Chip Super Fast Rectifiers Rectifier
SFM21 THRU SFM28
List
Formosa MS
List................................................................................................. 1
Package outline............................................................................... 2
Features.......................................................................................... 2
Mechanical data............................................................................... 2
Maximum ratings ............................................................................. 2
Rating and characteristic curves........................................................ 3
Pinning information........................................................................... 4
Marking........................................................................................... 4
Suggested solder pad layout............................................................. 4
Packing information.......................................................................... 5
Reel packing.................................................................................... 6
Suggested thermal profiles for soldering processes............................. 6
High reliability test capabilities........................................................... 7
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Document ID
Issued Date
2008/02/10
Revised Date
2011/11/18
Revision
F
Page.
7
Page 1
DS-121404
Chip Super Fast Rectifiers Rectifier
SFM21 THRU SFM28
2.0A Surface Mount Super
Fast Rectifiers-50-600V
Features
•
Batch process design, excellent power dissipation offers
•
•
•
•
•
•
•
better reverse leakage current and thermal resistance.
Low profile surface mounted application in order to
optimize board space.
High current capability.
Superfast recovery tim for switching mode application.
High surge current capability.
Glass passivated chip junction.
Lead-free parts meet RoHS requirments.
Suffix "-H" indicates Halogen free parts, ex. SFM21-H.
Formosa MS
Package outline
SMA
0.196(4.9)
0.180(4.5)
0.012(0.3) Typ.
0.106(2.7)
0.091(2.3)
Mechanical data
•
Epoxy:UL94-V0 rated flame retardant
•
Case : Molded plastic, JEDEC DO-214AC / SMA
•
Terminals : Solder plated, solderable per
MIL-STD-750, Method 2026
0.068(1.7)
0.060(1.5)
0.032(0.8) Typ.
0.032 (0.8) Typ.
•
Polarity : Indicated by cathode band
•
Mounting Position : Any
•
Weight : Approximated 0.05 gram
Dimensions in inches and (millimeters)
Maximum ratings and Electrical Characteristics
(AT
PARAMETER
Forward rectified current
Forward surge current
See Fig.2
CONDITIONS
T
A
=25
o
C unless otherwise noted)
Symbol
I
O
I
FSM
I
R
R
θJA
R
θJC
C
J
T
STG
-65
40
24
25
+175
MIN.
TYP.
MAX.
2.0
50
5.0
100
O
UNIT
A
A
8.3ms single half sine-wave (JEDEC methode)
V
R
= V
RRM
T
J
= 25
O
C
V
R
= V
RRM
T
J
= 125 C
Junction to ambient
, note 2
Junction to case, note 2
f=1MHz and applied 4V DC reverse voltage
O
Reverse current
Typical thermal resistance
Diode junction capacitance
Storage temperature
µA
C/W
pF
O
C
SYMBOLS
SFM21
SFM22
SFM23
SFM24
SFM25
SFM26
SFM27
SFM28
*1
V
RRM
(V)
50
100
150
200
300
400
500
600
V
RMS
*2
(V)
35
70
105
140
210
280
350
420
*3
V
R
(V)
50
100
150
200
300
400
500
600
*4
V
F
(V)
*5
t
rr
(ns)
Operating
temperature
T
J
, (
O
C)
*1 Repetitive peak reverse voltage
*2 RMS voltage
0.95
*3 Continuous reverse voltage
35
1.25
1.70
-55 to +150
*4 Maximum forward voltage@I
F
=2.0A
*5 Maximum Reverse recovery time, note 1
Note 1. Reverse recovery time test condition, I
F
=0.5A, I
R
=1.0A, I
RR
=0.25A
2. Mounted on 2.8 mm x 1.6 mm PCB
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Document ID
Issued Date
2008/02/10
Revised Date
2011/11/18
Revision
F
Page.
7
Page 2
DS-121404
Rating and characteristic curves (SFM21 THRU SFM28)
FIG.1-TYPICAL FORWARD
CHARACTERISTICS
10
AVERAGE FORWARD CURRENT,(A)
FIG.2-TYPICAL FORWARD CURRENT
DERATING CURVE
2
.
8
2.4
2
.
0
1
.
6
1
.
2
.8
.4
0
0
20
40
60
80
100
120
140
160
180
P.C.B. Mounted on
2.8 mm x 1.6 mm
Copper Pad Areas
24
1~
S
INSTANTANEOUS FORWARD CURRENT,(A)
SF
M2
SF
M2
5~
S
FM
26
FM
.1
T
J
=25 C
Pulse Width 300us
1% Duty Cycle
SF
M2
7~
1.0
SF
M2
8
LEAD TEMPERATURE (°C)
FIG.4-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
PEAK FORWARD SURGE CURRENT,(A)
50
.01
.001
.4
.6
.8
1.0
1.2
1.4
1.6
1.8
40
FORWARD VOLTAGE,(V)
FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTICS
50
W
NONINDUCTIVE
10
W
NONINDUCTIVE
30
T
J
=25 C
8.3ms Single Half
Sine Wave
JEDEC method
20
10
(+)
25Vdc
(approx.)
( )
1
W
NON-
INDUCTIVE
OSCILLISCOPE
(NOTE 1)
D.U.T.
( )
PULSE
GENERATOR
(NOTE 2)
(+)
0
1
5
10
50
100
NUMBER OF CYCLES AT 60Hz
NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF.
2. Rise Time= 10ns max., Source Impedance= 50 ohms.
FIG.5-TYPICAL JUNCTION CAPACITANCE
70
trr
+0.5A
|
|
|
|
|
|
|
|
JUNCTION CAPACITANCE,(pF)
60
50
40
30
20
10
0
-0.25A
-1.0A
1cm
SET TIME BASE FOR
50 / 10ns / cm
0
.01
.05
.1
.5
1
5
10
50
100
REVERSE VOLTAGE,(V)
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Document ID
Issued Date
2008/02/10
Revised Date
2011/11/18
Revision
F
Page.
7
Page 3
DS-121404
Chip Super Fast Rectifiers Rectifier
SFM21 THRU SFM28
Pinning information
Pin
Pin1
Pin2
cathode
anode
Simplified outline
Formosa MS
Symbol
1
2
1
2
Marking
Type number
SFM21
SFM22
SFM23
SFM24
SFM25
SFM26
SFM27
SFM28
Marking code
S21
S22
S23
S24
S25
S26
S27
S28
Suggested solder pad layout
C
A
B
Dimensions in inches and (millimeters)
PACKAGE
SMA
A
0.110 (2.80)
B
0.063 (1.60)
C
0.087 (2.20)
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Document ID
Issued Date
2008/02/10
Revised Date
2011/11/18
Revision
F
Page.
7
Page 4
DS-121404
Chip Super Fast Rectifiers Rectifier
SFM21 THRU SFM28
Packing information
P
0
P
1
d
E
F
B
W
Formosa MS
A
P
D
2
T
C
D
W
1
D
1
unit:mm
Item
Symbol
Tolerance
SMA
Carrier width
Carrier length
Carrier depth
Sprocket hole
13" Reel outside diameter
13" Reel inner diameter
7" Reel outside diameter
7" Reel inner diameter
Feed hole diameter
Sprocket hole position
Punch hole position
Punch hole pitch
Sprocket hole pitch
Embossment center
Overall tape thickness
Tape width
Reel width
A
B
C
d
D
D
1
D
D
1
D
2
E
F
P
P
0
P
1
T
W
W
1
0.1
0.1
0.1
0.1
2.0
min
2.0
min
0.5
0.1
0.1
0.1
0.1
0.1
0.1
0.3
1.0
2.80
5.00
1.90
1.50
330.00
50.00
178.00
62.00
13.00
1.75
5.50
4.00
4.00
2.00
0.23
12.00
18.00
Note:Devices are packed in accor dance with EIA standar RS-481-A and specifications listed above.
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Document ID
Issued Date
2008/02/10
Revised Date
2011/11/18
Revision
F
Page.
7
Page 5
DS-121404
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