MA4ST079-083_15 Datasheet, PDF (1/3 Pages) M/A-COM Technology Solutions, Inc. – Surface Mount Hyperabrupt Wide-Band Tuning Varactors

MA4ST079 thru MA4ST083 Series
Surface Mount Hyperabrupt Wide-Band Tuning Varactors
Rev. V6
Features
• Low Cost
• Very High Capacitance Ratio from 1 to 8 Volts
• Surface Mount Package
• High Quality Factor
• Useful for Battery Applications
• SPC Monitored Ion Implantation for Excellent C-
V Repeatability
• Singles and Common Cathode Pairs
• Available in Tape and Reel
• Lead-Free (RoHs Compliant) equivalents avail-
able with 260°C reflow compatibility
Description
The MA4ST079 through MA4ST083 series of silicon
hyperabrupt junction tuning varactors is produced
with ion implantation and advanced epitaxial growth
techniques. These diodes have thermal oxide pas-
sivation, and feature very high capacitance ratio and
quality factor. They are well suited for use from the
sub-HF through UHF frequency range. The standard
capacitance tolerance is ±10%, with tighter toler-
ances available. Capacitance matching at one or
more bias voltages is also available.These diodes
are offered with standard Sn/Pb plating , as well as
100% matte Sn plating on our RoHs compliant
equivalent devices.
SOT-23
Absolute Maximum Ratings ^1,2
@ T_A=+25 °C (Unless Otherwise Noted)
Parameter
Absolute Maximum
Reverse Voltage
12 V
Forward Current
50 mA
Power Dissipation
50mW @25°C
Operating Temperature
-65 °C to +125 °C
Storage Temperature
-65 °C to +125 °C
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
Configurations
Applications
The MA4ST079 through MA4ST083 series of hy-
perabrupt junction tuning varactors is suggested for
usage where a large frequency change is required
with only a small change in tuning voltage. This se-
ries is appropriate for usage in wide band voltage-
controlled oscillators and voltage controlled filters
which require the largest rate of change of capaci-
tance with voltage. The large change in capacitance
from 1 to 8 volts makes them very attractive for bat-
tery operated or other systems with limited available
control voltage. The MA4ST079 through MA4ST083
family can be used in VCOs and VTFs from approxi-
mately 100 KHz through the UHF frequency band.
Ordering Information
Part Number
RoHs Compliant Part Number³
MA4ST079
MAVR-000079-XXXXXX
MA4ST080
MAVR-000080-XXXXXX
MA4ST081
MAVR-000081-XXXXXX
MA4ST082
MAVR-000082-XXXXXX
MA4ST083
MAVR-000083-XXXXXX
3. Suffix refers to package style , configuration and packaging
Specifications are subject to change without prior notification
1
requirements. See electrical specification for complete
part number offerings
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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
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typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. _{M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make}
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.