SMV1129

Hyperabrupt Junction Tuning Varactors SMV1129 and SMV1139 Features I High Q I Low Series Resistance for Low Phase Noise I Multiple Packages SOD-323, SC-79 and SC-70 I Designed for High Volume Commercial Applications I SPICE Models are Available Description The SMV1129 and SMV1139 silicon hyperabrupt junction varactor diodes are designed for use in VCOs requiring low resistance. The low resistance of these varactors makes them appropriate for high Q resonators in wireless system VCOs to frequencies beyond 2.5 GHz. Absolute Maximum Ratings Characteristic Forward Current (IF) Power Dissipation (PD) Storage Temperature (TST) Operating Temperature (TOP) Value 20 mA 250 mW -55°C to +150°C -55°C to +125°C Single SOD-323 o SMV1129-011 o SMV1139-011 LS = 1.5 nH o Available through distribution. For other packages or configurations, please contact the factory. Single SC-79 o SMV1129-079 o SMV1139-079 LS = 0.7 nH Common Anode SC-70 SMV1129-073 LS = 1.4 nH Electrical Specifications at 25°C Part Number Min. SMV1129 SMV1139 Reverse Voltage VR (IR = 10 µA): 12 V Reverse Current IR (VR = 10 V): 20 nA CT @ 1 V (pF) Typ. 19.0 5.4 Max. 20.50 5.85 17.50 4.95 1.4 1.4 CT @ 1 V CT @ 3 V (Ratio) Min. Typ. 1.53 1.53 Min. 2.0 2.0 CT @ 1 V CT @ 6 V (Ratio) Typ. 2.5 2.5 RS @ 1 V 500 MHz (Ω) Max. 0.4 0.6 Alpha Industries, Inc. [781] 935-5150 Fax [617] 824-4579 Email [email protected] www.alphaind.com Specifications subject to change without notice. 10/99A 1 Hyperabrupt Junction Tuning...