SF21G-SF28G
2.0 AMP. Glass Passivated Super Fast Rectifiers
DO-41
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
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 oC ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
Type Number
Symbol SF SF SF SF SF SF SF SF 21G 22G 23G 24G 25G 26G 27G 28G
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current .375(9.5mm) Lead Length @ TA=55 oC Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method )
VRRM VRMS VDC
50 100 150 200 300 400 500 600 35 70 105 140 210 280 350 420 50 100 150 200 300 400 500 600
I(AV)
2.0
IFSM
50
Maximum Instantaneous Forward Voltage
@ 2.0A Maximum DC Reverse Current @ TA=25 oC at Rated DC Blocking Voltage @ TA=125 oC
VF IR
0.95
1.3
5.0 100
1.7
Maximum Reverse Recovery Time (Note 1)
Trr
35
Typical Junction Capacitance (Note 2)
Cj
40
20
Typical Thermal Resistance
RθJA
65
Operating Temperature Range
TJ
-65 to +150
Storage Temperature Range
TSTG
-65 to +150
Notes:
1. Reverse Recovery Test Conditions: IF=0.5A, IR=1.0A, IRR=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.
Units
V V V
A
A
V uA uA nS pF oC/W oC oC
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mail:
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SF21G-SF28G
2.0 AMP. Glass Passivated Super Fast Rectifiers
RATINGS AND CHARACTERISTIC CURVES (SF21G THRU SF28G)
FIG.1- MAXIMUM AVERAGE FORWARD CURRENT
DERATING
3.0
FIG.2- TYPICAL REVERSE CHARACTERISTICS
1000
INSTANTANEOUS REVERSE CURRENT. ( A)
AVERAGE FORWARD CURRENT. (A)
2.5
2.0
1.5
Single Phase Half Wave 60Hz 1.0 Resistive or Inductive Load 0.5 0.375" (9.5mm) Lead Length
0 0 25 50 75 100 125 150 175 AMBIENT TEMPERATURE. (OC)
FIG.3- MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT
60
50
40
8.3ms Single Half Sine Wave JEDEC Method
30
100 Tj=1250C
10 Tj=750C
1 Tj=250C
0.1 0
20 40 60 80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE. (%)
PEAK FORWARD SURGE CURRENT. (A)
20 FIG.5- TYPICAL FORWARD CHARACTERISTICS
10 100
JUNCTION CAPACITANCE.(pF)
0 12
5 10
20
NUMBER OF CYCLES AT 60Hz
FIG.4- TYPICAL JUNCTION CAPACITANCE
150
50
100
125
100 75
50 25 0
0.1
SF21G~SF24G SF25G~SF28G
Tj=250C
0.5 1 2
5 10 20 50 100 200 500 1000
REVERSE VOLTAGE. (V)
INSTANTANEOUS FORWARD CURRENT. (A)
10 SF21G~SFS2F4G25G~SF26G 1 SF27G~SF28G
0.1
Tj=25oC Pulse Width=300 s 1% Duty Cycle 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 FORWARD VOLTAGE. (V)
FIG.6- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50 NONINDUCTIVE
10 NONINDUCTIVE
(+) 50Vdc (approx) (-)
DUT
OSCILLOSCOPE
NON
(NOTE 1)
INDUCTIVE
(-)
PULSE GENERATOR (NOTE 2)
(+)
+0.5A
0 -0.25A
trr
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
http://www.luguang.cn
mail:
[email protected]
.