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SF51 THRU SF58
50V-600V
Soft Recovery Ultrafast Plastic Rectifier
5.0A
FEATURES
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Super fast switching speed
Glass passivated chip junction
Low power loss, high efficiency
Low leakage
High Surge Capacity
High temperature soldering guaranteed
260 /10 seconds, 0.375″(9.5mm) lead length
Mechanical Data
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Case: Transfer molded plastic
Epoxy: UL94V-0 rate flame retardant
Polarity: Color band denotes cathode end
Lead: Plated axial lead, solderable per MIL-STD-202E method 208C
Mounting position: Any
Weight: 0.042ounce, 1.19 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 ambient temperature unless otherwise specified
Single Phase, half wave, 60Hz, resistive or inductive load
For capacitive load derate current by 20%
SYMBOLS SF51 SF52
Maximum Repetitive Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
0.375 (9.5mm) lead length at TA=55
Peak Forward Surge Current
8.3mS single half sine wave superimposed on
rated load (JEDEC method)
Maximum Instantaneous Forward Voltage at 5.0A
Maximum DC Reverse Current
at rated DC blocking Voltage at
TA = 25
TA = 125
Maximum Reverse Recovery Time
Test conditions lF= 0.5A, lR= 1.0A, lRR=0.25A
Typical Junction Capacitance
(Measured at 1.0MHz and applied reverse voltage of 4.0V)
Typical Thermal Resistance (NOTE 1)
Operating Junction Temperature Range
Storage Temperature Range
VRRM
VRMS
VDC
50
35
50
SF53
SF54
SF55
SF56
SF57
SF58
UNIT
150
105
100
200
140
200
300
210
300
400
280
400
500
350
500
600
420
600
Volts
Volts
Volts
100
70
100
I(AV)
5.0
Amps
IFSM
125
Amps
VF
0.95
1.25
1.7
Volts
IR
5.0
50
µA
trr
35
nS
CJ
50
RθJA
TJ
TSTG
30
30
(-55 to +150)
(-55 to +150)
pF
/W
Notes:
1. Thermal Resistance from Junction to Ambient with 0.375″(9.5mm) lead length, PCB mounted.
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Web Site: www.taychipst.com
SF51 THRU SF58
50V-600V
Soft Recovery Ultrafast Plastic Rectifier
5.0A
RATING AND CHRACTERISTIC CURVES SF51 THRU SF58
FIG.1-TYPICAL FORWARD CURRENT
FIG.2-MAXIMUM NON-REPETITIVE PEAK
DERATING CURVE
FORWARD SURGE CURRENT
PEAK FORWARD SURGE
4.0
3.0
2.0
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
0.375″(9.5mm) Lead Length
1.0
150
CURRENT, (A)
5.0
(A)
AVERAGE FORWARD CURRENT,
6.0
8.3ms Single Half Sine-Wave
(JEDEC Method) T= T jmax
100
50
1 Cycle
0
0
25
50 55
100
75
175
150
125
10
1
AMBIENT TEMPERATURE, ( C)
2
4
FIG.3-TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
20
40
100
60
8G
-5
1.0
0.1
TJ =25 C
Pulse Width=300us
1% Duty Cycle
10
TJ =125 C
1.0
(μA)
SF
51
G54
G
SF
55
G
-5
6G
G
57
10
CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT,
(A)
INSTANTANEOUS FORWARD CURRENT,
SF
8
FIG.4-TYPICAL REVERSE
100
10
6
NUMBER OF CYCLES AT 60 Hz
0.1
TJ =25 C
0.01
0
20
40
60
80
120
100
140
PERCENT OF RATED PEAK
0.01
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
REVERSE VOLTAGE,(%)
INSTANTANEOUS FORWARD VOLTAGE,(V)
FIG.5-TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE,(pF)
100
F1G.6-TEST CIRCUIT DIAGRAM AND
REVERSE RECOVERY TIME CHARACTERISTIC
Trr
50Ω
10Ω
NONINDUCTIVE NONINDUCTIVE
+0.5A
(-)
10
(+)
25 Vdc
(approx.)
(-)
T J =25 C
f=1MHz
Vsig=50mVp-p
10
REVERSE VOLTAGE,(V)
E-mail: [email protected]
0
-0.25A
(+)
OSCILLOSCOPE
(NOTE 1)
-1.0A
1.0
1.0
1Ω
NON
INDUCTIVE
PULSE
GENERATIOR
(NOTE 2)
SF51G-SF54G
SF55G-SF58G
0.1
D.U.T.
100
NOTES : 1.Rise Time=7ns mas. Input Impedance=
1 magohm. 22pF
2.Rise time=10ns max. Source Impedance=
50 ohms
2 of 2
1cm
SET TIME BASE FOR
50/100ns/cm
Web Site: www.taychipst.com