Tuning Varactors: MTV 4045 Series
45-Volt Abrupt Tuning Varactors
Description
The MicroMetrics MTV 4045 series
Tuning Varactors are silicon abrupt
junction devices. They offer the
highest Q and lowest resistance
available in 45 volt tuning diodes.
A unique silicon dioxide passivation
process assures greater stability,
reliability and low leakage currents at
higher temperatures.
Applications
The MTV 4045 series Tuning Varactors
are used for both narrow and wide
band tuning through X-band.
These devices are used in circuits
requiring a high Q voltage variable
capacitance such as: tunable filters
and amplifiers, voltage controlled
oscillators, frequency synthesizers and
continuous phase shifters. They are
also useful as frequency and phase
modulators in communications
applications.
Standard capacitance tolerance is
10%. Diodes can be optimized for
custom electrical or mechanical
specifications upon request.
100
10
1.0
.10
= .44
=.70
VB=45V
MTV 4045-02
MTV 4045-03
MTV 4045-04
MTV 4045-05
MTV 4045-08
MTV 4045-09
MTV 4045-10
MTV 4045-12
MTV 4045-13
MTV 4045-14
MTV 4045-15
MTV 4045-16
MTV 4045-17
MTV 4045-18
1.0
10
100
REVERSE BIAS (Vr)
(V)
JUNCTION CAP
ACIT
ANCE (C
j)
(pF)
REVERSE BIAS SCALE INCLUDES WORK
FUNCTION FOR SILICON (
= .7 VOLTS)
MTV 4045-11
T
uning V
aractors
18
Features
Low Series Resistance - High Q
Extensive Selection of Capacitance
Values
Packaging
Available in a Wide Range of Case
Styles as well as Chip Form
Typical Performance
MicroMetrics, Inc. 136 Harvey Road, Building C, Londonderry, NH 03053
Voice: 603-641-3800, Fax: 603-641-3500, Internet: www.micrometrics.com, E-mail: serv@micrometrics.com
Tuning Varactors: MTV 4045 Series
Electrical Characteristics
Notes:
1. Capacitance tolerance is 10% except for 20% for suffix number 01, 02, and 03.
2. Q specified Vr = 4V, 50 MHz equivalent from 1 GHz or 100 MHz measurement.
Maximum Ratings
Parameter
Symbol
Value
Units
Operating Temperature
Top
-55 to + 150
C
Storage Temperature Range
Tstg
-65 to + 200
C
Reverse Voltage
Vr
45
Volts
Device Dissipation at TA = 25C
250
mW
19
T
uning V
aractors
Total Capacitance, Ct
1
Capacitance Ratio
Quality Factor, Q
2
at -4V, 1 MHz
Ct0/Ct45
@-4V, 50 MHz
Part
(pF)
MIN
MIN
Number
0.4
7.0
3000
MTV4045-01
0.6
7.0
3000
MTV4045-02
0.8
7.0
2800
MTV4045-03
1.0
7.0
2800
MTV4045-04
1.2
7.0
2600
MTV4045-05
1.4
7.0
2400
MTV4045-06
1.6
7.0
2400
MTV4045-07
1.8
7.0
2300
MTV4045-08
2.2
7.0
2200
MTV4045-09
2.7
7.0
2200
MTV4045-10
3.3
7.0
2100
MTV4045-11
3.6
7.0
2000
MTV4045-12
3.9
7.0
2000
MTV4045-13
4.7
7.0
2000
MTV4045-14
5.6
7.0
1900
MTV4045-15
6.8
7.0
1800
MTV4045-16
8.2
7.0
1700
MTV4045-17
10.0
7.0
1600
MTV4045-18
12.0
7.0
1500
MTV4045-19
15.0
7.0
1400
MTV4045-20
18.0
7.0
1300
MTV4045-21
22.0
7.0
1200
MTV4045-22
MicroMetrics, Inc. 136 Harvey Road, Building C, Londonderry, NH 03053
Voice: 603-641-3800, Fax: 603-641-3500, Internet: www.micrometrics.com, E-mail: serv@micrometrics.com
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