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OUTLINE DRAWING








Maximum Ratings Apporox Net Weight:1.19g
Rating Symbol 31DF2 Unit
Repetitive Peak Reverse Voltage VRRM 200 V
Non-repetitive Peak Reverse Voltage VRSM 220 V
1.6 Ta=40°C ∗1
Average Rectified Output Current IO
3.0 Ta=40°C ∗2
50Hz Half Sine
Wave Resistive Load
A
RMS Forward Current IF(RMS) 4.71
Surge Forward Current IFSM 60
50Hz Half Sine Wave,1cycle,
Non-repetitive
A
Operating JunctionTemperature Range Tjw - 40 to + 150 °C
Storage Temperature Range Tstg - 40 to + 150 °C

Electrical/Thermal • Characteristics
Characteristics Symbol Conditions Min. Typ. Max. Unit
Peak Reverse Current IRM Tj= 25°C, VRM= VRRM - - 10 µA
Peak Forward Voltage VFM Tj= 25°C, IFM= 3 A - - 0.98 V
Reverse Recovery Time trr Ta= 25°C, IFM=3 A –di/dt=50A/µs 30 ns
∗1:Without Fin. 80 Thermal Resistance
(Junction to Ambient)
Rth(j-a)
∗2:With Fin
- -
34
°C/W
∗1: Without Fin or P.C. Board
∗2: With Fin:20x20x1t(mm):Copper plates, L=5mm, Both Sides














FRD Type: 31DF231DF231DF2
FEATURES
* Ultra – Fast Recovery
* Low Forward Voltage Drop
* Low Power Loss, High Efficiency
* High Surge Capability
* 200 Volts thru 600 Volts Types Available