Pr
el
im
SRAF820
THRU
SRAF860
in
ar
Isolation 8.0 AMPS. Schottky Barrier Rectifiers
y
Voltage Range
20 to 60 Volts
Current
8.0 Amperes
Features
Low forward voltage drop
High current capability
High reliability
High surge current capability
.124(3.16)
MAX
ITO-220AC
.185(4.7)
MAX
.406(10.3)MAX
.134(3.4)DIA
.113(3.0)DIA
.272(6.9)
.248(6.3)
.112(2.85)
.100(2.55)
.606(15.5)
.583(14.8)
Mechanical Data
Cases: ITO-220AC molded plastic
Epoxy: UL 94V-O rate flame retardant
Terminals: Leads solderable per MIL-
STD-202, Method 208
guaranteed
Polarity: As marked
High temperature soldering guaranteed:
250°C/10 seconds/.25”,(6.35mm) from
case.
Weight: 2.24 grams
.063(1.6)
MAX
.161(4.1)
MAX
.110(2.8)
.098(2.5)
.030(0.76)
MAX
.055(1.4)
MAX
.035(0.9)
MAX
.071(1.8)
MAX
.543(13.8)
.512(13.2)
.100(2.55)
.100(2.55)
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25°C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
SRAF820 SRAF830
SRAF84
0 SRAF850 SRAF860
Units
Type Number
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
See Fig. 1
Peak Forward Surge Current, 8.3 ms Single
Half Sine-wave Superimposed on Rated Load
(JEDEC method )
M
aximum
I
nstantaneous
F
orward
V
oltage
@8.0A
Maximum D.C. Reverse Current @ Tc=25°C
at Rated DC Blocking Voltage @ Tc=100°C
Typical Thermal Resistance (Note 1) R
θ
JC
Typical Junction Capacitance (Note 2)
Operating Junction Temperature Range T
J
Storage Temperature Range T
STG
20
14
20
30
21
30
40
28
40
8.0
150
50
35
50
60
42
60
V
V
V
A
A
0.55
0.5
50
5.0
0.70
700
-65 to +125
-65 to +150
Notes: 1. Thermal Resistance from Junction to Case Per Leg
Notes:
2. Measured at 1MHz and Applied Reverse Voltage of 4.0V D.C.
460
-65 to +150
V
mA
mA
°C/W
pF
°C
°C
- 42 -
RATINGS AND CHARACTERISTIC CURVES (SRAF820 THRU SRAF860)
FIG.1- MAXIMUM FORWARD CURRENT DERATING
CURVE
SRAF850-60
FIG.2- TYPICAL REVERSE CHARACTERISTICS
10
0
5C
Tj=12
10
AVERAGE FORWARD CURRENT. (A)
8
6
SRAF820-40
4
INSTANTANEOUS REVERSE CURRENT. (mA)
1.0
Tj=75
0
C
.10
2
0
Tj=25
0
C
0
50
100
o
150
CASE TEMPERATURE. ( C)
175
FIG.3- MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
8.3ms Single Half Sine Wave
JEDEC Method
.01
PEAK FORWARD SURGE CURRENT. (A)
150
125
100
.001
20
40
60
80
100
120
PERCENT OF RATED PEAK REVERSE VOLTAGE. (%)
FIG.5- TYPICAL FORWARD CHARACTERISTICS
50
25
INSTANTANEOUS FORWARD CURRENT. (A)
50
1
2
5
10
20
50
100
10
40
0-
82
0
AF
-6
50
SR
F8
A
SR
NUMBER OF CYCLES AT 60Hz
FIG.4- TYPICAL JUNCTION CAPACITANCE
4000
JUNCTION CAPACITANCE.(pF)
2000
Tj=25
0
C
1000
800
600
400
1.0
Tj=25
o
C
Pulse Width=300 s
1% Duty Cycle
SR
AF
82
0-4
SR
0
AF
85
0 -6
0
200
0.1
.1
.2
.3
.4
.5
.6
.7
.8
.9
100
.1
.4
1.0
4
10
REVERSE VOLTAGE. (V)
40
100
FORWARD VOLTAGE. (V)
- 43 -
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