MICROSEMI GC1507

TOC
Tuning Varactors
30 VOLT ABRUPT JUNCTION VARACTOR DIODES
DESCRIPTION
RATINGS
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.
Minimum Voltage Breakdown: 30 V at 10µA
APPLICATIONS
Capacitance-Temp. Coefficient: 300 ppm/ºC at VR=-4V
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.
Operating Temperature:
-55ºC to +150ºC
Storage Temperature:
-65ºC to +200ºC
Maximum Leakage Current at:
25 V and 25ºC
0.02 µA
25 V and 125ºC
2.00 µA
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 Technology Drive • Lowell, MA 01851 • Tel: 978-442-5600 • Fax: 978-937-3748
15
TOC
Tuning Varactors
30 VOLT ABRUPT JUNCTION VARACTOR DIODES
ELECTRICAL SPECIFICATIONS: TA = 25°C
MODEL NUMBER1
TOTAL CAPACITANCE2
(AT-4V, 1 MHz)
Ct-4 (pF)
QUALITY FACTOR3
(AT-4V, 50 MHz)
Q-4 (MIN)
CAPACITANCE RATIO2
CT0/CT30 (MIN)
GC1500A4
GC1500B
GC1500
GC1501
GC1502
GC1503
GC1504
GC1505
GC1506
GC1507
GC1508
GC1509
GC1510
GC1511
GC1512
GC1513
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
5000
4000
3900
3800
3800
3600
3500
3500
3300
3100
2700
2600
2600
2400
2200
2200
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
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 PF.
1
3. Q is calculated from: Q=
2
πfRSC
where f=50 MHz and
j
Rs = 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 Technology Drive • Lowell, MA 01851 • Tel: 978-442-5600 • Fax: 978-937-3748
16