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| Abrupt Junction Tuning Varactors SMV1405-SMV1419 Features s High Q s Low Series Resistance for Low Phase Noise s Multiple Packages SOT-23, SOD-323, SC-70 and SC-79 s Designed for High Volume Commercial Applications s SPICE Models are Available Description The SMV1405-SMV1419 series of silicon abrupt junction varactor diodes are designed for use in VCOs requiring tight capacitance tolerances. The low resistance of these varactors makes them appropriate for high Q resonators in wireless system VCOs to frequencies beyond 2.5 GHz. The devices are characterized for capacitance over temperature. SPICE models are provided. Absolute Maximum Ratings Characteristic Reverse Voltage (VR) Forward Current (IF) Power Dissipation (PD) Storage Temperature (TST) Operating Temperature (TOP) Value 30 V 20 mA 250 mW -55C to +150C -55C to +125C Single SC-79 o SMV1405-079 Single SOT-23 o SMV1405-001 o SMV1408-001 o SMV1411-001 o SMV1413-001 o SMV1417-001 o SMV1419-001 Common Cathode SOT-23 Common Cathode SC-70 o SMV1405-074 o SMV1417-004 LS = 0.7 nH LS = 1.5 nH LS = 1.5 nH LS = 1.4 nH o Available through distribution. For other packages or configurations, please contact the factory. Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 1/01A 1 Abrupt Junction Tuning Varactors SMV1405-SMV1419 Electrical Specifications at 25C Part Number SMV1405 SMV1408 SMV1411 SMV1413 SMV1417 SMV1419 Reverse Voltage VR (IR = 10 A): 30 V Reverse Current IR (VR = 24 V): 20 nA CT @ 0.5 V (pF) Typ. 2.1 3.4 6.0 7.4 15.3 18.7 CT @ 1V (pF) Typ. 1.8 2.9 5.2 6.4 13.2 16.6 Min. 1.21 1.75 3.10 3.64 7.51 9.13 CT @ 4 V (pF) Max. 1.45 2.11 3.76 4.42 9.15 11.13 CT @ 0 V CT @ 30 V (Ratio) Min. 4.1 4.1 4.2 4.2 4.3 4.4 RS @ 4 V 500 MHz () Max. 0.80 0.60 0.40 0.35 0.22 0.20 Q @ 4V 50 MHz Typ. 3200 2900 2500 2400 1800 1600 Typical Performance Data 100.0 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -40 Percentage Change (%) VR = 4 V VR = 30 V Capacitance (pF) 10.0 SMV1413 SMV1417 SMV1419 SMV1411 1.0 SMV1405 SMV1408 VR = 1 V 0.1 0 5 10 15 20 25 30 -20 0 20 40 60 80 Reverse Voltage (V) Temperature (C) Capacitance vs. Reverse Voltage Relative Capacitance Change vs. Temperature Typical Capacitance Values SMV1405 VR (V) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 4.0 5.0 10.0 20.0 30.0 CT (pF) 2.67 2.12 1.84 1.70 1.55 1.44 1.34 1.25 1.17 0.95 0.77 0.63 SMV1408 CT (pF) 4.08 3.36 2.94 2.60 2.38 2.24 2.08 1.88 1.72 1.28 1.01 0.95 SMV1411 CT (pF) 7.58 6.05 5.21 4.66 4.27 4.00 3.72 3.35 3.08 2.32 1.69 1.48 SMV1413 CT (pF) 9.24 7.39 6.37 5.71 5.22 4.85 4.55 4.10 3.77 2.85 2.12 1.77 SMV1417 CT (pF) 19.20 15.30 13.16 11.76 10.74 9.95 9.32 8.35 7.64 5.62 4.09 3.79 SMV1419 CT (pF) 23.44 18.72 16.64 14.38 13.14 12.18 11.42 10.26 9.40 7.00 5.10 4.30 2 Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 1/01A Abrupt Junction Tuning Varactors SMV1405-SMV1419 SPICE Model PORT P_anode port = 1 IND LS L = LS DIODEM Diode_Model IS = 1.00e-14 RS = 0 N=1 TT = 0 CJO = CJO M=M VJ EG = 1.11 XTI = 3 KF =0 AF =1 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 SC-70 0.071 (1.80 mm) MIN. 0.087 (2.20 mm) MAX. 0.010 (0.25 mm) MIN. 0.016 (0.40 mm) MAX. 0.071 (1.80 mm) MIN. 0.094 (2.40 mm) MAX. 3 0.045 (1.15 mm) MIN. 0.053 (1.35 mm) MAX. 1 0.014 (0.35 mm) REF. 2 0.026 (0.65 mm) REF. RES RS R = RS DIODE Varactor_Diode AREA = 1 MODEL = Diode_Model MODE = nonlinear CAP CP C = CP 0.051 (1.30 mm) REF. 0.004 (0.10 mm) MIN. 0.007 (0.18 mm) MAX. 0.031 (0.80 mm) MIN. 0.039 (1.00 mm) MAX. 0.004 (0.10 mm) MIN. 0.012 (0.30 mm) MAX. 0.000 (0.00 mm) MIN. 0.004 (0.10 mm) MAX. PORT P_Cathode port = 2 SOD-323 0.090 (2.30 mm) MIN. 0.108 (2.74 mm) MAX. 0.010 (0.25 mm) MIN. 0.016 (0.40 mm) MAX. 0.063 (1.60 mm) MIN. 0.071 (1.80 mm) MAX. Part Number SMV1405 SMV1408 SMV1411 SMV1413 SMV1417 SMV1419 CJO (pF) 2.92 3.70 7.57 9.20 19.20 23.40 VJ (V) 0.68 0.80 0.80 0.79 0.84 0.87 M 0.41 0.48 0.45 0.45 0.48 0.54 CP (pF) 0.05 0.13 0.13 0.13 0.13 0.13 RS () 0.80 0.60 0.40 0.35 0.22 0.20 0.045 (1.15 mm) MIN. 0.053 (1.35 mm) MAX. 1 2 CATHODE INDICATOR 1. Values extracted from measured performance. 2. For package inductance (LS) refer to package type. 3. For more details refer to the "Varactor SPICE Models for RF VCO Applications" Application Note. 0.008 (0.20 mm) NOM. 0.006 (0.15 mm) TYP. 0.050 (1.25 mm) MAX. 0.004 (0.10 mm) MAX. SOT-23 0.110 (2.80 mm) MIN. 0.120 (3.04 mm) MAX. 3 0.010 (0.25 mm) MIN. 0.012 (0.30 mm) MIN. 0.020 (0.50 mm) MAX. 0.047 (1.20 mm) MIN. 0.055 (1.40 mm) MAX. 1 2 SC-79 CATHODE 0.006 (0.15 mm) MIN. INDICATOR 0.010 (0.25 mm) MIN. 0.014 (0.35 mm) MAX. 1 2 0.083 (2.10 mm) MIN. 0.104 (2.64 mm) MAX. 0.037 (0.95 mm) REF. 0.020 (0.51 mm) REF. 0.076 (1.92 mm) REF. 0.003 (0.080 mm) MIN. 0.008 (0.20 mm) MAX. 8 MAX. 0.035 (0.89 mm) MIN. 0.044 (1.12 mm) MAX. 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. 0.020 (0.50 mm) MIN. 0.028 (0.70 mm) MAX. 10 MAX. 0.022 (0.55 mm) REF. 0.0005 (0.01 mm) MIN. 0.004 (0.10 mm) MAX. 10 MAX. 0.003 (0.07 mm) MIN. 0.008 (0.20 mm) MAX. Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 1/01A 3 |
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