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Also Offering
RoHs Compliant
Equivalent Parts
Low Tuning Voltage/Low Rs
Silicon Hyperabrupt Varactor Diode
V3
MA4ST1200 Series
1
Features
Low Series Resistance at Low Tuning Voltages
High Capacitance Ratio at Low Tuning Voltages
Surface Mount Plastic Packages : SC-79, SOD-323,
SC-70 ( 3L )
SPC Process for Superior C vs V Repeatability
Lead-Free (RoHs Compliant) equivalents available with
260°C reflow compatibility
Description
M/A-COM’s MA4ST1200 series is a highly repeatable,
UHCVD/ion-implanted, hyperabrupt silicon tuning varactor in a
cost effective surface mount package. This series of varactors is
designed for high capacitance ratio, and high Q for low battery
voltage operation. It is efficient for wide band tuning and low
phase noise application where the supply voltage is limited to 5
volts or less. The Varactors are offered as Singles in SC-79, and
SOD-323 along with a Common Cathode version offered in the
SC-70, 3 Lead. These diodes are offered with standard Sn/Pb
plating , as well as with 100% matte Sn plating on our RohS
compliant equivalent devices.
.
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.
2. Please refer to application note M538 for surface mounting
instructions
Parameter
Absolute Maximum
Reverse Voltage
12 V
Forward Current
50 mA
Operating Temperature
-55 °C to +125 °C
Storage Temperature
-55 °C to +125 °C
SOD-323
SC-70 (3 lead)
SC-79
Part Number
RoHs Compliant Part Number
Configuration
Package
Package Cp
(pF)
Package Ls
(nH)
MA4ST1231-1279T
Single
SC-79
0.10
0.6
MA4ST1241-1279T
Single
SC-79
0.10
0.6
MA4ST1230-1141T
MA4ST1231-1141T
Single
SOD-323
0.11
1.2
MA4ST1240-1141T
MA4ST1241-1141T
Single
SOD-323
0.11
1.2
MA4ST1230CK-1146T
MA4ST1231CK-1146T
Common Cathode
SC-70 (3L)
0.12
1.3
MA4ST1240CK-1146T
MA4ST1241CK-1146T
Common Cathode
SC-70 (3L)
0.12
1.3