unisonic technologies co., ltd SF18G diode www.unisonic.com.tw 1 of 3 copyright ? 2015 unisonic technologies co., ltd qw-r601-265-b glass passivated super fast recovery rectifier ? description the utc SF18G is a glass passivated super fast rectifier, it uses utc?s advanced technology to provide customers with high surge current and low forward voltage drop, etc. ? features * low forward voltage drop * high surge current capability * high current capability * high reliability ? symbol ? ordering information ordering number pin assignment lead free halogen free package 1 2 packing SF18Gl-z41-b SF18Gp-z41-b do-41 k a tape box SF18Gl-z41-r SF18Gp-z41-r do-41 k a tape reel note: pin assignment: a: anode k: cathode (1) b: tape box, r: tape reel (2) z41: do-41 (3) l: lead free, p: halogen free and lead free SF18Gl-z41-b (1)packing type (2)package type (3)green package ? marking SF18G date code l: lead free p: halogen free cathode band for uni-directional only
SF18G diode unisonic technologies co., ltd 2 of 3 www.unisonic.com.tw qw-r601-265-b ? absolute maximum ratings ratings at 25c ambient temperatur e unless otherwise specified. single phase half-wave 60hz, resistive or inductive load, for capacitive load current derate by 20%. parameter symbol ratings unit working peak reverse voltage v rwm 600 v repetitive peak reverse voltage v rrm 600 v maximum rms reverse voltage v rms 420 v dc blocking voltage v r 600 v average rectified output current (t a =55c) i o 1.0 a peak forward surge current 8.3ms single half sine-wave superimposed on rated load i fsm 30 a junction temperature t j -55~+150 c storage temperature t stg -55~+150 c note: absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? thermal data parameter symbol ratings unit junction to ambient (note 2) ja 50 c/w ? electrical characteristics ratings at 25c ambient temperatur e unless otherwise specified. single phase half-wave 60hz, resistive or inductive load, for capacitive load current derate by 20%. parameter symbol test conditions min typ max unit instantaneous forward voltage v fm i f =1.0a 1.7 v t a =25c 5.0 a dc reverse current at rated dc blocking voltage i rm t a =100c 100 a reverse recovery time t rr i f =0.5a, i r =1.0a, i rr =0.25a 35 ns junction capacitance (note 1) c j 25 pf notes: 1. measured at 1mhz and appl ied reverse voltage of 4.0v d.c. 2. thermal resistance from junction to ambien t at 0.375? (9.5mm) lead length, p.c.b. mounted.
SF18G diode unisonic technologies co., ltd 3 of 3 www.unisonic.com.tw qw-r601-265-b ? typical characteristics test circuit diagram and reverse recovery time characteristics 50 noninductive 10 noninductive dut (+) 50 vdc (approx) (-) 1 non inductive oscilloscope (note 1) (-) (+) pulse generator (note 2) notes: 1 rise time=7ns max. input impedance=1 megohm 22pf 2 rise time=10ns max. source impedance=50 ohms +0.5a 0 -0.25a -1.0a t rr 1cm set time base for 10/15ns/cm typical forward current derating curve average forward current (a) 1.5 1.0 0.5 0 25 50 75 100 125 150 175 ambient temperature, t a (c) single phase half wave 60hz resistive or inductive load 0.375"(9.5mm) lead length typical reverse characteristics 1000 100 10 1 0.1 0 20 40 60 80 100 120 140 percent of rated peak reverse voltage (%) t a =25c t a =125c t a =150c instantaneous reverse current (a) maximum non-repetitive forward surge current peak forward surge current (a) 35 30 25 20 15 10 1 2 5 10 20 50 100 number of cycles at 60hz t a =25c 8.3ms single half sine wave (jedec method) 5 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.
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