31DF2.....31DF4
3 Amp. Glass Passivated Ultrafast Recovery Rectifier
• Glass Passivated Junction
• High current capability
• The plastic material carries
U/L recognition 94 V-0
• Terminals: Axial Leads
• Polarity: Color band denotes cathode
Mounting instructions
1. Min. distance from body to soldering point,
4 mm.
2. Max. solder temperature, 350 °C.
3. Max. soldering time, 3.5 sec.
4. Do not bend lead at a point closer than
3 mm. to the body.
Dimensions in mm. DO-201AD
(Plastic)
Maximum Ratings, according to IEC publication No. 134
Peak Recurrent reverse voltage
Forward current at Tamb = 40 °C
Recurrent peak forward current
8.3 ms. peak forward surge current
V
RRM
I
F(AV)
I
FRM
I
FSM
3 A
15 A
90 A
T
j
T
stg
Operating temperature range
Storage temperature range
– 65 to + 150 °C
– 65 to + 150 °C
Electrical Characteristics at Tamb = 25 °C
V
F
Max. forward voltage drop at I
F
= 3 A
I
R
10 µA
Max. reverse current at V
RRM
t
rr
Reverse recovery time from 30 ns
31DF4
400 V
I
F
= 0.5 A ; I
R
= 1 A ; I
RR
= 0.25 A
R
thj-a
Max. thermal resistance ( l = 10 mm.) 30 °C/W
Voltage
200 to 400 V
Current
3 A at 40 ºC.
at 25 ºC
(Jedec Method)
9.1 ± 0.3
62.5 ± 0.5
®
1.25 V
Jul - 03
31DF2
200 V
0.98 V
Rating And Characteristic Curves
FORWARD CURRENT DERATING CURVE TYPICAL FORWARD CHARACTERISTIC
Tamb, ambient temperature (C)
10 mm. - 10 mm.
0 50 175
0
25 75 150125100
T = 25 ºC
j
MAXIMUM NON REPETITIVE
PEAK FORWARD SURGE CURRENT
40
20
0
1
Number of cycles at 60 Hz.
60
1
2
3
4
0.2 0.6 1.0 1.4 1.8 2.6 3.0
10 2
1
10
-1
10
-2
10
2 4 6 10 100604020
100
80
V , instantaneous forward voltage (V)
F
2.2
5
31DF2.....31DF4
Jul - 03
31DF2 31DF4
