January 2000 TOKO, Inc. 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
APPLICATIONS
■ FM Radio
■Voltage Controlled Oscillator
RANK
C2345
C
2
MIN 69.14 71.09 73.09 75.15
MAX 71.23 73.24 75.31 77.43
CLASSIFICATION (Unit: pF)
ORDERING INFORMATION
TAPE/REEL CODE
TL: Tape Left
Tape/Reel Code
KV1430
12
3
20P
KV1430
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.
Page 2 January 2000 TOKO, Inc.
KV1430
SYMBOL PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
V
REV
Reverse Voltage I
REV
= 10 µA 16 V
I
REV
Reverse Current V
REV
= 10.0 V 100 nA
C
2
Diode Capacitance 2 V
REV
= 2.0 V, f = 1 MHz 69.14 77.43 pF
C
4
Diode Capacitance 4 V
REV
= 4.0 V, f = 1 MHz 43.09 56.24 pF
C
6
Diode Capacitance 6 V
REV
= 6.0 V, f = 1 MHz 25.05 34.57 pF
C
9
Diode Capacitance 9 V
REV
= 9.0 V, f = 1 MHz 15.44 20.10 pF
R
S
Series Resistance V
REV
= 2.0 V, f = 70 MHz 0.5 Ω
A Capacitance Ratio C
2
/ C
9
3.70 5.00
ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °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.
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
January 2000 TOKO, Inc. Page 3
KV1430
TYPICAL PERFORMANCE CHARACTERISTICS
CAPACITANCE vs.
REVERSE VOLTAGE
VREV (V)
CAPACITANCE (pF)
10
100
0 1 2 3 4 5 6 7 8 9
TA = 25 °C
f = 1 MHz
30
200
0 2 4 6 8 10 12 14 16
VREV (V)
IREV (A)
100 p
10 p
100 f
10 f
REVERSE CURRENT vs.
REVERSE VOLTAGE
TA = 55 °C
TA = 25 °C
TA = 85 °C
1 p
QUALITY FACTOR vs.
REVERSE VOLTAGE
VREV (V)
Q
100
10
1000
0 1 2 3 4 5 6 7 8 9
f = 50 MHz
100 MHz
70 MHz
TA = 25 °C
SERIES RESISTANCE vs.
FREQUENCY
f (MHz)
RS (Ω)
0.6
0.4
0.2
VREV = 2 V
TA = 25 °C
50 100 300 500
VREV (V)
1.05
1.00
1.03
0.96
0.95
TA = +85 °C
-55 °C
-15 °C
+25 °C
+55 °C
f = 1 MHz
0 1 2 3 4 5 6 7 8 9
0.98
0.99
1.02
1.04
C (TA)
C (25 C)
vs. REVERSE VOLTAGE
C (TA)
C (25 °C)
0.97
1.01
TEMPERATURE COEFFICIENT
vs. REVERSE VOLTAGE
VREV (V)
∆C /∆ TA (ppm/ C)
1000
1000 1 2 3 4 5 6 7 8 9
300
TA = -55 °C to +85 °C
f = 1 MHz
Page 4 January 2000 TOKO, Inc.
KV1430
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 F3
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.
