1Rectifier Device Data
. . . designed for use in switching power supplies, inverters and as
free wheeling diodes, these state–of–the–art devices have the
following features:
•Ultrafast 25, 50 and 75 Nanosecond Recovery Time
•175°C Operating Junction Temperature
•Popular TO–220 Package
•Epoxy Meets UL94, VO @ 1/8″
•Low Forward Voltage
•Low Leakage Current
•High Temperature Glass Passivated Junction
•Reverse Voltage to 600 Volts
Mechanical Characteristics:
•Case: Epoxy, Molded
•Weight: 1.9 grams (approximately)
•Finish: All External Surfaces Corrosion Resistant and Terminal
Leads are Readily Solderable
•Lead Temperature for Soldering Purposes: 260°C Max. for
10 Seconds
•Shipped 50 units per plastic tube
•Marking: U820, U840, U860
MAXIMUM RATINGS
Ri
Sbl
MUR
Ui
Rating Symbol 820 840 860 Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR
200 400 600 Volts
Average Rectified Forward Current
Total Device, (Rated VR), TC = 150°CIF(AV) 8.0 Amps
Peak Repetitive Forward Current
(Rated VR, Square Wave, 20 kHz), TC = 150°CIFM 16 Amps
Nonrepetitive Peak Surge Current
(Surge applied at rated load conditions halfwave, single phase, 60 Hz) IFSM 100 Amps
Operating Junction Temperature and Storage Temperature TJ, Tstg –65 to +175 °C
THERMAL CHARACTERISTICS
Maximum Thermal Resistance, Junction to Case RθJC 3.0 2.0 °C/W
ELECTRICAL CHARACTERISTICS
Maximum Instantaneous Forward Voltage (1)
(iF = 8.0 Amps, TC = 150°C)
(iF = 8.0 Amps, TC = 25°C)
vF0.895
0.975 1.00
1.30 1.20
1.50
Volts
Maximum Instantaneous Reverse Current (1)
(Rated dc Voltage, TJ = 150°C)
(Rated dc Voltage, TJ = 25°C)
iR250
5.0 500
10
µA
Maximum Reverse Recovery T ime
(IF = 1.0 Amp, di/dt = 50 Amps/µs)
(IF = 0.5 Amp, iR = 1.0 Amp, IREC = 0.25 Amp)
trr 35
25 60
50
ns
(1) Pulse Test: Pulse Width = 300 µs, Duty Cycle ≤2.0%.
SWITCHMODE is a trademark of Motorola, Inc.
Preferred devices are Motorola recommended choices for future use and best overall value.
Motorola, Inc. 1996
Order this document
by MUR820/D
SEMICONDUCTOR TECHNICAL DATA
1
34
ULTRAFAST
RECTIFIERS
8 AMPERES
200–400–600 VOLTS
CASE 221B–03
TO–220AC
Motorola Preferred Devices
1
3
4
Rev 3
2Rectifier Device Data
MUR820
Figure 1. Typical Forward Voltage
vF, INSTANTANEOUS VOLTAGE (VOLTS)
0.2 0.50.3 0.7
30
0.1
0.3
0.2
2.0
1.0
100
20
7.0
3.0
0.5
5.0
50
, INSTANTANEOUS FORWARD CURRENT (AMPS)
F
1.2
VR, REVERSE VOLTAGE (VOLTS)
06040 100 120
1000
0.1
0.01
10
100 TJ = 175
°
C
IR
20 80 200
Figure 2. Typical Reverse Current*
TA, AMBIENT TEMPERA TURE (
°
C)
0
12
2.0
6.0
4.0
14
IF(AV)
020 40 60 80 200
TC, CASE TEMPERATURE (
°
C)
140 150
0
2.0
1.0
3.0
5.0
4.0
I
180
Figure 3. Current Derating, Case
Figure 4. Current Derating, Ambient
0
1.0
6.0
10
01.0 2.0
IF(AV), A VERAGE FORWARD CURRENT (AMPS)
Figure 5. Power Dissipation
0.4
0.7
10
70
0.9 1.1
100
°
C
TJ = 175
°
C25
°
C
160 180140
1.0
, REVERSE CURRENT ( A)
100
°
C
25
°
C
170160
* The curves shown are typical for the highest voltage device in the
grouping. Typical reverse current for lower voltage selections can be
estimated from these same curves if VR is sufficiently below rated VR.
P
, A VERAGE FORWARD CURRENT (AMPS)
TJ = 175
°
C
i
, A VERAGE FORWARD CURRENT (AMPS)
F(AV)
3.0 4.0 10
5.0
2.0
RATED VR APPLIED
dc
SQUARE W AVE
m
SQUARE W AVE
0.6 0.8 1.0
100 120 140 160 180
8.0
10 dc
, AVERAGE POWER DISSIPATION (W ATTS)
F(AV)
5.0 6.0 7.0 8.0 9.0
3.0
4.0
9.0
8.0
7.0
7.0
6.0
8.0
10
9.0
SQUARE W AVE
dc
SQUARE W AVE
dc
R
q
JA = 16
°
C/W
R
q
JA = 60
°
C/W
(NO HEAT SINK)
3Rectifier Device Data
MUR840
Figure 6. Typical Forward Voltage
vF, INSTANTANEOUS VOLTAGE (VOLTS)
0.6 1.0
30
0.1
0.3
0.2
2.0
1.0
100
20
7.0
3.0
0.5
5.0
50
, INSTANTANEOUS FORWARD CURRENT (AMPS)
F
VR, REVERSE VOLTAGE (VOLTS)
0 150100 250 300
1000
0.1
0.01
10
100 TJ = 175
°
C
IR
50 200 500
Figure 7. Typical Reverse Current*
TA, AMBIENT TEMPERA TURE (
°
C)
0
12
2.0
6.0
4.0
14
IF(AV)
020 40 60 80 200
TC, CASE TEMPERATURE (
°
C)
140 150
0
2.0
1.0
3.0
5.0
4.0
I
180
Figure 8. Current Derating, Case
Figure 9. Current Derating, Ambient
0
1.0
6.0
10
01.0 2.0
IF(AV), A VERAGE FORWARD CURRENT (AMPS)
Figure 10. Power Dissipation
0.4
0.7
10
70
1.4
100
°
C
TJ = 175
°
C25
°
C
400 450350
1.0
, REVERSE CURRENT ( A)
100
°
C
25
°
C
170160
* The curves shown are typical for the highest voltage device in the
grouping. Typical reverse current for lower voltage selections can be
estimated from these same curves if VR is sufficiently below rated VR.
P
, A VERAGE FORWARD CURRENT (AMPS)
TJ = 175
°
C
i
, A VERAGE FORWARD CURRENT (AMPS)
F(AV)
3.0 4.0 10
5.0
2.0
RATED VR APPLIED
dc
SQUARE W AVE
m
SQUARE W AVE
0.8 1.2 1.6
100 120 140 160 180
8.0
10 dc
, AVERAGE POWER DISSIPATION (W ATTS)
F(AV)
5.0 6.0 7.0 8.0 9.0
3.0
4.0
9.0
8.0
7.0
7.0
6.0
8.0
10
9.0
SQUARE W AVE
dc
SQUARE W AVE
dc
R
q
JA = 16
°
C/W
R
q
JA = 60
°
C/W
(NO HEAT SINK)
150
°
C
4Rectifier Device Data
MUR860
Figure 11. Typical Forward Voltage
vF, INSTANTANEOUS VOLTAGE (VOLTS)
0.6 1.0
30
0.1
0.3
0.2
2.0
1.0
100
20
7.0
3.0
0.5
5.0
50
, INSTANTANEOUS FORWARD CURRENT (AMPS)
F
VR, REVERSE VOLTAGE (VOLTS) 600100 300
1000
0.1
0.01
10
100 TJ = 150
°
C
IR
200 500
Figure 12. Typical Reverse Current*
TA, AMBIENT TEMPERA TURE (
°
C)
0
7.0
2.0
6.0
4.0
9.0
IF(AV)
020 40 60 80 200
TC, CASE TEMPERATURE (
°
C)
140 150
0
2.0
1.0
3.0
5.0
4.0
I
180
Figure 13. Current Derating, Case
Figure 14. Current Derating, Ambient
0
1.0
6.0
10
01.0 2.0
IF(AV), A VERAGE FORWARD CURRENT (AMPS)
Figure 15. Power Dissipation
0.4
0.7
10
70
1.4
100
°
C
TJ = 150
°
C
25
°
C
400
1.0
, REVERSE CURRENT ( A)
100
°
C
25
°
C
170160
* The curves shown are typical for the highest voltage device in the
grouping. Typical reverse current for lower voltage selections can be
estimated from these same curves if VR is sufficiently below rated VR.
P
, A VERAGE FORWARD CURRENT (AMPS)
TJ = 175
°
C
i
, A VERAGE FORWARD CURRENT (AMPS)
F(AV)
3.0 4.0 10
5.0
2.0
RATED VR APPLIED
dc
SQUARE W AVE
m
SQUARE W AVE
0.8 1.2 1.6
100 120 140 160 180
8.0
10
dc
, AVERAGE POWER DISSIPATION (W ATTS)
F(AV)
5.0 6.0 7.0 8.0 9.0
3.0
4.0
9.0
8.0
7.0
7.0
6.0
8.0
10
9.0
SQUARE
WAVE
dc
SQUARE W AVE
dc
R
q
JA = 16
°
C/W
R
q
JA = 60
°
C/W
(NO HEAT SINK)
1.8
11
12
13
14
3.0
5.0
1.0
5Rectifier Device Data
MUR820, MUR840, MUR860
0.01
0.02
0.05
0.1
0.2
0.5
1.0
0.01 0.02 0.05 0.1 0.2 0.5 1.0 2.0 5.0 10 20 50 100 200 500 1000
t, TIME (ms)
Figure 16. Thermal Response
D = 0.5
0.05
SINGLE PULSE
P(pk) t1t2
DUTY CYCLE, D = t1/t2
Z
θ
JC(t) = r(t) R
θ
JC
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT T1
TJ(pk) – TC = P(pk) Z
θ
JC(t)
r(t), TRANSIENT THERMAL RESIST ANCE (NORMALIZED)
1000
10
30
10 100
VR, REVERSE VOLTAGE (VOLTS)
Figure 17. Typical Capacitance
C, CAPACITANCE (pF)
0.1
0.01
100
300
1.0
TJ = 25
°
C
MUR840, MUR860
MUR820
R
θ
JC = 1.5
°
C/W MAX
6Rectifier Device Data
PACKAGE DIMENSIONS
CASE 221B–03
(TO–220AC)
ISSUE B
B
R
J
D
G
L
H
Q
T
U
A
K
CS
4
13
DIM MIN MAX MIN MAX
MILLIMETERSINCHES
A0.595 0.620 15.11 15.75
B0.380 0.405 9.65 10.29
C0.160 0.190 4.06 4.82
D0.025 0.035 0.64 0.89
F0.142 0.147 3.61 3.73
G0.190 0.210 4.83 5.33
H0.110 0.130 2.79 3.30
J0.018 0.025 0.46 0.64
K0.500 0.562 12.70 14.27
L0.045 0.060 1.14 1.52
Q0.100 0.120 2.54 3.04
R0.080 0.110 2.04 2.79
S0.045 0.055 1.14 1.39
T0.235 0.255 5.97 6.48
U0.000 0.050 0.000 1.27
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
F
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the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
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