ultra high ratio si hyperabrupt varactor diode m/a - com inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without noti ce. m/a - com makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose , nor does m/a - com assume any liability whatsoever arising out of the use or application of any product(s) or information. ? north america tel: 800.366.2266 / fax: 978.366.2266 ? europe tel: 44.1908.574.200 / fax: 44.1908.574.300 ? asia/pacific tel: 81.44.844.8296 / fax: 81.44.844.8298 visit www.macom.com for additional data sheets and product information. 1 v4 ma4st2000 series features ultra high capacitance ratio, c(0.1v)/c(4.7v) = 18:1, c(0.1v)/c(2.7v) = 12:1 surface mount plastic packages : sod - 323, sc - 70, 3 lead spc process for superior c vs v and q vs v repeatability description and applications m/a - com?s ma4st2000 series is a highly repeatable, uhcvd/ion - implanted, hyperabrupt silicon tuning varactor in a cost effective surface mount pack age. this series of varactors is designed for high capacitance ratio for low battery voltage operation. it is efficient for wi de band tuning and low phase noise application where the supply voltage is limited to 5 volts or less. varactors in this series have a typical 18:1 capacitance ratio between 0.1 v and 4.7 v and a 12:1 ratio between 0.1 v and 2.7 v. th e varactors are offe red as singles in sod - 32 3 configurations with common cathode version offered in a sc - 70, 3 lead . ordering information absolute maximum ratings @ t a =+25 c (unless otherwise noted) 1 1. operation of this device above any one of these parameters may cause permanent damage. parameter absolute maximum reverse voltage 12 v forward current 50 ma operating temperature - 55 c to +125 c storage temperature - 55 c to +125 c technical parasitic information package type package cp ( pf ) package ls ( nh ) sod - 323 0.11 1.2 sc - 70, 3 lead 0.12 1.3 part number configuration package ma4st 2x xx - 1141t single sod - 323 ma4st 2x xx - 1146t common cathode sc - 70 ( 3 l )
ultra high ratio si hyperabrupt varactor diode m/a - com inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without noti ce. m/a - com makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose , nor does m/a - com assume any liability whatsoever arising out of the use or application of any product(s) or information. ? north america tel: 800.366.2266 / fax: 978.366.2266 ? europe tel: 44.1908.574.200 / fax: 44.1908.574.300 ? asia/pacific tel: 81.44.844.8296 / fax: 81.44.844.8298 visit www.macom.com for additional data sheets and product information. 2 v4 ma4st2000 series case styles sc - 70, 3 lead case style 1146 inches millimeters dim. min. max. min. max. a 0.071 0.087 1.80 2.20 b 0.045 0.053 1.15 1.35 c 0.071 0.094 1.80 2.40 d 0.047 0.057 1.19 1.45 e 0.010 0.016 0.25 0.41 f 0.031 0.039 0.80 1.00 g 0.000 0.004 0.00 0.10 h 0.004 0.10 j 0.004 0.10 0.0 07 0.010 0.18 0.25 sod - 323 case style 1141 inches millimeters dim. min. max. min. max. a ? 0.043 ? 1.1 b ? 0.004 ? 0.1 c ? 0.008 ? 0.2 d 0.010 0.016 0.25 0.4 e 0.003 0.006 0.08 0.15 f 0.063 0.075 1.6 1.9 g 0.045 0.057 1.15 1.45 h 0.091 0. 106 2.3 2.7 f d h g c e a b a e d j h g f 10 max. c b
ultra high ratio si hyperabrupt varactor diode m/a - com inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without noti ce. m/a - com makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose , nor does m/a - com assume any liability whatsoever arising out of the use or application of any product(s) or information. ? north america tel: 800.366.2266 / fax: 978.366.2266 ? europe tel: 44.1908.574.200 / fax: 44.1908.574.300 ? asia/pacific tel: 81.44.844.8296 / fax: 81.44.844.8298 visit www.macom.com for additional data sheets and product information. 3 v4 ma4st2000 series electrical specifications @ t a = +25 c breakdown voltage @ i r = 10 m a, v b = 12 v minimum reverse leakage current @ v r =10v, i r = 100 na maximum 3 part number ct* (pf) capacitance ratio rs** (ohm) v r = 0.1 v v r = 1.0 v v r = 2.7 v v r = 4.7 v ct 0.1 /ct 4.7 ct 0.1 /ct 2.7 typ. min. nom. max. typ. typ. typ. typ. typ. max. ma4st2200 7.68 3.66 4.07 4.48 0.70 0.47 16.3 11.0 3.84 4.6 ma4st2300 34.2 16.2 18.0 19.8 2.67 1.85 18.5 12.8 0.95 1.2 ma4st2400 60.3 28.6 31.8 34.9 4.98 3.27 18.4 12.1 0.67 0.9 ma4st2500 86.4 41.4 46.0 50.6 6.68 4.64 18.6 12.9 0.61 0.8 ma4st2600 113.3 54.3 60.3 66.4 9.14 6.27 18.1 12.4 0.54 0.7 v r = 4.0 v
ultra high ratio si hyperabrupt varactor diode m/a - com inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without noti ce. m/a - com makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose , nor does m/a - com assume any liability whatsoever arising out of the use or application of any product(s) or information. ? north america tel: 800.366.2266 / fax: 978.366.2266 ? europe tel: 44.1908.574.200 / fax: 44.1908.574.300 ? asia/pacific tel: 81.44.844.8296 / fax: 81.44.844.8298 visit www.macom.com for additional data sheets and product information. 4 v4 ma4st2000 series * capacitance @ 1 mhz ** series resistance @ 470 mhz typical series resistance vs. biasing voltage typical capacitance vs. biasing voltage typical series resistance vs. frequency 3 0 20 40 60 80 100 120 140 0 1 2 3 4 5 biasing voltage (v) capacitance (pf) ma4st2200 ma4st2300 ma4st2400 ma4st2500 ma4st2600 typical capacitance change vs. temperature 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 0 1 2 3 4 5 biasing voltage (v) series resistance (ohm) ma4st2200 ma4st2600 ma4st2400 ma4st2300 ma4st2500 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 200 300 400 500 frequency (mhz) series resistance (ohm) ma4st2500 ma4st2200 ma4st2300 ma4st2400 ma4st2600 -0.08 -0.04 0 0.04 0.08 -40 -15 10 35 60 85 temperature (degree c) % of capacitance change (relative to 25 c)
ultra high ratio si hyperabrupt varactor diode m/a - com inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without noti ce. m/a - com makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose , nor does m/a - com assume any liability whatsoever arising out of the use or application of any product(s) or information. ? north america tel: 800.366.2266 / fax: 978.366.2266 ? europe tel: 44.1908.574.200 / fax: 44.1908.574.300 ? asia/pacific tel: 81.44.844.8296 / fax: 81.44.844.8298 visit www.macom.com for additional data sheets and product information. 5 v4 ma4st2000 series typical capacitance values spice model ma4st2200 ma4st2300 ma4st2400 ma4st2500 ma4st2600 ct (pf) ct (pf) ct (pf) 0.1 7.643 34.06 60.26 86.48 113.09 0.3 6.746 30.07 53.12 76.34 99.80 0.5 5.948 26.56 46.81 67.36 88.07 1.0 4.006 18.00 31.75 46.09 60.31 1.5 1.895 8.313 15.52 22.83 30.21 2.0 0.985 3.941 7.470 10.05 13.94 v r (v) ct (pf) ct (pf) 2.5 0.744 2.889 5.407 7.112 9.952 3.0 0.638 2.429 4.512 5.918 8.274 3.5 0.579 2.166 4.000 5.275 7.332 4.0 0.543 1.993 3.663 4.895 6.749 4.5 0.517 1.845 3.370 4.691 6.317 5.0 0.469 1.771 3.200 4.557 6.086 cp rs cj ls intrinsic diode model n=n cj0=cj0 vj=vj fc=0.5 bv=43 v m=m rs=rs parasitic cp & ls are per above table part number n cjo (pf) vj (v) m rs ( w) ma4st2200 1.261 10.2 12.62 18.60 1.114 ma4st2300 1.210 46.8 2.450 4.268 1.085 ma4st2400 1.158 84.6 1.322 2.632 0.903 ma4st2500 1.204 100 1.616 2.700 0.842 ma4st2600 1.196 159 1.169 2.270 0.910
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