3.0 AMP FAST RECOVERY RECTIFIERS
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating 25 C ambient temperature uniess otherwies specified.
Single phase half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
TYPE NUMBER
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
.375"(9.5mm) Lead Length at Ta=75 C
FEATURES
MECHANICAL DATA
Peak Forward Surge Current, 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
Maximum Instantaneous Forward Voltage at 3.0A
Maximum DC Reverse Current Ta=25 C
at Rated DC Blocking Voltage Ta=100 C
Maximum Reverse Recovery Time (Note 1)
Typical Junction Capacitance (Note 2)
50
100 200
400 600
35
70 140
280 480
50
100 200
400 600
3.0
200
5.0
150
150
60
-65 +150
A
A
V
A
A
nS
pF
NOTES:
1. Reverse Recovery Time test condition: IF=0.5A, IR=1.0A, IRR=0.25A
2. Measured at 1MHz and applied reverse voltage of 4.0V D.C.
* Low forward voltage drop
* High current capability
* High reliability
* High surge current capability
* Case: Molded plastic
* Epoxy: UL 94V-0 rate flame retardant
* Lead: Axial leads, solderable per MIL-STD-202,
method 208 guranteed
* Polarity: Color band denotes cathode end
* Mounting position: Any
* Weight: 1.10 grams
MR850
MR856
THRU
1.25
VOLTAGE RANGE
50 to 600 Volts
CURRENT
3.0 Amperes
DO-27
Dimensions in inches and (millimeters)
1.0(25.4)
MIN.
1.0(25.4)
MIN.
.375(9.5)
.285(7.2)
.052(1.3)
.048(1.2)
DIA.
.220(5.6)
.197(5.0)
DIA.
Operating and Storage Temperature Range T , T
J
STG
C
MR850 MR851 MR852 MR854 MR856 UNITS
V
V
V
0.1
1.0
.01
10
50
RATING AND CHARACTERISTIC CURVES (MR850 THRU MR856)
CHARACTERISTICS
FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE
A
V
E
R
A
G
E
F
O
R
W
A
R
D
C
U
R
R
E
N
T
,
(
A
)
FIG.5-TYPICAL JUNCTION CAPACITANCE
REVERSE VOLTAGE,(V)
J
U
N
C
T
I
O
N
C
A
P
A
C
I
T
A
N
C
E
,
(
p
F
)
I
N
S
T
A
N
T
A
N
E
O
U
S
F
O
R
W
A
R
D
C
U
R
R
E
N
T
,
(
A
)
FORWARD VOLTAGE,(V)
Pulse Width 300us
1% Duty Cycle
0.5
1.0
1.5
2.0
2.5
3.0
140
120
100
80
60
40
20
0
(+)
(+)
25Vdc
(approx.)
( )
( )
PULSE
GENERATOR
(NOTE 2)
OSCILLISCOPE
(NOTE 1)
1
NON-
INDUCTIVE
NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF.
2. Rise Time= 10ns max., Source Impedance= 50 ohms.
+0.5A
0
-0.25A
-1.0A
|
|
|
|
|
|
|
|
1cm
SET TIME BASE FOR
50 / 10ns / cm
trr
.01 .05 .1 .5 1 5 10 50 100
D.U.T.
.6 .8 1.0 1.2 1.4 1.6 1.8 2.0
3.0
Single Phase
Half Wave 60Hz
Resistive Or Inductive Load
0.375"(9.5mm) Lead Length
FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTICS
10
NONINDUCTIVE
50
NONINDUCTIVE
Tj=25 C
FIG.4-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
50
0
100
150
200
250
NUMBER OF CYCLES AT 60Hz
1
10
5
50
100
Tj=25 C
8.3ms Single Half
Sine Wave
JEDEC method
0 20 40
60 80 100 120 140 160 180 200
0
P
E
A
K
F
O
R
W
A
R
D
S
U
R
G
E
C
U
R
R
E
N
T
,
(
A
)
AMBIENT TEMPERATURE,( C)
FIG.1-TYPICAL FORWARD
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