 8 A, T
J
= 25°C
@ 1A, 100A/µs
range
Package Outline
Units
A
V
A
V
ns
°C
8EWF..S
8
1000 to 1200
170
1.3
80
- 40 to 150
TO-252AA (D-Pak)
Document Number: 93161
www.vishay.com
1
QUIET
8EWF..S
I2126 rev. B 10/99
IR
Series
Voltage Ratings
Part Number
V
RRM
, maximum
peak reverse voltage
V
8EWF10S
8EWF12S
1000
1200
V
RSM
, maximum non repetitive
peak reverse voltage
V
1100
1300
I
RRM
150°C
mA
4
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward Current
I
FSM
I
2
t
I
√t
2
8EWF..S
8
170
200
144
200
Units
A
A
A
2
s
A
√s
2
Conditions
@ T
C
= 94° C, 180° conduction half sine wave
10ms Sine pulse, rated V
RRM
applied
10ms Sine pulse, no voltage reapplied
10ms Sine pulse, rated V
RRM
applied
10ms Sine pulse, no voltage reapplied
t = 0.1 to 10ms, no voltage reapplied
Max. Peak One Cycle Non-Repetitive
Surge Current
Max. I
2
t for fusing
Max. I
√t
for fusing
2
2000
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
r
t
Forward slope resistance
8EWF..S
1.3
25.6
0.93
0.1
4
Units
V
mΩ
V
mA
Conditions
@ 8A, T
J
= 25°C
T
J
= 150°C
T
J
= 25 °C
T
J
= 150 °C
V
F(TO)
Threshold voltage
I
RM
Max. Reverse Leakage Current
V
R
= rated V
RRM
Typical Reverse Recovery Characteristics
Parameters
t
rr
I
rr
Q
rr
S
Reverse Recovery Time
Reverse Recovery Current
Reverse Recovery Charge
Typical Snap Factor
tb/ta
8EWF..S
270
4.2
1
0.6
Units
ns
A
µC
-
Conditions
I
F
@ 8Apk
@ 25A/µs
@ T
J
= 25°C
di
dt
I
rr
I
FM
t
rr
ta
tb
Q
rr
t
Document Number: 93161
www.vishay.com
2
QUIET
8EWF..S
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Junction Temperature Range
Max. Storage Temperature Range
Soldering Temperature
R
thJC
Max. Thermal Resistance Junction
to Case
R
thJA
Typ. Thermal Resistance Junction
to Ambient (PCB Mount)**
wt
T
Approximate Weight
Case Style
2
IR
Series
I2126 rev. B 10/99
8EWF..S
- 40 to 150
- 40 to 150
240
2.5
50
1(0.03)
Units
°C
°C
°C
°C/W
°C/W
g (oz.)
Conditions
for 10 seconds
DCoperation
TO-252AA (D-Pak)
**When mounted on 1" square (650mm ) 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
Maximum Allowable Case Temperature (°C)
140
130
120
8EWF..S Series
R
thJC
(DC) = 2.5 °C/W
Maximum Allowable Case Temperat ure (°C)
150
150
140
130
120
110
100
90
80
70
60
0
2
4
6
8
10
12
14
Average Forward Current (A)
30°
60°
90°
120°
180°
DC
Conduction Period
8EWF..S Series
R
thJC
(DC) = 2.5 °C/W
Conduction Angle
110
100
90
80
70
60
0
1
2
3
4
5
6
7
8
9
Average Forward Current (A)
30°
60°
90°
120°
180°
Fig. 1 - Current Rating Characteristics
Maximum Average Forward Power Loss (W)
180°
120°
90°
60°
30°
RMS Limit
6
4
2
0
0
1
2
3
4
5
6
7
8
9
Average Forward Current (A)
Conduction Angle
Fig. 2 - Current Rating Characteristics
Maximum Average Forward Power Loss (W)
18
16
14
12
10
8
6
4
2
0
0
2
4
6
8
10
12
14
Average Forward Current (A)
RMS Limit
Conduction Period
12
10
8
DC
180°
120°
90°
60°
30°
8EWF..S Series
T
J
= 150°C
8EWF..S Series
T
J
= 150°C
Fig. 3 - Forward Power Loss Characteristics
Fig. 4 - Forward Power Loss Characteristics
Document Number: 93161
www.vishay.com
3
QUIET
8EWF..S
I2126 rev. B 10/99
180
170
160
150
140
130
120
110
100
90
80
1
8EWF..S Series
Peak Half Sine Wave Forward Current (A)
IR
Series
Peak Half Sine Wave Forward Current (A)
200
190
180
170
160
150
140
130
120
110
100
90
80
0.01
8EWF..S Series
Maximum Non Repetitive Surge Current
Versus Pulse Train Duration.
At Any Rated Load Condition And With
Rated V
RRM
Applied Following Surge.
Initial T
J
= 150°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
Initial T
J
= 150°C
No Voltage Reapplied
Rated V
RRM
Reapplied
10
100
0.1
Pulse Train Duration (s)
1
Number Of Equal Amplitude Half Cycle Current Pulses (N)
Fig. 5 - Maximum Non-Repetitive Surge Current
1000
Instantaneous Forward Current (A)
Fig. 6 - Maximum Non-Repetitive Surge Current
T
J
= 25°C
100
T
J
= 150°C
10
8EWF..S Series
1
0.5
1
1.5
2
2.5
3
3.5
4
4.5
Instantaneous Forward Voltage (V)
Fig. 7 - Forward Voltage Drop Characteristics
Maximum Reverse Recovery Time - Trr (µs)
Maximum Reverse Recovery Time - Trr (µs)
0.6
0.5
0.4
0.3
0.2
0.1
0
0
40
80
120
160
200
Rate Of Fall Of Forward Current - di/dt (A/µs)
I
FM
= 10 A
8A
5A
2A
1A
0.8
8EWF..S Series
T
J
= 150 °C
0.6
8EWF..S Series
T
J
= 25 °C
0.4
I
FM
= 10 A
8A
5A
2A
1A
0.2
0
0
40
80
120
160
200
Rate Of Fall Of Forward Current - di/dt (A/µs)
Fig. 8 - Recovery Time Characteristics, T
J
= 25°C
Fig. 9 - Recovery Time Characteristics, T
J
= 150°C
Document Number: 93161
www.vishay.com
4
QUIET
8EWF..S
Maximum Reverse Recovery Charge - Qrr (µC)
Maximum Reverse Recovery Charge - Qrr (µC)
IR
Series
I2126 rev. B 10/99
2
8EWF..S Series
T
J
= 25 °C
1.6
8A
I
FM
= 10 A
5
8EWF..S Series
T
J
= 150 °C
4
8A
I
FM
= 10 A
1.2
5A
3
5A
0.8
2A
2
2A
0.4
1A
1
1A
0
0
40
80
120
160
200
Rate Of Fall Of Forward Current - di/dt (A/µs)
0
0
40
80
120
160
200
Rate Of Fall Of Forward Current - di/dt (A/µs)
Fig. 10 - Recovery Charge Characteristics, T
J
= 25°C
Maximum Reverse Recovery Current - Irr (A)
20
8EWF..S Series
T
J
= 25 °C
16
I
FM
= 10 A
8A
5A
2A
Fig. 11 - Recovery Charge Characteristics, T
J
= 150°C
Maximum Reverse Recovery Current - Irr (A)
25
8EWF..S Series
T
J
= 150 °C
20
8A
I
FM
= 10 A
12
15
5A
2A
8
1A
10
1A
4
5
0
0
40
80
120
160
200
Rate Of Fall Of Forward Current - di/dt (A/µs)
0
0
40
80
120
160
200
Rate Of Fall Of Forward Current - di/dt (A/µs)
Fig. 12 - Recovery Current Characteristics, T
J
= 25°C
Transient Thermal Impedance Z
thJC
(°C/W)
10
Fig. 13 - Recovery Current Characteristics, T
J
= 150°C
Steady State Value
(DC Operation)
1
D = 0.50
D = 0.33
D = 0.25
D = 0.17
D = 0.08
Single Pulse
8EWF..S Series
0.1
0.0001
0.001
0.01
Square Wave Pulse Duration (s)
0.1
1
Fig. 14 - Thermal Impedance Z
thJC
Characteristics
Document Number: 93161
www.vishay.com
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