MICROSEMI GC1708

GC1700A – GC1720
®
TM
CONTROL DEVICES
60 Volt Abrupt Junction Tuning Varactors
RoHS Compliant
DESCRIPTION
KEY FEATURES
The GC1700 series varactors are silicon abrupt junction devices. They offer the
highest Q and lowest series resistance available in a 60 Volt silicon varactor.
 Highest Q for 60 Volt Varactors
This series of diodes meets RoHS requirements per EU Directive 2002/95/EC.
The standard terminal finish is gold unless otherwise specified. Consult the
factory if you have special requirements.
www.MICROSEMI.com
 Lowest Rs
 Large selection of capacitance
values to chose from
 Low phase noise
 RoHS Compliant1
APPLICATIONS
The GC1700 series varactors are used for moderate bandwidth 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. Additionally, due to their higher VB, they
offer superior, low IMD performance over lower voltage types.
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 0.18 pF case capacitance. Consult package outline
section of this catalog for other case styles available. Complete electrical and
mechanical data are also provided.
1
Most or our devices are supplied with
Gold plated terminations. Other
terminal finishes are available on
request. Consult factory for details.
APPLICATIONS/BENEFITS
 VHF to Ku Band Tuning
 VVF (Voltage Variable Filters)
 Phase Shifters
ABSOLUTE MAXIMUM RATINGS AT 25º C
(UNLESS OTHERWISE SPECIFIED)
Rating
Symbol
Value
Unit
Minimum Breakdown Voltage @10 uA
Maximum Leakage Current
@55 Volts
Operating Temperature
VB
V
uA
TOP
60
0.02 @ 25 ºC
2.0 @125 ºC
-55 to +125
TSTG
-65 to +150
ºC
TCC
300
ppm/ ºC
Storage Temperature
Thermal Coefficient of Capacitance
@4 Volts
IR
ºC
GC1700A – GC1720
IMPORTANT:
For the most current data, consult MICROSEMI’s website: www.MICROSEMI.com
Specifications are subject to change, consult the factory for further information.
These devices are ESD sensitive and must be handled use using ESD precautions.
Copyright  2006
Rev: 2009-01-19
Microsemi
Microwave Products
75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748
Page 1
GC1700A – GC1720
®
TM
CONTROL DEVICES
60 Volt Abrupt Junction Tuning Varactors
RoHS Compliant
www.MICROSEMI.com
ELECTRICAL CHARACTERISTICS @ 25º C
Quality Factor3
Capacitance Ratio2
CT -4
(Min)
(Min)
+ / - 10%
Model Number
(Note 2)
GC1700A – 00
@ -4V
(pF)
@-4V, 50 MHz
CT0 / CT-60
0.6
2200
4.5
GC1700
0.8
2100
4.6
GC1701
1.0
2000
4.8
GC1702
1.2
1800
5.0
GC1703
1.5
1800
5.3
GC1704
1.8
1700
5.5
GC1705
2.2
1700
5.8
GC1706
2.7
1600
5.9
GC1707
3.3
1600
6.0
GC1708
3.9
1400
6.0
GC1709
4.7
1400
6.5
GC1710
5.6
1400
6.5
GC1711
6.8
1300
6.5
GC1712
8.2
1300
7.0
GC1713
10.0
1200
7.0
GC1714
12.0
1200
7.0
GC1715
15.0
1100
7.0
GC1716
18.0
1000
7.0
GC1717
22.0
1000
7.0
GC1718
27.0
900
7.0
GC1719
33.0
800
7.0
800
7.0
GC1720
39.0
Notes
1)
2)
3)
When ordering, specify the desired case style suffix to the model. (eg. GC1701 – 30)
Capacitance values include a package capacitance of 0.18 pF. Capacitance is measures at F = 1 MHz.
Q is calculated from:
Q=
b.
c.
Rs is measured using @ 1 GHz using transmission loss techniques.
Capacitances is measured at 1 MHz.
Microsemi
Microwave Products
75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748
ELECTRICALS
Copyright  2006
Rev: 2009-01-19
1 / 2fRs 4Cj 4
a.
Page 2
GC1700A – GC1720
®
TM
CONTROL DEVICES
60 Volt Abrupt Junction Tuning Varactors
RoHS Compliant
TYPICAL CJ VS REVERSE BIAS
NOTES
-
STYLE 00
CHIP DIMENSIONS VARY BY PRODUCT
OTHER PACKAGE STYLES AVAILABLE
ON REQUEST
CONSULT FACTORY FOR DETAILS
www.MICROSEMI.com
-
STYLE 30
GRAPHS
Copyright  2006
Rev: 2009-01-19
Microsemi
Microwave Products
75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748
Page 3