1999 Dec 15

2

Philips Semiconductors

Product specification

Low-voltage variable capacitance diode

BB145

FEATURES

• Ultra small plastic SMD package

• C4: 3 pF; ratio: 2.1

• Low series resistance.

APPLICATIONS

• Voltage controlled oscillators

(VCO).

DESCRIPTION

The BB145 is a planar technology

variable capacitance diode in a

SOD523 (SC-79) package.

PINNING

PIN

DESCRIPTION

1

cathode

2

anode

Fig.1 Simplified outline

(SOD523; SC-79) and symbol.

handbook, 2 columns

12



MBK441

Marking code: U.

Orientation of marking code as shown.

Cathode side indicated by a bar.

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

−−

0.6

Ω

diode capacitance

6.4

−

7.4

pF

2.75

−

3.25

pF

capacitance ratio

f = 1 MHz

2

−−

C

d1V

()

C

d4V

()

----------------