1999 May 12

2

Philips Semiconductors

Preliminary specification

Low-voltage variable capacitance diode

BB143

FEATURES

• Excellent linearity

• Ultra small plastic SMD package

• C4: 2.25 pF; ratio: 2.35

• Low series resistance.

APPLICATIONS

• Voltage controlled oscillators (VCO).

DESCRIPTION

The BB143 is a variable capacitance diode, fabricated in

planar technology, and encapsulated in the

SOD523 (SC-79) ultra small plastic SMD package.

PINNING

PIN

DESCRIPTION

1

cathode

2

anode

Fig.1

Simplified outline (SOD523; SC-79)

and symbol.

Marking code: L.

Orientation of marking code as shown.

Cathode side indicated by a bar.

handbook, halfpage

12

MBL026

LIMITING VALUES

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

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

continuous reverse voltage

−

6V

peak reverse voltage

in series with a 10 k

Ω resistor

−

8V

continuous forward current

−

20

mA

storage temperature

−55

+150

°C

operating junction temperature

−55

+150

°C

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

reverse current

−−

10

nA

−−

200

nA

diode series resistance

−

0.5

−Ω

diode capacitance

see Figs 2 and 4

4.75

5.3

5.75

pF

see Figs 2 and 4

2.05

2.25

2.55

pF

capacitance ratio

f = 1 MHz

2.1

2.35

−

C

d1V

()

C

d4V

()

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