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
γ = .44
φ =.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 CAPACITANCE (Cj)
(pF)
REVERSE BIAS SCALE INCLUDES WORK
FUNCTION FOR SILICON (φ = .7 VOLTS)
MTV 4045-11
Tuning Varactors
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 Perfor mance
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 Vr45 Volts
Device Dissipation at TA = 25°C 250 mW
19
Tuning Varactors
Total Capacitance, Ct1Capacitance Ratio Quality Factor, Q2
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
