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July 1999 TOKO, Inc.

Page 1

KV1420

VARIABLE CAPACITANCE DIODE

FEATURES

 Very Low Series Resistance

s

Excellent Linearity (CV Curve) with Very Wide

Operating Range

s

Large Capacitance Ratio (A = 2.57 minimum)

s

Two Diodes in a Miniature Package (SOT23-3)

s

Very Small Capacitance Deviation at Tape/Reel

APPLICATIONS

 FM Radio

s

Voltage Controlled Oscillator

s

Stereo Tuner

RANK

C

1

2

3

4

5

6

7

C

7

MIN

44.81

43.93

43.07

42.23

41.40

40.59

39.79

MAX

46.16

45.26

44.37

43.50

42.64

41.81

40.99

CLASSIFICATION

(Unit: pF)

ORDERING INFORMATION

TAPE/REEL CODE

TL: Tape Left

Tape/Reel Code

KV1420

1

2

3

20P

KV1420

DESCRIPTION

The KV1420 is a high withstanding voltage variable

capacitance diode specially designed for high grade stereo

tuners.  Superior linearity characteristics and a high

start-up voltage (7 V) provide for strong input characteristics

which make it highly suited to provide a strong front end in

mimimizing cross modulation.

The KV1420 is available in a miniature SOT23-3 package.

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Page 2

July 1999 TOKO, Inc.

KV1420

SYMBOL

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

V

REV

Reverse Voltage

I

REV

 = 10 

µ

A

30

V

I

REV

Reverse Current

V

REV

 = 25.0 V

100

nA

C

7

Diode Capacitance 7

V

REV

 = 7.0 V, f = 1 MHz

39.79

46.16

pF

C

13

Diode Capacitance 13

V

REV

 = 13.0 V, f = 1 MHz

24.25

28.70

pF

C

19

Diode Capacitance 19

V

REV

 = 19.0 V, f = 1 MHz

17.32

20.50

pF

C

25

Diode Capacitance 25

V

REV

 = 25.0 V, f = 1 MHz

13.93

16.49

pF

R

S

Series Resistance

V

REV

 = 7.0 V, f = 70 MHz

0.5

A

Capacitance Ratio

C

7

 / C

25

2.57

2.80

3.03

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:  Series Resistance 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 ....................................................... 30 V

Forward Current .................................................... 50 mA

Power Dissipation .............................................. 100 mW

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July 1999 TOKO, Inc.

Page 3

KV1420

TYPICAL PERFORMANCE CHARACTERISTICS

CAPACITANCE vs.

REVERSE VOLTAGE

VREV (V)

CAPACITANCE (pF)

10

100

0          5         10        15        20        25

30

TA = 25 

°

C

f = 1 MHz

0      4     8     12   16    20   24    28   32

VREV (V)

I REV

 (A)

1 n

100 p

1 p

100 f

REVERSE CURRENT vs.

REVERSE VOLTAGE

10 p

TA = 25 

°

C

TA = 85 

°

C

TA = 55 

°

C

QUALITY FACTOR vs.

REVERSE VOLTAGE

VREV (V)

Q

100

10

1000

0          5         10        15        20        25

TA = 25 

°

C

f = 50 MHz

100 MHz

70 MHz

SERIES RESISTANCE vs.

 FREQUENCY

f (MHz)

R

S

 (

)

0.6

0.5

0.3

VREV = 7 V

TA = 25 

°

C

  50      100                          300         500

0.4

VREV (V)

1.03

1.00

1.02

0.98

0.97

TA = +85 

°

C

-55 

°

C

 -15 

°

C

+25 

°

C

+55 

°

C

f = 1 MHz

0          5         10        15        20        25

0.99

1.01

C (T

A

)

C (25  C)

 vs. REVERSE VOLTAGE

C (TA)

C (25 

°

C)

TEMPERATURE COEFFICIENT

 vs. REVERSE VOLTAGE

VREV (V)

C /

 T

(ppm/  C)

1000

10

0          5         10        15        20        25

300

100

30

TA = -55 

°

C to +85 

°

C

f = 1 MHz

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Page 4

July 1999 TOKO, Inc.

KV1420

3

1

2

Marking

2.9

Dimensions are shown in millimeters

Tolerance: x.x = 

±

 0.2 mm (unless otherwise specified)

1.25

1.2

0 ~ 0.1

0.3

2.6

 + 0.3

0.15

 + 0.15

 0.05

1.5

0.4

30    max.

Recommended Mounting Pad

0.8

1.0

2.4

0.95

0.95

e

e

e1

0.95

0.95

e

e

0.1

0.4

 + 0.15

 0.05

 + 0.3

M

Marking Information

Product Code

F2

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.