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1
Si Abrupt Tuning Varactor Diode
M/A-COM Products
Rev. V5
MA45400 Series
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.
MA-COM Technical Solutions and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice.
ADVANCED: Data Sheets contain information regarding a product MA-COM Technical Solutions 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 MA-COM Technical Solutions
has under development. Performance is based on engineering tests. Specifications are typical.
Mechanical outline has been fixed. Engineering samples and/or test data may be available. Commit-
ment to produce in volume is not guaranteed.
Features
Surface Mount Plastic Packages :SOT-23, SC-79
SPC Process for Superior C vs V and Q vs V
Repeatability
Lead-Free (RoHs Compliant) equivalents avail-
able with 260°C reflow compatibility
Description
M/A-COM’s MA45400 series is a highly repeatable,
UHCVD/ion-implanted, abrupt silicon tuning varactor
in a cost effective surface mount package. This se-
ries of varactors is designed for general purpose
tuning in the HF to UHF frequency bands. It is effi-
cient for wide tuning across a 0-30V range. These
diodes are offered with standard Sn/Pb plating , as
well as 100% matte Sn plating on our RoHs compli-
ant equivalent devices.
Application
M/A-COM’s MA45400 series tuning varactor is use-
ful for tuning applications in the HF through UHF
ranges. Applications include VCO’s and voltage
tuned filters in radios, cable TV tuners and test in-
struments where low cost and excellent lot to lot re-
peatability are critical.
Absolute Maximum Ratings
1,2
@ TA=+25 °C (Unless Otherwise Noted)
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
30 V
Forward Current
50 mA
Operating Temperature
-55 °C to +125 °C
Storage Temperature
-55 °C to +125 °C
Part Number
RoHS Compliant Part Number
Configuration
Package
Package Cp
(pF)
Package Ls
(nH)
MA45436-287T
MAVR-045436-0287AT
Single
SOT-23
0.12
1.3
MA45438-287T
MAVR-045438-0287AT
Single
SOT-23
0.12
1.3
MA45439-287T
MAVR-045439-0287AT
Single
SOT-23
0.12
1.3
MA45440-287T
MAVR-045440-0287AT
Single
SOT-23
0.12
1.3
MA45441-287T
MAVR-045441-0287AT
Single
SOT-23
0.12
1.3
MA45445-287T
MAVR-045445-0287AT
Single
SOT-23
0.12
1.3
MA45446-287T
MAVR-045446-0287AT
Single
SOT-23
0.12
1.3
MA45436CK-287T
MAVR-045436-0287FT
Common Cathode
SOT-23
0.12
1.3
MA45438CK-287T
MAVR-045438-0287FT
Common Cathode
SOT-23
0.12
1.3
MA45439CK-287T
MAVR-045439-0287FT
Common Cathode
SOT-23
0.12
1.3
MA45440CK-287T
MAVR-045440-0287FT
Common Cathode
SOT-23
0.12
1.3
MA45441CK-287T
MAVR-045441-0287FT
Common Cathode
SOT-23
0.12
1.3
MAVR-045436-12790T
Single
SC-79
0.10
0.6
SOT-23
SC-79