GC1700A – GC1720
Microsemi
Microwave Products
75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748
Page 1
CONTROL DEVICES
60 Volt Abru
p
t Junction Tunin
g
Varactors
TM ®
www.MICROSEMI.com
RoHS Com
p
liant
DESCRIPTION
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.
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.
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 t ypes.
Standard capacitance tolerance is ±10%. Other capacitance values and custom
mechanical configurations are also availa ble. All specificat ions 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.
ABSOLUTE MAXIMUM RATINGS AT 25º C
(UNLESS OTHERWISE SPECIFIED)
Rating
Symbol
Value Unit
Minimum Breakdown Voltage @10 uA VB 60 V
Maximum Leakage Current
@55 Volts IR 0.02 @ 25 ºC
2.0 @125 ºC uA
Operating Temperature TOP -55 to +125 ºC
Storage Temperature TSTG -65 to +150 ºC
Thermal Coefficient of Capacitance
@4 Volts TCC 300 ppm/ ºC
IMPORTANT:
For the most current data, consult MICROSEMI’s website: www.MICROSEMI.com
Specifications are subject to change, consult the fa ctory for further information.
These devices are ESD sensitive and must be handled use using ESD precautions.
KEY FEATURES
Highest Q for 60 Volt Varactors
Lowest Rs
Large selection of capacitance
values to chose from
Low phase noise
RoHS Compliant1
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
GC1700A – GC1720
Copyright 2006
Rev: 2009-01-19
GC1700A – GC1720
Microsemi
Microwave Products
75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748
Page 2
CONTROL DEVICES
60 Volt Abru
p
t Junction Tunin
g
Varactors
TM ®
www.MICROSEMI.com
RoHS Com
p
liant
ELECTRICAL CHARACTERISTICS @ 25º C
Model Number CT -4
+ / - 10% Quality Factor3
(Min) Capacitance Ratio2
(Min)
(Note 2)
@ -4V
(pF) @-4V, 50 MHz
CT0 / CT-60
GC1700A – 00 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
GC1720 39.0 800 7.0
Notes
1) When ordering, specify the desired case style suffix to the model. (eg. GC1701 – 30)
2) Capacitance values include a package capacitance of 0.18 pF. Capacitance is measures at F = 1 MHz.
3) Q is calculated from:
a. Q =
1442/ CjfRs
b. Rs is measured using @ 1 GHz using transmission loss techniques.
c. Capacitances is measured at 1 MHz.
E
EL
LE
EC
CT
TR
RI
IC
CA
AL
LS
S
Copyright 2006
Rev: 2009-01-19
GC1700A – GC1720
Microsemi
Microwave Products
75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748
Page 3
CONTROL DEVICES
60 Volt Abru
p
t Junction Tunin
g
Varactors
TM ®
www.MICROSEMI.com
RoHS Com
p
liant
TYPICAL CJ VS REVERSE BIAS
NOTES
- CHIP DIMENSIONS VARY BY PRODUCT
- OTHER PACKAGE STYLES AVAILABLE
ON REQUEST
- CONSULT FACTORY FOR DETAILS
STYLE 00
STYLE 30
G
GR
RA
AP
PH
HS
S
Copyright 2006
Rev: 2009-01-19
