Page 1
KV1430
VARIABLE CAPACITANCE DIODE
FEATURES
■ Excellent Linearity (CV Curve)
■ Large Capacitance Ratio (A = 3.70 minimum) with
Very Low Series Resistance
■ Two Diodes in a Miniature Package (SOT23-3)
■ Very Small Capacitance Deviation at Tape/Reel
DESCRIPTION
The KV1430 variable capacitance diode was specially
made to be used as tuning elements in car radios, radio
cassettes, stereos, and other consumer radios. The
KV1430 is suitable for wide band tuning from 76 to 108
MHz.
If the KV1430 is used only for FM reception, it is possible
to operate it at 4.5 V so it is very useful in lowering the
power demands of the set.
The KV1430 is available in a miniature SOT23-3 package.
APPLICATIONS
■ FM Radio
■ Voltage Controlled Oscillator
CLASSIFICATION
RANK
C
MIN 69.14 71.09 73.09 75.15
C
2
MAX 71.23 73.24 75.31 77.43
ORDERING INFORMATION
2345
KV1430
(Unit: pF)
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
KV1430
3
20P
12
January 2000 TOKO, Inc. Page 1
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KV1430
ABSOLUTE MAXIMUM RATINGS
Reverse Voltage....................................................... 18 V
Forward Current .................................................... 50 mA
Power Dissipation .............................................. 100 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
Lead Soldering Temperature (10 s) ......................235 °C
V
I
C
C
C
C
R
REV
REV
2
4
6
9
S
Reverse Voltage I
Reverse Current V
Diode Capacitance 2 V
Diode Capacitance 4 V
Diode Capacitance 6 V
Diode Capacitance 9 V
Series Resistance V
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.
Note 3: The tolerance of two adjacent parts on a reel is within 3% at C2, C4, C6, and C9.
Note 4: The value of capacitance is the average of 2 back to back type diodes.
= 10 µA 16 V
REV
= 10.0 V 100 nA
REV
= 2.0 V, f = 1 MHz 69.14 77.43 pF
REV
= 4.0 V, f = 1 MHz 43.09 56.24 pF
REV
= 6.0 V, f = 1 MHz 25.05 34.57 pF
REV
= 9.0 V, f = 1 MHz 15.44 20.10 pF
REV
= 2.0 V, f = 70 MHz 0.5
REV
/ C
2
9
3.70 5.00
Ω
Page 2 January 2000 TOKO, Inc.
Page 3
TYPICAL PERFORMANCE CHARACTERISTICS
KV1430
CAPACITANCE vs.
200
100
30
CAPACITANCE (pF)
10
1000
Q
100
REVERSE VOLTAGE
0 1 2 3 4 5 6 7 8 9
V
(V)
REV
QUALITY FACTOR vs.
REVERSE VOLTAGE
TA = 25 °C
f = 50 MHz
100 MHz
TA = 25 °C
f = 1 MHz
70 MHz
REVERSE CURRENT vs.
REVERSE VOLTAGE
100 p
10 p
(A)
1 p
REV
I
100 f
10 f
0 2 4 6 8 10 12 14 16
SERIES RESISTANCE vs.
0.6
0.4
(Ω)
S
R
TA = 85 °C
TA = 55 °C
TA = 25 °C
V
(V)
REV
FREQUENCY
V
= 2 V
REV
TA = 25 °C
0.2
50 100 300 500
f (MHz)
TEMPERATURE COEFFICIENT
1000
(ppm/ C)
A
300
∆C /∆ T
100
vs. REVERSE VOLTAGE
TA = -55 °C to +85 °C
f = 1 MHz
0 1 2 3 4 5 6 7 8 9
V
(V)
REV
)
A
C (T
10
0 1 2 3 4 5 6 7 8 9
V
(V)
REV
C (TA)
C (25 °C)
1.05
1.04
1.03
1.02
1.01
1.00
C (25 C)
0.99
0.98
0.97
0.96
0.95
0 1 2 3 4 5 6 7 8 9
vs. REVERSE VOLTAGE
TA = +85 °C
+55 °C
+25 °C
-15 °C
-55 °C
V
(V)
REV
f = 1 MHz
January 2000 TOKO, Inc. Page 3
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KV1430
PACKAGE OUTLINE
SOT23-3
Marking Information
Product Code F3
Mark
+ 0.10
0.4
0.05
M
0.1
+ 0.1
1.1
1.3 max
Recommended Mounting Pad
0.05
+ 0.10
0 ~ 0.1
Dimensions are shown in millimeters
Tolerance: x.x = ± 0.2 mm (unless otherwise specified)
0.15
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 January 2000 TOKO, Inc.
© 1999 Toko, Inc.
All Rights Reserved
IC-xxx-KV1471E
0798O0.0K
Printed in the USA
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