WEJ ELECTRONIC CO.,LTD
Fast recovery type
Features
Plastic package has Underwriters Laboratory
Flammability Classification 94V-O Utilizing Flame
Retardant Epoxy Molding Compound.
For surface mounted applications.
Exceeds environmental standards of MIL-S-19500 /
228
Low leakage current.
Mechanical data
Case : Molded plastic, JEDEC DO-214AB
Terminals : Solder plated, solderable per MIL-STD-750,
Method 2026
Polarity : Indicated by c athode band
Mounting Position : Any
Weight : 0.00585 ounce, 0.195 gram
(V) (V) (V) (V) (nS)
(
o
C)
FFM301 F31 50 35 50
FFM302 F32 100 70 100
FFM303 F33 200 140 200
FFM304 F34 400 280 400
FFM305 F35 600 420 600 250
FFM306 F36 800 560 800
FFM307 F37 1000 700 1000
SYMBOLS
MARKING
CODE
1.3 -55 to +150
Operating
temperature
V
RRM
*1
V
RMS
*2
V
R
*3
V
F
*4
T
RR
*5
500
150
MAXIMUM RATINGS (AT T
A
=25
o
C unless otherwise noted)
PARAMETER CONDITIONS Symbol MIN. TYP. MAX. UNIT
Forward rectified current Ambient temperature = 55
o
C I
O
3.0 A
Forward surge current
8.3ms single half sine-wave superimposed on
rate load (JEDEC methode)
I
FSM
100 A
V
R
= V
RRM
T
A
= 25
o
C 10.0 uA
V
R
= V
RRM
T
A
= 100
o
C 300 uA
Thermal resistance Junction to ambient Rq
JA
50
o
C / w
Diode junction capacitance f=1MHz and applied 4vDC reverse voltage C
J
60 pF
Storage temperature T
STG
-55 +150
o
C
Reverse current I
R
*1 Repetitive peak reverse voltage
*2 RMS voltage
*3 Continuous reverse voltage
*4 Maximum forward voltage
*5 Reverse recovery time
0.276(7.0)
0.260(6.6)
0.012(0.3) Typ.
0.189(4.8)
0.173(4.4)
0.244(6.2)
0.228(5.8)
0.087(2.2)
0.071(1.8)
0.040 (1.0) Typ.0.040(1.0) Typ.
Dimensions in inches and (millimeters)
SMC
0.152(3.8)
0.144(3.6)
0.032(0.8) Typ.
F31-F37
Http:// www .wej.cn E-mail:wej@yongerjia.com
WEJ ELECTRONIC CO.
RoHS
WEJ ELECTRONIC CO.,LTD
0.1
1.0
.01
50
RATING AND CHARACTERISTIC CURVES (FFM301 THRU FFM307)
FIG.1-TYPICAL FORWARD
CHARACTERISTICS
FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE
AVERAGE FORWARD CURRENT,(A)
FIG.5-TYPICAL JUNCTION CAPACITANCE
REVERSE VOLTAGE,(V)
JUNCTION CAPACITANCE,(pF)
INSTANTANEOUS FORWARD CURRENT,(A)
FORWARD VOLTAGE,(V)
Pulse Width 300us
1% Duty Cycle
0.6
1.2
1.8
2.4
3.0
3.6
70
60
50
40
30
20
10
0
(+)
(+)
25Vdc
(approx.)
( )
( )
PULSE
GENERATOR
(NOTE 2)
OSCILLISCOPE
(NOTE 1)
1
NON-
INDUCTIVE
W
NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF.
2. Rise Time= 10ns max., Source Impedance= 50 ohms.
+0.5A
0
-0.25A
-1.0A
|
|
|
|
|
|
|
|
1cm
SET TIME BASE FOR
50 / 10ns / cm
trr
.01 .05 .1 .5 1 5 10 50 100
D.U.T.
.6 .8 1.0 1.2 1.4 1.6 1.8 2.0
3.0
AMBIENT TEMPERATURE ( C)
FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTICS
10
NONINDUCTIVE
50
NONINDUCTIVE
W
W
Tj=25 C
FIG.4-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
PEAK FORWAARD SURGE CURRENT,(A)
20
0
40
60
80
100
NUMBER OF CYCLES AT 60Hz
1 10 5
50
100
Tj=25 C
8.3ms Single Half
Sine Wave
JEDEC method
Single Phase
Half Wave 60Hz
Resistive Or Inductive Load
0 20 40 60 80 100 120 140 160 180 200
0
10
F31-F37
Http:// www .wej.cn E-mail:wej@yongerjia.com
WEJ ELECTRONIC CO.
RoHS