GLASS PASSIVATED SUPER FAST RECTIFIER
VOLTAGE RANGE 50 to 600 Volts CURRENT 5.0 Amperes
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
o
C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
SF51CK
THRU
SF57CK
MAXIMUM RATINGS
(@ T
A
=25
O
C unless otherwise noted)
ELECTRICAL CHARACTERISTICS
(@T
A
=25
O
C unless otherwise noted)
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: 0.33 grams
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
5.0
125
5.0
20
50
Amps
0
C/W
0
C
Operating and Storage Temperature Range
R
q
JL
R
q
JA
I
O
-55 to + 150
pF
Volts
30
100
300
150
SF51CK
SF53CK
SF55CK
SF52CK
SF54CK
200
400
SF56CK
50
100
300
150
200
400
50
70
210
105
140
280
35
600
SF57CK
600
420
NOTES : 1. Test Conditions: I
F
= 0.5A, I
R
= -1.0A, I
RR
= -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)"
2007-08
CHARACTERISTICS
at Rated DC Blocking Voltage
Maximum Reverse Recovery Time (Note 1)
V
F
SYMBOL
I
R
nSec
uAmps
Maximum DC Reverse Current
Maximum Instantaneous Forward Voltage at 2.5A DC
Volts
5.0
35
@T
A
= 100
o
C
@T
A
= 25
o
C
trr
0.95
1.25
100
50
UNITS
SF51CK
SF53CK
SF55CK
SF52CK
SF54CK
SF56CK SF57CK
1.50
Dimensions in inches and (millimeters)
D-PAK
.264 (6.7)
.248 (6.3)
.098 (2.5)
.083 (2.1)
.024 (0.6)
.016 (0.4)
.0
51
(1
.3
)
.0
35
(0
.9
)
.2
44
(6
.2
)
.2
28
(5
.8
)
.3
98
(1
0.
11
)
.3
82
(9
.7
1)
TY
P
1
.0
0
.217 (5.5)
.201 (5.1)
.031 (0.8)
.016 (0.4)
.183 (4.65)
TYP .091
(2.30)
TYP .020
(0.50)
.179 (4.55)
PIN 1
PIN 1
PIN 3
PIN 3
PIN 2
PIN 2
AMBIENT TEMPERATURE, (
O
C)
IN
ST
AN
TA
NE
O
US
R
EV
ER
SE
C
UR
RE
NT
, (
uA
)
25
5
0
0
4
3
2
1
75
50
175
100
125
150
RATING AND CHARACTERISTICS CURVES ( SF51CK THRU SF57CK )
FIG.2 TYPICAL FORWARD CURRENT
DERATING CURVE
FIG.1 TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
AV
ER
AG
E
FO
RW
AR
D
CU
RR
EN
T,
(A
)
0
1.0
0.1
100
1000
10
60
20
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 15/1 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
O
C
T
A
= 75
O
C
T
A
= 100
O
C
NUMBER OF CYCLES AT 60Hz
PE
AK
F
O
RW
AR
D
SU
RG
E
CU
RR
EN
T,
(A
)
INSTANTANEOUS FORWARD VOLTAGE, (V)
1
10
30
20
50
100
200
IN
ST
AN
TA
NE
O
US
F
O
RW
AR
D
CU
RR
EN
T,
(A
)
1.0
0.3
0.1
0.03
0.01
3.0
10
20
10
5
50
100
2.5
2.0
1.5
1.0
0.5
0
3.0
3.5
RATING AND CHARACTERISTICS CURVES ( SF51CK THRU SF57CK )
FIG.4 TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
FIG.5 MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
REVERSE VOLTAGE, (V)
JU
NC
TI
O
N
CA
PA
CI
TA
NC
E,
(p
F)
4
6
40
20
10
60
200
100
0.2
0.1
2
1
0.4
2
1.0
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
O
C
T
J
= 25
O
C
SF51CK~SF54CK
SF55CK~SF56CK
SF57CK
SF55CK~SF57CK
SF51CK~SF54CK
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specification herein, to make corrections, modifications, enhancements or other
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
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