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 instructions1. 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 voltageForward current at Tamb = 40 °C
Recurrent peak forward current8.3 ms. peak forward surge current
VRRMIF(AV)
IFRMIFSM 3 A15 A90 A
TjTstg Operating temperature rangeStorage temperature range – 65 to + 150 °C– 65 to + 150 °C
Electrical Characteristics at Tamb = 25 °CVF Max. forward voltage drop at IF = 3 A
IR 10 µAMax. reverse current at VRRM
trr Reverse recovery time from 30 ns
31DF4400 V
IF = 0.5 A ; IR = 1 A ; IRR = 0.25 A
Rthj-a Max. thermal resistance ( l = 10 mm.) 30 °C/W
Voltage200 to 400 V Current3 A at 40 ºC.
at 25 ºC
(Jedec Method)
9.1 ± 0.362.5 ± 0.5 ®
1.25 V
Jul - 03
31DF2200 V
0.98 V