DATA SHEET
SMV114x Series: Hyperabrupt Junction Tuning Varactors
Applications
• High volume commercial systems
Features
• Frequency linear design
• Low series resistance
• Packages rated MSL1, 260 °C per JEDEC J-STD-020
Description
The SMV114x series of silicon hyperabrupt junction varactor
diodes is specifically designed with an increasing gamma versus
voltage characteristic. This results in improved Voltage-Controlled
Oscillator (VCO) frequency-voltage linearity compared to a
conventional hyperabrupt junction varactor.
The SMV114x family of varactors is characterized for capacitance
and resistance over temperature.
Table 1 describes the various packages and markings of the
SMV114x varactors.
Table 1. Packaging and Marking
Single
Single
SC-79
Green™
SOD-323
Green™
SMV1142-011LF
Marking: GU
SMV-1143-011LF
Marking: GV
SMV-1144-011LF
Marking: GW
SMV1145-079LF
Marking: Cathode
SMV1145-011LF
Marking: GA
SMV1147-079LF
Marking: Cathode
SMV1147-011LF
Marking: GY
SMV1148-011LF
Marking: GZ
LS = 0.7 nH
LS = 1.5 nH
The Pb-free symbol or “LF” in the part number denotes a lead-free, RoHScompliant package unless otherwise noted as Green™. Tin/lead (Sn/Pb)
packaging is not recommended for new designs.
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DATA SHEET • SMV114x VARACTORS
Table 2. SMV114x Absolute Maximum Ratings
Parameter
Symbol
Minimum
Typical
Maximum
Units
12
V
Reverse voltage
VR
Forward current
IF
20
mA
Power dissipation
PDIS
250
mW
Operating temperature
TOP
–55
+125
°C
Storage temperature
TSTG
–55
+150
°C
Note:
Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other
parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device.
CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device
must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body
or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times. The
SMV114x varactors are Class 0 Human Body Model (HBM) ESD devices.
Table 3. SMV114x Electrical Specifications (Note 1) (Note 2)
(TOP = 25 °C, Unless Otherwise Noted)
Part Number
CT @ 1 V
(pF)
CT @ 3 V
(pF)
CT @ 6 V
(pF)
CT @ 1 V
CT @ 3 V
Ratio (pF)
CT @ 1 V
CT @ 6 V
Ratio (pF)
RS @ 3 V,
500 MHz
(Ω)
Q @ 3 V,
50 MHz
Min.
Max.
Typ.
Typ.
Min.
Max.
Min.
Max.
Max.
Typ.
SMV1142
8.20
10.0
5.80
3.50
1.50
1.65
2.43
2.93
0.70
800
SMV1143
11.60
14.2
8.20
4.90
1.50
1.65
2.45
2.95
0.65
600
SMV1144
14.65
17.95
10.4
6.10
1.50
1.65
2.46
2.96
0.65
500
SMV1145
25.50
31.2
18.1
10.6
1.50
1.65
2.50
3.00
0.60
300
SMV1147
54.60
66.7
38.6
22.6
1.50
1.65
2.50
3.00
0.55
150
SMV1148
62.00
76.0
44.1
25.2
1.50
1.65
2.50
3.00
0.50
150
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Note 2: Reverse voltage, VR (IR = 10 μA): 12 V minimum.
Reverse current, IR (VR = 9.6 V): 20 nA maximum.
Electrical and Mechanical Specifications
The absolute maximum ratings of the SMV114x varactors are
provided in Table 2. Electrical specifications are provided in
Table 3. Typical performance characteristics for the SMV114x
varactors are illustrated in Figures 1 through 4. Table 4
summarizes the capacitance of the SMV114x series for reverse
voltages between 0 and 12 V.
The SPICE model for the SMV114x varactor series is shown in
Figure 5 and the associated model parameters are provided in
Table 5.
Package dimensions are provided in Figures 6 and 8. Tape and
reel dimensions are provided in Figures 7 and 9.
when the part is subjected to high temperature during solder
assembly.
The SMV114x varactors are rated to Moisture Sensitivity Level 1
(MSL1) at 260 °C. They can be used for lead or lead-free
soldering. For additional information, refer to the Skyworks
Application Note, Solder Reflow Information, document number
200164.
Care must be taken when attaching this product, whether it is
done manually or in a production solder reflow environment.
Production quantities of this product are shipped in a standard
tape and reel format.
Package and Handling Information
Instructions on the shipping container label regarding exposure to
moisture after the container seal is broken must be followed.
Otherwise, problems related to moisture absorption may occur
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DATA SHEET • SMV114x VARACTORS
Typical Performance Characteristics
Figure 1. Capacitance vs Reverse Voltage
Figure 2. Series Resistance vs Reverse Voltage
@ 500 MHz
Figure 3. Relative Capacitance Change vs Temperature
Figure 4. Relative Series Resistance Change vs Temperature
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DATA SHEET • SMV114x VARACTORS
Table 4. Capacitance vs Reverse Voltage
VR
(V)
CT
(pF)
SMV1142
SMV1143
SMV1144
SMV1145
SMV1147
SMV1148
0
13.38
18.99
24.01
41.81
89.52
104.71
0.5
10.70
15.18
19.18
33.38
71.44
83.27
1.0
9.10
12.90
16.30
28.35
60.65
70.48
1.5
7.98
11.30
14.28
24.82
53.07
61.48
2.0
7.12
10.08
12.73
22.11
47.27
54.56
2.5
6.42
9.08
11.46
19.91
42.55
48.92
3.0
5.83
8.24
10.40
18.06
38.58
44.13
3.5
5.32
7.51
9.48
16.45
35.12
39.97
4.0
4.86
6.87
8.66
15.02
32.06
36.29
4.5
4.45
6.29
7.93
13.73
29.31
32.99
5.0
4.09
5.76
7.26
12.57
26.81
30.03
5.5
3.75
5.29
6.66
11.53
24.57
27.43
6.0
3.46
4.87
6.13
10.60
22.58
25.22
6.5
3.21
4.51
5.68
9.81
20.89
23.43
7.0
3.00
4.22
5.31
9.17
19.52
22.06
7.5
2.84
3.99
5.02
8.66
18.43
21.01
8.0
2.72
3.82
4.80
8.29
17.63
20.22
8.5
2.63
3.69
4.63
7.99
16.98
19.61
9.0
2.56
3.58
4.50
7.76
16.50
19.12
9.5
2.50
3.50
4.40
7.58
16.10
18.72
10.0
2.45
3.43
4.31
7.43
15.78
18.38
10.5
2.41
3.37
4.24
7.30
15.50
18.11
11.0
2.36
3.31
4.15
7.15
15.18
17.87
11.5
2.35
3.28
4.15
7.10
15.08
17.65
12.0
2.32
3.25
4.08
7.02
14.90
17.43
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DATA SHEET • SMV114x VARACTORS
Figure 5. SPICE Model
Table 5. SPICE Model Parameters
Part Number
CJO
(pF)
VJ
(V)
VB
(V)
M
CP
(pF)
RS
(Ω)
SMV1142
13.38
2.20
12
1.00
0
0.70
SMV1143
18.99
2.20
12
1.00
0
0.65
SMV1144
24.01
2.20
12
1.00
0
0.65
SMV1145
41.80
2.50
12
1.10
0
0.60
SMV1147
89.52
2.50
12
1.10
0
0.55
SMV1148
105.00
2.31
12
1.07
0
0.50
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DATA SHEET • SMV114x VARACTORS
Figure 6. SC-79 Package Dimensions
Figure 7. SC-79 Tape and Reel Dimensions
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DATA SHEET • SMV114x VARACTORS
Figure 8. SOD-323 Package Dimensions
Figure 9. SOD-323 Tape and Reel Dimensions
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DATA SHEET • SMV114x VARACTORS
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