TOKOM KV1845KTR Datasheet
KV1845K
VARIABLE CAPACITANCE DIODE
FEATURES
■ Very Small URD Surface Mount Package
■ Very Low Series Resistance
■ Large Capacitance Ratio (A = 2.2 minimum)
■ Excellent Linearity (CV Curve)
■ Very Small Capacitance Deviation at Tape/Reel
DESCRIPTION
The KV1845K is a variable capacitance diode designed for
UHF applications.
The KV1845K is available in a very small URD Surface
Mount Package.
CLASSIFICATION
RANK
C
MIN 9.45 9.80 10.75
C
1
MAX 10.05 11.00 11.35
12 3
(Unit: pF)
APPLICA TIONS
■ UHF Communications Equipment
■ Voltage Controlled Oscillator
■ 900 MHz Communications Systems
KV1845K
Note: Rank is determined after testing and marked on the
reel. All the diodes on a reel have the same rank, but rank
can not be specified when ordering.
ORDERING INFORMATION
KV1845K
Tape/Reel Code
TAPE/REEL CODE
TR: Tape Right
October 1999 TOKO, Inc. Page 1
KV1845K
ABSOLUTE MAXIMUM RATINGS
Reverse Voltage....................................................... 15 V
Forward Current ...................................................... 7 mA
Power Dissipation ................................................ 25 mW
ELECTRICAL CHARACTERISTICS
Test conditions: T
SYMBOL PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
= 25 °C
A
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range ...................-55 to +85 °C
V
REV
I
REV
C
1
C
4
R
S
A Capacitance Ratio C
Note 1: Diode Capacitance measured with HP 4279A or equivalent instruments (at OSC level 20 mVrms, ± 5 mVrms).
Note 2: Series Resistance measured with HP 4191A or equivalent instruments.
Reverse Voltage I
Reverse Current V
Diode Capacitance 1 V
Diode Capacitance 4 V
= 1 µA 10 V
REV
= 10 V 5.00 nA
REV
= 1 V, f = 1 MHz 9.45 10.40 11.35 pF
REV
= 4 V, f = 1 MHz 4.15 4.67 5.19 pF
REV
Series Resistance C = 5 pF, f = 470 MHz 0.25 0.30
/ C
1
4
2.20
Ω
Page 2 October 1999 TOKO, Inc.
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