m/a-com inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. 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. also offering rohs compliant equivalent parts surface mount hyperabrupt varactors v2 ma4st400 series 1 features ? surface mount packages ? high quality factor ? capacitance ratio to 9.5:1 ? tape and reel packaging available ? spc monitored ion implantation for excellent ? c-v repeatability ? singles and common cathode pairs ? lead-free (rohs compliant) equivalents available with 260 c reflow compatibility description m/a-com?s ma4st400 series are ion-implanted, hyperabrupt junction, silicon tuning varactors in the sot-23 surface mount package. these ther- mal oxide passivated diodes feature high capaci- tance ratio and quality factor. they are well suited for octave bandwidth tuning in the hf to uhf fre- quency bands. the standard capacitance toler- ance is 10%, with tighter tolerances available. capacitance matching at one or more bias volt- ages is also available.these diodes are offered with standard sn/pb plating, as well as with 100% matte sn plating on our rohs compliant devices. applications the ma4st400 series tuning varactors are useful for octave bandwidth tuning applications in the hf through uhf ranges. applications include vcos and voltage tuned filters in radios, cable tv tun- ers and test instruments where low cost and ex- cellent lot-to-lot repeatability are critical. linear tuning performance is available from 3 to 8 volts. absolute maximum ratings @ t a =+25 c (unless otherwise noted) 1 1. operation of this device abov e any one of these parameters may cause permanent damage. 2. please refer to applicati on note m538 for surface mounting instructions parameter absolute maximum reverse voltage 22v forward current 50 ma operating temperature -55 c to +125 c storage temperature -55 c to +125 c total power dissipation 250 mw part number rohs compliant part number configuration ma4st401-287t mavr-000401-0287at single ma4st402-287t mavr-000402-0287at single ma4st403-287t mavr-000403-0287at single ma4st404-287t mavr-000404-0287at single ma4st405-287t mavr-000405-0287at single ma4st406-287t mavr-000406-0287at single ma4st407-287t mavr-000407-0287at single ma4st408-287t mavr-000408-0287at single ma4st409-287t mavr-000409-0287at single ma4st401ck-287t mavr-000401-0287ft common cathode ma4st402ck-287t mavr-000402-0287ft common cathode ma4st403ck-287t mavr-000403-0287ft common cathode MA4ST404CK-287T mavr-000404-0287ft common cathode ma4st405ck-287t mavr-000405-0287ft common cathode ma4st406ck-287t mavr-000406-0287ft common cathode ma4st407ck-287t mavr-000407-0287ft common cathode ma4st408ck-287t mavr-000408-0287ft common cathode ma4st409ck-287t mavr-000409-0287ft common cathode rohs compliant parts 1 suffix refers to package style , conf iguration and packaging requirements. other packages and configurations may be available upon request. configurations common cathode single
m/a-com inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. 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. also offering rohs compliant equivalent parts surface mount hyperabrupt varactors v2 ma4st400 series 2 electrical specifications @ t a = +25 c breakdown voltage @ i r = 10 a, v b = 22 v minimum reverse leakage current @ v r =20v, i r = 100 na maximum 1 the suffix defines package style, configuration and packaging in formation. contact representative for complete part identific ation. 2 capacitance specific ation is per diode part number base rohs compliant part number base 1 c t 2 capacitance ratio (pf) f=1 mhz, v r =4.0v ct2.0/ct20 f=50 mhz, min. nom. max. typ. min. ma4st401-287t mavr-000401-0287at 9.0 10.0 11.0 6 250 ma4st402-287t mavr-000402-0287at 10.8 12.0 13.2 6.5 250 ma4st403-287t mavr-000403-0287at 13.5 15.0 16.5 7 250 ma4st404-287t mavr-000404-0287at 16.2 18.0 19.8 7 175 ma4st405-287t mavr-000405-0287at 19.8 22.0 24.2 7.5 175 ma4st406-287t mavr-000406-0287at 24.3 27.0 29.7 8 150 ma4st407-287t mavr-000407-0287at 29.7 33.0 36.3 9 150 ma4st408-287t mavr-000408-0287at 35.1 39.0 42.9 9.5 150 ma4st401ck-287t mavr-000401-0287ft 9.0 10.0 11.0 6 250 q factor ma4st402ck-287t mavr-000402-0287ft 10.8 12.0 13.2 6.5 250 ma4st403ck-287t mavr-000403-0287ft 13.5 15.0 16.5 7 250 MA4ST404CK-287T mavr-000404-0287ft 16.2 18.0 19.8 7 175 ma4st405ck-287t mavr-000405-0287ft 19.8 22.0 24.2 7.5 175 ma4st406ck-287t mavr-000406-0287ft 24.3 27.0 29.7 8 150 ma4st407ck-287t mavr-000407-0287ft 29.7 33.0 36.3 9 150 ma4st408ck-287t mavr-000408-0287ft 35.1 39.0 42.9 9.5 150 ma4st409ck-287t mavr-000409-0287ft 42.3 47.0 51.7 9.5 150 ma4st409-287t mavr-000409-0287at 42.3 47.0 51.7 9.5 150
m/a-com inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. 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. also offering rohs compliant equivalent parts surface mount hyperabrupt varactors v2 ma4st400 series 3 typical performance curves ma4st400 series hyperabrupt varactor 1 10 100 1 10 100 reverse voltage (v) capacitance (pf) ma4st401 ma4st402 ma4st403 ma4st404 ma4st405 ma4st406 ma4st407 ma4st408 ma4st409 bias (v) ma4st401 ma4st402 ma4st403 ma4st404 ma4st405 ma4st406 ma4st407 ma4st408 ma4st409 0 30.37 33.12 47.05 59.64 69.45 86.29 105.60 124.52 150.59 1 20.86 23.02 32.12 40.43 47.47 58.98 72.34 85.20 103.10 2 16.19 18.20 24.72 30.89 36.55 45.41 55.93 65.82 79.70 3 12.83 14.87 19.33 24.00 28.57 35.50 44.02 51.83 62.79 4 9.99 12.14 14.74 18.35 21.73 27.00 33.85 39.95 48.45 5 7.59 9.69 10.90 13.95 15.95 19.82 25.13 29.86 36.27 6 5.80 7.56 8.08 10.94 11.73 14.57 18.64 22.36 27.26 8 3.76 4.79 4.96 7.61 7.11 8.83 11.37 13.80 17.11 10 2.86 3.41 3.76 6.00 5.37 6.67 8.45 10.23 12.73 12 2.41 2.74 3.17 5.12 4.53 5.63 7.05 8.50 10.58 15 2.03 2.23 2.66 4.33 3.81 4.73 5.87 7.05 8.79 20 1.68 1.83 2.21 3.60 3.18 3.95 4.81 5.76 7.17 22 1.60 1.77 2.09 3.39 3.11 3.86 4.53 5.42 6.75 tabulated capacitance data
m/a-com inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. 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. also offering rohs compliant equivalent parts surface mount hyperabrupt varactors v2 ma4st400 series 4 mounting information the illustration indicates the recommended mounting pad configuration for the sot-23 package. solder paste containing flux should be screened onto the pads to a thickness of 0.005- 0.007 inches. the plastic package is placed in position, firmly adhering to the solder paste. permanent attachment is performed by a reflow soldering procedure during which the tab temperature does not exceed +275 c and the body temperature does not exceed +250 c, for standard models and +260 c for the rohs compliant devices. please refer to application note m538 for surface mounting instructions. 0.75 1.9 .037 0.95 .035 0.90 .090 2.2 .030 0.80 inches mm dimenstions: min. min. sot-23 f d h j a g l c e b k n m sot-23 (case style 287) inches millimeters dim. min. max. min. max. a ? 0.048 ? 1.22 b ? 0.008 ? 0.20 c ? 0.040 ? 1.00 d 0.013 0.020 0.35 0.50 e 0.003 0.006 0.08 0.15 f 0.110 0.119 2.80 3.00 g 0.047 0.056 1.20 1.40 h 0.037 typical 0.95 typical j 0.075 typical 1.90 typical k ? 0.103 ? 2.60 l ? 0.024 ? 0.60 dim. gradient m 10 max. 1 n 2 . . .30 sot-23 case style 287
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