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.
CLASSIFICATION
RANK
C
MIN
C
2
MAX
1
43.00
44.60
2
44.00
45.60
3
45.00
46.60
(Unit: pF)
4
46.00
47.60
KV1440
3
20 P
ORDERING INFORMATION
1
2
KV1440
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
January 2000 TOKO, Inc.
Page 1
KV1440
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: T
A
= 25
°C
SYMBOL
V
REV
I
REV
C
2
Q
A1
A2
PARAMETER
Reverse Voltage
Reverse Current
Diode Capacitance 2
Quality Factor
Capacitance Ratio
Capacitance Ratio
TEST CONDITIONS
I
REV
= 10 µA
V
REV
= 10.0 V
V
REV
= 2.0 V, f = 1 MHz
V
REV
= 3.0 V, f = 100 MHz
C
2
/ C
4
C
2
/ C
8
MIN
16
TYP
MAX
UNITS
V
50
43.00
100
1.23
1.65
1.33
1.75
47.60
nA
pF
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.
Page 2
January 2000 TOKO, Inc.
KV1440
TYPICAL PERFORMANCE CHARACTERISTICS
CAPACITANCE vs.
REVERSE VOLTAGE
100
TA = 25
°C
f = 1 MHz
CAPACITANCE (pF)
REVERSE CURRENT vs.
REVERSE VOLTAGE
1n
TA = 85
°C
100 p
IREV (A)
10 p
TA = 55
°C
30
1p
TA = 25
°C
10
0
1
2
3
4
5
6
7
8
VREV (V)
100 f
0
2
4
6
8
10
12
14 16
VREV (V)
QUALITY FACTOR vs.
REVERSE VOLTAGE
1000
TA = 25
°C
f = 50 MHz
RS (Ω)
SERIES RESISTANCE vs.
FREQUENCY
0.5
VREV = 2 V
TA = 25
°C
0.4
Q
100
100 MHz
70 MHz
0.3
10
0.2
0
1
2
3
4
5
6
7
8
50
100
f (MHz)
300
500
VREV (V)
C (TA)
C (25
°C)
vs. REVERSE VOLTAGE
TEMPERATURE COEFFICIENT
vs. REVERSE VOLTAGE
1000
TA = -55
°C
to +85
°C
f = 1 MHz
1.05
1.04
1.03
1.02
f = 1 MHz
C (25 C)
C (TA)
1.01
1.00
0.99
0.98
0.97
0.96
0.95
0
1
+55
°C
+25
°C
-15
°C
-55
°C
∆C
/∆ TA (ppm/ C)
7
8
TA = +85
°C
300
2
3
4
5
6
100
0
1
2
3
4
5
6
7
8
VREV (V)
VREV (V)
January 2000 TOKO, Inc.
Page 3
KV1440
PACKAGE OUTLINE
Marking Information
Product Code
F4
SOT23-3
Mark
0.10
0.4
+ 0.05
Recommended Mounting Pad
0.1
M
1.3 max
1.1
0 ~ 0.1
0.15
+ 0.10
0.05
+ 0.1
2.8
Dimensions are shown in millimeters
Tolerance: x.x =
±
0.2 mm (unless otherwise specified)
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.
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