Document
2.0 Amp Glass Passivated Super Fast Rectifiers - 50~600Volts DO-15 Package
SF21G THRU SF28G
Features Glass Passivated Chip Low Forward Voltage High Current Capability High reliability Super Fast Switching Speed High Surge Current Capability Moisture Sensitivity Level 1 RoHS product for packing code suffix “G”
Halogen free product for packing code suffix “H”
Mechanical Date Case: Molded Plastic, DO-15 Epoxy: UL 94V-0 Rate Flame Retardant Lead: Solderable per MIL-STD-202,
method 208 guaranteed Polarity: Color band denotes cathode end Mounting Position: Any Weight: 0.015 ounce, 0.38 gram (Approximate)
DO-15
.034(0.90) .028(0.70)
1.00(25.4)MIN.
.300(7.63) .230(5.80)
.142(3.61) .102(2.60)
1.00(25.4)MIN.
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRONICAL CHARACTERISTICS
Ratings at 25℃ ambient temperature unless otherwise specified. Single phase half wave, 60Hz, resistive of inductive load.
For capacitive load, derate current by 20%
RATINGS Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage Maximum Average Forward rectifier Current 0.375” (9.5mm) Lead length at Ta = 55℃
SYMBOLS SF21G
VRRM
50
VRMS
35
VDC 50
IF(AV)
Peak Forward Surge Current 8.3 ms single half sine-wave superimposed on rated load (JEDEC method)
IFSM
Maximum Instantaneous Forward Voltage at 2.0A DC
Maximum DC Reverse Current at
@ Ta=25℃
Rated DC Blocking Voltage
@ Ta=100℃
VF IR
Maximum Reverse Recovery Time (Note 1)
TRR
Typical Thermal Resistance (Note 3)
Typical Junction Capacitance(Note 2) Operating and Storage Temperature Range
RθJA RθJL CJ TJ ,TSTG
SF22G 100 70 100
SF23G 150 105 150
SF24G 200 140 200
SF25G 300 210 300
SF26G 400 280 400
2.0
50
0.95
1.30
5.0
100
35
45
18
35 25
-55 ~ 150
SF28G 600 420 600
1.75
UNITS Volts Volts Volts Amps
Amps Volts
μA
ns ℃/W
pF ℃
Notes: 1. Test Conditions: IF = 0.5A, IR = -1.0A, IRR = -0.25A 2. Measured at 1MHz and applied reverse voltage of 4.0VDC. 3. Typical Thermal Resistance: At 9.5mm lead lengths, PCB mounted.
2013-01
WILLAS ELEECTRONIC CORP.
2.0 Amp Glass Passivated Super Fast Rectifiers - 50~600Volts DO-15 Package
RATING AND CHARACTERISTICS CURVES
SF21G THRU SF28G
AVERAGE FORWARD CURRENT, (A)
50 Θ NONINDUCTIVE
10 Θ NONINDUCTIVE
+0.5A
trr
2.5 2.0
(+)
25 Vdc (approx)
(-)
D.U.T 1 NONINDUCTIVE
(-) PULSE GENERATOR (NOTE 2)
0 -0.25A
OSCILLOSCOPE (NOTE 1)
(+)
NOTES: 1 Rise Time = 7ns max. Input Impedance = 1 megohm. 22pF.
2. Rise Time = 10ns max. Source Impedance = 50 ohms.
-1.0A
1cm SET TIME BASE FOR 50/100 ns/cm
FIG.1 TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
1.5
1.0
0.5 0 0
Single Phase Half Wave 60Hz Resistive or Inductive Load
25 50
75
100 125 150 175
AMBIENT TEMPERATURE, ( OC)
FIG.2 TYPICAL FORWARD CURRENT DERATING CURVE
INSTANTANEOUS FORWARD CURRENT, (A)
INSTANTANEOUS REVERSE CURRENT, (µA)
100
TA = 100 OC 10
TA = 75 OC 1.0
0.1 TA = 25 OC
0.01 0 20
40 60 80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
FIG.3 TYPICAL REVERSE CHARACTERISTICS
20 10
TJ = 25 OC 3.0
1.0 SF28G
0.3 SF25G~SF26G
0.1
S F 2 1 G ~ S F 2 4G
0.03 Pulse Width=300uS 1% Duty Cycle
0.01 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
INSTANTANEOUS FORWARD VOLTAGE, (V)
FIG.4 TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS
PEAK FORWARD SURGE CURRENT, (A)
200 8.3ms Single Half Sine-Wave (JEDED Method)
100
50 30 20
101
5 10
50 100
NUMBER OF CYCLES AT 60Hz
FIG.5 MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT
JUNCTION CAPACITANCE, (pF)
200 O
100 TJ = 25 C
60 SF21G~SF24G 40
20
10 SF25G~SF28G
6 4
2
1 0.1 0.2 0.4
1.0 2 4
10 20 40 100
REVERSE VOLTAGE, (V)
FIG.6 TYPICAL JUNCTION CAPACITANCE
2013-01
WILLAS ELEECTRONIC CORP.
.