31DF4 - 31DF6
3.0 AMPS. Super Fast Rectifiers
DO-201AD
Features
High efficiency, Low VF
High current capability
High reliability
High surge current capability
Low power loss.
Mechanical Data
Cases: Molded plastic
Epoxy: UL 94V-0 rate flame retardant
Lead: Pure tin plated, Lead free., solderable per
MIL-STD-202, Method 208 guaranteed
Polarity: Color band denotes cathode end
High temperature soldering guaranteed:
260
o
C/10 seconds/.375”,(9.5mm) lead
lengths at 5 lbs., (2.3kg) tension
Weight: 1.2 grams
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25
C
ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
o
Type Number
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
o
.375 (9.5mm) Lead Length @T
A
= 29 C
(Note 1)
@T
L
= 109
o
C
Peak Forward Surge Current, 8.3 ms Single
Half Sine-wave Superimposed on Rated Load
(JEDEC method )
Maximum Instantaneous Forward Voltage
@ 3.0A
Maximum DC Reverse Current @ T
A
=25
o
C
at Rated DC Blocking Voltage @ T
A
=125
o
C
Maximum Reverse Recovery Time (Note 3)
Typical Thermal Resistance ( Note 2 )
Operating Temperature Range
Symbol
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
I
R
Trr
R
θJA
T
J
T
STG
31DF4
400
280
400
1.2
3.0
31DF6
600
420
600
Units
V
V
V
A
A
V
uA
o
45
1.7
20
100
35
80
-40 to +150
-40 to +150
nS
C/W
o
C
o
C
Storage Temperature Range
Notes:
1. Without Fin or P.C.Board..
2. Thermal Resistance from Junction to Ambient .375” (9.5mm) Lead Length.
3. Reverse recovery Test Condition: Ta = 25℃, IFM=3A, di/dt = 50A / Us.
Version: A06
RATINGS AND CHARACTERISTIC CURVES (31DF4 THRU 31DF6)
AVERAGE FORWARD RECTIFIED CURRENT AMPERES
FIG.1- MAXIMUM FORWARD CURRENT DERATING
CURVE
4
FIG.2- TYPICAL FORWARD CHARACTERISTICS
100
30
3
INSTANTANEOUS FORWARD CURRENT. (A)
10
2
Single Phase
Half Wave 50 HZ
Inductive Load
0.375" (9.5mm)
Lead Length
3
1
1
0.3
0
0
25
50
75
100
O
125
150
175
0.1
LEAD TEMPERATURE. ( C)
FIG.3- MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
200
0.03
Tj=25 C
Pulse Width=300 s
1% Duty Cycle
1.5
1.6
1.7
1.8
1.9
2.0
2.1
O
PEAK FORWARD SURGE CURRENT. (A)
0.01
1.4
100
Tj=25
0
C
FORWARD VOLTAGE. (V)
50
40
30
20
8.3ms Single Half
Sine Wave
JEDEC Method
FIG.4- TYPICAL REVERSE CHARACTERISTICS
1000
10
NUMBER OF CYCLES AT 60 Hz
INSTANTANEOUS REVERSE CURRENT. ( A)
1
2
3
5
8
10
20
30
50
80
100
Tj=125
0
C
100
Tj=25
0
C
FIG.5- TYPICAL JUNCTION CAPACITANCE
180
160
JUNCTION CAPACITANCE.(pF)
10
140
Tj=25
0
C
120
100
80
60
40
0.1
1
0.5
1
2
5
10
20
50
100 200
500
1000
0.1
0
20
40
60
80
100
120
140
PERCENT OF RATED PEAK REVERSE VOLTAGE. (%)
REVERSE VOLTAGE. (V)
FIG.6- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50
NONINDUCTIVE
10
NONINDUCTIVE
+0.5A
DUT
(-)
PULSE
GENERATOR
(NOTE 2)
NON
INDUCTIVE
OSCILLOSCOPE
(NOTE 1)
(+)
0
-0.25A
trr
(+)
50Vdc
(approx)
(-)
NOTES: 1. Rise Time=7ns max. Input Impedance=
1 megohm 22pf
2. Rise Time=10ns max. Sourse Impedance=
50 ohms
-1.0A
1cm
SET TIME BASE FOR
5/ 10ns/ cm
Version: A06
Embedded System
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