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Visit www.macomtech.com for additional data sheets and product information.

M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

changes to the product(s) or information contained herein without notice.

1

Si Abrupt Tuning Varactor Diode

Rev. V4

MA45400 Series

ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology 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 M/A-COM Technology

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.

Commitment to produce in volume is not guaranteed.

Features

• Surface Mount Plastic Packages : SOT-23

• 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

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

SOT-23