Diode Ultra Fast Features: High efficiency, low V F High current capability High reliability High surge current capability Low power loss Specifications: Mechanical Data: Cases : Moulded plastic Lead : Pure tin plated, lead free, solderable per MIL-STD-202, Method 208 guaranteed Polarity : Colour band denotes cathode end High temperature soldering guaranteed : 260C/10 seconds/0.375, (9.5mm) lead lengths at 5lbs., (2.3kg) tension Weight : 1.2g Maximum Ratings and Electrical Characteristics Rating at 25C ambient temperature unless otherwise specified. Single phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. Type Number Symbol 31DF4 31DF6 Units Maximum Recurrent Peak Reverse Voltage 400 600 V rrm Maximum RMS Voltage V 280 420 V rms Maximum DC Blocking Voltage V 400 600 dc Maximum Average Forward Rectified Current 1.2 0.375 (9.5mm) Lead Length at T = 29C I a (va ) 3 (Note 1) T = 109C l A Peak Forward Surge Current, 8.3ms Single Half Sine-wave Superimposed on Rated I 45 fsm Load (JEDEC method) Maximum Instantaneous Forward Voltage V 1.7 V f at 3A Maximum DC Reverse Current at T = 25C 20 a I A r 100 at Rated DC Blocking Voltage at T = 125C a Note 1. Without Fin or PC Board. www.element14.com www.farnell.com www.newark.com Page <1> 08/02/13 V1.0Diode Ultra Fast Type Number Symbol 31DF4 31DF6 Units Maximum Reverse Recovery Time (Note 3) T 35 nS rr Typical Thermal Resistance ( Note 2 ) R 80 C/W JA Operating Temperature Range T j -40 to +150 C Storage Temperature Range T stg Note 2. Thermal Resistance from Junction to Ambient 0.375 (9.5mm) Lead Length. Note 3. Reverse recovery Test Condition: T = 25C, I = 3A, di/dt = 50A/Us. FM a Ratings and Characteristic Curves (31DF4, 31DF6) www.element14.com www.farnell.com www.newark.com Page <2> 08/02/13 V1.0