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BB639 Datasheet, PDF (3/3 Pages) Siemens Semiconductor Group – Silicon Variable Capacitance Diode (For tuning of extended frequency bands in VHF TV/VTR tuners)
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BB639/BB659...
Diode capacitance CT = (VR)
f = 1MHz
40
pF
30
25
20
15
10
5
00
5
10
15
20
V
30
VR
Temperature coefficient of the diode
capacitance TCc =  (VR)
10 -3
1/°C
10 -4
10
-5
10
0
10 1
V
10 2
VR
Reverse current IR =  (TA)
VR = 28V
10 3
pA
10 2
Reverse current IR = (VR)
TA = Parameter
10 3
pA
85°C
10 2
25°C
10 1
10 1
10 0
10 0
-30 -10
10
30
50
70 °C 100
TA
10
-1
10
0
3
10 1
V
10 2
VR
Nov-07-2002