RoHs Compliant
GaAs Hyperabrupt Varactor Diode
Gamma= 1.0, 1.25 & 1.50
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.
MA46410 thru MA46480 Series
V4
Common Case styles
Description and Applications
The MA46450, MA46470 and MA46410 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 matching at one or more bias voltages is
also available. All diode types are available ina 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 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.
ODS-30
ODS-134 Die
Absolute Maximum Ratings @ T
A
=+25 °C
(Unless Otherwise Noted)
1
Parameter
Reverse Voltage
Operating Temperature
Storage Temperature
Absolute Maximum
Breakdown Voltage
-65°C to +175°C
65°C to +200°C
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.
1
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
Electrical Specifications @ T
A
= +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 @ I
R
= 10µA, V
b
= 22 V Min
Reverse Leakage Current @ V
R
=18V, I
R
= 100 nA Max
Case
Style
Part Number
Total
Total
Capaci-
Q
Capaci-
2,3,5,7
tance
Minimum
tance Ratio
+/-10%
Vr=4V
(pF)
MA46450
MA46451
MA46452
MA46457
MA46461
30
30
30
30
30
0.5
0.7
1.0
2.2
4.7
Vr=2V
Vr=20V
-
2.0-3.8
2.9-4.4
3.6-5.2
4.1-6.1
4.8-7.2
Vr=4V
f=50MHz
-
4000
4000
3000
3000
1500
MA46470
MA46471
MA46472
MA46473
MA46474
MA46475
MA46476
MA46477
MA46479
MA46480
30
30
30
30
30
30
30
30
30
30
30
30
30
MA46410 thru MA46480 Series
V4
Electrical Specifications @ T
A
= +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 @ I
R
= 10µA, V
b
= 22 V Min
Reverse Leakage Current @ V
R
=18V, I
R
= 100 nA Max
Case
Style
Part Number
Vr=4V
(pF)
0.5
0.7
1.0
1.2
1.5
1.8
2.0
2.2
3.3
3.7
4.7
6.8
10.0
Total
Total
Q
Capaci-
Capaci-
Minimum
tance
2,3,5,7
tance Ratio
Vr=2V
Vr=20V
-
2.2/4.1
3.6/5.6
4.8/7.4
4.8/7.4
5.0/7.4
6.6/8.7
6.6/8.7
6.6/8.7
6.4/10.0
6.8/11.0
6.9/11.1
7.2/11.5
7.5/12.0
Vr=4V
f=50MHz
-
4000
4000
3000
3000
3000
3000
3000
3000
2000
2000
1500
1500
1500
Electrical Specifications @ T
A
= +25 °C
MA46410 thru MA46425 Series Gamma = 1.5
4
MA46481
MA46483
MA46485
Gamma4 = 1.4-1.6 VR = 2 - 12 Volts
Junction Capacitance Ratio (CJ2/CJ12) = 6.2-10.8
Breakdown Voltage @ I
R
= 10µA, V
b
= 18 V Min
Reverse Leakage Current @ V
R
=10V, I
R
= 100 nA Max
Case
Style
Part Number
Total
Capaci-
tance
2,6,7
Vr=4V
(pF)
Total
Q
Capaci-
Minimum
tance Ratio
Vr=2V
Vr=12V
-
2.7-4.3
4.2-5.7
5.2-4.9
5.7-7.6
6.0-8.1
6.6-8.8
Vr=4V
f=50MHz
-
3000
2500
2500
1800
1800
1200
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
MA46410
MA46413
MA46416
MA46418
MA46420
MA46425
30
30
30
30
30
30
0.45-0.60
0.90-1.10
1.62-1.98
2.42-2.97
3.33-4.22
9.00-11.00
2
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
Typical Performance Curves
MA46410 thru MA46480 Series
V4
3
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
Typical Performance Curves
MA46410 thru MA46480 Series
V4
4
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
Environmental Ratings PER MIL-STD-750
Method
Storage Temperature 1031
Temperature Cycle
1051
Shock
2016
Vibration
2056
Level
See maximum ratings
10 cycles, -65°C to +175°C
500 g’s
15 g’s
MA46410 thru MA46480 Series
V4
Case Styles
(Dimensions are available upon request)
Typical Coaxial Packages
ODS-134 Die
Typical Coplanar Packages
5
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.
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