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31DF2.....31DF4
3 Amp. Glass Passivated Ultrafast Recovery Rectifier
Dimensions in mm. DO-201AD (Plastic)
Voltage 200 to 400 V
Current 3 A at 40 C.
(R)
9.1 0.3
62.5 0.5
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.
* Glass Passivated Junction * High current capability * The plastic material carries U/L recognition 94 V-0 * Terminals: Axial Leads * Polarity: Color band denotes cathode
Maximum Ratings, according to IEC publication No. 134
31DF2 VRRM IF(AV) IFRM IFSM trr Tj Tstg Peak Recurrent reverse voltage Forward current at Tamb = 40 C Recurrent peak forward current 8.3 ms. peak forward surge current
(Jedec Method)
31DF4 400 V 3A 15 A 90 A 30 ns - 65 to + 150 C - 65 to + 150 C
200 V
Reverse recovery time from IF = 0.5 A ; IR = 1 A ; IRR = 0.25 A Operating temperature range Storage temperature range
Electrical Characteristics at Tamb = 25 C
VF IR Rthj-a Max. forward voltage drop at IF = 3 A Max. reverse current at VRRM at 25 C 0.98 V 10 A 30 C/W 1.25 V
Max. thermal resistance ( l = 10 mm.)
Jul - 03
31DF2.....31DF4
Rating And Characteristic Curves
FORWARD CURRENT DERATING CURVE 5
10 mm. - 10 mm.
TYPICAL FORWARD CHARACTERISTIC 10 2
4 10
31DF2
31DF4
3 1 2 10-1 1
T j = 25 C
0 0 25 50 75 100 125 150 175 Tamb, ambient temperature (C)
10-2 0.2
F
0.6
1.0
1.4
1.8
2.2
2.6
3.0
V , instantaneous forward voltage (V)
100
MAXIMUM NON REPETITIVE PEAK FORWARD SURGE CURRENT
80
60
40
20
0 1 2 4 6 10 20 40 60 100 Number of cycles at 60 Hz.
Jul - 03

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