SRAD820
THRU
SRAD860
8.0 AMPS. Schottky Barrier Rectifiers
Voltage Range
20 to 60 Volts
Current
8.0 Amperes
Features
Low forward voltage
125
O
C operating junction temperature
Epoxy meets UL94, VO at 1/8”
Guaranteed reverse avalanche
Compact size
Lead formed for surface mount
D
-
PAK
.250(6.55)
.246(6.45)
.211(5.36)
.207(5.26)
.093(2.35)
.089(2.25)
.013(0.54)
.011(0.48)
Marking
.274(6.95)
.270(6.85)
.250(6.55)
.246(6.45)
.043(1.10)
.035(0.90)
0 5
.384(9.75)
.364(9.25)
.112(2.85)
.092(2.35)
.059(1.45)
.039(0.95)
0 5
30
5
Mechanical Data
Cases: Epoxy, molded
Weight: 0.4 gram (approximately)
Finish: All external surfaces corrosion resistant and
terminal leads are readily solderable
Lead and mounting surface temperature for
soldering purposes: 260
O
C max. for 10 seconds
Shipped 75 units per plastic tube
Marking: SRAD820, SRAD830, SRAD840,
SRAD850, SRAD860
.024(0.60)
.031(0.80)
.013(0.54)
.011(0.48)
.053(1.30)
.045(1.10)
.211(5.36)
.207(5.26)
.165(4.20)
.149(3.80)
1
2
3
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25℃ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
Symbol SRAD SRAD SRAD SRAD SRAD
Units
Type Number
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current at
T
C
= 88℃
Nonrepetitive Peak Surge Current
(Surge applied at rated load conditions halfwave,
single phase, 60 HZ)
Maximum Instantaneous Forward Voltage at
@8.0A
Maximum D.C. Reverse Current @ Tc=25℃
at Rated DC Blocking Voltage(Note 1) @ Tc=100℃
Maximum Thermal Resistance Per Leg
(Note 2)
Operating Junction Temperature Range
Storage Temperature Range
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
I
R
R
θ
JC
R
θ
JA
T
J
T
STG
820
20
14
20
830
30
21
30
840
40
28
40
8.0
75
850
50
35
50
860
60
42
60
V
V
V
A
A
0.55
1.4
35
6
80
-65 to +125
-65 to +150
0.7
V
mA
mA
℃/W
℃
℃
Notes:
1
. Pulse Test: Pulse Width = 300us, 2.0% Duty Cycle.
2.
Thermal Resistance from Junction to Case and Thermal Resistance from Junction to
Ambient.
- 118 -
RATINGS AND CHARACTERISTIC CURVES (SRAD820 THRU SRAD860 )
FIG.1- FORWARD CURRENT DERATING CURVE
10
9
FIG.2-TYPICAL FORWARD CHARACTERISTICS
PER LEG
50
-8
40
Tj=125 C
INSTANTANEOUS FORWARD CURRENT. (A)
SR
AD
0
82
AVERAGE FORWARD CURRENT. (A)
8
7
6
5
4
3
2
1
0
80
10
SR
A
5
D8
0-
86
0
1.0
Tj=25
o
C
Pulse Width=300 s
1% Duty Cycle
85
90
95
100
105
110
115
O
120
125
130
CASE TEMPERATURE. ( C)
FIG.3- TYPICAL REVERSE CHARACTERISTICS
PER LEG
100
0.1
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
FORWARD VOLTAGE. (V)
INSTANTANEOUS REVERSE CURRENT. (mA)
Tj=125 C
10
Tj=100 C
FIG.4- TYPICAL JUNCTION CAPACITANCE PER LEG
Tj=25 C
1
1000
CAPACITANCE. (pF)
0.1
Tj=25 C
0.01
0
5
10
15
20
25
30
35
PERCENT OF RATED PEAK REVERSE VOLTAGE.
100
0.4
1
3
10
REVERSE VOLTAGE. (V)
30
60
- 119 -
PCB Design
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