SF21G - SF28G
2.0 AMPS. Glass Passivated Super Fast Rectifiers
DO-15
Features
High efficiency, low VF
High current capability
High reliability
High surge current capability
Low power loss.
For use in low voltage, high frequency inventor, free
wheeling, and polarity protection application
Mechanical Data
Case: 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
High temperature soldering guaranteed:
o
260 C/10 seconds/.375”,(9.5mm) lead
lengths at 5 lbs., (2.3kg) tension
Mounting position: Any
Weight: 0.40 gram
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25
o
C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
Symbol SF SF SF SF
Type Number
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified
Current .375(9.5mm) Lead Length
@ T
A
=55
o
C
Peak Forward Surge Current, 8.3 ms Single
Half Sine-wave Superimposed on Rated
Load (JEDEC method )
Maximum Instantaneous Forward Voltage
@ 2.0A
Maximum DC Reverse Current @ T
A
=25
o
C
at Rated DC Blocking Voltage @ T
A
=125
o
C
Maximum Reverse Recovery Time (Note 1)
Typical Junction Capacitance (Note 2)
Typical Thermal Resistance
Operating Temperature Range
Storage Temperature Range
Notes:
SF SF SF SF
Units
21G 22G 23G 24G 25G 26G 27G 28G
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
I
R
Trr
Cj
R
θJA
T
J
50 100 150 200 300 400 500 600
35 70 105 140 210 280 350 420
50 100 150 200 300 400 500 600
2.0
50
0.95
5.0
100
35
40
65
-65 to +150
-65 to +150
20
o
V
V
V
A
A
1.3
1.7
V
uA
uA
nS
pF
C/W
o
o
T
STG
1. Reverse Recovery Test Conditions: I
F
=0.5A, I
R
=1.0A, I
RR
=0.25A
2. Measured at 1 MHz and Applied Reverse Voltage of 4.0 V D.C.
3. Mount on Cu-Pad Size 10mm x 10mm on PCB.
C
C
Version: A06
RATINGS AND CHARACTERISTIC CURVES (SF21G THRU SF28G)
FIG.1- MAXIMUM AVERAGE FORWARD CURRENT
DERATING
3.0
FIG.2- TYPICAL REVERSE CHARACTERISTICS
1000
AVERAGE FORWARD CURRENT. (A)
2.5
INSTANTANEOUS REVERSE CURRENT. ( A)
2.0
100
Tj=125
0
C
1.5
1.0
0.5
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
0.375" (9.5mm)
Lead Length
0
25
50
75
100
125
O
10
Tj=75
0
C
0
150
175
AMBIENT TEMPERATURE. ( C)
1
Tj=25
0
C
FIG.3- MAXIMUM NON-REPETITIVE FORWARD SURGE
CURRENT
60
PEAK FORWARD SURGE CURRENT. (A)
50
0.1
0
8.3ms Single Half Sine Wave
JEDEC Method
20
40
60
80
100
120
140
PERCENT OF RATED PEAK REVERSE VOLTAGE. (%)
40
30
20
FIG.5- TYPICAL FORWARD CHARACTERISTICS
100
10
0
1
2
5
10
20
50
100
NUMBER OF CYCLES AT 60Hz
INSTANTANEOUS FORWARD CURRENT. (A)
10
FIG.4- TYPICAL JUNCTION CAPACITANCE
150
SF
21
S
G~
4G
F2
SF
26
G
SF
1
2
~
5G
JUNCTION CAPACITANCE.(pF)
125
2
SF
~
7G
SF
28
G
100
75
50
25
0
0.1
SF
21
G~
SF
24
G
SF
25G
~S
F28
G
Tj=25
0
C
0.1
Tj=25
o
C
Pulse Width=300 s
1% Duty Cycle
0.5
1
2
5
10
20
50
100 200
500
1000
0.01
0.4
0.6
REVERSE VOLTAGE. (V)
0.8
1.0
1.2
1.4
FORWARD VOLTAGE. (V)
1.6
1.8
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
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