M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
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.
RoHs Compliant
GaAs Hyperabrupt Varactor Diode
Gamma= 1.0, 1.25 & 1.50 V4
MA46410 thru MA46480 Series
1
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, MA46 47 0 and MA 46 41 0 series of tun-
ing varactors are hyperabrupt junction Gallium Ar-
senide diodes featuring constant gamma 1.0 (MA46450
series),1.25 (MA46470 series) or 1.5 (MA46410 se-
ries). These diodes offer high Q (up to 4000) permit-
ting excellent tuning performance from VHF through
Ka band. Each part in this series exhibits the large
change in capacitance versus bias voltage characteristic
of hyperabrupt junctions. The standard capacitance
tolerance is ±10%, with tighter tolerances available.
Capacitance m atchin g at o ne or more bias volta ges is
also available. All diode types are available ina wide
selection of ceramic packages and in chip form.
The constant gamm a value of 1.0, 1. 25 or 1.5 avai lable
with these diodes enables the circuit designer to pro-
duce significant improvements in circuit performance.
Constant gamma tuning varactors permit more linear
VCO frequency tuning than do conventional hy-
perabrupt tuning varactors.These varactors are particu-
larly well suited for use in voltage tuned filters, analog
phase shifters, and modulator circuits.
Absolute Maximum Ratings @ TA=+25 °C
(Unless Otherwise Noted) 1
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
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
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.
RoHs Compliant
GaAs Hyperabrupt Varactor Diode
Gamma= 1.0, 1.25 & 1.50 V4
MA46410 thru MA46480 Series
2
Electrical Specifications @ TA = +25 °C
MA46450 Series Gamma = 1.04
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
Style
Total
Capaci-
tance2,3,5,7
+/-10%
Total
Capaci-
tance Ratio
Q
Minimum
Vr=4V Vr=2V
Vr=20V Vr=4V
f=50MHz
(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
Style
Total
Capaci-
tance2,6,7
Total
Capaci-
tance Ratio
Q
Minimum
Vr=4V Vr=2V
Vr=12V Vr=4V
f=50MHz
(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 = 1.254
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
Style
Total
Capaci-
tance2,3,5,7
Total
Capaci-
tance Ratio
Q
Minimum
Vr=4V Vr=2V
Vr=20V Vr=4V
f=50MHz
(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 4.7 6.9/11.1 1500
MA46483 30 6.8 7.2/11.5 1500
MA46485 30 10.0 7.5/12.0 1500
Notes:
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 designation 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 toler-
ances of ± 0.02 pF.
3. The nominal tolerance at -4 Volts is ± 10%. Closer tolerances are
available upon request. By adding the suffix A to the part number, a
tolerance of ± 5% at -4 Volts is guaranteed.
4. The values guaranteed for gamma are measured on unpackaged
chips. The total capacitance versus bias voltage curve will deviate
slightly from the chip capacitance versus bias voltage curve due to the
package parasitic capacitance (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
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
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.
RoHs Compliant
GaAs Hyperabrupt Varactor Diode
Gamma= 1.0, 1.25 & 1.50 V4
MA46410 thru MA46480 Series
3
Typical Performance Curves
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
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.
RoHs Compliant
GaAs Hyperabrupt Varactor Diode
Gamma= 1.0, 1.25 & 1.50 V4
MA46410 thru MA46480 Series
4
Typical Performance Curves
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
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.
RoHs Compliant
GaAs Hyperabrupt Varactor Diode
Gamma= 1.0, 1.25 & 1.50 V4
MA46410 thru MA46480 Series
5
Environmental Ratings PER MIL-STD-750
Method Level
Storage Temperature 1031 See maximum ratings
Temperature Cycle 1051 10 cycles, -65°C to +175°C
Shock 2016 500 g’s
Vibration 2056 15 g’s
ODS-134 Die
Case Styles (Dimensions are available upon request)
Typical Coaxial Packages
Typical Coplanar Packages