Abrupt Junction Tuning Varactors SMV1405–SMV1419 Features ■ High Q ■ Low Series Resistance for Low Phase Noise ■ Multiple Packages SOT-23, SOD-323, SC-70 and SC-79 ■ Designed for High Volume Commercial Applications ■ SPICE Models are Available Absolute Maximum Ratings 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. Characteristic Reverse Voltage (VR) Forward Current (IF) Power Dissipation (PD) Value 30 V 20 mA 250 mW Storage Temperature (TST) -55°C to +150°C Operating Temperature (TOP) -55°C to +125°C Single Single Common Cathode Common Cathode SC-79 SOT-23 SOT-23 SC-70 ♦ SMV1405-079 ♦ SMV1405-001 ♦ SMV1405-074 ♦ SMV1408-001 ♦ SMV1411-001 ♦ SMV1413-001 ♦ SMV1417-001 ♦ SMV1417-004 ♦ SMV1419-001 LS = 0.7 nH LS = 1.5 nH LS = 1.5 nH LS = 1.4 nH ♦ Available through distribution. For other packages or configurations, please contact the factory. Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 1/01A 1 Abrupt Junction Tuning Varactors SMV1405–SMV1419 Electrical Specifications at 25°C Part Number CT @ 0.5 V (pF) CT @ 1V (pF) CT @ 4 V (pF) CT @ 0 V CT @ 30 V (Ratio) RS @ 4 V 500 MHz Ω) (Ω Q @ 4V 50 MHz Typ. Typ. Min. Max. Min. Max. Typ. SMV1405 2.1 1.8 1.21 1.45 4.1 0.80 3200 SMV1408 3.4 2.9 1.75 2.11 4.1 0.60 2900 SMV1411 6.0 5.2 3.10 3.76 4.2 0.40 2500 SMV1413 7.4 6.4 3.64 4.42 4.2 0.35 2400 SMV1417 15.3 13.2 7.51 9.15 4.3 0.22 1800 SMV1419 18.7 16.6 9.13 11.13 4.4 0.20 1600 Reverse Voltage VR (IR = 10 µA): 30 V Reverse Current IR (VR = 24 V): 20 nA Typical Performance Data SMV1413 10.0 Percentage Change (%) Capacitance (pF) 100.0 SMV1417 SMV1419 SMV1411 1.0 SMV1405 SMV1408 0.1 0 5 10 15 20 25 30 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 VR = 4 V VR = 30 V VR = 1 V -40 -20 0 20 40 60 80 Reverse Voltage (V) Temperature (˚C) Capacitance vs. Reverse Voltage Relative Capacitance Change vs. Temperature Typical Capacitance Values 2 SMV1405 SMV1408 SMV1411 SMV1413 SMV1417 SMV1419 VR (V) CT (pF) CT (pF) CT (pF) CT (pF) CT (pF) CT (pF) 0.0 2.67 4.08 7.58 9.24 19.20 23.44 0.5 2.12 3.36 6.05 7.39 15.30 18.72 1.0 1.84 2.94 5.21 6.37 13.16 16.64 1.5 1.70 2.60 4.66 5.71 11.76 14.38 2.0 1.55 2.38 4.27 5.22 10.74 13.14 2.5 1.44 2.24 4.00 4.85 9.95 12.18 3.0 1.34 2.08 3.72 4.55 9.32 11.42 4.0 1.25 1.88 3.35 4.10 8.35 10.26 5.0 1.17 1.72 3.08 3.77 7.64 9.40 10.0 0.95 1.28 2.32 2.85 5.62 7.00 20.0 0.77 1.01 1.69 2.12 4.09 5.10 30.0 0.63 0.95 1.48 1.77 3.79 4.30 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 1/01A Abrupt Junction Tuning Varactors SMV1405–SMV1419 SPICE Model SC-70 0.071 (1.80 mm) MIN. 0.087 (2.20 mm) MAX. PORT P_anode port = 1 IND LS L = LS RES RS R = RS 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 CAP CP C = CP DIODE Varactor_Diode AREA = 1 MODEL = Diode_Model MODE = nonlinear PORT P_Cathode port = 2 Part Number CJO (pF) VJ (V) M CP (pF) RS Ω) (Ω SMV1405 2.92 0.68 0.41 0.05 0.80 SMV1408 3.70 0.80 0.48 0.13 0.60 SMV1411 7.57 0.80 0.45 0.13 0.40 SMV1413 9.20 0.79 0.45 0.13 0.35 SMV1417 19.20 0.84 0.48 0.13 0.22 SMV1419 23.40 0.87 0.54 0.13 0.20 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. 0.010 (0.25 mm) MIN. 0.016 (0.40 mm) MAX. 3 0.071 (1.80 mm) MIN. 0.094 (2.40 mm) MAX. 0.045 (1.15 mm) MIN. 0.053 (1.35 mm) MAX. 2 1 0.014 (0.35 mm) REF. 0.026 (0.65 mm) REF. 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. SOD-323 0.090 (2.30 mm) MIN. 0.108 (2.74 mm) MAX. 0.045 (1.15 mm) MIN. 0.053 (1.35 mm) MAX. 1 0.010 (0.25 mm) MIN. 0.016 (0.40 mm) MAX. 2 0.063 (1.60 mm) MIN. 0.071 (1.80 mm) MAX. CATHODE INDICATOR 0.008 (0.20 mm) NOM. 0.050 (1.25 mm) MAX. 0.006 (0.15 mm) TYP. 0.004 (0.10 mm) MAX. SOT-23 0.010 (0.25 mm) MIN. 0.110 (2.80 mm) MIN. 0.120 (3.04 mm) MAX. 0.012 (0.30 mm) MIN. 0.020 (0.50 mm) MAX. 3 0.083 (2.10 mm) MIN. 0.104 (2.64 mm) MAX. SC-79 CATHODE 0.006 (0.15 mm) MIN. INDICATOR 0.047 (1.20 mm) MIN. 0.055 (1.40 mm) MAX. 1 2 0.010 (0.25 mm) MIN. 0.014 (0.35 mm) MAX. 0.037 (0.95 mm) REF. 0.020 (0.51 mm) REF. 1 2 0.028 (0.70 mm) MIN. 0.035 (0.90 mm) MAX. 0.076 (1.92 mm) REF. 0.003 (0.080 mm) MIN. 0.008 (0.20 mm) MAX. 0.060 (1.50 mm) MIN. 0.067 (1.70 mm) MAX. 0.035 (0.89 mm) MIN. 0.044 (1.12 mm) MAX. 0.043 (1.10 mm) MIN. 0.051 (1.30 mm) MAX. 8˚ MAX. 0.022 (0.55 mm) REF. 0.0005 (0.01 mm) MIN. 0.004 (0.10 mm) MAX. 0.020 (0.50 mm) MIN. 0.028 (0.70 mm) MAX. 10˚ MAX. 0.003 (0.07 mm) MIN. 0.008 (0.20 mm) MAX. 10˚ MAX. Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 1/01A 3