DS23025 Rev. 5 - 3 1 of 2 SR302-SR306
www.diodes.com ãDiodes Incorporated
·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 TLmeasured 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
VRRM
VRWM
VR
20 30 40 50 60 V
RMS Reverse Voltage VR(RMS) 14 21 28 35 42 V
Average Rectified Output Current (Note 1) TL= 95°C
TL= 100°CIO3.0
¾
¾
3.0 A
Non-repetitive Peak Forward Surge Current 8.3ms half
sine-wave superimposed on rated load (JEDEC Method) IFSM 80 A
Forward Voltage @IF= 3.0A VF0.55 0.72 V
Peak Reverse Current at @ TA= 25°C
Rated DC Blocking Voltage @ TA= 100°CIR1.0
20 mA
Typical Thermal Resistance (Note 2) RqJA 20 °C/W
Typical Total Capacitance (Note 3) CT300 pF
Operating and Storage Temperature Range TJ,T
STG -65 to +150 °C
DO-201AD
Dim Min Max
A25.40 ¾
B7.20 9.50
C1.20 1.30
D4.80 5.30
All Dimensions in mm
A
A
B
C
D
Maximum Ratings and Electrical Characteristics @ TA= 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
www.diodes.com
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 , AVERAGE RECTIFIED OUTPUT CURRENT (A
)
O
T , LEAD TEMPERATURE (°C)
Fi
g
. 1, Forward Current Deratin
g
Curve
L
SR302
SR303
SR304
SR305
SR306
0
20
40
60
80
100
1 10 100
I , PEAK FORWARD SURGE CURRENT (A)
FSM
NUMBER OF CYCLES AT 60 Hz
Fi
g
. 4, Max Non-Repetitive Peak Fwd Sur
g
e Current
8.3ms Single Half Sine-Wave
JEDEC Method
10
100
1000
0.1 1.0 10 100
C,T
O
TAL CAPACITANCE (pF)
T
V , REVERSE VOLTAGE (VOLTS)
Fig. 3, Typical Total Capacitance
R
T = 25°C
J
0.1
1.0
10
4
0
0.1 0.5 0.7 0.9 1.10.3
I , INSTANTANEOUS FWD CURRENT (A)
F
V INSTANTANEOUS FWD VOLTAGE (V)
Fi
g
.2, T
y
pical Forward Characteristics
F,
SR302
SR303
SR304
SR305
SR306
IMPORTANT NOTICE
LIFE SUPPORT
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further
notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither
does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will
agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages.
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the
President of Diodes Incorporated.
