DATA SHEET SMV1281 Series: Hyperabrupt Junction Tuning Varactors Applications Wideband VCOs High-volume, low-cost systems Features High tuning ratio Packages rated MSL1, 260 °C per JEDEC J-STD-020 Skyworks GreenTM products are compliant with all applicable legislation and are halogen-free. For additional information, refer to Skyworks Definition of GreenTM, document number SQ04–0074. Description The SMV1281 series of surface mount hyperabrupt junction varactor diodes are designed for very high capacitance tuning ratios with a low series resistance, which makes these devices especially attractive for wideband Voltage-Controlled Oscillator (VCO) applications. Table 1 describes the packages and markings of the SMV1281 varactors. Table 1. Packaging and Marking Single Single SC-79 Green™ SOD-323 Green™ SMV1281-079LF Marking: Cathode and YC SMV1281-011LF Marking: HP LS = 0.7 nH LS = 1.5 nH The Pb-free symbol or “LF” in the part number denotes a lead-free, RoHScompliant 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 • [email protected] • www.skyworksinc.com 200066L • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 7, 2015 1 DATA SHEET • SMV1281 SERIES VARACTORS Electrical and Mechanical Specifications Package and Handling Information The absolute maximum ratings of the SMV1281 varactors are provided in Table 2. Electrical specifications are provided in Table 3. Typical capacitance values are listed in Table 4. Typical capacitance vs reverse voltage performance for the SMV1281 varactors is illustrated in Figure 1. Instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. Otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. The SPICE model for the SMV1281 varactor series is shown in Figure 2 and the associated model parameters are provided in Table 5. The SMV1281 varactors are rated to Moisture Sensitivity Level 1 (MSL1) at 260 C. They can be used for lead or lead-free soldering. For additional information, refer to the Skyworks Application Note, Solder Reflow Information, document number 200164. Package dimensions are shown in Figures 3 and 5, and tape and reel drawings are provided in Figures 4 and 6. 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. Table 2. SMV1281 Series Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units 24 V Reverse voltage VR Forward current IF 20 mA Power dissipation PDIS 250 mW Operating temperature TOP –55 +125 C Storage temperature TSTG –55 +150 C Electrostatic discharge: ESD 2000 4000 400 V V V Charged Device Model (CDM), Class 4 ESD Human Body Model (HBM), Class 3A Man-Machine (MM) Model, Class 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. Table 3. SMV1281 Series Electrical Specifications (Note 1) (TOP = 25 C, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units 20 nA 7.8 0.6 8.6 0.7 9.5 0.8 pF pF Reverse current IR VR = 20 V Capacitance CT VR = 1 V VR = 20 V Capacitance ratio CTR VR = 1 V/20 V 12 – Resistance RS f = 500 MHz, VR = 1 V 1.7 Ω Breakdown voltage VBR IR = 10 μA 24 Note 1: Performance is guaranteed only under the conditions listed in this table. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 August 7, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200066L V DATA SHEET • SMV1281 SERIES VARACTORS Table 4. Capacitance vs Reverse Voltage VR (V) CT (pF) 0 13.30 1 8.60 2 6.30 3 4.80 4 3.60 5 2.70 6 2.00 7 1.60 8 1.40 9 1.20 10 1.10 11 1.00 12 0.94 13 0.89 14 0.85 15 0.81 16 0.78 17 0.75 18 0.73 19 0.71 20 0.69 Typical Performance Characteristics 14 Capacitance (pF) 12 10 8 6 4 2 0 0 2 4 6 8 10 12 14 16 18 20 Reverse Voltage (V) Figure 1. Capacitance vs Reverse Voltage Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200066L • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 7, 2015 3 DATA SHEET • SMV1281 SERIES VARACTORS PORT P_anode port = 1 IND LS L = LS RES RS R = RS CAP CP C = CP DIODE Varactor_Diode AREA = 1 MODEL = Diode_Model MODE = nonlinear DIODEM Diode_Model IS = 1.00e-14 RS = 0 N=1 TT = 0 CJO = CJO M=M VJ = VJ EG = 1.11 XTI = 3 KF =0 AF =1 PORT P_Cathode port = 2 FC = 0.5 BV = 0 IBV = 1e-3 ISR = 0 NR = 2 IKF = 0 NBV = 1 IBVL = 0 NBVL = 1 TBV1 = 0 TNOM = 27 FFE = 1 S1672 Figure 2. SPICE Model Table 5. SPICE Model Parameters Part Number SMV1281-011LF SMV1281-079LF CJO (pF) VJ (V) M CP (pF) RS (Ω) LS (nH) 13 14 6 0.62 1.7 1.2 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 August 7, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200066L DATA SHEET • SMV1281 SERIES VARACTORS Box or Bar Polarity Indicator Area 0.006 (0.15 mm) Min. 0.010 (0.25 mm) Min. 0.014 (0.35 mm) Max. 1 2 0.028 (0.70 mm) Min. 0.035 (0.90 mm) Max. 0.060 (1.50 mm) Min. 0.067 (1.70 mm) Max. 0.043 (1.10 mm) Min. 0.051 (1.30 mm) Max. 10° Max. 0.020 (0.50 mm) Min. 0.028 (0.70 mm) Max. 0.003 (0.07 mm) Min. 0.008 (0.20 mm) Max. 10° Max. Dimensions are in inches (millimeters shown in parentheses) S1652 Figure 3. SC-79 Package Dimensions Ø1.50± 0.10 4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05 0.229 ± 0.02 (T) 1.75 ± 0.10 B A B Pin 1 Indicator 0.80 ± 0.05 (Ko) B 8.00 ± 0.20 A 3.50 ± 0.05 1.40 ± 0.05 1.95 ± 0.05 (Bo) 2° Max Ø0.50± 0.05 0.39 ± 0.05 2o Max 0.90 ± 0.05 (Ao) A Notes: 1. Carrier tape: black conductive polycarbonate or polystyrene. 2. Cover tape material: transparent conductive PSA. 3. Cover tape size: 5.4 mm width. 4. ESD-surface resistivity is ≤1 x 108 Ohms/square per EIA, JEDEC TNR Specification. 4. All measurements are in millimeters. S2929 Figure 4. SC-79 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200066L • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 7, 2015 5 DATA SHEET • SMV1281 SERIES VARACTORS 0.060 (1.52 mm) Min. 0.070 (1.78 mm) Max. 0.090 (2.29 mm) Min. 0.107 (2.72 mm) Max. 0.044 (1.12 mm) Min. 0.054 (1.37 mm) Max. 1 0.000 (0 mm) Min. 0.004 (0.10 mm) Max. 0.013 (0.33 mm) Min. 0.017 (0.43 mm) Max. 2 0.012 (0.305 mm) Min. 0.016 (0.406 mm) Max. Cathode Indicator 0.036 (0.91 mm) Min. 0.046 (1.17 mm) Max. 0.008 Ref. 0.025 (0.635 mm) Min. 0.037 (0.940 mm) Max. Gauge Datum For Foot Length Measurement 0.005 (0.127 mm) Min. 0.008 (0.203 mm) Max. 0.010 (0.25 mm) Min. 0.018 (0.46 mm) Max. Dimensions are in inches (millimeters shown in parentheses) S1619 Figure 5. SOD-323 Package Dimensions 4.00 2.00 ± 0.05 Pin 1 Indicator Ø1.00 Min. 4.00 (See Note 4) 1.75 ± 0.10 A R0.3 Max. 3.50 ± 0.05 2.90 (Bo) 2.08 1.35 (Ko) A 1.52 (Ao) R0.5 Typ. 1.07 (K1) A 0.84 Notes: 1. Carrier tape: black conductive polystyrene. 2. Cover tape: transparent conductive PSA. 3. Cover tape size: 5.4 mm width. 4. 10 sprocket hole pitch cumulative tolerance: ±0.20 mm. 5. All measurements are in millimeters. Figure 6. SOD-323 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 8.00 +0.30/–0.10 0.30 ± 0.05 Ø1.50 +0.1/–0 August 7, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200066L S2910 DATA SHEET • SMV1281 SERIES VARACTORS Copyright © 2002-2007, 2009-2012, 2015 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. 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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200066L • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 7, 2015 7