SF21 THRU SF28
2.0AMPS. SUPER FAST RECTIFIER
FEATURE
.High
current capability
.Low
forward voltage drop
.Low
power loss, high efficiency
.High
surge capability
.High
temperature soldering guaranteed
260°C /10sec/ 0.375" lead length at 5 lbs tension
.Super
fast recovery time for high efficiency.
DO-15
1. 25.
0( 4)
MI .
N
.
300( 6)
7.
.
230( 8)
5.
1. 25.
0( 4)
MI .
N
.
140( 6)
3.
DI
A.
.
104( 6)
2.
+
MECHANICAL DATA
.Terminal:
Plated axial leads solderable per
MIL-STD 202E, method 208C
.Case:
Molded with UL-94 Class V-0 recognized
Flame Retardant Epoxy
.Polarity:
color band denotes cathode
.Mounting
position: any
Ratings at 25℃ ambient temperature unless otherwise specified.
Single phase, half wave, 60Hz,resistive or inductive load.
For capacitive load, derate current by 20%
-
.
034( 9)
0.
DI
A.
.
028( 7)
0.
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Type Number
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC blocking Voltage
Maximum Average Forward Rectified Current
.375"(9.5mm) lead length at T
A
=55°C
Peak Forward Surge Current 8.3ms single half
sine-wave superimposed on rated load (JEDEC
method)
Maximum Instantaneous forward Voltage at
2.0A DC
Maximum DC Reverse Current
at rated DC blocking voltage
@T
A
=25°C
@T
A
=100°C
SYM
BOL
SF
21
50
35
50
SF
22
100
70
100
SF
23
150
105
150
SF
24
200
140
200
2.0
SF
25
300
210
300
SF
26
400
280
400
SF
27
500
350
500
SF
28
600
420
600
units
V
V
V
A
V
RRM
V
RMS
V
DC
I
F(AV)
I
FSM
V
F
I
R
t
rr
C
J
R
(JA)
T
STG
T
J
60.0
A
0.95
5.0
100.0
35
60
75
-55 to +150
-55 to +150
1.3
1.7
V
µA
nS
Maximum Reverse Recovery Time (Note 1)
Typical Junction Capacitance (Note 2)
Typical Thermal Resistance (Note 3)
Storage Temperature
Operation JunctionTemperature
30
pF
°C/W
°C
°C
Note:
1. Test Conditions: I
F
=0.5A, I
R
=1.0A, I
RR
=0.25A
2. Measured at 1.0 MHz and applied reverse voltage of 4.0Vdc
3. Thermal Resistance from Junction to Ambient at 0.375"（9.5mm）lead length, vertical P.C.Board Mounted.
- 415 -
RATING AND CHARACTERISTIC CURVES (SF21 THRU SF28)
FIG.1-TYPICAL FORWARD CURRENT
DERATING CURVE
2.0
FIG.2-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
AVERGE FORWARD
RECTIFIED CURRENT,(A)
INSTANEOUS FORWARD
CURRENT,(A)
50
V-
20
0V
V
0V
00
60
0-
0-4
30
50
1.0
Single Phase Half
Wave 60Hz
Resistive or
inductive Load
TJ=25
℃
Pulse Width=300
μ
s
1% Duty Cycle
1.0
4
8
2.2
AMBIENT TEMPERTURE,(
℃
)
FIG.3-MAXIMUN NON-REPETITIVE
FORWARD SURGE CURRENT
80
8.3ms Single Half
Sine-Wave (JEDEC
Method)
INSTANEOUS FORWARD VOLTAGE,(V)
FIG.4-TYPICAL REVERSE
CHARACTERISTICS
PEAK FORWARD SURGE
CURRENT,(A)
60
40
INSTANEOUS REVERSE
CURRENT,(
μ
A)
TJ=25
℃
20
NUMBER OF CYCLES AT 60Hz
PERCENT OF RATED PEAK REVERSE
VOLTAGE,(%)
FIG.5-TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERSITIC
50
Ω
NONINDUCTIVE
10
Ω
NONINDUCTIVE
(+)
25Vdc
(approx)
(-)
(+)
1
Ω
(NOTE 1)
NON- OSCILOSCOPE
INDUCTIVE
PULSE
GENERATOR
(NOTE 2)
(-)
NOTES:1.
Rise Time=7ns max, Input
Impedance= 1 megohm.22pF.
2. Rise Time=10ns max,
Souce Impedance= 50 ohms.
- 416 -
Microcontroller MCU
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