GLASS PASSIVATED SUPER FAST RECTIFIER
VOLTAGE RANGE 50 to 600 Volts CURRENT 2.0 Ampere
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 oC ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
SF21
THRU
SF27
MAXIMUM RATINGS
(@ TA=25
OC unless otherwise noted)
ELECTRICAL CHARACTERISTICS
(@TA=25
OC unless otherwise noted)
Dimensions in inches and (millimeters)
FEATURES
* High reliability
* Low leakage
* Low forward voltage
* High current capability
* Super fast switching speed
* High surge capability
* Good for switching mode circuit
MECHANICAL DATA
* Case: Molded plastic
* Epoxy: Device has UL flammability classification 94V-O
* Lead: MIL-STD-202E method 208C guaranteed
* Mounting position: Any
* Weight: 0.35 gram
RATINGS
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
at T
A
= 55
o
C
Peak Forward Surge Current 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
Typical Thermal Resistance (Note 3)
Typical Junction Capacitance (Note 2)
SYMBOL
V
RRM
V
DC
I
FSM
C
J
T
J
, T
STG
V
RMS
UNITS
Volts
Volts
Amps
2.0
75
15
40
50
Amps
0
C/W
0
C
Operating and Storage Temperature Range
RqJL
RqJA
I
O
-55 to + 150
pF
Volts
30
100 300150
SF21 SF23 SF25SF22 SF24
200 400
SF26
50
100 300150 200 40050
70 210105 140 28035
600
SF27
600
420
NOTES : 1. Test Conditions: IF = 0.5A, IR = -1.0A, IRR = -0.25A
2. Measured at 1 MHz and applied reverse voltage of 4.0 volts.
3. Typical Thermal Resistance : At 9.5mm lead lengths,PCB mounted.
4. "Fully ROHS complaint", "100% Sn plating (Pb-free)"
2006-12
CHARACTERISTICS
at Rated DC Blocking Voltage
Maximum Reverse Recovery Time (Note 1)
V
F
SYMBOL
I
R
nSec
mAmps
Maximum DC Reverse Current
Maximum Instantaneous Forward Voltage at 2.0A DC Volts
2.0
35
@T
A
= 100
o
C
@T
A
= 25
o
C
trr
0.95 1.25
100
50
UNITS
SF21 SF23 SF25
SF22 SF24 SF26 SF27
1.50
DO-15
1.0 (25.4)
MIN.
.230 (5.8)
.300 (7.6)
1.0 (25.4)
MIN.
.140 (3.6)
.104 (2.6) DIA.
.034 (0.9)
.028 (0.7) DIA.
AMBIENT TEMPERATURE, (OC)
INSTANTANEOUS REVERSE CURRENT, (mA)
25
2.5
00
2
1.5
1
0.5
7550 175100 125 150
RATING AND CHARACTERISTICS CURVES ( SF21 THRU SF27 )
FIG.2 TYPICAL FORWARD CURRENT
DERATING CURVE
FIG.1 TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
AVERAGE FORWARD CURRENT, (A)
0
1.0
0.1
100
1000
10
6020 40 80 100 120 140
FIG.3 TYPICAL REVERSE
CHARACTERISTICS
trr
+0.5A
50 W
NONINDUCTIVE
10 W
NONINDUCTIVE
0
-0.25A
-1.0A
1cm
SET TIME BASE FOR 50/100 ns/cm
NOTES:
1 Rise Time = 7ns max. Input Impedance =
1 megohm. 22pF.
2. Rise Time = 10ns max. Source Impedance =
50 ohms.
D.U.T
25 Vdc
(approx)
( - )
( - )
( + )
( + )
1
NON-
INDUCTIVE
OSCILLOSCOPE
(NOTE 1)
PULSE
GENERATOR
(NOTE 2)
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
T
A
= 25 OC
T
A
= 75 OC
T
A
= 100 OC
NUMBER OF CYCLES AT 60Hz
PEAK FORWARD SURGE CURRENT, (A)
INSTANTANEOUS FORWARD VOLTAGE, (V)
1
10
30
20
50
100
200
INSTANTANEOUS FORWARD CURRENT, (A)
1.0
0.3
0.1
0.03
0.01
3.0
10
20
105 50 100
2.52.01.51.00.50 3.0 3.5
RATING AND CHARACTERISTICS CURVES ( SF21 THRU SF27 )
FIG.4 TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
FIG.5 MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
REVERSE VOLTAGE, (V)
JUNCTION CAPACITANCE, (pF)
4
6
40
20
10
60
200
100
0.20.1
2
10.4 21.0 4 10 20 40 100
FIG.6 TYPICAL JUNCTION CAPACITANCE
8.3ms Single Half Sine-Wave
(JEDED Method)
Pulse Width=300uS
1% Duty Cycle
T
J
= 25 OC
T
J
= 25
O
C
SF21~SF24
SF25~SF26
SF27
SF25~SF27
SF21~SF24
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changes. Rectron Inc or anyone on its behalf assumes no responsibility or liabi-
lity for any errors or inaccuracies. Data sheet specifications and its information
contained are intended to provide a product description only. "Typical" paramet-
ers which may be included on RECTRON data sheets and/ or specifications ca-
n and do vary in different applications and actual performance may vary over ti-
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