unisonic technologies co., ltd tf2123 n-channel jfet www.unisonic.com.tw 1 of 4 copyright ? 2014 unisonic technologies co., ltd qw-r206-106.c n-channel jfet capacitor microphone applications ? description the utc tf2123 uses advanced trench technology to provide excellent r ds (on) , low gate charge and operation with low gate voltages. this device is suitable for use in capacitor microphone applications. ? features *suited for use in audio, telephone capacitor microphones. *good voltage characteristic. *good transient characteristic. ordering information ordering number package pin assignment packing 1 2 3 tf2123g-xx-ae3-r sot-23 s d g tape reel TF2123G-XX-AN3-R sot-523 s d g tape reel tf2123g-xx-aq3-r sot-723 s d g tape reel note: pin assignment: s: source d: drain g: gate (1) r: tape reel (2) ae3: sot-23, an3: so t-523, aq3: sot-723 (3) xx: refer to cl assification of i dss (4) g: halogen free and lead free tf2123l -xx -ae3 -r (1)packing type (2)package type (3)rank (4)green package ? marking tf2123-e3 tf2123-e4 tf2123-e5 e3 e4
tf2123 n-channel jfet unisonic technologies co., ltd 2 of 4 www.unisonic.com.tw qw-r206-106.c ? absolute maximum ratings ( t a =25 , unless otherwise specified ) parameter symbol rating unit gate drain voltage v gdo -20 v gate current i g 10 ma drain current i d 10 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 beyond 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 ? c, unless otherwise specified) parameter symbol test conditions min typ max unit gate drain breakdown voltage bv gdo i g =-100 a -20 v gate source cut off voltage v gs(off) v ds =2v, i d =1 a -0.38 v zero-gate voltage drain current i dss v ds =2v, v gs =0v tf2123-e3 100 170 a tf2123-e4 150 270 a tf2123-e5 210 350 a drain current i d v dd =2v, r l =2.2k ? , c g =5pf i dss =100 a 98 a i dss =250 a 244 a i dss =350 a 337 a forward transfer admittance lyfsl v ds =2v, v gs =0v 1.43 ms input capacitance c iss v ds =2, v gs =0, f=1mhz 5.0 pf voltage gain g v v dd =2v, r l =2.2k ? , c g =5pf, f=1khz, v in =10mv i dss =100 a 0.1 db i dss =250 a 1.95 db i dss =350 a 2.25 db delta voltage gain ? g v v in =10mv, r l =2.2k ? , c g =5pf, f=1kh, v dd =2v to1.5v -0.5 db frequency characteristic ? g v (f) v in =10mv, r l =2.2k ? , c g =5pf, v dd =2v, f=1khz to 110khz -0.2 db output noise voltage v no v dd =2v, c g =5pf, a-curve filter r l =1k ? -107 db r l =2.2k ? -102 db total harmonic distortion thd v dd =2v, r l =2.2k ? , c g =5pf, f=1khz, v in =50mv 0.9 % ? classification of i dss rank e3 e4 e5 range 100-170 150-270 210-350
tf2123 n-channel jfet unisonic technologies co., ltd 3 of 4 www.unisonic.com.tw qw-r206-106.c ? test circuit (t a =25 ? c)
tf2123 n-channel jfet unisonic technologies co., ltd 4 of 4 www.unisonic.com.tw qw-r206-106.c ? typical characteristics utc assumes no responsib ility for equipment failures that result from using pr oducts 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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