SR820 thru SR860
SK820 thru SK860
MINIATURE SCHOTTKY BARRIER
RECTIFIER
CHENG- YI
ELECTRONIC
VOLTAGE RANGE
20 TO 80 Volts
CURRENT
8.0 Amperes
TO-220AC
FEATURES
Low switching noise
Low forward voltage drop
Low thermal resistance
High current capability
High surge capability
High reliability
MECHANICAL DATA
Case: TO-220A molded plastic
Epoxy: UL 94V-0 rate flame retardant
Lead: MIL-STD-202 method 208 guaranteed
Mounting position: Any
MAXIMUM RATINGS
( At T
A
=25 C unless otherwise noted)
0
Symbol
Ratings
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
.375" (9.5mm) lead length
Peak Forward Surge Current, 8.3 ms single half
sine-wave superimposed on rated load (JEDEC method)
Typical Thermal Resistance (Note 1)
Typical Junction Capacitance (Note 3)
Operating Temperature Range
Storage and Operating Temperature Range
0
SR820
SK820
20
14
20
SR830
SK830
30
21
30
SR835
SK835
35
25
35
SR840
SK840
40
28
40
8.0
SR845
SK845
45
32
45
SR850
SK850
50
35
50
SR860
SK860
60
42
60
UNITS
UNITS
Volts
Volts
Volts
Amps
Symbol
V
RRM
V
RMS
V
DC
I
O
I
FSM
R
JC
150
2.5
700
-65 to +125
-65 to +150
450
-65 to +150
Amps
0
C/W
pF
0
C
J
T
J
T
STG
Symbol
V
F
I
R
C
C
0
ELECTRICAL CHARACTERISTICS
( At T
A
=25 C unless otherwise noted)
Characteristics
Maximum Instantaneous Forward Voltage at 8.0A DC
0
Maximum Average Reverse Cruuent @T
A
=25 C
at Rated DC Blocking Voltage
@T
A
=100
0
C
SK820
SK830
Sk835
.65
SK840
SK845
SK850
.75
SK860
UNITS
Volts
mAmps
mAmps
1.0
30
Notes : 1. Thermal Resistance Junction to Case.
2. Suffix "R" for Reverse Polarity
3. Measured at 1MHz and applied reserse voltage of 4.0 Volts.
SR820 thru SR860
SK820 thru SK860
MINIATURE SCHOTTKY BARRIER
RECTIFIER
CHENG- YI
ELECTRONIC
RATING AND CHARACTERISTICS CURVES
SR820 THRU SR860
SK820 THRU SK860
Fig.1 - TYPICAL FORWARD CURRENT DERATING CURVE
AVERAGE FORWARD CURRENT AMPERES
10
8
6
Fig.2 - TYPICAL REVERSE CHARACTERISTICS
10
0
TC=150C
INSTANTANEOUS
REVERSE
CURRENT, (mA)
8
SK
50~
880
SK
820
SK
4
2
0
0
50
1.0
=1
TC
2 5C
0
K8
~S
40
100
0
=
TC
75
0
C
150
.1
=
TC
25
0
LEAD TEMPERATURE, C
C
Fig.3
-
MAXIMUM NON-REPETITIVE FORWARD
PEAK FORWARD SURGE CURRENT, (A)
.01
SURGE CURRENT
175
150
125
100
75
50
25
1
10
100
8.3ms Single Half Sine Wave
JEDEC Method
SK820~SK840
SK850~SK880
.001
20
40
60
80
100
120
PERCENT OF RATED PEAK
REVERSE VOLTAGE, (%)
Fig.4
-
TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT, (A)
50
NUMBER OF CYCLES AT 60 Hz
SK820~SK840
10
Fig.5 - TYPICAL JUNCTION CAPACIT
ANCE
JUNCTION CAPACITANCE, (pF)
4000
2000
1000
800
600
400
SK820~SK840
SK850~SK880
1.0
200
100
.1
SK850~SK880
TJ=25
0
C
Pulse Width-300 s
1% DUTY CYCLE
.1
.1
.2
.3
.4
.5
.6
.7
.8
.9
1.0
1.0
10
100
INSTANTANEOUS FORWARD VOLT
AGE, (V)
REVERSE VOLTAGE(V)
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