UNISONIC TECHNOLOGIES CO., LTD SFR1020C DIODE ULTRA-FAST RECOVERY RECTIFIER DIODES DESCRIPTION UTC SFR1020C is dual center tap rectifier suited for high frequency Switching Mode PowerSupplies applications. 1 FEATURES TO-220 * High Surge Current Capability * Suited For Smps, DC ~ DC Converters * Low Forward And Reverse Recovery Time * Low Losses CONNECTION DIAGRAM ORDERING INFORMATION Order Number Lead Free Halogen Free SFR1020CL-TA3-T SFR1020CG-TA3-T Note: Pin Assignment: A: Anode, K: Cathode www.unisonic.com.tw Copyright © 2012 Unisonic Technologies Co., Ltd Package TO-220 1 A1 Pin Assignment 2 3 K A2 Packing Tube 1 of 4 QW-R601-004.B SFR1020C DIODE ABSOLUTE MAXIMUM RATING (limiting values, per leg) PARAMETER SYMBOL RATINGS UNIT Repetitive Peak Reverse Voltage VRRM 200 V RMS Forward Current IF(RMS) 10 A Average Forward Current δ= 0.5 IF(AV) 5 A TC=125°C (Per leg) Surge Non Repetitive Forward Current, tp=10ms Sinusoidal IFSM 50 A Storage temperature range Tstg -60 ~ +150 °C Note 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2. The device is guaranteed to meet performance specification within 0°C~70°C operating temperature range and assured by design from –20°C~85°C. ELECTRICAL CHARACTERISTICS (per leg) PARAMETER Reverse Leakage Current Forward Voltage Drop SYMBOL TEST CONDITIONS TJ = 25°C VR = VRRM IR (Note1) TJ = 100°C IF = 5 A TJ = 25°C VF (Note2) TJ = 125°C IF = 5 A MIN TYP 0.69 MAX 50 0.6 0.9 0.74 UNIT μA mA V Note1. tp = 5 ms, δ< 2 % 2. tp = 380 μs, δ< 2 % To evaluate the conduction losses use the following equation: P = 0.78× IF(AV) + 0.042 × IF2(RMS) RECOVERY CHARACTERISTICS PARAMETER Reverse Recovery Time SYMBOL TEST CONDITIONS trr TJ= 25°C, IF = 0.5A, VF = 30V, IR = 1A TJ = 25°C, IF= 1A, dIF/dt = 50 A/μs Formard Recovery Time tfr VFR = 1.1×VF max TJ= 25°C, IF= 1A, dIF/dt = 50 A/μs VFP When diodes 1 and 2 are used simultaneously : ∆TJ (diode 1) = P(diode 1)×Rth(j-c)( per leg) + P(diode 2) × Rth(c) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN TYP MAX 30 UNIT ns 20 ns 3 V 2 of 4 QW-R601-004.B SFR1020C Forward Voltage Drop Versus Forward Current (Maximum Values, Per Diode) 50.0 Peak Curren,IM (A) δ= 0.5 δ= 0. δ= 1 0.2 TYPICAL CHARACTERISTICS Average Forward Power Dissipation,PF (av) (w) DIODE Relative Variation Of Thermal Versus Impedance Junction To Case Versus Pulse Duration 1.0 δ=0.5 10.0 TJ=125°C δ=0.2 TJ=25°C 1.0 δ=0.1 Single pulse 0.1 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Forward Voltage Drop, VFM (V) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 0.1 IE-3 T δ=tp/T IE-2 IE-1 Pulse Duration,t (s) tp IE+0 3 of 4 QW-R601-004.B SFR1020C Dynamic Parameters:Qrr; IRM (TJ) / Qrr; IRM (TJ =125°C) Peak Reverse Recovery Current, IRM (A) Junction Capacitance, C (pF) Reverse Recovery Charges, Qrr (nC) DIODE UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 4 QW-R601-004.B