SR302 THRU SR3100
CURRENT 3.0Amperes
VOLTAGE 20 to 100 Volts
Maximum Ratings and Electrical Characteristics
Notes:
(1) Pulse test: 300μS pulse width, 1% duty cycle
(2) Thermal resistance from junction to lead vrtical P.C.B. mounted, 0.5"(12.7mm) lead length
with 2.5X2.5"(63.5X63.5mm) copper pads
(3) Measured 1MHz and reverse voltage of 4.0 volts
(Ratings at 25℃ ambient temperature unless otherwise specified, single phase, half wave, resistive or inductive
load. For capacitive load, derate by 20%)
Features
Mechanical Data
· Plastic Package has Underwriters Laboratory
Flammability Classification 94V-0
· Metal silicon junction, majority carrier conduction
· Guard ring for overvoltage protection
· Low power loss, high efficiency
· High current capability, Low forward voltage drop
· High surge capability
· For use in low voltage, high frequency inverters,
free wheeling, and polarity protection applications
· High temperature soldering guaranteed :
250℃/10 seconds at terminals,
0.375" (9.5mm) lead length, 5lbs. (2.3Kg) tension
· Case : JEDEC DO-201AD molded plastic body
· Terminals : Plated axial leads, solderable per
MIL-STD-750, Method 2026
· Polarity : Color band denotes cathode end
· Mounting Position : Any
· Weight : 0.041 ounce, 1.15 gram
Symbols SR302 SR304 Units
Maximum repetitive peak reverse voltage V
RRM
20 30 40 Volts
Maximum RMS voltage V
RMS
0.55 0.70
Maximum DC blocking Voltage V
DC
Volts
Maximum average forward rectified current
0.375"(9.5mm) lead length(see Fig. 1) I(
AV
) 3.0
Peak forward surge current 8.3ms single half
sine-wave superimposed on rated load
(JEDEC method)
80.0 Amps
Amps
Maximum instantaneous forward voltage
at 3.0A (Note 1) V
F
1.0
Volts
T
A
=25℃
20
Maximum instantaneous reverse
current at rated DC blocking
voltage (Note1) T
A
=100℃
250
mA
Typical thermal resistance (Note 2) 20.0 ℃/W
Operating junction temperature range -65 to +125 ℃
I
R
I
FSM
Rθ
JA
T
J
Volts
SR303
C
J
14 21 28
20 30 40
P
FTypical junction capacitance (Note 3)
Storage temperature range
T
STG
-65 to +150
-65 to +150 ℃
0.85
SR305 SR308
50 60 80
SR306
35 42 56
50 60 80
SR3100
100
70
100
Rθ
JL
10.0
10
160
Dimensions in inches and (millimeters)
DO-201AD
1.0(25.4)
MIN.
1.0(25.4)
MIN.
0.375(9.5)
0.285(7.2)
0.042(1.1)
0.037(0.9)
DIA.
0.210(5.3)
0.188(4.8)
DIA.
FIG.1-FORWARD CURRENT DERATING CURVE
LEAD TEMPERATURE (
℃)
0 175150125100755020
RESISTIVE OR INDUCTIVE LOAD
0.375" (9.5MM) LEAD LENGTH
RATINGS AND CHARACTERISTIC CURVES SR302 THRU SR3100
AVERAGE FORWARD CURRENT
AMPERES
0
4.0
3.0
2.0
1.0
INSTANTANEOUS FORWARD CURRENT (AMPERES)
INSTANTANEOUS FORWARD VOLTAGE (VOLTS)
PULSE WIDTH=300
㎲
1% DUTY CYCLE
0 1.41.21.00.80.60.40.2 1.6
0.01
50
10
1
0.1
FIG.3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
T
J
=25℃
T
J
=125℃
──󰼿󰼿SR302-SR304
- - - SR305-SR3100
REVERSE VOLTAGE. VOLTS
JUNCTION CAPACITANCE(pF)
0.1 100101
10
1000
100
T
J
=25℃
f=1.0MHz
Vsig=50mVp-p
FIG.5-TYPICAL JUNCTION CAPACITANCE
PEAK FORWARD SURGE
CURRENT(AMPERES)
NUMBER OF CYCLES AT 60Hz
1 10010
0
40
30
20
10
50
FIG.2-MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
FIG.4-TYPICAL REVERSE CHARACTERISTICS
PERCENT OF RATED PEAK REVERSE VOLTAGE (%)
INSTANTANEOUS REVERSE CURRENT MILL (AMPERES)
0 10080604020
0.001
10
1
0.1
0.01
T
J
=75℃
T
J
=25℃
T
J
=125℃
FIG.6-TYPICAL TRANSIENT THERMAL IMPEDANCE
T, PULSE DURATION, sec.
TRANSIENT THERMAL IMPEDANCE,℃/ W
0.01 1001010.1
1
100
10
0.1
T
J
=T
J
MAX
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
──󰼿󰼿SR302-SR304
- - - SR305-SR3100
──󰼿󰼿SR302-SR304
- - - SR305-SR3100
──󰼿󰼿SR302-SR304
- - - SR305-SR3100