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| TOC Tuning Varactors 30 VOLT ABRUPT JUNCTION VARACTOR DIODES DESCRIPTION The GC1500 series varactors are silicon abrupt junction devices. They offer the highest Q and lowest series resistance available in a 30 Volt silicon varactor. RATINGS Minimum Voltage Breakdown: 30 V at 10A Maximum Leakage Current at: 25 V and 25C 0.02 A 25 V and 125C 2.00 A Capacitance-Temp. Coefficient: 300 ppm/C at VR=-4V Operating Temperature: Storage Temperature: -55C to +150C -65C to +200C APPLICATIONS The GC1500 series varactors are used for narrow to moderate band width tuning. They are available in values appropriate for VHF through KU band frequencies. These devices are best used in low phase noise voltage controlled oscillators, low loss voltage variable filters and phase shifters. Standard capacitance tolerance is 10% Other capacitance values and custom mechanical configurations are also available. All specifications shown are based on style 30 package and include .18 pF case capacitance. Consult package outline section of this catalog for other case styles available. Complete electrical and mechanical data is also provided. Typical Junction Capacitance vs Reverse Bias SEMICONDUCTOR OPERATION 75 T echnology Drive Lowell, MA 01851 T el: 978-442-5600 Fax: 978-937-3748 15 TOC Tuning Varactors 30 VOLT ABRUPT JUNCTION VARACTOR DIODES ELECTRICAL SPECIFICATIONS: TA = 25C MODEL NUMBER1 GC1500A4 GC1500B GC1500 GC1501 GC1502 GC1503 GC1504 GC1505 GC1506 GC1507 GC1508 GC1509 GC1510 GC1511 GC1512 GC1513 NOTES: 1. When ordering, specify the desired case style by adding its number as a suffix to the model number . Some limitations apply - consult factory for details. . 2. These values include a package capacitance of .18 P. 3. Q is calculated from: Q= 1 2fR5C j TOTAL CAPACITANCE2 (AT-4V, 1 MHz) Ct-4 (pF) 0.4 0.6 0.8 1.0 1.2 1.5 1.8 2.2 2.7 3.3 3.9 4.7 5.6 6.8 8.2 10.0 QUALITY FACTOR3 (AT-4V, 50 MHz) Q-4 (MIN) 5000 4000 3900 3800 3800 3600 3500 3500 3300 3100 2700 2600 2600 2400 2200 2200 CAPACITANCE RATIO2 CT0/CT30 (MIN) 4.2 3.0 3.3 3.4 3.4 3.5 3.5 3.7 3.7 3.8 3.9 3.9 4.0 4.0 4.0 4.2 where f=50 MHz and RI = Series resistance measured a 1 GHz using transmission loss techniques. Capacitance is measured at 1 MHz. 4. GC1500A only available in Die Form. SEMICONDUCTOR OPERATION 75 T echnology Drive Lowell, MA 01851 T el: 978-442-5600 Fax: 978-937-3748 16 |
Price & Availability of GC1500
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