DATA SHEET SMV1493-079LF and SMV1494-079LF Plastic Packaged Abrupt Junction Tuning Varactors Applications High-Q resonators in wireless system VCOs High volume commercial systems Features High Q Low series resistance for low phase noise Description Ultra-small SC-79 package (MSL1, 260 C per The SMV1493-079LF and SMV1494-079LF silicon abrupt junction JEDEC J-STD-020) varactor diodes are designed for use in Voltage Controlled Oscillators (VCOs) requiring tight capacitance tolerances. The low resistance of these varactors makes them appropriate for high-Q resonators in wireless system VCOs to frequencies above 2.5 GHz. Table 1 describes the SC-79 package and markings of the SMV1493/SMV1494-079LF varactors. Table 1. Packaging and Marking Single SC-79 Green SMV1493-079LF Marking: Cathode SMV1494-079LF Marking: Cathode Ls = 0.7 nH The Pb-free symbol or LF in the part number denotes a lead-free, RoHS- compliant package unless otherwise noted as Green. Tin/lead (Sn/Pb) packaging is not recommended for new designs. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 200070I Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice May 25, 2011 1 DATA SHEET SMV1493-079LF AND SMV1494-079LF VARACTORS Table 2. SMV1405-SMV1413 Series Absolute Maximum Ratings Parameter Symbol Minimum Typical Maximum Units Reverse voltage VR 15 V Forward current IF 20 mA Power dissipation PDIS 250 mW Operating temperature TOP 55 +125 C Storage temperature TSTG 55 +150 C Note: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times. The SMV1493-079LF and SMV1494-079LF varactors are Class 0 Human Body Model (HBM) ESD devices. Table 3. SMV1493-079LF and SMV1494-079LF Electrical Specifications (Note 1) (TOP = 25 C, Unless Otherwise Noted) RS 1 V, CT 1 V CT 4 V 500 MHz (pF) (pF) Part Number ( ) Min. Max. Min. Max. Max. SMV1493 17.4 20.0 10.0 12.1 0.50 SMV1494 36.3 41.7 20.7 25.3 0.45 Note 1: Performance is guaranteed only under the conditions listed in this Table. Reverse voltage VR (IR = 10 A) = 12 V minimum Reverse current IR (VR = 10 V) = 20 nA maximum Electrical and Mechanical Specifications Package and Handling Information The absolute maximum ratings of the SMV1493-079LF and Instructions on the shipping container label regarding exposure to SMV1494-079LF varactors are provided in Table 2. Electrical moisture after the container seal is broken must be followed. specifications are provided in Table 3. Typical capacitance values Otherwise, problems related to moisture absorption may occur are listed in Table 4. Typical capacitance vs reverse voltage when the part is subjected to high temperature during solder performance for the SMV1494-079LF and SMV1494-079LF assembly. varactors is illustrated in Figure 1. The SMV1493-079LF and SMV1494-079LF varactors are rated to The SPICE model for the SMV1493-079LF and SMV1494-079LF Moisture Sensitivity Level 1 (MSL1) at 260 C. They can be used varactors is shown in Figure 2 and the associated model for lead or lead-free soldering. For additional information, refer to parameters are provided in Table 5. the Skyworks Application Note, Solder Reflow Information, document number 200164. Package dimensions are shown in Figure 3, and tape and reel dimensions are provided in Figure 4. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. Production quantities of this product are shipped in a standard tape and reel format. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 May 25, 2011 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 200070I