SCHOTTKY BARRIER RECTIFIER
VOLTAGE RANGE 20 to 60 Volts CURRENT 8.0 Amperes
RECTRON
SEMICONDUCTOR
TECHNICAL SPECIFICATION
FEATURES
* Low switching noise
* Low forward voltage drop
* Low thermal resistance
* High current capability
* High surge capabitity
* High reliability
MECHANICAL DATA
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
o
C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
* Case: D2PAK molded plastic
* Epoxy: Device has UL flammability classification 94V-O
* Lead: MIL-STD-202E method 208C guaranteed
* Mounting position: Any
* Weight: 2.2 grams
SR820S
THRU
SR860S
D2PAK
MAXIMUM RATINGS (At T
A
= 25
o
C unless otherwise noted)
ELECTRICAL CHARACTERISTICS (At T
A
= 25
o
C unless otherwise noted)
NOTES : 1. Thermal Resistance Junction to Case.
2. Suffix "R" for Reverse Polarity.
Dimensions in inches and (millimeters)
2. Measured at 1 MHz and applied reverse voltage of 4.0 volts.
2003-6
RATINGS
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
at Derating Case Temperature
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)
SYMBOL
V
RRM
V
DC
I
FSM
C
J
T
STG
V
RMS
UNITS
Volts
Volts
Volts
Amps
8.0
150
2.5
700
Amps
0
C / W
0
C
Storage Temperature Range
R
J C
I
O
pF
Operating Temperature Range
T
J
SR820S
20
-55 to + 150
-55 to + 150
0
C
SR835S
SR830S
SR840S SR845S SR850S SR860S
30
35
40
45
50
60
14
21
25
28
32
35
42
20
30
35
40
45
50
60
450
CHARACTERISTICS
Maximum Average Reverse Current
at Rated DC Blocking Voltage
V
F
SYMBOL
I
R
m A m p s
Maximum Instantaneous Forward Voltage at 8.0A DC
Volts
5.0
50
@T
C
= 25
o
C
@T
C
= 100
o
C
.65
m A m p s
UNITS
SR820S
SR835S
SR830S
SR840S SR845S SR850S SR860S
.75
.412 (10.46)
.388 (9.86)
.189 (4.80)
.173 (4.40)
.053 (1.35)
.049 (1.25)
.020 (0.50)
.055 (1.40)
.047 (1.20)
.202 (5.13)
.028 (0.71)
.337 (8.55)
.049 (1.25 REF.)
.321 (8.15)
.626 (15.89)
.069 (1.75)
.098 (2.50)
.578 (14.69)
.126 (3.20)
.110 (2.80)
.198 (5.03)
.036 (0.91)
.053 (1.35)
.083 (2.10)
.012 (0.30)
PIN 1
PIN 2
K - HEATSINK
1
2
K
RECTRON
RATING AND CHARACTERISTIC CURVES ( SR820S THRU SR860S )
FIG. 1 - TYPICAL FORWARD CURRENT DERATING CURVE
AVERAGE FORWARD CURRENT, (A)
CASE TEMPERATURE, ( )
0
50
100
150
10
8
6
4
2
0
Single Phase Half Wave
60Hz Inductive or
Resistive Load
SR820S~SR845S
SR850S~SR860S
FIG. 4 - TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE, (pF)
REVERSE VOLTAGE, ( V )
4000
2000
1000
800
600
400
200
100
.1
.4
1.0
4
10
40
80 100
SR820S~SR845S
SR850S~SR860S
FIG. 2 - TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT, (mA)
PERCENT OF RATED PEAK
REVERSE VOLTAGE, (%)
10
1.0
.1
.01
.001
20
0
40
60
80
100
120
140
TC = 150
TC = 125
TC = 75
TC = 25
SR820S~SR845S
SR850S~SR860S
SR820S~SR845S
SR850S~SR860S
FIG. 5 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT, (A)
INSTANTANEOUS FORWARD VOLTAGE, (V)
50
10
1.0
0.1
.1
.2
.3
.4
.5
.6
.7
.8
.9
1.0
TJ = 25
Pulse Width=300uS
1% Duty Cycle
FIG. 3 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT
PEAK FORWARD SURGE CURRENT, (A)
NUMBER OF CYCLES AT 60Hz
155
150
145
140
135
130
125
1
2
5
10
20
50
100
8.3ms Single Half Sine-Wave
(JEDED Method)
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