SMV1281 Series - Skyworks Solutions, Inc.

DATA SHEET
SMV1281 Series: Hyperabrupt Junction Tuning Varactors
Applications
 Wideband VCOs
 High-volume, low-cost systems
Features
 High tuning ratio
 Packages rated MSL1, 260 °C per JEDEC J-STD-020
Skyworks GreenTM products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of GreenTM, document number
SQ04–0074.
Description
The SMV1281 series of surface mount hyperabrupt junction
varactor diodes are designed for very high capacitance tuning
ratios with a low series resistance, which makes these devices
especially attractive for wideband Voltage-Controlled Oscillator
(VCO) applications.
Table 1 describes the packages and markings of the SMV1281
varactors.
Table 1. Packaging and Marking
Single
Single
SC-79
Green™
SOD-323
Green™
SMV1281-079LF
Marking: Cathode and YC
SMV1281-011LF
Marking: HP
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.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SMV1281 SERIES VARACTORS
Electrical and Mechanical Specifications
Package and Handling Information
The absolute maximum ratings of the SMV1281 varactors are
provided in Table 2. Electrical specifications are provided in
Table 3. Typical capacitance values are listed in Table 4. Typical
capacitance vs reverse voltage performance for the SMV1281
varactors is illustrated in Figure 1.
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
when the part is subjected to high temperature during solder
assembly.
The SPICE model for the SMV1281 varactor series is shown in
Figure 2 and the associated model parameters are provided in
Table 5.
The SMV1281 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.
Package dimensions are shown in Figures 3 and 5, and tape and
reel drawings are provided in Figures 4 and 6.
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.
Table 2. SMV1281 Series Absolute Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Units
24
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
Electrostatic discharge:
ESD
2000
4000
400
V
V
V
Charged Device Model (CDM), Class 4
ESD Human Body Model (HBM), Class 3A
Man-Machine (MM) Model, Class 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.
Table 3. SMV1281 Series Electrical Specifications (Note 1)
(TOP = 25 C, Unless Otherwise Noted)
Parameter
Symbol
Test Condition
Min
Typical
Max
Units
20
nA
7.8
0.6
8.6
0.7
9.5
0.8
pF
pF
Reverse current
IR
VR = 20 V
Capacitance
CT
VR = 1 V
VR = 20 V
Capacitance ratio
CTR
VR = 1 V/20 V
12
–
Resistance
RS
f = 500 MHz, VR = 1 V
1.7
Ω
Breakdown voltage
VBR
IR = 10 μA
24
Note 1: Performance is guaranteed only under the conditions listed in this table.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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August 7, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200066L
V
DATA SHEET • SMV1281 SERIES VARACTORS
Table 4. Capacitance vs Reverse Voltage
VR
(V)
CT
(pF)
0
13.30
1
8.60
2
6.30
3
4.80
4
3.60
5
2.70
6
2.00
7
1.60
8
1.40
9
1.20
10
1.10
11
1.00
12
0.94
13
0.89
14
0.85
15
0.81
16
0.78
17
0.75
18
0.73
19
0.71
20
0.69
Typical Performance Characteristics
14
Capacitance (pF)
12
10
8
6
4
2
0
0
2
4
6
8
10
12
14
16
18
20
Reverse Voltage (V)
Figure 1. Capacitance vs Reverse Voltage
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200066L • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 7, 2015
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DATA SHEET • SMV1281 SERIES VARACTORS
PORT
P_anode
port = 1
IND
LS
L = LS
RES
RS
R = RS
CAP
CP
C = CP
DIODE
Varactor_Diode
AREA = 1
MODEL = Diode_Model
MODE = nonlinear
DIODEM
Diode_Model
IS = 1.00e-14
RS = 0
N=1
TT = 0
CJO = CJO
M=M
VJ = VJ
EG = 1.11
XTI = 3
KF =0
AF =1
PORT
P_Cathode
port = 2
FC = 0.5
BV = 0
IBV = 1e-3
ISR = 0
NR = 2
IKF = 0
NBV = 1
IBVL = 0
NBVL = 1
TBV1 = 0
TNOM = 27
FFE = 1
S1672
Figure 2. SPICE Model
Table 5. SPICE Model Parameters
Part Number
SMV1281-011LF
SMV1281-079LF
CJO
(pF)
VJ
(V)
M
CP
(pF)
RS
(Ω)
LS
(nH)
13
14
6
0.62
1.7
1.2
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August 7, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200066L
DATA SHEET • SMV1281 SERIES VARACTORS
Box
or
Bar
Polarity
Indicator Area
0.006 (0.15 mm) Min.
0.010
(0.25 mm) Min.
0.014
(0.35 mm) Max.
1
2
0.028
(0.70 mm) Min.
0.035
(0.90 mm) Max.
0.060 (1.50 mm) Min.
0.067 (1.70 mm) Max.
0.043 (1.10 mm) Min.
0.051 (1.30 mm) Max.
10° Max.
0.020
(0.50 mm) Min.
0.028
(0.70 mm) Max.
0.003
(0.07 mm) Min.
0.008
(0.20 mm) Max.
10° Max.
Dimensions are in inches (millimeters shown in parentheses)
S1652
Figure 3. SC-79 Package Dimensions
Ø1.50± 0.10
4.00 ± 0.10
4.00 ± 0.10
2.00 ± 0.05
0.229 ± 0.02 (T)
1.75 ± 0.10
B
A
B
Pin 1 Indicator
0.80 ± 0.05 (Ko)
B
8.00 ± 0.20
A
3.50 ± 0.05
1.40 ± 0.05
1.95 ± 0.05 (Bo)
2° Max
Ø0.50± 0.05
0.39 ± 0.05
2o Max
0.90 ± 0.05 (Ao)
A
Notes:
1. Carrier tape: black conductive polycarbonate or polystyrene.
2. Cover tape material: transparent conductive PSA.
3. Cover tape size: 5.4 mm width.
4. ESD-surface resistivity is ≤1 x 108 Ohms/square per
EIA, JEDEC TNR Specification.
4. All measurements are in millimeters.
S2929
Figure 4. SC-79 Tape and Reel Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SMV1281 SERIES VARACTORS
0.060 (1.52 mm) Min.
0.070 (1.78 mm) Max.
0.090 (2.29 mm) Min.
0.107 (2.72 mm) Max.
0.044
(1.12 mm) Min.
0.054
(1.37 mm) Max.
1
0.000 (0 mm) Min.
0.004 (0.10 mm) Max.
0.013
(0.33 mm) Min.
0.017
(0.43 mm) Max.
2
0.012 (0.305 mm) Min.
0.016 (0.406 mm) Max.
Cathode
Indicator
0.036 (0.91 mm) Min.
0.046 (1.17 mm) Max.
0.008 Ref.
0.025
(0.635 mm) Min.
0.037
(0.940 mm) Max.
Gauge Datum
For Foot Length
Measurement
0.005 (0.127 mm) Min.
0.008 (0.203 mm) Max.
0.010 (0.25 mm) Min.
0.018 (0.46 mm) Max.
Dimensions are in inches (millimeters shown in parentheses)
S1619
Figure 5. SOD-323 Package Dimensions
4.00
2.00 ± 0.05
Pin 1
Indicator
Ø1.00 Min.
4.00
(See Note 4)
1.75 ± 0.10
A
R0.3 Max.
3.50 ± 0.05
2.90 (Bo)
2.08
1.35 (Ko)
A
1.52 (Ao)
R0.5 Typ.
1.07 (K1)
A
0.84
Notes:
1. Carrier tape: black conductive polystyrene.
2. Cover tape: transparent conductive PSA.
3. Cover tape size: 5.4 mm width.
4. 10 sprocket hole pitch cumulative tolerance: ±0.20 mm.
5. All measurements are in millimeters.
Figure 6. SOD-323 Tape and Reel Dimensions
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8.00 +0.30/–0.10
0.30 ± 0.05
Ø1.50 +0.1/–0
August 7, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200066L
S2910
DATA SHEET • SMV1281 SERIES VARACTORS
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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200066L • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 7, 2015
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