Page 1
Philips Semiconductors Product specification
Rectifier diodes BYV79EB series
ultrafast, rugged
FEATURES SYMBOL QUICK REFERENCE DATA
• Low forward volt drop VR = 150 V/ 200 V
• Fast switching
• Soft recovery characteristic VF ≤ 0.9 V
• Reverse surge capability
• High thermal cycling performance I
F(AV)
= 14 A
• Low thermal resistance
I
RRM
= 0.2 A
trr ≤ 30 ns
GENERAL DESCRIPTION PINNING SOT404
Ultra-fast, epitaxial rectifier diodes PIN DESCRIPTION
intended foruse as output rectifiers
in high frequency switched mode 1 no connection
power supplies.
2 cathode
1
The BYV79EB series issupplied 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 Tmb ≤ 145˚C - 150 200 V
I
F(AV)
Average rectified forward square wave - 14 A
current
2
δ = 0.5; Tmb ≤ 120 ˚C
I
FRM
Repetitive peak forward current t = 25 µs; δ = 0.5; - 28 A
per diode Tmb ≤ 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 tp = 2 µs; δ = 0.001 - 0.2 A
I
RSM
Non-repetitive peak reverse tp = 100 µs - 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 kΩ
k a
tab 3
13
tab
2
July 1998 1 Rev 1.100
Page 2
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
Tj = 25 ˚C unless otherwise stated
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
F
Forward voltage IF = 14 A; Tj = 150˚C - 0.83 0.90 V
IF = 14 A - 0.95 1.05 V
IF = 50 A - 1.2 1.4 V
I
R
Reverse current VR = V
RRM
; Tj = 100 ˚C - 0.5 1.3 mA
VR = V
RRM
-550µA
Q
s
Reverse recovery charge IF = 2 A; VR ≥ 30 V; -dIF/dt = 20 A/µs- 6 15 nC
t
rr1
Reverse recovery time IF = 1 A; VR ≥ 30 V; - 20 30 ns
-dIF/dt = 100 A/µs
t
rr2
Reverse recovery time IF = 0.5 A to IR = 1 A; I
rec
= 0.25 A - 13 22 ns
V
fr
Forward recovery voltage IF = 1 A; dIF/dt = 10 A/µs-1-V
July 1998 2 Rev 1.100
Page 3
Philips Semiconductors Product specification
Rectifier diodes BYV79EB series
ultrafast, rugged
Fig.1. Definition of t
rr1
, Qs 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 PF = f(I
F(AV)
);
square current waveform where I
F(AV)
=I
F(RMS)
x √D.
Fig.6. Maximum forward dissipation PF = 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
Page 4
Philips Semiconductors Product specification
Rectifier diodes BYV79EB series
ultrafast, rugged
Fig.7. Maximum trr at Tj = 25 ˚C.
Fig.8. Maximum I
rrm
at Tj = 25 ˚C.
Fig.9. Typical and maximum forward characteristic
IF = f(VF); parameter T
j
Fig.10. Maximum Qs at Tj = 25 ˚C.
Fig.11. Transient thermal impedance; Z
th j-mb
= f(tp).
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
Page 5
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
Page 6
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
Page 7
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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