MA4ST079_1 Datasheet, PDF (1/3 Pages) Tyco Electronics – Surface Mount Hyperabrupt Wide-Band Tuning Varactors

Surface Mount Hyperabrupt
Wide-Band Tuning Varactors
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 passivation, and feature
very high capacitance ratio and quality factor. They are
well suited for use from the sub-HF through UHF fre-
quency range. The standard capacitance tolerance is
±10%, with tighter tolerances available. Capacitance
matching at one or more bias voltages is also avail-
able.These diodes are offered with standard Sn/Pb plat-
ing , as well as 100% matte Sn plating on our RoHs com-
pliant equivalent devices.
Applications
The MA4ST079 through MA4ST083 series of hyperabrupt
junction tuning varactors is suggested for usage where a
large frequency change is required with only a small
change in tuning voltage. This series is appropriate for
usage in wide band voltagecontrolled oscillators and volt-
age controlled filters which require the largest rate of
change of capacitance with voltage. The large change in
capacitance from 1 to 8 volts makes them very attractive
for battery operated or other systems with limited available
Part Number
RoHs Compliant Part Number¹
MA4ST079
MA4ST080
MA4ST081
MA4ST082
MA4ST083
MAVR-000079-XXXXXX
MAVR-000080-XXXXXX
MAVR-000081-XXXXXX
MAVR-000082-XXXXXX
MAVR-000083-XXXXXX
1_{Suffix refers to package style , configuration and packaging require-}
ments. Contact representative for complete part number information.
1
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
Also Offering
RoHs Compliant
Equivalent Parts
SOT-23
MA4ST079 thru
MA4ST083 Series V4
Absolute Maximum Ratings @ T_A=+25 °C
(Unless Otherwise Noted) ¹
Parameter
Reverse Voltage
Forward Current
Power Dissipation
Absolute Maximum
12 V
50 mA
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.
Configurations
• North America Tel: [phone] / Fax: [phone]
• Europe Tel: [phone] / Fax: [phone]
• Asia/Pacific Tel: [phone] / Fax: [phone]
Visit www.macom.com for additional data sheets and product information.