Chip Silicon Rectifier
SFM21-L THRU SFM26-L
Super fast recovery type
Features
Plastic package has Underwriters Laboratory
Flammability Classification 94V-O Utilizing Flame
Retardant Epoxy Molding Compound.
For surface mounted applications.
Exceeds environmental standards of MIL-S-19500 /
228
Low leakage current.
Mechanical data
Case : Molded plastic, JEDEC DO-214AC
Terminals : Solder plated, solderable per MIL-STD-750,
Method 2026
Polarity : Indicated by cathode band
Mounting Position : Any
Weight : 0.0015 ounce, 0.05 gram
(V)
(V)
(V)
(V)
(nS)
(
o
C)
SFM21-L
S21
50
35
50
SFM22-L
S22
100
70
100
SFM23-L
S23
150
105
150
SFM24-L
S24
200
140
200
SFM25-L
S25
300
210
300
SFM26-L
S26
400
280
400
-55 to +150
Operating
temperature
V
RRM
*1
V
RMS
*2
V
R
*3
V
F
*4
T
RR
*5
SYMBOLS
MARKING
CODE
35
0.95
1.25
MAXIMUM RATINGS
(AT T
A
=25
o
C unless otherwise noted)
PARAMETER
CONDITIONS
Symbol
MIN.
TYP.
MAX.
UNIT
Forward rectified current
Ambient temperature = 50
o
C
I
O
2.0
A
Forward surge current
8.3ms single half sine-wave superimposed on
rate load (JEDEC methode)
I
FSM
50
A
V
R
= V
RRM
T
A
= 25
o
C
5.0
uA
V
R
= V
RRM
T
A
= 100
o
C
100
uA
Thermal resistance
Junction to ambient
R
JA
75
o
C / w
Diode junction capacitance
f=1MHz and applied 4vDC reverse voltage
C
J
10
pF
Storage temperature
T
STG
-55
+150
o
C
Reverse current
I
R
*1 Repetitive peak reverse voltage
*2 RMS voltage
*3 Continuous reverse voltage
*4 Maximum forward voltage
*5 Reverse recovery time
0.205(5.2)
0.189(4.8)
0.012(0.3) Typ.
0.110(2.8)
0.094(2.4)
0.181(4.6)
0.165(4.2)
0.075(1.9)
0.067(1.7)
0.024(0.60)
Dimensions in inches and (millimeters)
SMA-L
0.034(0.85)
0.024(0.60)
0.034(0.85)
.4
.6
.8
1.0
1.2
1.4
.001
.01
.1
1.0
10
RATING AND CHARACTERISTIC CURVES (SFM21-L THRU SFM26-L)
FIG.1-TYPICAL FORWARD
CHARACTERISTICS
FIG.5-TYPICAL JUNCTION CAPACITANCE
FORWARD VOLTAGE,(V)
Pulse Width 300us
1% Duty Cycle
(+)
(+)
25Vdc
(approx.)
( )
( )
PULSE
GENERATOR
(NOTE 2)
OSCILLISCOPE
(NOTE 1)
1
NON-
INDUCTIVE
NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF.
2. Rise Time= 10ns max., Source Impedance= 50 ohms.
+0.5A
0
-0.25A
-1.0A
|
|
|
|
|
|
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1cm
SET TIME BASE FOR
50 / 10ns / cm
trr
D.U.T.
FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTICS
10
NONINDUCTIVE
50
NONINDUCTIVE
Tj=25 C
FIG.2-TYPICAL FORWARD CURRENT
0.4
0.8
1.2
1.6
2.0
2.4
Single Phase
Half Wave 60Hz
Resistive Or Inductive Load
DERATING CURVE
AMBIENT TEMPERATURE ( C)
1.6
1.8
REVERSE VOLTAGE,(V)
70
60
50
40
30
20
10
0
.01
.05
.1
.5
1
5
10
50
100
0
25
50
75
100
125
150
175
0
FIG.4-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
10
0
20
30
40
50
NUMBER OF CYCLES AT 60Hz
1
10
5
50
100
Tj=25 C
8.3ms Single Half
Sine Wave
JEDEC method
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