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| Hyperabrupt Junction Tuning Varactor SMV1245-011 Features s High Tuning Ratio s Low Series Resistance s SOD-323 Package s Designed for High Volume, Low Cost Applications s Available in Tape and Reel Packaging Description The SMV1245-011 is a surface mount varactor diode in the SOD-323 plastic package. It is designed for very low series resistance applications such as RF and microwave VCOs. Absolute Maximum Ratings Characteristic Forward Current (IF) Power Dissipation (PD) Storage Temperature (TST) Operating Temperature (TOP) Value 20 mA 250 mW -55C to +150C -55C to +125C Electrical Specifications at 25C Parameter Breakdown Voltage (VBR) Reverse Current (IR) Capacitance (CT) Capacitance Ratio (CTR) Capacitance Ratio (CTR) Series Resistance (RS) IR = 10 A VR = 10 V CT @ 1 V, VR = 1 V, F = 1 MHz CT (1 V)/CT (3 V) CT (1 V)/CT (9 V) VR = 1 V, F = 500 MHz 4.40 1.47 3.50 Condition Frequency Min. 26.00 50.00 5.40 1.76 4.20 2.00 Typ. Max. Unit V nA pF Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 5/99A 1 Hyperabrupt Junction Tuning Varactor SMV1245-011 Typical Performance Data 10 Capacitance vs. Voltage VR (V) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 CT (pF) 7.37 5.84 4.93 4.28 3.79 3.40 3.06 2.76 2.51 2.28 2.09 1.92 1.78 1.66 1.55 1.46 1.38 1.32 1.26 1.20 1.16 1.12 1.08 1.05 1.02 Capacitance (pF) 1 4.0 0 1 2 3 4 5 6 7 8 9 10 11 12 4.5 5.0 5.5 6.0 Varactor Voltage (V) Capacitance vs. Voltage SOD-323 0.090 (2.30 mm) MIN. 0.108 (2.70 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. 6.5 7.0 7.5 8.0 8.5 9.0 9.5 CATHODE INDICATOR 0.045 (1.15 mm) MIN. 0.053 (1.35 mm) MAX. 1 2 10.0 10.5 11.0 0.008 (0.20 mm) NOM. 0.006 (0.15 mm) TYP. 0.050 (1.25 mm) MAX. 11.5 12.0 0.004 (0.10 mm) MAX. 0.010 (0.25 mm) MIN. 2 Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 5/99A |
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