BB639 datasheet(2/3 Pages) SIEMENS

Part #	BB639

Description	Silicon Variable Capacitance Diode (For tuning of extended frequency bands in VHF TV/VTR tuners)

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Manufacturer	SIEMENS [Siemens Semiconductor Group]

Direct Link	http://www.siemens.com/

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BB 639

Semiconductor Group

2

Electrical Characteristics

at

T

A = 25 °C, unless otherwise specified.

Parameter

Symbol

Value

Unit

min.

typ.

max.

DC Characteristics

Reverse current

V

R =30V

V

R =30V, TA = 85 °C

I

R

–

10

200

nA

Diode capacitance

V

R =1V, f = 1 MHz

V

R =28V, f = 1 MHz

C

T

36

2.4

38.3

2.6

42

2.9

pF

Capacitance ratio

V

R = 1 V, 28 V, f = 1 MHz

C

T1/CT28

13.5

14.7

–

Capacitance matching

V

R = 1 V … 28 V, f = 1 MHz

∆C

T/CT

–

2.5

%

Series resistance

C

T =12pF, f = 100 MHz

r

S

–

0.65

–

Ω

Series inductance

L

S

–2–nH

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