SF21 THRU SF27
Features
· Low forward voltage drop
· High current capability
· High reliability
· High surge current capability
· Super fast recovery time
· Good for use in switching mode circuits
· Plastic package has Underwrites Laboratory Flammability
Classification 94V-0
CURRENT 2.0 Amperes
VOLTAGE 50 to 600 Volts
DO-15
0.140(3.6)
0.104(2.6)
DIA.
1.0(25.4)
MIN.
Mechanical Data
· Case : JEDEC DO-15 molded plastic body
· Terminals : Plated axial lead solderable per MIL-STD-750,
method 2026
· Polarity : Color band denotes cathode end
· Mounting Position : Any
· Weight : 0.014 ounce, 0.40 gram
0.300(7.6)
0.230(5.8)
0.034(0.9)
0.028(0.7)
DIA.
1.0(25.4)
MIN.
Dimensions in inches and (millimeters)
Maximum Ratings And Electrical Characteristics
(Ratings at 25℃ ambient temperature unless otherwise specified, Single phase, half wave 60Hz, resistive or inductive
load. For capacitive load, derate by 20%)
Symbols
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current
0.375"(9.5mm) lead length at T
A
=55℃
Peak forward surge current 8.3ms single
half sine-wave superimposed on rated load
(JEDEC method)
Maximum instantaneous forward voltage
at 2.0A
Maximum DC reverse
current at rated DC
blocking voltage
T
A
=25℃
T
A
=100℃
Trr
C
J
T
J
T
STG
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
I
R
SF21
50
35
50
SF22
100
70
100
SF23
150
105
150
SF24
200
140
200
2.0
50
SF25
300
210
300
SF26
400
280
400
SF27
600
420
600
Units
Volts
Volts
Volts
Amps
Amps
0.95
5.0
100
35
60
-55 to +125
-55 to +150
1.30
1.70
Volts
μA
ns
30
pF
℃
Maximum reverse recovery time (Note 1)
Typical junction capacitance (Note 2)
Operating junction and storage
temperature range
Notes:
(1) Test conditions: I
F
=0.5A, I
R
=1.0A, I
rr
=0.25A.
(2) Measured at 1MHz and applied reverse voltage of 4.0 Volts.
RATINGS AND CHARACTERISTIC CURVES SF21 THRU SF27
NONINDUCTIVE
AVERAGE FORWARD CURRENT . (A )
50
FIG . 1 -REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
100
NONINDUCTIVE
+0.5A
trr
FIG . 2 -MAXIMUM AVERAGE FORWARD
CURRENT DERATING
3.0
2.5
2.0
1.5
1.0
0.5
0
SINGLE PHASE
HALF WAVE 60Hz
RESISTIVE OR
INDUCTIVE LOAD
0.375"(9.5m m)
LEAD LENGTH
(+ )
DUT
50Vdc
(approx)
(-)
NONINDUCTIVE
OSCILLOSCOPE
(NOTE 2 )
PULSE
GENERATOR
(NOTE 2 )
0
-0.5A
NOTES: 1 . RISE TIME = 7nsmax. INPUT
IMPEDANCE= 1 MEGOHM 22p
2 . RISE
TIME = 10ns max.SOURSE
IMPEDANCE = 50ohmsf
FIG . 3 -TYPICAL REVERSE CHARACTERISTICS
1000
A
)
-1.0A
1cm
SET TIME BASE FOR
5/ 10ns / cm
AMBIENT TEMPERATURE . (
O
C)
25
50
75
100125 150 175
FIG . 4 -TYPICAL REVERSE CHARACTERISTICS
100.0
INSTANTANEOUS FORWARD CURRENT. (A)
INSTAN TANEO US REVER SE CURRE T . (
100
Tj=100 C
O
10.0
F
SF
21
24
SF
25
F
-S
SF
26
-S
10
1.0
27
Tj=25 C
O
1
0.1
Tj=25
o
C
Pulse Width=300 s
1% Duty Cycle
.6
.8
1.0
1.2
1.4
1.6
1.8
.1
0
20
40
60
80
100
120
.01
.4
PERCENT OF RA
TED PEAK REVERSE VOL
TAGE . (% )
FIG . 5 - MAXIMUM NON- REPETITIVE FORWARD SUREG
CURRENT
60
50
40
30
20
10
0
1
2
5
10
20
50
100
FORWARD VOLTAGE . ( V )
FIG . 6 - TYPICAL JUNCTION CAPACITANCE
150
JUNCTION CARACTIANCE . (pF)
125
100
75
50
25
0
.1
.5
1
2
5
10 20
50
100 200 500 1000
PEAK FORWARD SURGE CURRENT . (A)
8.3ms Single Half Sine
Wave JEDEC Method
SF
SF
21
25
-S
-S
F
2
4
F
2
7
Tj=25
O
C
NUMBER OF CYCLES AT 60Hz
REVERSE VOLTAGE . ( V)
Microcontroller MCU
京公网安备 11010802033920号
EEWORLD
