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KV1911A - KV1991A
TM (R)
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 SiO2 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 25 C (UNLESS OTHERWISE SPECIFIED)
Rating Maximum Working Voltage Leakage Current @ VR = 10V Storage Temperature Operating Temperature Symbol VR IR TSTG TOP Value 12 50 -65 to +150 -55 to +125 Unit V nA C C
TCXOs
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.
1 Unless otherwise specified, these products are supplied with Gold terminations suitable for RoHS compliant assembly.
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 (R)
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 VR= 4V, =50 MHz by
CJ (pF) 2
= 1 MHz
VR = 1V Min 36 26 17 13 9 3.8 1.65 1.2 0.6
VR = 2.5V
Min - Max
VR = 4V Max 11.8 8.8 5.8 4.3 2.8 1.3 0.6 0.45 0.25
VR = 8V Max 6 4.5 3 2.5 1.5 0.8 0.35 0.3 0.15
TUNING 2 RATIO CJ(-1V) / CJ(-8V) Typ 6.0 5.8 5.7 5.6 5.4 5.1 4.7 4.3 3.9
QUALITY FACTOR1 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 / 2fRsCj
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
CJ (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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