MUR840, MUR860, RURP840, RURP860
Data Sheet
January 2002
8A, 400V - 600V Ultrafast Diodes
The MUR840, MUR860, RURP840 and RURP860 are low
forward voltage drop ultrafast recovery rectifiers (t
rr
< 60ns).
They use a glass-passivated ion-implanted, epitaxial
construction.
These devices are intended for use as output rectifiers and
flywheel diodes in a variety of high-frequency pulse-width
modulated switching regulators. Their low stored charge and
attendant fast reverse-recovery behavior minimize electrical
noise generation and in many circuits markedly reduce the
turn-on dissipation of the associated power switching
transistors.
Formerly developmental type TA09616.
Features
• Ultrafast with Soft Recovery . . . . . . . . . . . . . . . . . . . <60ns
• Operating Temperature. . . . . . . . . . . . . . . . . . . . . . .175
o
C
• Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . .600V
• Avalanche Energy Rated
• Planar Construction
Applications
• Switching Power Supplies
• Power Switching Circuits
• General Purpose
Ordering Information
PART NUMBER
MUR840
RURP840
MUR860
RURP860
PACKAGE
TO-220AC
TO-220AC
TO-220AC
TO-220AC
BRAND
MUR840
RURP840
MUR860
RURP860
Packaging
JEDEC TO-220AC
ANODE
CATHODE
CATHODE
(FLANGE)
NOTE: When ordering, use the entire part number.
Symbol
K
A
Absolute Maximum Ratings
T
C
= 25
o
C, Unless Otherwise Specified
MUR840
RURP840
400
400
400
8
16
100
75
20
-65 to 175
300
260
MUR860
RURP860
600
600
600
8
16
100
75
20
-65 to 175
300
260
UNITS
V
V
V
A
A
A
W
mJ
o
C
o
C
o
C
Peak Repetitive Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
RRM
Working Peak Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
RWM
DC Blocking Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
R
Average Rectified Forward Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
F(AV)
(T
C
= 155
o
C)
Repetitive Peak Surge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
FRM
(Square Wave, 20kHz)
Nonrepetitive Peak Surge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
FSM
(Halfwave, 1 Phase, 60Hz)
Maximum Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P
D
Avalanche Energy (See Figures 10 and 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E
AVL
Operating and Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T
STG
, T
J
Maximum Lead Temperature for Soldering
Leads at 0.063 in. (1.6mm) from case for 10s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T
L
Package Body for 10s, see Tech Brief 334. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T
PKG
©2002 Fairchild Semiconductor Corporation
MUR840, MUR860, RURP840, RURP86 Rev. B
MUR840, MUR860, RURP840, RURP860
Electrical Specifications
T
C
= 25
o
C, Unless Otherwise Specified
MUR840, RURP840
SYMBOL
V
F
TEST CONDITION
I
F
= 8A
I
F
= 8A, T
C
= 150
o
C
I
R
V
R
= 400V
V
R
= 600V
V
R
= 400V, T
C
= 150
o
C
V
R
= 600V, T
C
= 150
o
C
t
rr
I
F
= 1A, dI
F
/dt = 200A/
µ
s
I
F
= 8A, dI
F
/dt = 200A/
µ
s
t
a
t
b
Q
RR
C
J
R
θ
JC
DEFINITIONS
V
F
= Instantaneous forward voltage (pw = 300
µ
s, D = 2%).
I
R
= Instantaneous reverse current.
t
rr
= Reverse recovery time (See Figure 9), summation of t
a
+ t
b
.
t
a
= Time to reach peak reverse current (See Figure 9).
t
b
= Time from peak I
RM
to projected zero crossing of I
RM
based on a straight line from peak I
RM
through 25% of I
RM
(See Figure 9).
Q
RR
= Reverse recovery charge.
C
J
= Junction Capacitance.
R
θ
JC
= Thermal resistance junction to case.
pw = pulse width.
D = duty cycle.
I
F
= 8A, dI
F
/dt = 200A/
µ
s
I
F
= 8A, dI
F
/dt = 200A/
µ
s
I
F
= 8A, dI
F
/dt = 200A/
µ
s
V
R
= 10V, I
F
= 0A
MIN
-
-
-
-
-
-
-
-
-
-
-
-
-
TYP
-
-
-
-
-
-
-
-
32
21
195
25
-
MAX
1.3
1.0
100
-
500
-
60
70
-
-
-
-
2
MIN
-
-
-
-
-
-
-
-
-
-
-
-
-
MUR860, RURP860
TYP
-
-
-
-
-
-
-
-
32
21
195
25
-
MAX
1.5
1.2
-
100
-
500
60
70
-
-
-
-
2
UNITS
V
V
µ
A
µ
A
µ
A
µ
A
ns
ns
ns
ns
nC
pF
o
C/W
Typical Performance Curves
40
500
I
R
, REVERSE CURRENT (µA)
100
175
o
C
100
o
C
I
F
, FORWARD CURRENT (A)
10
10
100
o
C
175
o
C
1
0.5
0
25
o
C
0.5
1
1.5
2
2.5
1
0.1
25
o
C
0.01
0
100
200
300
400
500
600
V
F
, FORWARD VOLTAGE (V)
V
R
, REVERSE VOLTAGE (V)
FIGURE 1. FORWARD CURRENT vs FORWARD VOLTAGE
FIGURE 2. REVERSE CURRENT vs REVERSE VOLTAGE
©2002 Fairchild Semiconductor Corporation
MUR840, MUR860, RURP840, RURP86 Rev. B
MUR840, MUR860, RURP840, RURP860
Typical Performance Curves
60
T
C
= 25
o
C, dI
F
/dt = 200A/µs
50
t, RECOVERY TIMES (ns)
t, RECOVERY TIMES (ns)
40
80
(Continued)
100
T
C
= 100
o
C, dI
F
/dt = 200A/µs
t
rr
60
t
rr
30
20
10
0
0.5
t
a
t
b
40
t
a
t
b
20
1
I
F
, FORWARD CURRENT (A)
4
8
0
0.5
1
I
F
, FORWARD CURRENT (A)
4
8
FIGURE 3. t
rr
, t
a
AND t
b
CURVES vs FORWARD CURRENT
FIGURE 4. t
rr
, t
a
AND t
b
CURVES vs FORWARD CURRENT
I
F(AV)
, AVERAGE FORWARD CURRENT (A)
125
T
C
= 175
o
C, dI
F
/dt = 200A/µs
t, RECOVERY TIMES (ns)
100
8
DC
6
SQ. WAVE
4
t
rr
75
50
t
a
t
b
2
25
0
0.5
0
140
145
150
155
160
165
170
175
1
I
F
, FORWARD CURRENT (A)
4
8
T
C
, CASE TEMPERATURE (
o
C)
FIGURE 5. t
rr
, t
a
AND t
b
CURVES vs FORWARD CURRENT
FIGURE 6. CURRENT DERATING CURVE
100
C
J
, JUNCTION CAPACITANCE (pF)
80
60
40
20
0
0
50
100
150
200
V
R
, REVERSE VOLTAGE (V)
FIGURE 7. JUNCTION CAPACITANCE vs REVERSE VOLTAGE
©2002 Fairchild Semiconductor Corporation
MUR840, MUR860, RURP840, RURP86 Rev. B
MUR840, MUR860, RURP840, RURP860
Test Circuits and Waveforms
V
GE
AMPLITUDE AND
R
G
CONTROL dI
F
/dt
t
1 AND
t
2
CONTROL I
F
L
DUT
R
G
V
GE
t
1
t
2
CURRENT
SENSE
+
V
DD
0
I
F
dI
F
dt
ta
trr
tb
IGBT
-
0.25 I
RM
I
RM
FIGURE 8. t
rr
TEST CIRCUIT
I = 1A
L = 40mH
R < 0.1Ω
E
AVL
= 1/2LI
2
[V
R(AVL)
/(V
R(AVL)
- V
DD
)]
Q
1
= IGBT (BV
CES
> DUT V
R(AVL)
)
L
CURRENT
SENSE
Q
1
V
DD
DUT
R
+
V
DD
I V
FIGURE 9. t
rr
WAVEFORMS AND DEFINITIONS
V
AVL
I
L
I
L
-
t
0
t
1
t
2
t
FIGURE 10. AVALANCHE ENERGY TEST CIRCUIT
FIGURE 11. AVALANCHE CURRENT AND VOLTAGE
WAVEFORMS
©2002 Fairchild Semiconductor Corporation
MUR840, MUR860, RURP840, RURP86 Rev. B
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not intended to be an exhaustive list of all such trademarks.
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DenseTrench™
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EcoSPARK™
E
2
CMOS
TM
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TM
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FACT Quiet Series™
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OPTOPLANAR™
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®
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®
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STAR*POWER™
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®
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DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT
RIGHTS, NOR THE RIGHTS OF OTHERS.
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FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
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2. A critical component is any component of a life
systems which, (a) are intended for surgical implant into
support device or system whose failure to perform can
the body, or (b) support or sustain life, or (c) whose
be reasonably expected to cause the failure of the life
failure to perform when properly used in accordance
support device or system, or to affect its safety or
with instructions for use provided in the labeling, can be
effectiveness.
reasonably expected to result in significant injury to the
user.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Advance Information
Product Status
Formative or
In Design
Definition
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Rev. H4
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