2.0 Amp SMD SUPER FAST RECTIFIERS UFS21 . . . 26 Series Data Sheet Mechanical Dimensions Description 4.06/4.60 3.30/3.90 Cathode Package SMB 5.10/5/58 .11/.30 1.65/2.19 1.91/2.41 .01/.20 1.90/2.15 Features n HIGH SURGE CAPABILITY n HIGH CURRENT CAPABILITY n LOW FORWARD VOLTAGE DROP n MEETS UL SPECIFICATION 94V-0 Electrical Characteristics @ 25o C. UFS21 . . . 26 Series Maximum Ratings UFS21 UFS22 UFS24 UFS26 100 200 400 600 Volts RMS Reverse Voltage...VR(rms) 70 140 280 420 Volts DC Blocking Voltage...VDC 100 200 400 600 Volts Peak Repetitive Reverse Voltage...VRRM Units Average Forward Rectified Current...IF(av) TA = 55°C ............................................. 2.0 ............................................... Amps Non-Repetitive Peak Forward Surge Current...IFSM @ Rated Current & Temp ............................................. 5 0 ............................................... Amps Forward Voltage @ 2.0A...VF ............................................. .95 ............................................... Volts DC Reverse Current...IR @ Rated DC Blocking Voltage TA = 25°C TA =150°C ............................................. 2.0 ............................................... µAmps ............................................. 5 0 ............................................... µAmps Typical Junction Capacitance...CJ (Note 1) ............................................. 7 0 ............................................... pF Typical Reverse Recovery Time...tRR (Note 2) ............................................. 3 5 ............................................... nS Operating & Storage Temperature Range...TJ, TSTRG ......................................... -65 to 150 .......................................... °C Page 10-6 Typical Junction Capacitance pF Amps Forward Current Derating Curve TA = Ambient Temperature (°°C) Reverse Voltage (Volts) Typical Instantaneous Forward Characteristics UFS21 . . . 26 Series 2.0 Amp SMD SUPER FAST RECTIFIERS Data Sheet Amps µ Amps Typical Reverse Characteristics Volts Percent of Rated Peak Voltage Non-Repetitive Peak Forward Surge Current Reverse Recovery Characteristics Non-Inductive (+) Amps (-) 50Ω Ω 25 VDC Ω D.U.T 10Ω 1Ω NonInductive (-) Pulse Generator Note 2 Oscilliscope (+) Note 1 Notes: Number of Cycles @ 60 HZ 1 . Rise Time = 7 nS Max. Impedance = 1 megohm, 22 pF 2 . Rise Time = 10 nS Max. Source Impedance = 50 Ohms NOTES: 1. Measured @ 1 MHZ and applied reverse voltage of 4.0V. 2. Conditions: IF = 0.5A, I R = 1.0A, I RR = 0.25A. +.5A tRR Ratings at 25 Deg. C ambient temperature unless otherwise specified. 0A -.25A -1.0A 1 cm Time Base Set @ 50/100nS/cm Single Phase Half Wave, 60 HZ Resistive or Inductive Load. For Capacitive Load, Derate Current by 20%. Page 10-7