Philips Semiconductors
Product specification
Rectifier diodes
BYV79EB series
ultrafast, rugged
FEATURES
SYMBOL
QUICK REFERENCE DATA
Low forward volt drop
V
R
= 150 V/ 200 V
Fast switching
Soft recovery characteristic
V
F
0.9 V
Reverse surge capability
High thermal cycling performance
I
F(AV)
= 14 A
Low thermal resistance
I
RRM
= 0.2 A
t
rr
30 ns
GENERAL DESCRIPTION
PINNING
SOT404
Ultra-fast, epitaxial rectifier diodes
PIN
DESCRIPTION
intended for use as output rectifiers
in high frequency switched mode
1
no connection
power supplies.
2
cathode
1
The BYV79EB series is supplied in
the
surface
mounting
SOT404
3
anode
package.
tab
cathode
LIMITING VALUES
Limiting values in accordance with the Absolute Maximum System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
BYV79EB
-150
-200
V
RRM
Peak repetitive reverse voltage
-
150
200
V
V
RWM
Crest working reverse voltage
-
150
200
V
V
R
Continuous reverse voltage
T
mb
145C
-
150
200
V
I
F(AV)
Average rectified forward
square wave
-
14
A
current
2
= 0.5; T
mb
120 C
I
FRM
Repetitive peak forward current t = 25
s;
= 0.5;
-
28
A
per diode
T
mb
120 C
I
FSM
Non-repetitive peak forward
t = 10 ms
-
150
A
current
t = 8.3 ms
-
160
A
sinusoidal; with reapplied
V
RRM(max)
I
RRM
Repetitive peak reverse current t
p
= 2
s;
= 0.001
-
0.2
A
I
RSM
Non-repetitive peak reverse
t
p
= 100
s
-
0.2
A
current
T
stg
Storage temperature
-40
150
C
T
j
Operating junction temperature
-
150
C
1. It is not possible to make connection to pin 2 of the SOT404 package
2. Neglecting switching and reverse current losses.
ESD LIMITING VALUE
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
V
C
Electrostatic discharge
Human body model;
-
8
kV
capacitor voltage
C = 250 pF; R = 1.5 k
k
a
tab
3
1
3
tab
2
July 1998
1
Rev 1.100
Philips Semiconductors
Product specification
Rectifier diodes
BYV79EB series
ultrafast, rugged
THERMAL RESISTANCES
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
R
th j-mb
Thermal resistance junction to
-
-
2
K/W
mounting base
R
th j-a
Thermal resistance junction to
minimum footprint, FR4 board
-
50
-
K/W
ambient
ELECTRICAL CHARACTERISTICS
T
j
= 25 C unless otherwise stated
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
F
Forward voltage
I
F
= 14 A; T
j
= 150C
-
0.83
0.90
V
I
F
= 14 A
-
0.95
1.05
V
I
F
= 50 A
-
1.2
1.4
V
I
R
Reverse current
V
R
= V
RRM
; T
j
= 100 C
-
0.5
1.3
mA
V
R
= V
RRM
-
5
50
A
Q
s
Reverse recovery charge
I
F
= 2 A; V
R
30 V; -dI
F
/dt = 20 A/
s
-
6
15
nC
t
rr1
Reverse recovery time
I
F
= 1 A; V
R
30 V;
-
20
30
ns
-dI
F
/dt = 100 A/
s
t
rr2
Reverse recovery time
I
F
= 0.5 A to I
R
= 1 A; I
rec
= 0.25 A
-
13
22
ns
V
fr
Forward recovery voltage
I
F
= 1 A; dI
F
/dt = 10 A/
s
-
1
-
V
July 1998
2
Rev 1.100
Philips Semiconductors
Product specification
Rectifier diodes
BYV79EB series
ultrafast, rugged
Fig.1. Definition of t
rr1
, Q
s
and I
rrm
Fig.2. Definition of V
fr
Fig.3. Circuit schematic for t
rr2
Fig.4. Definition of t
rr2
Fig.5. Maximum forward dissipation P
F
= f(I
F(AV)
);
square current waveform where I
F(AV)
=I
F(RMS)
x
D.
Fig.6. Maximum forward dissipation P
F
= f(I
F(AV)
);
sinusoidal current waveform where a = form
factor = I
F(RMS)
/ I
F(AV)
.
Q
s
100%
10%
time
dI
dt
F
I
R
I
F
I
rrm
t
rr
I = 1A
R
rec
I
= 0.25A
0A
trr2
0.5A
IF
IR
time
time
V F
V
fr
V F
I
F
0
5
10
15
20
25
0
5
10
15
20
0.5
0.2
0.1
BYV79
IF(AV) / A
PF / W
D = 1.0
Tmb(max) / C
150
140
130
120
110
Vo = 0.744 V
Rs = 0.0112 Ohms
D =
t
p
t
p
T
T
t
I
shunt
Current
to 'scope
D.U.T.
Voltage Pulse Source
R
0
5
10
15
0
5
10
15
1.9
2.2
2.8
4
BYV79
IF(AV) / A
PF / W
Tmb(max) / C
150
140
130
120
a = 1.57
Vo = 0.744 V
Rs = 0.0112 Ohms
July 1998
3
Rev 1.100
Philips Semiconductors
Product specification
Rectifier diodes
BYV79EB series
ultrafast, rugged
Fig.7. Maximum t
rr
at T
j
= 25 C.
Fig.8. Maximum I
rrm
at T
j
= 25 C.
Fig.9. Typical and maximum forward characteristic
I
F
= f(V
F
); parameter T
j
Fig.10. Maximum Q
s
at T
j
= 25 C.
Fig.11. Transient thermal impedance; Z
th j-mb
= f(t
p
).
1
10
trr / ns
1
10
100
1000
dIF/dt (A/us)
IF=1A
IF=10A
100
1.0
10
100
Qs / nC
1.0
10
100
-dIF/dt (A/us)
1000
IF=10A
5A
2A
10
1
0.1
0.01
Irrm / A
1
10
100
-dIF/dt (A/us)
IF=10A
IF=2A
1us
10us
100us
1ms
10ms
100ms
1s
10s
0.001
0.01
0.1
1
10
BYV79E
pulse width, tp (s)
Transient thermal impedance, Zth j-mb (K/W)
D =
t
p
t
p
T
T
P
t
D
0
2
60
50
40
30
20
10
0
max
typ
Tj = 150 C
Tj = 25 C
1.0
0.5
IF / A
VF / V
1.5
July 1998
4
Rev 1.100
Philips Semiconductors
Product specification
Rectifier diodes
BYV79EB series
ultrafast, rugged
MECHANICAL DATA
Dimensions in mm
Net Mass: 1.4 g
Fig.12. SOT404 : centre pin connected to mounting base.
MOUNTING INSTRUCTIONS
Dimensions in mm
Fig.13. SOT404 : minimum pad sizes for surface mounting.
Notes
1. Plastic meets UL94 V0 at 1/8".
11 max
4.5 max
1.4 max
10.3 max
0.5
15.4
2.5
0.85 max
(x2)
2.54 (x2)
17.5
11.5
9.0
5.08
3.8
2.0
July 1998
5
Rev 1.100
Philips Semiconductors
Product specification
Rectifier diodes
BYV79EB series
ultrafast, rugged
DEFINITIONS
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values are given in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and
operation of the device at these or at any other conditions above those given in the Characteristics sections of
this specification is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
Philips Electronics N.V. 1998
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the
copyright owner.
The information presented in this document does not form part of any quotation or contract, it is believed to be
accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any
consequence of its use. Publication thereof does not convey nor imply any license under patent or other
industrial or intellectual property rights.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices or systems where malfunction of these
products can be reasonably expected to result in personal injury. Philips customers using or selling these products
for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting
from such improper use or sale.
July 1998
6
Rev 1.100
Philips Semiconductors
Product specification
Rectifier diodes
BYV79EB series
ultrafast, rugged
DEFINITIONS
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values are given in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and
operation of the device at these or at any other conditions above those given in the Characteristics sections of
this specification is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
Philips Electronics N.V. 1998
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the
copyright owner.
The information presented in this document does not form part of any quotation or contract, it is believed to be
accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any
consequence of its use. Publication thereof does not convey nor imply any license under patent or other
industrial or intellectual property rights.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices or systems where malfunction of these
products can be reasonably expected to result in personal injury. Philips customers using or selling these products
for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting
from such improper use or sale.
July 1998
7
Rev 1.100
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