Chip Super Fast Rectifiers Rectifier
SFM31-B THRU SFM38-B
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
2010/03/10
Revision
D
Page.
7
Page 1
DS-121409
Chip Super Fast Rectifiers Rectifier
SFM31-B THRU SFM38-B
3.0A Surface Mount Super
Fast Rectifiers-50-600V
Features
•
Batch process design, excellent power dissipation offers
better reverse leakage current and thermal resistance.
Formosa MS
SMB
0.213(5.4)
0.197(5.0)
Package outline
•
Low profile surface mounted application in order to
•
•
•
•
•
•
optimize board space.
High current capability.
Superfast recovery time 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. SFM31-B-H.
0.016(0.4) Typ.
0.142(3.6)
0.126(3.2)
Mechanical data
•
Epoxy:UL94-V0 rated flame retardant
•
Case : Molded plastic, DO-214AA / SMB
•
Terminals : Solder plated, solderable per
MIL-STD-750, Method 2026
0.075(1.9)
0.067(1.7)
0.032(0.8) Typ.
0.032 (0.8) Typ.
•
Polarity : Indicated by cathode band
•
Mounting Position : Any
•
Weight : Approximated 0.09 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 C unless otherwise noted)
Symbol
I
O
I
FSM
I
R
C
J
T
STG
-65
45
+175
MIN.
TYP.
MAX.
3.0
100
5.0
100
uA
pF
O
o
UNIT
A
A
8.3ms single half sine-wave superimposed on
rate load (JEDEC methode)
V
R
= V
RRM
T
J
= 25 C
V
R
= V
RRM
T
J
= 125 C
f=1MHz and applied 4V DC reverse voltage
O
O
Reverse current
Diode junction capacitance
Storage temperature
*1
V
RRM
(V)
50
100
150
200
300
400
500
600
V
RMS
*2
(V)
35
70
105
140
210
280
350
420
C
SYMBOLS
SFM31-B
SFM32-B
SFM33-B
SFM34-B
SFM35-B
SFM36-B
SFM37-B
SFM38-B
*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
=3.0A
*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
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Document ID
Issued Date
2008/02/10
Revised Date
2010/03/10
Revision
D
Page.
7
Page 2
DS-121409
Rating and characteristic curves (SFM31-B THRU SFM38-B)
FIG.1-TYPICAL FORWARD
CHARACTERISTICS
AVERAGE FORWARD CURRENT,(A)
FIG.2-TYPICAL FORWARD CURRENT
DERATING CURVE
3.6
3.0
2.4
1.8
1.2
0.6
0
0
10
34
-B
FM
1-B
~S
INSTANTANEOUS FORWARD CURRENT,(A)
M3
-B
~S
FM
36
-B
SF
SF
SF
M
37
-B
~S
FM
3.0
35
M
38
-B
P.C.B. Mounted on
0.2"x0.2" (5.0 mm x 5.0 mm)
Copper Pad Areas
25
50
75
100
125
150
175
.3
T
J
=25 C
Pulse Width 300us
1% Duty Cycle
LEAD TEMPERATURE (°C)
.03
FIG.4-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
PEAK FORWARD SURGE CURRENT,(A)
100
.003
.4
.6
.8
1.0
1.2
1.4
1.6
1.8
80
FORWARD VOLTAGE,(V)
FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTICS
50
W
NONINDUCTIVE
10
W
NONINDUCTIVE
60
T
J
=25 C
8.3ms Single Half
Sine Wave
JEDEC method
40
20
(+)
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
1000
TJ
=
25°C
f
=
1
.
0
M
HZ
trr
+0.5A
|
|
|
|
|
|
|
|
0
-0.25A
JUNCTION CAPACITANCE,(pF)
50 / 10ns / cm
100
-1.0A
1cm
SET TIME BASE FOR
10
0
.
1
1
.
0
4
.
0
10
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
2010/03/10
Revision
D
Page.
7
Page 3
DS-121409
Chip Super Fast Rectifiers Rectifier
SFM31-B THRU SFM38-B
Pinning information
Pin
Pin1
Pin2
cathode
anode
Simplified outline
Formosa MS
Symbol
1
2
1
2
Marking
Type number
SFM31-B
SFM32-B
SFM33-B
SFM34-B
SFM35-B
SFM36-B
SFM37-B
SFM38-B
Marking code
S31
S32
S33
S34
S35
S36
S37
S38
Suggested solder pad layout
C
A
B
Dimensions in inches and (millimeters)
PACKAGE
SMB
A
0.142 (3.60)
B
0.059 (1.50)
C
0.118 (3.00)
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Document ID
Issued Date
2008/02/10
Revised Date
2010/03/10
Revision
D
Page.
7
Page 4
DS-121409
Chip Super Fast Rectifiers Rectifier
SFM31-B THRU SFM38-B
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
SMB
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
3.81
5.74
2.24
1.50
330.00
50.00
178.00
62.00
13.00
1.75
5.50
8.00
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
2010/03/10
Revision
D
Page.
7
Page 5
DS-121409