Document
Axial Lead Super Fast Rectifiers
P b Lead(Pb)-Free
Features:
* Low forward voltage drop. * High current capability. * High reliability. * High surge current capability.
SF21 thru SF28
REVERSE VOLTAGE 50 TO 600 VOLTS CURRENT 2.0 AMPERE
Mechanical Data:
* Case: Molded plastic. * Epoxy: UL 94V-0 rate ame retardant. * Lead: Axial leads, solderable per MIL-STD-202,
method 208 guranteed. * Polarity: Color band denotes cathode end. * Mounting position: Any. * Weight: 0.40 grams.
DO-15 Outline Dimensions
Axial Device (Through-Hole)
AB C
DO-15
Unit:mm
D E
Dim DO-15
A
Min Max
25.4
-
B Min Max
5.8 7.6
C
Min Max
25.4
-
D Min Max
0.7 0.9
E Min Max
2.6 3.6
WEITRON
http://www.weitron.com.tw
1/3
Rev.A 04-Aug-09
SF21 thru SF28
Maximum Ratings and Electrical Characteristics
Rating 25°C Ambient Temperature Unless Otherwise Speci ed. Single Phase Half Wave, 60Hz, Recti ed or Inductive Load. For Capacitive Load, Derate Current By 20%.
Characteristics
Symbol SF21 SF22 SF23 SF24 SF25 SF26 SF27 SF28 Unit
Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage
VRRM 50 100 150 200 300 400 500 600 VRMS 35 70 105 140 210 280 350 420 VDC 50 100 150 200 300 400 500 600
V V V
Maximum Average Forward Rectified Current .375”(9.5mm) Lead Length @TA = 55°C
IF(AV)
2.0
A
Peak Forward Surge Current, 8.3 ms Single Half Sine-Wave Superimposed on Rated Load (JEDEC)
IFSM
50
A
Maximum Instantaneous Forward Voltage At 2.0A
VF
0.97
1.25
1.50 V
Maximum DC Reverse Current @TA = 25°C At Rated DC BlockingVoltage @TA= 100°C Typical Junction Capacitance (Note 1)
IR CJ
5.0 50
60
Maximum Reverse Recovery Time (Note 2)
Trr
35
Operating Temperature Range
TJ
+150
Storage Temperature Range
TSTG
-65 to +150
NOTES: 1. Measured At 1MHz and Applied Reverse Voltage of 4.0 V.D.C 2. Reverse Recovery Time Test Condition: IF=0.5A, IR= 1.0A, IRR= 0.25A
μA
pF nS °C °C
WEITRON
http://www.weitron.com.tw
2/3 Rev.A 04-Aug-09
SF21 thru SF28
RATINGAND CHARACTERISTIC CURVES
50 NONINDUCTIVE
10 NONINDUCTIVE
+0.5A
(+)
25Vdc (approx.)
()
D.U.T.
1 NONINDUCTIVE
OSCILLISCOPE (NOTE 1)
()
PULSE GENERATOR
(NOTE 2)
(+)
0 -0.25A
trr
| | | | | | | |
NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF. 2. Rise Time= 10ns max., Source Impedance= 50 ohms.
FIG.1 TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY
-1.0A 1cm
SET TIME BASE FOR 50 / 10ns / cm
TIME CHARACTERISTIC
AVERAGE FORWARD CURRENT (A)
2.4
2.0
1.6
1.2 Single Phase Half Wave 60Hz
0.8 Resistive Or Inductive Load 0.375"(9.5mm) Lead Length
0.4
0 0 25
50 75 100 125 150 175
AMBIENT TEMPERATURE,( C)
FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE
50 50
10 10 3.0 3.0 1.0 1.0 Tj=100°C
Tj=25 C
Tj=25°C
0.1
Pulse Width 300us 1% Duty Cycle
0.1
REVERSE LEAKAGE CURRENT (A)
INSTANTANEOUS FORWARD CURRENT (A) SF21~SF24 SF25~SF26 SF27~SF28
PEAK FORWARD SURGECURRENT (A)
0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 FORWARD VOLTAGE,(V)
FIG.3 TYPICAL FORWARD CHARACTERISTICS
100
80
60
Tj=25°C
8.3ms Single Half
40 Sine Wave
JEDEC method
20
0
1
5 10
50 100
NUMBER OF CYCLES AT 60Hz
FIG.5 MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT
JUNCTION CAPACITANCE (pF)
0.01 0 20 40 60 80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE (%)
FIG.4 TYPICAL REVERSE CHARACTERISTICS
175
150 125 100
75
50
25
0 0.01
0.05 0.1
0.5 1
5 10 50 100
REVERSE VOLTAGE,(V) FIG.6 TYPICAL JUNCTION CAPACITANCE
WEITRON
3/3 Rev.A 04-Aug-09
http://www.weitron.com.tw
.