BB405B datasheet(2/4 Pages) PHILIPS

2 / 4 page

1996 May 03

Philips Semiconductors

Product speciﬁcation

UHF variable capacitance diode

BB405B

FEATURES

• Excellent linearity

• Matched to 3%

• Hermetically sealed leaded glass

SOD68 (DO-34) package

• C28: 2 pF; ratio: 8.3

• Low series resistance.

APPLICATIONS

• Electronic tuning in UHF television

tuners

• VCO.

DESCRIPTION

The BB405B is a variable

capacitance diode, fabricated in

planar technology, and encapsulated

in the hermetically sealed leaded

glass SOD68 (DO-34) package.

LIMITING VALUES

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

SYMBOL

PARAMETER

MIN.

MAX.

UNIT

continuous reverse voltage

−

continuous forward current

−

Tstg

storage temperature

−55

+150

°C

operating junction temperature

−55

+100

°C

Fig.1 Simplified outline (SOD68; DO34) and symbol.

handbook, halfpage

MAM159

Cathode side indicated by a white band on a black body.

ELECTRICAL CHARACTERISTICS

Tj =25 °C; unless otherwise speciﬁed.

Note

1. VR is the value at which Cd = 9 pF.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

reverse current

VR = 28 V; see Fig.3

−−

VR = 28 V; Tj =85 °C; see Fig.3

−−

200

diode series resistance

f = 470 MHz; note 1

−−

0.75

Ω

diode capacitance

VR = 1 V; f = 1 MHz; see Figs 2 and 4

−−

VR = 3 V; f = 1 MHz; see Figs 2 and 4

−

VR = 28 V; f = 1 MHz; see Figs 2 and 4

1.8

−

2.2

capacitance ratio

f = 1 MHz

7.6

−−

capacitance matching

VR = 0.5 to 28 V

−−

d1V

()

d28V

()

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

∆

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