MA4ST400 View Datasheet(PDF) - M/A-COM Technology Solutions, Inc.
Part Name
Description
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MA4ST400 Datasheet PDF : 4 Pages
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MA4ST400 Series
Surface Mount Hyperabrupt Varactors
Features
• Surface Mount Packages
• High Quality Factor
• Capacitance Ratio to 9.5:1
• Tape and Reel Packaging Available
• SPC Monitored Ion Implantation for Excellent
• C-V Repeatability
• Singles and Common Cathode Pairs
• Lead-Free (RoHS Compliant) Equivalents
Available with 260 °C Reflow Compatibility
Configurations
Rev. V5
Common Cathode
Single
Description
M/A-COM’s MA4ST400 series are ion-implanted,
hyperabrupt junction, silicon tuning varactors in the
SOT-23 surface mount package. These thermal
oxide passivated diodes feature high capacitance
ratio and quality factor. They are well suited for
octave bandwidth tuning in the HF to UHF frequency
bands. The standard capacitance tolerance is ±
10%, with tighter tolerances available. Capacitance
matching at one or more bias voltages is also
available. These diodes are offered with standard
Sn/Pb plating, as well as with 100% matte Sn plating
on our RoHS compliant devices.
RoHS Compliant Parts 3
Part Number
RoHs Compliant
Part Number
MA4ST401-287T MAVR-000401-0287AT
MA4ST403-287T MAVR-000403-0287AT
MA4ST404-287T MAVR-000404-0287AT
MA4ST405-287T MAVR-000405-0287AT
MA4ST406-287T MAVR-000406-0287AT
MA4ST407-287T MAVR-000407-0287AT
MA4ST408-287T MAVR-000408-0287AT
MA4ST409-287T MAVR-000409-0287AT
Configura-
tion
Single
Single
Single
Single
Single
Single
Single
Single
Applications
The MA4ST400 series tuning varactors are useful
for octave bandwidth tuning applications in the HF
through UHF ranges. Applications include VCOs and
voltage tuned filters in radios, cable TV tuners and
test instruments where low cost and excellent lot-to-
lot repeatability are critical. Linear tuning
performance is available from 3 to 8 volts.
Absolute Maximum Ratings 1,2
MA4ST401CK-287T MAVR-000401-0287FT
MA4ST403CK-287T MAVR-000403-0287FT
MA4ST404CK-287T MAVR-000404-0287FT
MA4ST405CK-287T MAVR-000405-0287FT
MA4ST406CK-287T MAVR-000406-0287FT
Common
Cathode
Common
Cathode
Common
Cathode
Common
Cathode
Common
Cathode
@ TA=+25 °C (Unless Otherwise Noted)
Parameter
Absolute Maximum
Reverse Voltage
22V
Forward Current
50 mA
Total Power Dissipation
250 mW
MA4ST407CK-287T MAVR-000407-0287FT
MA4ST408CK-287T MAVR-000408-0287FT
MA4ST409CK-287T MAVR-000409-0287FT
Common
Cathode
Common
Cathode
Common
Cathode
Operating Temperature
-55 °C to +125 °C
Storage Temperature
-55 °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
1
3. Suffix refers to package style, configuration and packaging
requirements. Other packages and configurations may be
available upon request.
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 / Fax: 978.366.2266
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
• 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.macomtech.com for additional data sheets and product information.
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.
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