KV1911A – KV1991A
TM
®
VARACTOR DIODES
UHF Microwave Super-Hyperabrupt Junction
RoHS Compliant
DESCRIPTION
The KV1900 series of Super Hyperabrupt Varactor diodes combines low
voltage with high ratio tuning. They feature grown junction mesa
technology for the highest Q commercially available. Passivation is our
tough MIL-Spec ceramic glass for lowest leakage even at temperature
extremes or dense SiO
2
for lowest 1/F noise. They are available in a wide
range of package styles including chip (style 00) and most other
conventional ceramic microwave packages.
When ordering, specify the desired case style by adding its number as a
suffix to the basic model number. For more details on KV19x1A Super
Hyperabrupt Varactors in popular high performance surface mount
packages, see the KV19x2A & KV19x3A series products.
KEY FEATURES
Available as packaged devices or
as chips for hybrid applications
Typical 4:1 Tuning Range
Ultrahigh Q
Values for frequencies from UHF
through X band.
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APPLICATIONS
The KV19x1A series is an ideal choice for low voltage battery supplied
VCOs covering frequency ranges from UHF through 12 GHz. They are
used widely in analog phase shifters and phase modulators in microwave
communications. They are also excellent choices for higher overtone, high
pull VCXO and TCXO applications.
APPLICATIONS/BENEFITS
Wide bandwidth VCO.s
Voltage Tunable Filters
Phase Shifters
Modulators
VCXOs
ABSOLUTE MAXIMUM RATINGS AT 25º C
(UNLESS OTHERWISE SPECIFIED)
Rating
Maximum Working Voltage
Leakage Current @ V
R
= 10V
Storage Temperature
Operating Temperature
Symbol
V
R
I
R
T
STG
T
OP
Value
12
50
-65 to +150
-55 to +125
Unit
V
nA
ºC
ºC
TCXOs
KV1911A-KV1991A
KV1911A-KV1991A
IMPORTANT:
For the most current data, consult our website:
www.MICROSEMI.com
Specifications are subject to change. Consult factory for the latest information
.
These devices are ESD sensitive and must be handled using ESD precautions.
Unless otherwise specified, these products
are supplied with Gold terminations suitable
for RoHS compliant assembly.
1
Copyright
2007
Rev: 2009-02-03
Microsemi
Microwave Products
Page 1
75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748
KV1911A – KV1991A
TM
®
VARACTOR DIODES
UHF Microwave Super-Hyperabrupt Junction
RoHS Compliant
MICROWAVE HYPERABRUPT VARACTORS
ELECTRICAL PARAMETERS @ 25C (unless otherwise specified)
MODEL
NUMBER
KV1911A – 00
KV1951A – 00
KV1921A – 00
KV1931A – 00
KV1941A – 00
KV1961A – 00
KV1971A – 00
KV1981A – 00
KV1991A – 00
Notes
1.
2.
Q is determined at V
R
= 4V, ƒ =50 MHz by
C
J
(pF)
2
ƒ = 1 MHz
V
R
= 1V
Min
36
26
17
13
9
3.8
1.65
1.2
0.6
V
R
= 2.5V
Min - Max
V
R
= 4V
Max
11.8
8.8
5.8
4.3
2.8
1.3
0.6
0.45
0.25
V
R
= 8V
Max
6
4.5
3
2.5
1.5
0.8
0.35
0.3
0.15
TUNING
2
RATIO
C
J(-1V)
/ C
J(-8V)
Typ
6.0
5.8
5.7
5.6
5.4
5.1
4.7
4.3
3.9
QUALITY
FACTOR
1
Typ.
400
500
600
750
900
1200
1400
1600
1800
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18 - 27
13 - 20
8.3 - 12.8
6.3 - 9.8
4.3 - 6.3
1.8 - 2.8
0.9 - 1.35
0.6 - 0.9
0.3 - 0.6
1 / 2
fRsCj
PACKAGE STYLE 00
Specs apply to -00 (chip) version. Some limitations apply to packaged versions. Consult factory for more details.
CJ VS VOLTAGE
100.0
KV1911A
KV1941A
10.0
KV1971A
C
J
(pF)
1.0
KV1991A
0.1
0.0
0.1
1
10
V
R
(V)
Dimension
Nominal
0.015”
0.015”
0.005”
Depends on Part#
Consult Factory for Details
Microsemi offers a wide selection of package options
depending on your circuit application. Please consult
the factory for assistance.
A
B
C
D
Copyright
2007
Rev: 2009-02-03
Microsemi
Microwave Products
Page 2
75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748
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