January 2000 TOKO, Inc.
Page 1
KV1440
VARIABLE CAPACITANCE DIODE
FEATURES
s
Very Low Series Resistance
s
Excellent Linearity (CV Curve)
s
Large Capacitance Ratio (A1 = 1.23 minimum,
A2 = 1.65 minimum)
s
Two Diodes in a Miniature Package (SOT23-3)
s
Very Small Capacitance Deviation at Tape/Reel
APPLICATIONS
s
FM Radio
s
Voltage Controlled Oscillator
RANK
C
1
2
3
4
C
2
MIN
43.00
44.00
45.00
46.00
MAX
44.60
45.60
46.60
47.60
CLASSIFICATION
(Unit: pF)
ORDERING INFORMATION
TAPE/REEL CODE
TL: Tape Left
Tape/Reel Code
KV1440
1
2
3
20P
KV1440
DESCRIPTION
The KV1440 is specially made to be used as a tuning
element in radio cassettes, stereos, car radios, and other
consumer radios.
The KV1440 minimizes cross modulation, allowing good
signal-to-noise ratio in the overall design.
The KV1440 is available in the miniature SOT23-3 surface
mount package.
Page 2
January 2000 TOKO, Inc.
KV1440
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
V
REV
Reverse Voltage
I
REV
= 10 A
16
V
I
REV
Reverse Current
V
REV
= 10.0 V
50
nA
C
2
Diode Capacitance 2
V
REV
= 2.0 V, f = 1 MHz
43.00
47.60
pF
Q
Quality Factor
V
REV
= 3.0 V, f = 100 MHz
100
A1
Capacitance Ratio
C
2
/ C
4
1.23
1.33
A2
Capacitance Ratio
C
2
/ C
8
1.65
1.75
ELECTRICAL CHARACTERISTICS
Test conditions: T
A
= 25
C
Note 1: Diode Capacitance measured with HP 4279A or equivalent instruments (at OSC level 20 mVrms,
5 mVrms).
Note 2: Quality Factor measured with HP 4191A or equivalent instruments.
ABSOLUTE MAXIMUM RATINGS
Storage Temperature Range ................... -55 to +150
C
Operating Temperature Range ................... -55 to +85
C
Lead Soldering Temperature (10 s) ...................... 235
C
Reverse Voltage ....................................................... 18 V
Forward Current .................................................... 50 mA
Power Dissipation .............................................. 100 mW
Page 4
January 2000 TOKO, Inc.
KV1440
Mark
Dimensions are shown in millimeters
Tolerance: x.x =
0.2 mm (unless otherwise specified)
1.3 max
1.1
0 ~ 0.1
2.8
0.15
Recommended Mounting Pad
M
0.1
0.4
+ 0.10
0.05
+ 0.1
+ 0.10
0.05
Marking Information
Product Code
F4
SOT23-3
PACKAGE OUTLINE
Printed in the USA
1999 Toko, Inc.
All Rights Reserved
TOKO AMERICA REGIONAL OFFICES
Toko America, Inc. Headquarters
1250 Feehanville Drive, Mount Prospect, Illinois 60056
Tel: (847) 297-0070 Fax: (847) 699-7864
Western Regional Office
Toko America, Inc.
2480 North First Street , Suite 260
San Jose, CA 95131
Tel: (408) 432-8281
Fax: (408) 943-9790
Midwest Regional Office
Toko America, Inc.
1250 Feehanville Drive
Mount Prospect, IL 60056
Tel: (847) 297-0070
Fax: (847) 699-7864
Eastern Regional Office
Toko America, Inc.
107 Mill Plain Road
Danbury, CT 06811
Tel: (203) 748-6871
Fax: (203) 797-1223
IC-xxx-KV1471E
0798O0.0K
Visit our Internet site at http://www.tokoam.com
Semiconductor Technical Support
Toko Design Center
4755 Forge Road
Colorado Springs, CO 80907
Tel: (719) 528-2200
Fax: (719) 528-2375
The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its
products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of
third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.
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