DATA SHEET SMV1273-079LF: Hyperabrupt Junction Tuning Varactor Applications VHF TV tuners VCOs Features Low-series resistance High-capacitance ratio Description Ultrasmall SC-79 package (MSL1, 260 C per JEDEC J-STD-020) The SMV1273-079LF is a silicon hyperabrupt junction varactor diode specifically designed for battery operation. The specified high-capacitance ratio and low-series resistance make this varactor appropriate for low phase-noise Voltage-Controlled Oscillators (VCOs) used at frequencies in wireless systems up to and above 2.5 GHz. Applications for the SMV1273-079LF include low-noise and wideband UHF and VHF VCOs for GSM, PCS, CDMA, and analog phones. Table 1 describes the packaging and marking of the SMV1273-079LF varactor. Table 1. Packaging and Marking Single SC-79 Green SMV1273-079LF 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 203018A Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice October 4, 2013 1 DATA SHEET SMV1273-079LF: HYPERABRUPT JUNCTION TUNING VARACTOR Otherwise, problems related to moisture absorption may occur Electrical and Mechanical Specifications when the part is subjected to high temperature during solder The absolute maximum ratings of the SMV1273-079LF varactor assembly. are provided in Table 2. Electrical specifications are provided in Table 3. Typical capacitance values are listed in Table 4. The The SMV1273-079LF varactor is rated to Moisture Sensitivity relationship between capacitance and reverse voltage is Level 1 (MSL1) at 260 C. It can be used for lead or lead-free illustrated in Figure 1. soldering. For additional information, refer to the Skyworks Application Note, Solder Reflow Information, document number The SPICE model for the SMV1273-079LF varactor is shown in 200164. Figure 2 and the associated model parameters are provided in Table 5. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. Package dimensions are shown in Figure 3, and tape and reel Production quantities of this product are shipped in a standard dimensions are provided in Figure 4. tape and reel format. Package and Handling Information Instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. Table 2. SMV1273-079LF Absolute Maximum Ratings (Note 1) Parameter Symbol Minimum Typical Maximum Units Reverse voltage VR 29 V Forward current IF 20 mA Power dissipation PDIS 250 mW Operating temperature TOP 55 +125 C Storage temperature TSTG 55 +150 C Note 1: 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. Table 3. SMV1273-079LF Electrical Specifications (Note 1) (TOP = 25 C, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units Reverse current IR VR = 26 V 20 nA Capacitance CT f = 1 MHz VR = 2 V 13.6 16.9 pF VR = 25 V 2.0 2.4 pF Capacitance ratio CTR CT 2 V/CT 25 V 6.2 7.0 Series resistance RS f = 470 MHz, VR = 5 V 0.8 Breakdown voltage VBR IR = 10 A 29 V Note 1: Performance is guaranteed only under the conditions listed in this Table. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 October 4, 2013 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 203018A