•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.macomtech.com for additional data sheets and product information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
1
GaAs Hyperabrupt Varactor Diode
Gamma = 1.0, 1.25, & 1.50 Rev. V6
MA46410 thru MA46485 Series
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology 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 M/A-COM Technology
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.
Commitment 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
•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.macomtech.com for additional data sheets and product information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
2
GaAs Hyperabrupt Varactor Diode
Gamma = 1.0, 1.25, & 1.50 Rev. V6
MA46410 thru MA46485 Series
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology 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 M/A-COM Technology
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.
Commitment to produce in volume is not guaranteed.
Electrical Specifications @ TA= +25 °C
MA46450 Series Gamma = 1.0 4
Gamma4= 0.9 - 1.1, VR = 2 - 20 Volts
Junction Capacitance Ratio (CJ2/CJ20) = 5.0 - 8.0
Breakdown Voltage @ IR= 10µA, Vb= 22 V Min
Reverse Leakage Current @ VR=18V, IR= 100 nA Max
Part
Number
Case
Style2
Total
Capaci-
tance2,3,4,5
+/-10%
Total
Capacitance
Ratio7
Q
Minimum
Vr=4 V Vr=2 V
Vr=20 V
Vr=4 V
f=50 MHz
(pF) - -
MA46450 30 0.5 2.0-3.8 4000
MA46451 30 0.7 2.9-4.4 4000
MA46452 30 1.0 3.6-5.2 3000
MA46457 30 2.2 4.1-6.1 3000
MA46461 30 4.7 4.8-7.2 1500
Part
Number
Case
Style2
Total
Capaci-
tance3,7,8
Total
Capacitance
Ratio7
Q
Minimum
Vr=4 V Vr=2 V
Vr=12 V
Vr=4 V
f=50 MHz
(pF) - -
MA46410 30 0.45-0.60 2.7-4.3 3000
MA46413 30 0.90-1.10 4.2-5.7 2500
MA46416 30 1.62-1.98 5.2-4.9 2500
MA46418 30 2.42-2.97 5.7-7.6 1800
MA46420 30 3.33-4.22 6.0-8.1 1800
MA46425 30 9.00-11.00 6.6-8.8 1200
Electrical Specifications @ TA= +25°C
MA46410 thru MA46425 Series Gamma = 1.54
Gamma4= 1.4-1.6 VR = 2 - 12 Volts
Junction Capacitance Ratio (CJ2/CJ12) = 6.2-10.8
Breakdown Voltage @ IR= 10µA, Vb= 18 V Min
Reverse Leakage Current @ VR=10V, IR= 100 nA Max
Electrical Specifications @ TA= +25 °C
MA46470 thru MA46485 Series Gamma = 1.25 4
Gamma4= 1.13-1.38, VR = 2 - 20 Volts
Junction Capacitance Ratio (CJ2/CJ20) = 8.15-12.99
Breakdown Voltage @ IR= 10µA, Vb= 22 V Min
Reverse Leakage Current @ VR=18V, IR= 100 nA Max
Part
Number
Case
Style2
Total
Capaci-
tance2,3,4,5
+/-10%
Total
Capacitance
Ratio7
Q
Minimum
Vr=4 V Vr=2 V
Vr=20 V
Vr=4 V
f=50 MHz
(pF) - -
MA46470 30 0.5 2.2/4.1 4000
MA46471 30 0.7 3.6/5.6 4000
MA46472 30 1.0 4.8/7.4 3000
MA46473 30 1.2 4.8/7.4 3000
MA46474 30 1.5 5.0/7.4 3000
MA46475 30 1.8 6.6/8.7 3000
MA46476 30 2.0 6.6/8.7 3000
MA46477 30 2.2 6.6/8.7 3000
MA46479 30 3.3 6.4/10.0 2000
MA46480 30 3.7 6.8/11.0 2000
MA46481 30 5.1 6.9/11.1 1500
MA46483 30 6.8 7.2/11.5 1500
MA46485 30 10.0 7.5/12.0 1500
1. All GaAs tuning varactors are available in chip form as well
as the case styles shown on the following page. When
ordering, specify the desired case by adding the case des-
ignation as a suffix to the type number.
2. Case parasitics (Cp and Ls) are given for most case styles
along with case outlines in the appendix. The Cp values
listed typically have tolerances of ±0.02 pF.
3. The nominal tolerance at -4 Volts is ± 10%. Closer toler-
ances are available upon request. By adding the suffix A to
the part number, a tolerance of ± 5% at -4 Volts is guaran-
teed.
4. The values guaranteed for gamma are measured on un-
packaged chips. The total capacitance versus bias voltage
curve will deviate slightly from the chip capacitance versus
bias voltage curve due to the package parasitic capaci-
tance (Cp).
5. Capacitance is measured at 1 MHz.
6. Reverse voltage (VB) is measured at 10 microamps.
7. The total capacitance and capacitance ratios shown are for
diodes housed in case style 30. Other case styles will re-
sult in different values.
•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.macomtech.com for additional data sheets and product information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
3
GaAs Hyperabrupt Varactor Diode
Gamma = 1.0, 1.25, & 1.50 Rev. V6
MA46410 thru MA46485 Series
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology 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 M/A-COM Technology
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.
Commitment to produce in volume is not guaranteed.
Typical Performance Curves
•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.macomtech.com for additional data sheets and product information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
4
GaAs Hyperabrupt Varactor Diode
Gamma = 1.0, 1.25, & 1.50 Rev. V6
MA46410 thru MA46485 Series
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology 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 M/A-COM Technology
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.
Commitment to produce in volume is not guaranteed.
Typical Performance Curves
•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.macomtech.com for additional data sheets and product information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
5
GaAs Hyperabrupt Varactor Diode
Gamma = 1.0, 1.25, & 1.50 Rev. V6
MA46410 thru MA46485 Series
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology 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 M/A-COM Technology
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.
Commitment to produce in volume is not guaranteed.
ODS-134 Die
Typical Coplanar Packages
Case Styles (Dimensions are available upon request)
Typical Coaxial Packages
Environmental Ratings PER MIL-STD-750
Method Level
Storage Temperature 1031 See Max. Ratings
Temperature Cycle 1051 10 cycles, -65°C to +175°C
Shock 2016 500 g’s
Vibration 2056 15 g’s
