RECTRON SR850, SR845, SR840, SR860, SR820 Datasheet
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RECTRON
SEMICONDUCTOR
TECHNICAL SPECIFICA TION
SCHOTTKY BARRIER RECTIFIER
VOLTAGE RANGE 20 to 60 Volts CURRENT 8.0 Amperes
FEATURES
* Low switching noise
* Low forward voltage drop
* Low thermal resistance
* High current capability
* High surge capabitity
* High reliability
MECHANICAL DATA
* Case: To-220A molded plastic
* Epoxy: Device has UL flammability classification 94V-O
* Lead: MIL-STD-202E method 208C guaranteed
* Mounting position: Any
* Weight: 2.24 grams
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 oC ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
SR820
THRU
SR860
.187 (4.7
.148 (3.8
)
.153 (3.9
)
.413 (10.5
.108
(
2.75
.04MAX.
(
)
1.0
.051
(
1.3
.043 (1.1
.035 (0.9
.102 (2.6
.091 (2.3
Dimensions in inches and (millimeters)
)
)
)
)
)
)
.374 (9.5
)
.146 (3.7
.270 (6.9
.230 (5.8
.610 (15.5
.583 (14.8
.157
(
)
4.0
.583 (14.8
.531 (13.5
.022 (0.56
.014 (0.36
.126
(
3.2
)
)
)
)
)
)
)
)
)
)
TO-220A
)
)
)
.053 (1.3
)
.047 (1.2
MAXIMUM 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)
Operating Temperature Range
Storage Temperature Range
ELECTRICAL CHARACTERISTICS
Maximum Instantaneous Forward Voltage at 8.0A DC Volts
Maximum Average Reverse Current
at Rated DC Blocking Voltage
NOTES : 1. Thermal Resistance Junction to Case.
2. Suffix “R” for Reverse Polarity.
2. Measured at 1 MHz and applied reverse voltage of 4.0 volts.
(At TA = 25oC unless otherwise noted)
RATINGS
(At TA = 25oC unless otherwise noted)
CHARACTERISTICS
@TC = 25oC
@TC = 100oC
SYMBOL
V
RRM
V
RMS
V
DC
I
O
I
FSM
R θ
JC
C
J
T
J
T
STG
SYMBOL
V
F
I
R
SR820
20
14 21 25 28 32 35 42
20 30 35 40 45 50 60
SR835SR830 SR840 SR845 SR850 SR860
30 35 40 45 50 60
150
2.5
700
-65 to + 125
-65 to + 150
.65
5.0
50
-65 to + 150
UNITS
450
UNITSSR820 SR835SR830 SR840 SR845 SR850 SR860
.75
mAmps
mAmps
Volts
Volts
Volts
Amps8.0
Amps
0
C/W
pF
0
C
0
C
2001-4
RATING AND CHARACTERISTIC CURVES
(
SR820 THRU SR860
)
FIG. 1 - TYPICAL FORWARD CURRENT DERATING CURVE
10
8
SR850~SR860
SR820~SR845
6
4
Single Phase Half Wave
60Hz Inductive or
2
Resistive Load
AVERAGE FORWARD CURRENT, (A)
0
0 50 100 150
CASE TEMPERATURE, ( )
FIG. 3 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT
155
150
8.3ms Single Half Sine-Wave
(JEDED Method)
145
140
135
130
125
PEAK FORWARD SURGE CURRENT, (A)
1 2 5 10 20 50 100
NUMBER OF CYCLES AT 60Hz
FIG. 4 - TYPICAL JUNCTION CAPACITANCE
4000
FIG. 2 - TYPICAL REVERSE CHARACTERISTICS
10
1.0
TC = 150
TC = 125
TC = 75
.1
TC = 25
.01
INSTANTANEOUS REVERSE CURRENT, (mA)
SR820~SR845
SR850~SR860
.001
200 40 60 80 100 120 140
PERCENT OF RATED PEAK
REVERSE VOLTAGE, (%)
FIG. 5 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
50
2000
SR820~SR845
1000
800
600
400
SR850~SR860
200
JUNCTION CAPACITANCE, (pF)
100
.1 .4 1.0 4 10 40 80100
REVERSE VOLTAGE, ( V )
10
SR820~SR845
SR850~SR860
1.0
TJ = 25
Pulse Width=300uS
INSTANTANEOUS FORWARD CURRENT, (A)
0.1
1% Duty Cycle
.1 .2 .3 .4 .5 .6 .7 .8 .9 1.0
INSTANTANEOUS FORWARD VOLTAGE, (V)
RECTRON
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