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2Specifications Subject to Change Without Notice.
V3.00
* The maximum storage and operating temperature of the plastic
1088 case style is 125°C.
Absolute Maximum Ratings at +25°C
GaAs Constant Gamma Hyperabrupt Tuning Varactors MA46410 thru 480 Series
Electrical Specifications at 25°C
MA46450 Series Gamma = 1.0
Rev erse Voltage6= 22 Volts minimum
Gamma4= 0.9 - 1.1, VR= 2 - 20 Volts
Junction Capacitance Ratio (CJ2/CJ20) = 5.0 - 8.0
MA46470 Series Gamma = 1.25
Reverse Voltage6= 22 Volts minimum
Gamma4= 1.13 - 1.38, VR= 2 - 20 Volts
Junction Capacitance Ratio (CJ2/CJ20) = 8.15 - 12.99
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 (Cpand 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 avail-
able upon request. By adding the suffix A to the part number, a toler-
ance 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
housed in case style 30. Other case styles will result in different val-
ues.
Total2, 3, 5, 7 Total 50 MHz
Capacitance Capacitance7Q at
Model Cases1@ -4 Volts Ratio (2/20) -4 VoIts
Number Style Min./Max. (pF) Min./Max. Typical
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
MA46454 30 1.5 3.8-5.5 3000
MA46455 30 1.8 4.1-6.1 3000
MA46457 30 2.2 4.1-6.1 3000
MA46459 30 3.3 4.5-6.7 2000
MA46461 30 4.7 4.8-7.2 1500
Total2, 6, 7 Total 50 MHz
Capacitance Capacitance7Q at
Model Case1@ -4 Volts Ratio (2/12) -4 Volts
Number Style Min./Max. (pF) Min./Max. Typical
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
MA46421 30 4.22-5.17 6.2-8.3 1200
MA46422 30 5.04-6.16 6.3-8.4 1200
MA46425 30 9.00-11.00 6.6-8.8 1200
Total2, 3, 5, 7 Total 50 MHz
Capacitance Capacitance7Q at
Model Case1@ -4 Volts Ratio (2/20) -4 Volts
Number Style Min./Max. (pF) Min./Max. Minimum
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
MA46478 30 2.7 6.4/10.0 2000
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
MA46482 30 5.6 7.2/11.5 1500
MA46483 30 6.8 7.2/11.5 1500
MA46484 30 8.2 7.2/11.5 1500
MA46485 30 10.0 7.5/12.0 1500
Parameter Absolute Maximum
Operating T emperature* -65°C to +175°C
Storage T emperature -65°C to +200°C
Rever se V oltage Breakdown Voltage Environmental Ratings PER MIL-STD-750
MIL 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
Constant Acceleration 2006 20,000 g’s
Humidity 1021 10 days
MA46410 Series Gamma = 1.5
Breakdown Voltage6= 18 Volts minimum
Gamma4= 1.4 - 1.6, VR= 2 - 12 Volts
Junction Capacitance Ratio (CJ2/CJ12) = 6.2 - 10.84