Datasheet BB182B Datasheet (Philips)

DISCRETE SEMICONDUCTORS

DATA SH EET

M3D319

BB182B

VHF variable capacitance diode

Preliminary specification 1999 Sep 15

Philips Semiconductors Preliminary specification

VHF variable capacitance diode BB182B

FEATURES

• High linearity

• Excellent matching to 2% DMA

• Ultra small plastic SMD package

• C25: 2.8 pF; ratio: 17

• Low series resistance.

APPLICATIONS

• Electronic tuning in VHF television
tuners, band A up to 160 MHz

• Voltage controlled oscillators

DESCRIPTION

The BB182B is a planar technology
variable capacitance diode in a
SOD523 (SC-79) package. The
excellent matching performance is
achieved by gliding matching and a
direct matching assemblyprocedure.

PINNING

PIN DESCRIPTION

1 cathode
2 anode

handbook, 2 columns

12

Y

MBK441

Marking code: Y.
Orientation of marking code as shown.
Cathode side indicated by a bar.

Fig.1 Simplified outline

(SOD523; SC-79) and symbol.

(VCO).

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

R

V

RM

I

F

T

stg

T

j

continuous reverse voltage − 34 V
peak reverse voltage in series with a 10 kΩ resistor − 35 V
continuous forward current − 20 mA
storage temperature −55 +150 °C
operating junction temperature −55 +150 °C

ELECTRICAL CHARACTERISTICS

Tj=25°C unless otherwise specified.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

I

R

r

s

C

d

C

d2V()

------------------­C

d25V()

C

∆

d

---------­C

d

reverse current VR= 32 V; see Fig.3 −−10 nA

V

= 32 V; Tj=85°C; see Fig.3 −−200 nA

R

diode series resistance f = 470 MHz; VR=5V −−1.1 Ω
diode capacitance VR= 2 V; f = 1 MHz; see Figs 2 and 4 47 − 53 pF

= 25 V; f = 1 MHz; see Figs 2 and 4 2.65 − 3pF

V

R

capacitance ratio f = 1 MHz 17 −−

capacitance matching VR= 2 to 25 V; in a sequence of 15

−−2%

diodes (gliding)

1999 Sep 15 2

Philips Semiconductors Preliminary specification

VHF variable capacitance diode BB182B

GRAPHICAL DATA

80

handbook, full pagewidth

C

d

(pF)

60

40

20

0

−1

10

f = 1 MHz; Tj=25°C.

1

10 10

VR (V)

Fig.2 Diode capacitance as a function of reverse voltage; typical values.

MCD783

2

3

10

handbook, halfpage

I

R

(nA)

2

10

10

50

o

T ( C)

j

Fig.3 Reversecurrentasafunctionofjunction

temperature; maximum values.

MLC816

V (V)

R

MLC815

2

3

10

handbook, halfpage

TC

d

(K−1)

4

10

5

10

1

1000

10

11010

Fig.4 Temperature coefficient of diode

capacitance as a function of
reverse voltage; typical values.

1999 Sep 15 3

Philips Semiconductors Preliminary specification

VHF variable capacitance diode BB182B

PACKAGE OUTLINE

Plastic surface mounted package; 2 leads SOD523

A

c

v

M

H

E

A

D

12

b

E

p

(1)

OUTLINE
VERSION

SOD523 SC-79

IEC JEDEC EIAJ

A

REFERENCES

0 0.5 1 mm

scale

DIMENSIONS (mm are the original dimensions)

UNIT b

mm

Note

1. The marking bar indicates the cathode.

A

0.7

0.5

0.35

0.25

cD

p

0.2

0.1

EUROPEAN

PROJECTION

1.3

1.1

E

0.9

0.7

ISSUE DATE

H

1.7

1.5

98-11-25

v

E

0.15

1999 Sep 15 4

Philips Semiconductors Preliminary specification

VHF variable capacitance diode BB182B

DEFINITIONS

Data sheet status

Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.

1999 Sep 15 5

Philips Semiconductors Preliminary specification

VHF variable capacitance diode BB182B

NOTES

1999 Sep 15 6

Philips Semiconductors Preliminary specification

VHF variable capacitance diode BB182B

NOTES

1999 Sep 15 7

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68

Printed in The Netherlands 125004/01/pp8 Date of release: 1999 Sep 15 Document order number: 9397 750 06305