unisonic technologies co., ltd TF215 preliminary jfet www.unisonic.com.tw 1 of 3 copyright ? 2009 unisonic technologies co., ltd qw-r206-096.a n-channel junction field effect transistor ? description the utc TF215 is an n-channel junction field effect transistor, and it can be speciall y used in electronic condenser microphone. ? features * good voltage characteristics and transient characteristics. * halogen free ? ordering information pin assignment ordering number package 1 2 3 packing TF215g-x-an3-r sot-523 s d g tape reel ? marking TF215-d4 TF215-d5
TF215 preliminary jfet unisonic technologies co., ltd 2 of 3 www.unisonic.com.tw qw-r206-096.a ? absolute maximum rating (ta=25 , unless otherwise specified) parameter symbol ratings unit gate to drain voltage v gdo -20 v gate current i g 10 ma drain current i d 1 ma power dissipation p d 100 mw junction temperature t j 150 storage temperature t stg -55~+150 note: absolute maximum ratings are those values be yond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? electrical characteristics (t a =25 , unless otherwise specified) parameter symbol test conditions min typ max unit g-d breakdown voltage bv gdo i g =-100 a -20 v gate off voltage v gs(off) v ds =5.0v, i d =1 a -0.2 -0.6 -1.0 v drain current i dss v ds =5.0v, v gs =0 140 350 a forward transfer admittance |yfs| v ds =2.0v, v gs =0, f=1khz 0.8 1.2 ms input capacitance ciss v ds =5.0v, v gs =0, f=1mhz 3.5 pf reverse transfer capacitance crss v ds =5.0v, v gs =0, f=1mhz 0.65 pf voltage gain g v v in =10mv, f=1khz -3.0 db reduced voltage characteristic g vv v in =10mv, f=1khz v cc =4.5 ? 1.5v -1.2 -3.5 db frequency characteristic g vf f=1khz~110hz -1.0 db input resistance z in f=1khz 25 m ? output resistance z o f=1khz 1000 ? total harmonic distortion thd v in =30mv, f=1khz 1.2 % output noise voltage v no v in =0, a curve -110 db ? classification of i dss rank d4 d5 range 140-240 210-350
TF215 preliminary jfet unisonic technologies co., ltd 3 of 3 www.unisonic.com.tw qw-r206-096.a ? test circuit (ta=25 ) thd v for output impedance 1k ? b a v cc =1.5v v cc =4.5v 1k ? 33f vtvm 15pf osc 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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