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Unisonic Technologies

BB179 Datasheet Preview

BB179 Datasheet

UHF VARIABLE CAPACITANCE DIODE

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UNISONIC TECHNOLOGIES CO., LTD
BB179
Preliminary
UHF VARIABLE CAPACITANCE
DIODE
DIODE
„ DESCRIPTION
The UTC BB179 is a planar technology variable capacitance
diode providing the designers excellent matching performance, low
series resistance and great linearity.
The UTC BB179 is suitable for VCO (Voltage Controlled
Oscillators) and Electronic tuning in UHF (Very High Frequency)
tuners.
„ FEATURES
* Excellent matching to 2% DMA
* Low series resistance.
* Great linearity
* C28: 2.1 pF; ratio: 9
„ ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
BB179L-CC2-R
BB179G-CC2-R
Note: Pin Assignment: A: Anode, K: Cathode
Package
SOD-523
2
1
SOD-523
Pin Assignment
12
AK
Packing
Tape Reel
„ MARKING
79
G: Halogen Free
L : Lead Free
www.DataSheet4U.com
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
1 of 2
QW-R601-033.a




Unisonic Technologies

BB179 Datasheet Preview

BB179 Datasheet

UHF VARIABLE CAPACITANCE DIODE

No Preview Available !

BB179
Preliminary
DIODE
„ ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Continuous Reverse Voltage
VR 30 V
Peak Reverse Voltage (In series with a 10 kresistor)
Continuous Forward Current
VRM
IF
35 V
20 mA
Storage Temperature
Operating Junction Temperature
TSTG
TJ
-40~+150
-40~+125
°C
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
„ ELECTRICAL CHARACTERISTICS (TJ =25°C unless otherwise specified.)
PARAMETER
Reverse Current
Diode Series Resistance
Diode Capacitance
Capacitance Ratio
Capacitance Ratio
Capacitance Ratio
Capacitance Matching
SYMBOL
IR
rS
Cd
Cd(1V)
Cd(2V)
Cd(1V)
Cd(28V)
Cd(25V)
Cd(28V)
ΔCd
Cd
TEST CONDITIONS
MIN TYP MAX UNIT
VR = 30 V
10 nA
VR = 30 V, TJ=85 °C
200 nA
f = 470 MHz, VR is the value at
which Cd=9pF
0.6 0.75
VR = 1 V, f = 1 MHz
18.22
21.26 pF
VR = 28 V, f = 1 MHz
1.951
2.225 pF
f = 1 MHz
1.27
f = 1 MHz
8.45 10.9
f = 1 MHz
VR = 1~28 V, in a sequence of
15 diodes (gliding)
1.05
2
%
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
www.DataSohtheeetr4Upa.croammeters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 2
QW-R601-033.a


Part Number BB179
Description UHF VARIABLE CAPACITANCE DIODE
Maker Unisonic Technologies
Total Page 2 Pages
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Unisonic Technologies





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