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Tuning Varactors: TV 2100, 2800 Series
UHF Hyperabrupt Tuning Varactors
Description
The MicroMetrics UHF Tuning
Varactors offer higher Qs than their
VHF counterparts, but have slightly
lower capacitance ratios. These diodes
are excellent for octave tuning up to
800 MHz and for straight-line-frequency
tuning between 3 and 8 volts of bias.
They also achieve exceptionally high Q
values and large signal capabilities
when tuned between 9 and 20 volts,
which extends their useful range to
over 1 GHz. Closely matched sets are
available, designated by suffix A.
www.DataSheet4U.com
Features
High Reliability, Silicon Planar
Octave Tuning at UHF
Octave Tuning at VHF
Straight-Line Frequency Applications
over 3 to 8 Volt Bias Range
Low Cost Applications
Packaging
Hermetically Sealed
Electrical Characteristics
Total Capactiance, Ct1
F = 1 MHz
(pF)
Vr = 3 Vdc
MIN/MAX
Vr = 8 Vdc
MIN/MAX
Vr = 20 Vdc
MIN/MAX
10.5/12.5
10.9/12.1
10.5/12.5
10.9/12.1
10.5/12.5
10.9/12.1
10.5/12.5
25/31
26.5/29.5
25/31
26.5/29.5
25/31
26.5/29.5
25/31
4.3/5.7
4.6/5.4
4.3/5.7
4.6/5.4
4.3/5.7
4.6/5.4
-
10/13.5
11/13
10/13.5
11/13
10/13.5
11/13
-
2.0/2.3
2.0/2.3
2.0/2.4
2.0/2.4
-
-
-
4.5/5.1
4.5/5.1
4.5/5.3
4.5/5.3
-
-
-
Notes:
1. Capacitance is measured in standard case style CS85.
Tuning Ratio Tr
F = 1 MHz
C(3V)/C(20V)
MIN/MAX
5.0/5.8
5.0/5.8
4.7/5.5
4.7/5.5
-
-
-
5.2/6.1
5.2/6.1
4.9/5.8
4.9/5.8
-
-
-
C(3V)/C(8V)
MIN/MAX
-
-
-
-
1.9/2.7
2.0/2.6
-
-
-
-
-
1.9/2.8
2.0/2.7
-
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MicroMetrics, Inc. 136 Harvey Road, Building C, Londonderry, NH 03053
Voice: 603-641-3800, Fax: 603-641-3500, Internet: www.micrometrics.com, E-mail: serv@micrometrics.com

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Tuning Varactors: TV 2100, 2800 Series
Typical Performance
60
50
40
30
20
10 TV2801
8
6
4
TV2101
3
2
1
12
www.DataSheet4U.com
3 4 5 6 8 10
REVERSE VOLTAGE
(V)
20 30
4000
3000
2000
1000
800
600
500
400
300
200
100
1
Q= 1
2 π f RSCT
TV2101
TV2801
2 3 4 5 6 8 10
REVERSE VOLTAGE
(V)
20 30
Q
Vr = 3 Vdc
F = 50 MHz
MIN/TYP
300/350
300/350
200/300
200/300
200/300
200/300
100/150
200/250
200/250
150/200
150/200
150/200
150/200
75/100
Vbr
(Vdc)
Ir = 10 µAdc
MIN/TYP
22/30
22/30
22/30
22/30
15/18
15/18
8/12
22/30
22/30
22/30
22/30
15/18
15/18
8/12
Ir
(nAdc)
Vr = 6 Vdc
TYP/MAX
-
-
-
-
50/500
-
-
-
-
-
-
50/500
Vr = 10 Vdc
TYP/MAX
-
-
50/500
50/500
-
-
-
-
-
50/500
50/500
-
Vr = 20 Vdc
TYP/MAX
10/100
10/100
10/100
10/100
-
-
-
20/100
20/100
20/100
20/100
-
-
-
Part
Number
TV2101
TV2101A
TV2102
TV2102A
TV2103
TV2103A
TV2104
TV2801
TV2801A
TV2802
TV2802A
TV2803
TV2803A
TV2804
Maximum Ratings
Parameter
Reverse Voltage
Forward Current
Power Dissipation
Operating Temperature
Storage Temperature
Symbol
Vr
If
Pd (25°C)
Top
Tstg
Value
Same as Vbr
100
250
-55 to + 150
-65 to + 200
Units
Volts
mA
mW
°C
°C
MicroMetrics, Inc. 136 Harvey Road, Building C, Londonderry, NH 03053
Voice: 603-641-3800, Fax: 603-641-3500, Internet: www.micrometrics.com, E-mail: serv@micrometrics.com
29