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1
GaAs Hyperabrupt Varactor Diode
Gamma = 1.0, 1.25, & 1.50
M/A-COM Products
Rev. V5
MA46410 thru MA46480 Series
North America Tel: 800.366.2266 / Fax: 978.366.2266
Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
MA-COM Technical Solutions and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice.
ADVANCED: Data Sheets contain information regarding a product MA-COM Technical Solutions is
considering for development. Performance is based on target specifications, simulated results, and/
or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product MA-COM Technical Solutions
has under development. Performance is based on engineering tests. Specifications are typical.
Mechanical outline has been fixed. Engineering samples and/or test data may be available. Commit-
ment to produce in volume is not guaranteed.
Features
Constant Gamma = 1.0, 1.25 or 1.5
High Q (up to 4000 at -4 Volts)
More Linear Frequency Tuning
High and Nearly Constant Modulation Sensitivity
Lead-Free (RoHs Compliant) equivalents avail-
able with 260°C reflow compatibility.
Description and Applications
The MA46450, MA46470 and MA46410 series of
tuning varactors are hyperabrupt junction Gallium
Arsenide diodes featuring constant gamma 1.0
(MA46450 series),1.25 (MA46470 series) or 1.5
(MA46410 series). These diodes offer high Q (up
to 4000) permitting excellent tuning performance
from VHF through Ka band. Each part in this se-
ries exhibits the large change in capacitance ver-
sus bias voltage characteristic of hyperabrupt junc-
tions. The standard capacitance tolerance is
±10%, with tighter tolerances available. Capaci-
tance matching at one or more bias voltages is
also available. All diode types are available in a
wide selection of ceramic packages and in chip
form. The constant gamma value of 1.0, 1.25 or
1.5 available with these diodes enables the circuit
designer to produce significant improvements in
circuit
performance.
Constant
gamma
tuning
varactors permit more linear VCO frequency tun-
ing than do conventional hyperabrupt tuning varac-
tors.These varactors are particularly well suited for
use in voltage tuned filters, analog phase shifters,
and modulator circuits.
Absolute Maximum Ratings
1
@ TA=+25 °C (Unless Otherwise Noted)
1. Operation of this device above any one of these parameters
may cause permanent damage.The maximum storage and
operating temperature of the plastic ODS-1088 case style is
125°C.
Parameter
Absolute Maximum
Reverse Voltage
Breakdown Voltage
Operating Temperature
-65°C to +175°C
Storage Temperature
65°C to +200°C
Common Case styles
ODS-30
ODS-134 Die