- 100 -
Marking
0 5
0 5
30
5
.250(6.55)
.246(6.45)
.211(5.36)
.207(5.26)
.274(6.95)
.270(6.85)
.250(6.55)
.246(6.45)
.024(0.60)
.031(0.80)
.165(4.20)
.149(3.80)
.043(1.10)
.035(0.90)
.093(2.35)
.089(2.25)
.013(0.54)
.011(0.48)
.384(9.75)
.364(9.25)
.053(1.30)
.045(1.10)
.059(1.45)
.039(0.95)
.112(2.85)
.092(2.35)
.211(5.36)
.207(5.26)
.013(0.54)
.011(0.48)
1
2
3
SRAD320 THRU SRAD360
3.0 AMPS. Schottky Barrier Rectifiers
Voltage Range
20 to 60 Volts
Current
3.0 Amperes
Features
Extremely fast switching
Extremely low forward drop
Guaranteed
reverse
avalanche
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: SRAD320, SRAD330, SRAD340,
SRAD350, SRAD360
D
-
PAK
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%
Type Number
Symbol SRAD
320
SRAD
330
SRAD
340
SRAD
350
SRAD
360
Units
Maximum Recurrent Peak Reverse Voltage
V
RRM
20 30 40 50 60
V
Maximum RMS Voltage
V
RMS
14 21 28 35 42
V
Maximum DC Blocking Voltage
V
DC
20 30 40 50 60
V
Maximum Average Forward Rectified Current
(See Fig. 1
)
I
(AV)
3.0
A
Nonrepetitive Peak Surge Current
(Surge Applied at Rated Load Conditions
Halfwave, Single Phase, 60 HZ)
I
FSM
75
A
Peak Repetitive Reverse Surge Current (Note 1)
I
RRM
1.0
A
M
aximum
I
nstantaneous
F
orward
V
oltage @3.0A
V
F
0.55 0.7
V
Maximum D.C. Reverse Current @ Tc=25
at Rated DC Blocking Voltage @ Tc=125
I
R
0.3
20
mA
mA
Maximum Thermal Resistance Per Leg
(Note 3)
R
JC
R
JA
6
80
/W
Typical Junction Capacitance (Note 2)
Cj
400
pF
Operating Junction Temperature Range
T
J
-65 to +150
-65 to +125
Storage Temperature Range
T
STG
-65 to +150
Notes : 1. 2.0us Pulse Width, f=1.0KH
Z
.
2. Pulse Test : 300 us, 2.0% Duty Cycle.
3. Thermal resistance from Junction to Case and Thermal Resistance from Junction to Ambient.
- 101 -
RATINGS AND CHARACTERISTIC CURVES (SRAD320 THRU SRAD360)
FIG.1- MAXIMUM FORWARD CURRENT DERATING
CURVE
80
100
160
INST
ANT
ANEOUS
REVERSE
CURRENT
.(
m
A
)
A
VERAGE
FOR
W
ARD
CURRENT
.
(A)
130
120
110
90
1K
0
1
2
3
100
V REVERSE VOLTAGE. (VOLTS)
R
Tj=125 C
25 C
0
Tj=25 C
0
4
140
150
CASE TEMPERATURE. ( C)
o
C.CAP
ACIT
ANCE
.
(pF)
700
500
300
200
100
70
50
30
20
10
30
20
10
0
40
50
60
70
100 C
0
125 C
0
FIG.3- TYPICAL REVERSE CHARACTERISTICS
PER LEG
40
20
10
4
2
1
0.4
0.2
0.1
0.04
0.02
0.01
0.004
0.002
0.001
120
100
80
60
40
20
0
PERCENT OF RATED PEAK REVERSE VOLTAGE.
SRAD350-360
SRAD320-340
FIG.2- TYPICAL JUNCTION CAPACITANCE PER LEG
FIG.4- TYPICAL FORWARD CHARACTERISTICS
PER LEG
INST
ANT
ANEOUS
FOR
W
ARD
CURRENT
.
(A)
.2
.3
.4
.5
.6
.7
.8
.9
1.0
0.1
1.0
10
50
FORWARD VOLTAGE. (V)
SRAD320-SRAD340
SRAD
350-SRA
D360
Tj=25oC
Pulse Width=300 s
1% Duty Cycle
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