M A COM MA46H203, MA46H202-1088, MA46H202, MA46H201-1088, MA46H201 Datasheet

Surface Mount GaAs
Tuning Varactors

MA46 Series

V3.00

M/A-COM, Inc.

North America: Tel. [phone] ■ Asia/Pacific: Tel. [phone] ■ Europe: Tel. [phone]

Fax [phone] Fax [phone] Fax [phone]

1

Specifications Subject to Change Without Notice.

Features

●

Low Cost

●

Surface Mount Packages

●

Very High Quality Factor

●

Constant Gamma Abrupt Junction: 0.5
Hyperabrupt Junctions: 0.75, 1.25 and 1.5

●

Capacitance Ratio to 10:1

●

Case Style 1056 is Hermetic and may be
Screened to JANTX levels

●

Tape and Reel Packaging Available

Description

M/A-COM offers four families of low cost surface mount
gallium arsenide tuning varactors. All families have sili­con nitride protected junctions for low leakage current
and high reliability.

The MA46H500 through MA46H504 family has hyper­abrupt junctions with constant gamma of 1.5 from 2 to 12
volts and high quality factor.

The MA46H200 through MA46H206 family has hyper­abrupt junctions with constant gamma of 1.25 from 2 to
20 volts and higher quality factor.

The MA46H070 through MA46H073 family has hyper­abrupt junctions with constant gamma of 0.75 from 0 to
20 volts and very high quality factor.

The MA46504 through MA46506 family has abrupt junc­tions with constant gamma of 0.5 from 0 to 30 volts and
the highest quality factor.

Applications

The MA46H500 through MA46H504 (gamma 1.5) family of
constant gamma hyperabrupt GaAs tuning varactors is
designed for wide bandwidth VCOs and voltage tuned
filters where limited bias voltage is available. These var­actors have greatest capacitance change versus voltage at
the cost of slightly lower quality factor than the other
families of GaAs varactors.

The MA46H200 through MA46H206 (gamma 1.25) family
of constant gamma hyperabrupt GaAs tuning varactors
has the largest capacitance ratio of the families of GaAs
varactors and high quality factor. These diodes are very
well suited for wide bandwidth VCOs and VTFs where
the optimum combination of very wide tuning range and
high quality factor is required.

The MA46H070 through MA46H073 (gamma 0.75) family
of constant gamma hyperabrupt GaAs tuning varactors
has quality factor approaching that of abrupt junction var­actors, but higher capacitance change versus tuning volt­age. These diodes are very well suited for narrower
bandwidth VCOs and VTFs where wide tuning range and
very high quality factor are required.

The MA46504 through MA46506 (gamma 0.5) family of
constant gamma abrupt GaAs tuning varactors has the
highest quality factor. These diodes are very well suited
for narrower bandwidth VCOs and VTFs where highest
quality factor is of paramount concern.

Case Styles

1056

1088

Surface Mount GaAs Tuning Varactors MA46 Series

V3.00

M/A-COM, Inc.

North America: Tel. [phone] ■ Asia/Pacific: Tel. [phone] ■ Europe: Tel. [phone]

Fax [phone] Fax [phone] Fax [phone]

2

Specifications Subject to Change Without Notice.

Electrical Specifications @ 25°C

Gamma 0.5 Abrupt Tuning Varactors

Breakdown Voltage @ 10 µA = 30 V minimum
Reverse Current @ 24 V = 100 nA maximum
Gamma = 0.48 - 0.50, V

R

= 0 to 30 V

Electrical Specifications @ 25°C

Gamma 0.75 Hyperabrupt Tuning Varactors

Breakdown Voltage @ 10 µA = 20 V minimum
Reverse Current @ 16 V = 100 nA maximum
Gamma = 0.68 - 0.83, V

R

= 0 to 20 V

Absolute Maximum Ratings @ 25°C

CAPACITANCE vs REVERSE VOLTAGE

Parameter Case 1056 Case 1088

Operating Temperature -65°C to +150°C -65°C to +125°C
Storage Temperature -65°C to +200°C -65°C to +125°C
Reverse Voltage Breakdown Voltage
Forward Current 50 mA @ 25°C
Power Dissipation 50 mW @ +25°C, derate linearly to 0 mW

at maximum operating temperature

Nominal

Total Total
Model Capacitance Capacitance Typical
Number (pF) Ratio (CT0/C

T30

)Q

f=1 MHz f=1 MHz f=50 MHz

V

R

=4 Volts VR=0/VR=30 VR=4 Volts

MA46504 0.5 - 0.7 2.1 6000
MA46505 0.9 - 1.1 2.8 5700
MA46506 2.7 - 3.3 3.4 4500

Nominal

Total Total

Model Capacitance Capacitance Typical
Number (pF) Ratio (CT0/C

T20

)Q

f = 1 MHz f = 1 MHz f = 50 MHz

VR= 4 Volts VR= 0/VR=20 VR= 4 Volts

MA46H070 0.5 - 0.7 5.5 4500
MA46H071 0.9 - 1.1 6.4 4500
MA46H072 2.7 - 3.3 7.5 3000
MA46H073 4.5 - 5.5 7.5 2200

REVERSE VOLTAGE (VOLTS

)

.1 101 100

100

10

1

0.1

TOTAL CAPACITANCE (pF)

MA46506

MA46505
MA46504

T ypical Performance Curves

CAPACITANCE vs REVERSE VOLTAGE