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KV1435
VARIABLE CAPACITANCE DIODE
FEATURES
s Suitable for World Wide Band (76 to 108 MHz)
s Excellent Linearity (CV Curve)
s Large Capacitance Ratio (A = 3.30 minimum) with
Very Low Series Resistance
s Two Diodes in a Miniature Package (SOT-23-3)
s Very Small Capacitance Deviation at Tape/Reel
s Very High Q
APPLICATIONS
s FM Radio
s Voltage Controlled Oscillator
DESCRIPTION
The KV1435 is a 9 volt range variable capacitance diode
designed for FM tuner applications. It contains two elements
housed in the miniature SOT23-3 surface mount package.
CLASSIFICATION
(Unit: pF)
C
RANK
1
2
3
4
MIN 68.86 70.81 72.80 74.85
C
2
MAX 71.52 73.53 75.61 77.74
KV1435
3
ORDERING INFORMATION
KV1435
Tape/Reel Code
20P
12
TAPE/REEL CODE
TL: Tape Left
January 2000 TOKO, Inc.
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KV1435
ABSOLUTE MAXIMUM RATINGS
Reverse Voltage ....................................................... 18 V
Forward Current .................................................... 50 mA
Power Dissipation .............................................. 100 mW
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range ...................-55 to +85 °C
Lead Soldering Temperature (10 s) ...................... 235 °C
ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP
VREV
IREV
C2
C4
C6
C9
RS
A
Reverse Voltage
Reverse Current
Diode Capacitance 2
Diode Capacitance 4
Diode Capacitance 6
Diode Capacitance 9
Series Resistance
Capacitance Ratio
IREV = 10 µA
VREV = 10.0 V
VREV = 2.0 V, f = 1 MHz
VREV = 4.0 V, f = 1 MHz
VREV = 6.0 V, f = 1 MHz
VREV = 9.0 V, f = 1 MHz
VREV = 2.0 V, f = 70 MHz
C2 / C9
16
68.86
42.93
26.39
16.91
3.30
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.
Note 3: The tolerance of two adjacent parts in a reel is within 3% at C2, C4, C6, and C9.
MAX UNITS
V
50 nA
77.74 pF
56.46 pF
36.69 pF
22.25 pF
0.4
4.60
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January 2000 TOKO, Inc.

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TYPICAL PERFORMANCE CHARACTERISTICS
KV1435
CAPACITANCE vs.
REVERSE VOLTAGE
200
TA = 25 °C
100 f = 1 MHz
30
10
01 2 34 5 67 8 9
VREV (V)
1000
QUALITY FACTOR vs.
REVERSE VOLTAGE
TA = 25 °C
f = 50 MHz
100 100 MHz
70 MHz
1n
100 p
10 p
1p
REVERSE CURRENT vs.
REVERSE VOLTAGE
TA = 85 °C
TA = 55 °C
TA = 25 °C
100 f
0
24
6 8 10 12 14 16
VREV (V)
SERIES RESISTANCE vs.
FREQUENCY
0.5
VREV = 2 V
TA = 25 °C
0.3
10
01 2 34 5 6 789
VREV (V)
C (TA) vs. REVERSE VOLTAGE
C (25 °C)
1.05
1.04 f = 1 MHz
1.03
1.02
1.01
1.00
0.99
TA = +85 °C
+55 °C
+25 °C
-15 °C
0.98 -55 °C
0.97
0.96
0.95
0 1 2 345 6 78 9
VREV (V)
January 2000 TOKO, Inc.
0.1
50 100
300
f (MHz)
500
1000
TEMPERATURE COEFFICIENT
vs. REVERSE VOLTAGE
TA = -55 °C to +85 °C
f = 1 MHz
300
100
0 1 23 4 56 7 8 9
VREV (V)
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KV1435
SOT23-3
PACKAGE OUTLINE
Mark
Marking Information
Product Code
G3
0.4
+
0.10
0.05
0.1 M
Recommended Mounting Pad
Dimensions are shown in millimeters
Tolerance: x.x = ± 0.2 mm (unless otherwise specified)
2.8
Toko America, Inc. Headquarters
1250 Feehanville Drive, Mount Prospect, Illinois 60056
Tel: (847) 297-0070 Fax: (847) 699-7864
TOKO AMERICA REGIONAL OFFICES
Midwest Regional Office
Toko America, Inc.
1250 Feehanville Drive
Mount Prospect, IL 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
Eastern Regional Office
Toko America, Inc.
107 Mill Plain Road
Danbury, CT 06811
Tel: (203) 748-6871
Fax: (203) 797-1223
Semiconductor Technical Support
Toko Design Center
4755 Forge Road
Colorado Springs, CO 80907
Tel: (719) 528-2200
Fax: (719) 528-2375
Visit our Internet site at http://www.tokoam.com
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.
Page 4
© 1999 Toko, Inc.
All Rights Reserved
IC-xxx-KV1471E
0798O0.0K
January 2000 TOKO, Inc.
Printed in the USA