WTE SF22, SF21-T3, SF21-TB, SF22-T3, SF22-TB Datasheet
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WTE
POWER SEMICONDUCTORS
SF21 – SF27
2.0A SUPER-FAST RECTIFIER
Features
!
Diffused Junction
!
Low Forward Voltage Drop
!
High Current Capability A B A
!
High Reliability
!
High Surge Current Capability
Mechanical Data
!
Case: Molded Plastic D
!
Terminals: Plated Leads Solderable per
MIL-STD-202, Method 208
!
Polarity: Cathode Band
!
Weight: 0.40 grams (approx.)
!
Mounting Position: Any
!
Marking: Type Number
Maximum Ratings and Electrical Characteristics
Single Phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Characteristic Symbol SF21 SF22 SF23 SF24 SF25 SF26 SF27 Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage V
Average Rectified Output Current
(Note 1) @T
Non-Repetitive Peak Forward Surge Current 8.3ms
Single half sine-wave superimposed on rated load
(JEDEC Method)
Forward Voltage @IF = 2.0A V
= 55°C
A
RRM
V
RWM
V
R
V
R(RMS)
O
I
FSM
I
FM
50 100 150 200 300 400 600 V
35 70 105 140 210 280 420 V
Dim Min Max
A
B
C
D
All Dimensions in mm
@TA=25°C unless otherwise specified
0.95 1.3 1.7 V
DO-15
25.4 —
5.50 7.62
0.71 0.864
2.60 3.60
2.0 A
50 A
C
Peak Reverse Current @TA = 25°C
At Rated DC Blocking Voltage @T
Reverse Recovery Time (Note 2) t
Typical Junction Capacitance (Note 3) C
Operating Temperature Range T
Storage Temperature Range T
= 100°C
A
I
RM
rr
STG
j
j
60 30 pF
5.0
100
35 nS
-65 to +125 °C
-65 to +150 °C
µA
*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.
SF21 – SF27 1 of 3 © 2002 Won-Top Electronics
2.5
10
(AV)
I , AVERAGE FWD RECTIFIED CURRENT (A)
2.0
1.5
1.0
0.5
Single phase half-wave
60 Hz resistive or inductive load
0
25 50
T , AMBIENT TEMPERATURE ( C)
Fig. 1 Forward Current Derating Curve
60
40
SF21-SF24
SF25 - SF26
2.0
1.0
SF27
T = 25 C
°
F
I , INSTANTANEOUS FORWARD CURRENT (A)
0.01
75
100 125 150 175 200
A
°
0.6 0.8 1.0 1.2 1.4
V , INSTANTANEOUS FORWARD VOLTAGE (V)
F
j
Pulse width = 300 sµ
Fig. 2 Typical Forward Characteristics
100
SF21-SF24
SF25 -SF27
T = 25 C
°
j
f = 1.0MHz
20
FSM
I , PEAK FORWARD SURGE CURRENT (A)
0
1 10 100
NUMBER OF CYCLES AT 60Hz
Fig. 3 Peak Forward Surge Current
50 NI (Non-inductive)Ω
Device
Under
Test
10 NIΩ
(+)
50V DC
Approx
(-)
1.0
Ω
Oscilloscope
NI
(Note 1)
(-)
Pulse
Generator
(Note 2)
(+)
10
j
C , CAPACITANCE (pF)
1
1 10 100
V , REVERSE VOLTAGE (V)
R
Fig. 4 Typical Junction Capacitance
t
rr
+0.5A
0A
-0.25A
Notes:
1. Rise Time = 7.0ns max. Input Impedance = 1.0M , 22pF.
2. Rise Time = 10ns max. Input Impedance = 50 .
Ω
Ω
-1.0A
Settimebasefor5/10ns/cm
Fig. 5 Reverse Recovery Time Characteristic and Test Circuit
SF21 – SF27 2 of 3 © 2002 Won-Top Electronics
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