SF31G THRU SF38G
1 / 4
Yangzhou Yangjie Electronic Technology Co., Ltd.
S-A157
Rev.2.1, 28-Apr-14
www.21yangjie.com
Super Fast Recovery Rectifier
Features
● Ultrafast reverse recovery time
● Low leakage current
● Low switching losses, high efficiency
● High forward surge capability
● Glass passivated chip junction
● Solder dip 275 °C max. 7 s, per JESD 22-B106
Typical Applications
For use in high frequency rectification and freewheeling
application in switching mode converters and inverters
for consumer, computer and telecommunication.
Mechanical Data
● Package: DO-201AD(DO-27)
Molding compound meets UL 94 V-0 flammability
rating, RoHS-compliant
● Terminals: Tin plated leads, solderable per
J-STD-002 and JESD22-B102
● Polarity: Color band denotes the cathode end
■Maximum Ratings (Ta=25℃ Unless otherwise specified）
PARAMETER
SYMBOL
UNIT
SF31G
SF32G
SF33G
SF35G
SF36G
SF37G
Device marking code
SF31G
SF32G
SF33G
SF35G
SF36G
SF37G
Repetitive Peak Reverse Voltage
VRRM
V
50
100
150
300
400
500
Average Forward Current
@60Hz sine wave, Resistance load, Ta =50℃
IF(AV)
A
3.0
Forward Surge Current(Non-repetitive)
@60Hz Half-sine wave, 1 cycle, Ta=25℃
IFSM
A
125
Storage Temperature
Tstg
℃
-55 ~+150
Junction Temperature
Tj
℃
-55~+150
■Electrical Characteristics（Ta=25℃ Unless otherwise specified）
PARAMETER
SYMBOL
UNIT
TEST CONDITIONS
SF31G
SF32G
SF33G
SF34G
SF35G
SF36G
SF37G
SF38G
Maximum instantaneous
forward voltage drop per diode
VF
V
IFM=3.0A
0.95
1.3
1.7
Maximum DC reverse current
at rated DC blocking voltage
per diode
IR
μA
Ta=25℃
5
Ta=100℃
150
Reverse Recovery time
trr
ns
IF=0.5A IR=1A
IRR=0.25A
35
Typical junction capacitance
Cj
pF
Measured at 1MHZ
and Applied Reverse
Voltage of 4.0 V.D.C.
60
40
COMPLIANT
RoHS
SF31G THRU SF38G
2 / 4
Yangzhou Yangjie Electronic Technology Co., Ltd.
S-A157
Rev.2.1, 28-Apr-14
www.21yangjie.com
■Thermal Characteristics （Ta=25℃ Unless otherwise specified）
PARAMETER
SYMBOL
UNIT
SF31G
SF32G
SF33G
SF34G
SF35G
SF36G
SF37G
SF38G
Thermal Resistance
RθJ-A
℃/W
30
■Ordering Information (Example)
PREFERED P/N
PACKAGE CODE
UNIT WEIGHT(g)
MINIMUM
PACKAGE(pcs)
INNER BOX
QUANTITY(pcs)
OUTER CARTON
QUANTITY(pcs)
DELIVERY MODE
SF31G~SF38G
D1
Approximate 1.05
1250
1250
12500
Tape
SF31G~SF38G
C1
Approximate 1.05
250
250
12500
Bulk
■ Characteristics(Typical)
Instantaneous Forward Current (A)
Instantaneous Forward Voltage (V)
FIG.3: Forward Voltage
TJ=25℃
Pulse width=300us
1% Duty Cycle
0.01
0.6 0.8 1.0 1.2 1.4
0.1
100
1.0
10
2.01.6 1.8
SF31G-SF34G SF35G-SF36G
SF37G-SF38G
Tj=100℃
Tj=25℃
0.001
0.01
020 40 60 80 100
0.1
1.0
10
100 FIG.4: Typical Reverse Characteristics
Percent of Rated Peak Reverse Voltage (%)
Instantaneous Reverse Current (uA)
Tj=125℃
Peak Forward Surge Current (A)
Number of Cycles
FIG.2: Forward Surge Current Capability
8.3ms Single Half Sine Wave
JEDEC Method
1 2 4 6 8 10 20 40 60 80 100
25
50
75
100
125
0
0
0.6
1.2
1.8
50 100 150
Single Phase
Half Wave 60HZ
Resistive or
Inductive Load
0.375''(9.5mm)
Lead Length
100
2.4
3.0
0
Average Forward Output Current (A)
Ambient Temperature (℃)
FIG.1: Io-Ta Curve
SF31G THRU SF38G
3 / 4
Yangzhou Yangjie Electronic Technology Co., Ltd.
S-A157
Rev.2.1, 28-Apr-14
www.21yangjie.com
■ Outline Dimensions
DO-201AD(DO-27)
Dim
Min
Max
A
8.50
9.50
B
5.00
5.60
C
25.4
/
D
1.20
1.30
0
trr
FIG.5: Diagram of circuit and Testing wave form of reverse recovery time
-0.25A
-1.0A
+0.5A
1cm SET TIME BASE FOR
5/10ns/cm
(-)
(+)
(-)
(+)
50Ω
NONINDUCTIVE 10Ω
NONINDUCTIVE
PULSE
GENERATOR
(NOTE2)
OSCILLOSCOPE
(NOTE1)
DUT
1Ω
NONINDUCTIV
NOTES:
1.Rise Time=7ns max .Inpot Impedance=1MΩ 22pf
2.Rise Time=10ns max.Sourse Impedance=50Ω
Dimensions in millimeters
DO-201AD(DO-27)
SF31G THRU SF38G
4 / 4
Yangzhou Yangjie Electronic Technology Co., Ltd.
S-A157
Rev.2.1, 28-Apr-14
www.21yangjie.com
Disclaimer
The information presented in this document is for reference only. Yangzhou Yangjie Electronic Technology Co., Ltd. reserves the
right to make changes without notice for the specification of the products displayed herein to improve reliability, function or design
or otherwise.
The product listed herein is designed to be used with ordinary electronic equipment or devices, and not designed to be used with
equipment or devices which require high level of reliability and the malfunction of with would directly endanger human life (such as
medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety
devices), Yangjie or anyone on its behalf, assumes no responsibility or liability for any damages resulting from such improper use
of sale.
This publication supersedes & replaces all information previously supplied. For additional information, please visit our website
http:// www.21yangjie.com , or consult your nearest Yangjie’s sales office for further assistance.