SF31 SF37
1 of 3 2002 Won-Top Electronics
SF31 SF37
3.0A SUPER-FAST RECTIFIER
Features
!
Diffused
Junction
!
Low Forward Voltage Drop
!
High Current Capability A B A
!
High
Reliability
!
High Surge Current Capability
Mechanical Data
C
!
Case: Molded Plastic D
!
Terminals: Plated Leads Solderable per
MIL-STD-202, Method 208
!
Polarity:
Cathode
Band
!
Weight: 1.2 grams (approx.)
!
Mounting
Position:
Any
!
Marking: Type Number
Maximum Ratings and Electrical Characteristics
@T
A
=25C unless otherwise specified
Single Phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Characteristic
Symbol
SF31
SF32
SF33
SF34
SF35
SF36
SF37
Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
V
RRM
V
RWM
V
R
50
100
150
200
300
400
600
V
RMS Reverse Voltage
V
R(RMS)
35
70
105
140
210
280
420
V
Average Rectified Output Current
(Note 1) @T
A
= 50C
I
O
3.0
A
Non-Repetitive Peak Forward Surge Current 8.3ms
Single half sine-wave superimposed on rated load
(JEDEC Method)
I
FSM
125
A
Forward Voltage @I
F
= 3.0A
V
FM
0.95
1.3
1.7
V
Peak Reverse Current @T
A
= 25C
At Rated DC Blocking Voltage @T
A
= 100C
I
RM
5.0
100
A
Reverse Recovery Time (Note 2)
t
rr
35
nS
Typical Junction Capacitance (Note 3)
C
j
100
80
pF
Operating Temperature Range
T
j
-65 to +125
C
Storage Temperature Range
T
STG
-65 to +150
C
*Glass passivated forms are available upon request
Note: 1. Leads maintained at ambient temperature at a distance of 9.5mm from the case
2. Measured with IF = 0.5A, IR = 1.0A, IRR = 0.25A. See figure 5.
3. Measured at 1.0 MHz and applied reverse voltage of 4.0V D.C.
WTE
POWER SEMICONDUCTORS
DO-201AD
Dim
Min
Max
A
25.4
--
B
8.50
9.50
C
1.20
1.30
D
5.0
5.60
All Dimensions in mm
SF31
SF37 2 of 3 2002 Won-Top Electronics
0.01
0.1
1.0
10
100
0.6
1.0
1.4
1.8
T = 25 C
j
Pulse width = 300 s
2% duty cycle
V , INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
F
I
,
INST
ANT
ANEOUS
FOR
W
ARD
CURRENT
(A)
F
10
100
200
1
10
100
I
,
PEAK
FOR
W
ARD
SURGE
CURRENT
(A)
FSM
NUMBER OF CYCLES AT 60Hz
Fig. 3 Peak Forward Surge Current
8.3ms single half
sine-wave
50V DC
Approx
50
NI (Non-inductive)
10
NI
1.0
NI
Oscilloscope
(Note 1)
Pulse
Generator
(Note 2)
Device
Under
Test
t
rr
Set time base for 5/10ns/cm
+0.5A
0A
-0.25A
-1.0A
Notes:
1. Rise Time = 7.0ns max. Input Impedance = 1.0M , 22pF.
2. Rise Time = 10ns max. Input Impedance = 50 .
Fig. 5 Reverse Recovery Time Characteristic and Test Circuit
(+)
(+)
(-)
(-)
1
0
10
0
100
0
1
10
100
C
,
CAP
ACIT
ANCE
(pF)
j
V , REVERSE VOLTAGE (V)
Fig. 4 Typical Junction Capacitance
R
0
1
2
3
4
0
25
50
75
100
125
150
175
I
,
A
VERAGE
FWD
RECTIFIED
CURRENT
(A)
(A
V)
T , AMBIENT TEMPERATURE ( C)
Fig. 1 Forward Current Derating Curve
A
Single phase half wave
Resistive or Inductive load
SF31 - SF34
SF31 - SF34
SF35 - SF36
SF37
SF35 - SF37
SF31 SF37
3 of 3 2002 Won-Top Electronics
ORDERING INFORMATION
Product No.
!
!
!
!
Package Type
Shipping Quantity
SF31-T3
DO-201AD
1200/Tape & Reel
SF31-TB
DO-201AD
1200/Tape & Box
SF31
DO-201AD
500 Units/Box
SF32-T3
DO-201AD
1200/Tape & Reel
SF32-TB
DO-201AD
1200/Tape & Box
SF32
DO-201AD
500 Units/Box
SF33-T3
DO-201AD
1200/Tape & Reel
SF33-TB
DO-201AD
1200/Tape & Box
SF33
DO-201AD
500 Units/Box
SF34-T3
DO-201AD
1200/Tape & Reel
SF34-TB
DO-201AD
1200/Tape & Box
SF34
DO-201AD
500 Units/Box
SF35-T3
DO-201AD
1200/Tape & Reel
SF35-TB
DO-201AD
1200/Tape & Box
SF35
DO-201AD
500 Units/Box
SF36-T3
DO-201AD
1200/Tape & Reel
SF36-TB
DO-201AD
1200/Tape & Box
SF36
DO-201AD
500 Units/Box
SF37-T3
DO-201AD
1200/Tape & Reel
SF37-TB
DO-201AD
1200/Tape & Box
SF37
DO-201AD
500 Units/Box
Products listed in bold are WTE Preferred devices.
!
T3 suffix refers to a 13" reel. TB suffix refers to Ammo Pack.
Shipping quantity given is for minimum packing quantity only. For minimum order
quantity, please consult the Sales Department.
Won-Top Electronics Co., Ltd (WTE) has checked all information carefully and believes it to be correct and accurate. However, WTE cannot assume any
responsibility for inaccuracies. Furthermore, this information does not give the purchaser of semiconductor devices any license under patent rights to
manufacturer. WTE reserves the right to change any or all information herein without further notice.
WARNING: DO NOT USE IN LIFE SUPPORT EQUIPMENT. WTE power semiconductor products are not authorized for use as critical components in life
support devices or systems without the express written approval.
We power your everyday.
Won-Top Electronics Co., Ltd.
No. 44 Yu Kang North 3rd Road, Chine Chen Dist., Kaohsiung, Taiwan
Phone: 886-7-822-5408 or 886-7-822-5410
Fax: 886-7-822-5417
Email: sales@wontop.com
Internet: http://www.wontop.com
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