Hyperabrupt Junction Tuning Varactor SMV1283-011 Features ■ High Tuning Ratio ■ SOD-323 Package ■ Designed for High Volume, Low Cost Applications ■ Available in Tape and Reel Packaging Description The SMV1283-011 is a surface mount varactor diode in the SOD-323 plastic package. It is designed for very high capacitance tuning ratio while having low series resistance, which makes this device especially attractive for wideband VCO applications. Absolute Maximum Ratings Characteristic Value Forward Current (IF) 20 mA Power Dissipation (PD) 250 mW Storage Temperature (TST) -55°C to +150°C Operating Temperature (TOP) -55°C to +125°C Electrical Specifications at 25°C Parameter Condition Min. Typ. Max. Unit 20.00 nA Reverse Current (IR) VR = 26 V Capacitance (CT) CT @ 1 V, VR = 1 V, F = 1 MHz 8.5 9.10 9.70 pF Capacitance (CT) CT @ 26 V, VR = 26 V, F = 1 MHz 0.5 0.62 0.75 pF Capacitance Ratio (CTR) CT (1 V)/CT (26 V) 14.70 Series Resistance (RS) VR = 1 V, F = 500 MHz 2.40 Breakdown Voltage (VBR) IR = 10 µA 28.0 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 6/99A Ω V 1 Hyperabrupt Junction Tuning Varactor SMV1283-011 Typical Performance Data Capacitance vs. Voltage Capacitance (pF) 100.0 VR (V) CT (pF) 0 18.8820 1 8.7000 2 6.1400 3 4.3300 4 2.9500 5 2.0400 6 1.5680 7 1.3250 8 1.1880 10.0 1.0 0.1 0 5 10 15 20 25 30 9 1.0870 Varactor Voltage (V) 10 1.0123 Capacitance vs. Voltage 12 0.9040 14 0.8295 16 0.7720 18 0.7280 20 0.6880 22 0.6580 24 0.6230 26 0.6160 28 0.6060 30 0.6040 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 CATHODE INDICATOR 0.063 (1.60 mm) MIN. 0.071 (1.80 mm) MAX. 0.008 (0.20 mm) NOM. 0.006 (0.15 mm) TYP. 0.050 (1.25 mm) MAX. SPICE Model PORT P_anode port = 1 0.004 (0.10 mm) MAX. IND LS L = LS 0.010 (0.25 mm) MIN. RES RS R = RS CAP CP C = CP DIODE Varactor_Diode AREA = 1 MODEL = Diode_Model MODE = nonlinear PORT P_Cathode port = 2 2 DIODEM Diode_Model IS = 1.00e-14 RS = 0 N=1 TT = 0 CJO = CJO M=M 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 Part Number CJ0 (pF) VJ (V) M CP (pF) RS Ω) (Ω LS (nH) SMV1283-011 19 3 2.6 0.58 2.4 1.7 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 6/99A