Low Tuning Voltage/Low Rs Silicon Hyperabrupt Varactor Diode MA4ST1200 Series V 2.00 Ordering Information Features Low Series Resistance at Low Tuning Voltages High Capacitance Ratio at Low Tuning Voltages Surface Mount Plastic Packages : SC-79, SOD-323, SC-70 ( 3L ) n SPC Process for Superior C vs V Repeatability n n n Part Number Configuration Package MA4ST12XX-1279T Single SC-79 MA4ST12XX-1141T Single SOD-323 MA4ST12XX-1146T Common Cathode SC-70 ( 3 L ) Description M/A-COM's MA4ST1200 series is a highly repeatable, UHCVD/ion-implanted, hyperabrupt silicon tuning varactor in a cost effective surface mount package. This series of varactors is designed for high capacitance ratio, and high Q for low battery voltage operation. It is efficient for wide band tuning and low phase noise application where the supply voltage is limited to 5 volts or less. The Varactors are offered as Singles in SC-79, and SOD-323 along with a Common Cathode version offered in the SC-70, 3 Lead. Absolute Maximum Ratings @TA = +25 C 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 ) SC-79 0.10 0.6 SOD-323 0.11 1.2 SC-70, 3 Lead 0.12 1.3 1 Low Tuning Voltage/Low Rs Silicon Hyperabrupt Varactor Diode MA4ST1200 Series V 2.00 Case Styles SC-79 (SOD-523) Case Style 1279 Topview B Cathode Mark 10 Max Seating Plane F E C D INCHES MAX. DIM. MIN. A B C D E F G H 0.020 0.003 0.006 0.010 0.059 0.043 0.011 0.037 0.028 0.008 0.010 0.014 0.067 0.051 0.012 0.043 MILLIMETERS MIN. MAX. 0.50 0.08 0.15 0.25 0.08 1.50 0.28 0.94 0.71 0.20 0.25 0.36 0.15 1.30 0.30 1.09 A 10 Max H G SOD-323 Case Style 1141 C F E D G H B A INCHES MAX. DIM. MIN. A B C D E F G H 0.010 0.003 0.063 0.045 0.091 DIM. MIN. INCHES MAX. A B C D E F G H J 0.071 0.045 0.071 0.047 0.010 0.031 0.000 0.004 0.004 0.087 0.053 0.094 0.057 0.016 0.039 0.004 0.007 0.010 0.043 0.004 0.008 0.016 0.006 0.075 0.057 0.106 MILLIMETERS MIN. MAX. 0.25 0.08 1.6 1.15 2.3 1.1 0.1 0.2 0.4 0.15 1.9 1.45 2.7 SC-70, 3 Lead Case Style 1146 A H E J 10 M A X . C B G F D MILLIMETERS MIN. MAX. 1.80 1.15 1.80 1.19 0.25 0.80 0.00 0.10 0.10 2.20 1.35 2.40 1.45 0.41 1.00 0.10 0.18 0.25 2 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. Visit www.macom.com for additional data sheets and product information. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Low Tuning Voltage/Low Rs Silicon Hyperabrupt Varactor Diode MA4ST1200 Series V 2.00 Electrical Characteristics @ TA = +25 C Breakdown Voltage @ IR = 10A, Vb = 12 V Minimum Reverse Leakage Current @ VR =10V, IR = 100 nA Maximum Ct* (pF) Capacitance Ratio Rs** (Ohm) Part Number VR = 0.5 V VR = 2.0 V VR = 4.0 V Ct0.5/Ct4.0 VR = 2.0 V Typ. Min. Nom. Max. Typ. Typ. Typ. Max. MA4ST1230 10.1 4.2 4.7 5.2 2.75 3.67 0.4 0.7 MA4ST1240 7.1 3.0 3.4 3.8 2.05 3.46 0.4 0.7 * Capacitance @ 1 MHz ** Series Resistance @ 100 MHz Typical Capacitance vs. Biasing Voltage Typical Capacitance Change vs. Temperature 4% 12 % of Capacitance Change (relative to 25 C) Capacitance (pF) 10 MA4ST1230 8 6 MA4ST1240 4 2 0 2% 0% -2% -4% 0 1 2 3 4 5 Biasing Voltage (V) -40 -15 10 35 60 85 Temperature (degree C) Typical Rs vs Biasing Voltage* Series Resistance (Ohm) 1.00 MA4ST1230 0.80 MA4ST1240 0.60 0.40 0.20 0.00 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Biasing Voltage (V) 3 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. Visit www.macom.com for additional data sheets and product information. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Low Tuning Voltage/Low Rs Silicon Hyperabrupt Varactor Diode MA4ST1200 Series V 2.00 Typical Capacitance Values VR (V) MA4ST1230 Ct (pF) MA4ST1240 Ct (pF) 0.5 10.170 7.016 1.0 7.839 5.424 1.5 6.062 4.213 2.0 4.840 3.370 2.5 4.053 2.829 3.0 3.527 2.466 3.5 3.155 2.208 4.0 2.877 2.016 4.5 2.661 1.865 5.0 2.488 1.746 Spice Model Part Number N CJO (pF) Vj (V) M MA4ST1230 1.1 12.7 3.136 2.6 MA4ST1240 1.1 8.65 3.170 2.6 Rs Cp Cj Intrinsic Diode Model N=N Cj0=Cj0 Vj=Vj Fc=0.5 BV=20 V M=M Parasitic Cp & Ls Are per Above Table Ls 4 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. Visit www.macom.com for additional data sheets and product information. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020