Datasheet HVC374B Datasheet (HIT)

HVC374B

Variable Capacitance Diode for VCO

Features

• High capacitance ratio and good C-V linearity.

• To be usable at low voltage.

• U ltra small F lat P ackage (UFP) is suitable for surface mount design.

Ordering Information

Type No. Laser Mark Package Code

HVC374B B6 UFP

ADE-208-621(Z)

Rev 0

Jun. 1998

Outline

Cathode mark

Mark

12

B6

1. Cathode

2. Anode

HVC374B

Absolute Maximum Ratings (Ta = 25°C)

Item Symbol Value Unit

Reverse voltage V

R

Junction temperature Tj 125 °C
Storage temperature Tstg –55 to +125 °C

Electrical Characteristics (Ta = 25°C)

Item Symbol Min Typ Max Unit Test Condition

Reverse current I

Capacitance C

R1

I

R2

1

C

2

Capacitance ratio n 1.68 — 1.75 — C1/ C
Series resistance r

s

— — 10 nA VR = 10V
— — 100 VR = 10V, Ta = 60 °C

21.5 — 24.0 pF VR = 1V, f = 1 MHz

12.5 — 14.5 VR = 2V, f = 1 MHz

— — 1.2 Ω VR = 1V, f = 470 MHz

10 V

2

2

Main Characteristic

HVC374B

-10

10

-11

10

(A)

R

-12

10

Reverse current I

-13

10

-14

10

0

5

10

Reverse voltage V R (V)

Fig.1 Reverse current Vs. Reverse voltage

1.2
f=470MHz

1.0

15

25

20

15

10

Capacitance C (pF)

5

0

1.0

10

Reverse voltage V R (V)

Fig.2 Capacitance Vs. Reverse voltage

0

f=1MHz

40

(Ω)

s

0.8

0.6

0.4

Series resistance r

0.2

0

10

-1

Reverse voltage V R (V)

1.0

Fig.3 Series resistance Vs. Reverse voltage

10

)

R

-0.5

∆

∆

-1.0

F

L = (LogC)/ (LogV

-1.5

1.0

10

Reverse voltage V R (V)

Fig.4 Linearity factor Vs. Reverse voltage

10

2

3

HVC374B

Package Dimensions

12

Cathode Mark

B6

1.2 ± 0.10

1.6 ± 0.10

0.3 ± 0.05

0.8 ± 0.10

Unit : mm

1. Cathode

2. Anode

0.6 ± 0.10

Hitachi Code

JEDEC Code

EIAJ Code

Weight(g)

UFP

—

SC-79

0.0016

4

HVC374B

Cautions

1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.

2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.

3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.

4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as fail­safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.

5. This product is not designed to be radiation resistant.

6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.

7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.

Hitachi, Ltd.

Semiconductor & IC Div.
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
Tel: Tokyo [phone]
Fax: [phone]

For further information write to:

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(America) Inc.
2000 Sierra Point Parkway
Brisbane, CA. 94005-1897
U S A
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Northern Europe Headquarters
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United Kingdom
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Copyright © Hitachi, Ltd., 1998. All rights reserved. Printed in Japan.

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