DS23025 Rev. 5 - 3
1 of 2
SR302-SR306
Low Forward Drop
High Surge Current Capacity
Guard Ring for Transient Protection
Low Power Loss, High Efficiency
Mechanical Data
Case: DO-201AD, Molded Plastic
Plastic Package: UL Flammability
Classification Rating 94V-0
Moisture sensitivity: Level 1 per J-STD-020A
Terminals: Axial lead, Solderable per
MIL-STD-202, Method 208
Polarity: Cathode band
Weight: 1.2 grams (approx.)
Notes:
1. Lead Temperature T
L
measured 9.5mm lead length from body.
2. Thermal Resistance from Junction to Ambient Vertical PC Board Mounting, 1.27mm Lead Length.
3. Measured at 1.0MHz and applied reverse voltage of 4.0V.
Features
SR302 - SR306
HIGH CURRENT SCHOTTKY BARRIER RECTIFIER
Characteristic
Symbol
SR302
SR303
SR304
SR305
SR306
Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
V
RRM
V
RWM
V
R
20
30
40
50
60
V
RMS Reverse Voltage
V
R(RMS)
14
21
28
35
42
V
Average Rectified Output Current (Note 1)
T
L
= 95
C
T
L
= 100
C
I
O
3.0
3.0
A
Non-repetitive Peak Forward Surge Current 8.3ms half
sine-wave superimposed on rated load (JEDEC Method)
I
FSM
80
A
Forward Voltage
@I
F
= 3.0A
V
F
0.55
0.72
V
Peak Reverse Current at
@ T
A
= 25
C
Rated DC Blocking Voltage
@ T
A
= 100
C
I
R
1.0
20
mA
Typical Thermal Resistance (Note 2)
R
qJA
20
C/W
Typical Total Capacitance (Note 3)
C
T
300
pF
Operating and Storage Temperature Range
T
J
, T
STG
-65 to +150
C
DO-201AD
Dim
Min
Max
A
25.40
B
7.20
9.50
C
1.20
1.30
D
4.80
5.30
All Dimensions in mm
A
A
B
C
D
Maximum Ratings and Electrical Characteristics
@ T
A
= 25
C unless otherwise specified
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
NOT RECOMMENDED FOR
NEW DESIGNS, USE SB3X0 SERIES
DS23025 Rev. 5 - 3
2 of 2
SR302-SR306
0
1.0
2.0
3.0
Single Phase Half Wave
60Hz Resistive or Inductive Load
4.0
20
40
60
80
100
120 140
I
,
A
VERAGE
RECTIFIED
OUTPUT
CURRENT
(A)
O
T , LEAD TEMPERATURE (C)
Fig. 1, Forward Current Derating Curve
L
SR302
SR303
SR304
SR305
SR306
0
20
40
60
80
100
1
10
100
I
,
PEAK
FOR
W
ARD
SURGE
CURRENT
(A)
FSM
NUMBER OF CYCLES AT 60 Hz
Fig. 4, Max Non-Repetitive Peak Fwd Surge Current
8.3ms Single Half Sine-Wave
JEDEC Method
10
100
1000
0.1
1.0
10
100
C,
T
O
T
A
L
CAP
ACIT
ANCE
(pF)
T
V , REVERSE VOLTAGE (VOLTS)
Fig. 3, Typical Total Capacitance
R
T = 25C
J
0.1
1.0
10
40
0.1
0.5
0.7
0.9
1.1
0.3
I
,
INST
ANT
ANEOUS
FWD
CURRENT
(A)
F
V INSTANTANEOUS FWD VOLTAGE (V)
Fig. 2, Typical Forward Characteristics
F,
TJ = 25C
Pulse Width = 300s
2% Duty Cycle
SR302
SR303
SR304
SR305
SR306
NOT RECOMMENDED FOR
NEW DESIGNS, USE SB3X0 SERIES
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