Datasheet KV1835ETR Datasheet (TOKOM)

KV1835E

VARIABLE CAPACITANCE DIODE

FEATURES

■ Very Small URD Surface Mount Package

■ Very Low Operating Voltage (1 to 4 V)

■ Large Capacitance Ratio (A = 2.8 minimum)

■ Excellent Linearity (CV Curve)

■ Very Small Capacitance Deviation at Tape/Reel

■ Very Low Series Resistance

DESCRIPTION

The KV1835E is a variable capacitance diode designed for
UHF applications.

The KV1835E is available in a very small URD Surface
Mount Package.

CLASSIFICATION

RANK

C

12 3

(Unit: pF)

APPLICATIONS

■ Communications Equipment

■ Multi-Channel Cordless Telephone

■ Voltage Controlled Oscillator

■ UHF Wireless Communication Systems

KV1835E

MIN 11.8 12.3 13.0

C

2

Note: Rank is determined after testing and marked on the
reel. All the diodes on a reel have the same rank, but rank
can not be specified when ordering.

MAX 12.6 13.3 13.8

ORDERING INFORMATION

KV1835E

Tape/Reel Code

TAPE/REEL CODE

TR: Tape Right

August 1999 TOKO, Inc. Page 1

KV1835E

ABSOLUTE MAXIMUM RATINGS

Reverse Voltage....................................................... 28 V

Forward Current .................................................... 10 mA

Power Dissipation ................................................ 50 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

V

REV

I

REV

C

0.5

C

2

R

S

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.

Reverse Voltage I
Reverse Current V
Diode Capacitance 0.5 V
Diode Capacitance 2 V

Series Resistance V

= 10 µA 20 V

REV

= 16 V 5.0 nA

REV

= 0.5 V, f = 1 MHz 36.5 42.5 pF

REV

= 2 V, f = 1 MHz 11.8 13.8 pF

REV

= 1.5 V, f = 100 MHz 0.6

REV

0.5

/ C

2

2.8

Ω

Page 2 August 1999 TOKO, Inc.

TYPICAL PERFORMANCE CHARACTERISTICS

KV1835E

CAPACITANCE vs.

REVERSE VOLTAGE

100

TA = 25 °C
f = 1 MHz

10

C (pF)

1

0 1 2 3

V

(V)

REV

QUALITY FACTOR vs.

1000

100

Q

REVERSE VOLTAGE

f = 50 MHz

100 MHz

300 MHz

REVERSE CURRENT vs.

REVERSE VOLTAGE

TA = 85 °C

TA = 55 °C

TA = 25 °C

0 4 8 12 16 20

V

(V)

REV

SERIES RESISTANCE vs.

FREQUENCY

V

REV

TA = 25 °C

(nA)

REV

I

0.01

0.001

1.0

(Ω)

S

R

1

0.1

= 2 V

470 MHz

0.1
50 100 300 1000

f (MHz)

CAPACITANCE TEMPERATURE

COEFFICIENT vs. REVERSE VOLTAGE

10000

TA = -55 °C to +85 °C
f = 1 MHz

1000

(ppm/ C)

A

∆C / T

300

100

0 1 2 3

V

(V)

REV

)

A

C (T

10

0 1 2 3

V

(V)

REV

C (TA)

1.10

1.06

1.02

C (25 C)

0.98

0.94

0.90

C (25 °C)

TA = 85 °C

-15 °C

-55 °C

0 1 2 3

vs. TEMPERATURE

55 °C

25 °C

V

REV

(V)

August 1999 TOKO, Inc. Page 3

KV1835E

PACKAGE OUTLINE

URD

Cathode Mark

1.7

Marking

+0.15

-0.05

Marking Information

Product Code J

2.3

0.8

0.8

1.25

Recommended Mount Pad

0.9

0.13

0.2 min

+ 0.3

2.5

Dimensions are shown in millimeters
Tolerance: x.x = ± 0.2 mm (unless otherwise specified)

0.3

0 ~ 0.1

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Tel: [phone] Fax: [phone]

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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 August 1999 TOKO, Inc.

All Rights Reserved

IC-xxx-KV11835E

0798O0.0K

Printed in the USA© 1999 Toko, Inc.