SMV1273-079LF

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
203018B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 7, 2015 1
DATA SHEET
SMV1273-079LF: Hyperabrupt Junction Tuning Varactor
Applications
VHF TV tuners
VCOs
Features
Low-series resistance
High-capacitance ratio
Ultra-small SC-79 package
(MSL1, 260 °C per JEDEC J-STD-020)
Skyworks Green
TM
products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of Green
TM
, document number
SQ04–0074.
Description
The SMV1273-079LF is a silicon hyperabrupt junction varactor
diode specifically designed for battery operation. The specified
high-capacitance ratio and low-series resistance make this
varactor appropriate for low phase-noise voltage-controlled
oscillators (VCOs) used at frequencies in wireless systems up to
and above 2.5 GHz.
Applications for the SMV1273-079LF include low-noise and
wideband UHF and VHF VCOs for GSM, PCS, CDMA, and analog
phones. Table 1 describes the packaging and marking of the
SMV1273-079LF varactor.
Table 1. Packaging and Marking
Single
SC-79
Green™
SMV1273-079LF
Marking: Cathode and Y5
LS = 0.7 nH
The Pb-free symbol or “LF” in the part number denotes a lead-free, RoHS-
compliant package unless otherwise noted as Green™. Tin/lead (Sn/Pb)
packaging is not recommended for new designs.
DATA SHEET • SMV1273-079LF: HYPERABRUPT JUNCTION TUNING VARACTOR
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2 August 7, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 203018B
Electrical and Mechanical Specifications
The absolute maximum ratings of the SMV1273-079LF varactor
are provided in Table 2. Electrical specifications are provided in
Table 3. Typical capacitance values are listed in Table 4. The
relationship between capacitance and reverse voltage is
illustrated in Figure 1.
The SPICE model for the SMV1273-079LF varactor is shown in
Figure 2 and the associated model parameters are provided in
Table 5.
Package dimensions are shown in Figure 3, and tape and reel
dimensions are provided in Figure 4.
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
when the part is subjected to high temperature during solder
assembly.
The SMV1273-079LF varactor is rated to Moisture Sensitivity
Level 1 (MSL1) at 260 C. It 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.
Table 2. SMV1273-079LF Absolute Maximum Ratings (Note 1)
Parameter Symbol Minimum Typical Maximum Units
Reverse voltage VR 29 V
Forward current IF 20 mA
Power dissipation PDIS 250 mW
Operating temperature TOP –55 +125 C
Storage temperature TSTG –55 +150 C
Note 1: 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. SMV1273-079LF Electrical Specifications (Note 1)
(TOP = 25 C, Unless Otherwise Noted)
Parameter Symbol Test Condition Min Typical Max Units
Reverse current IR VR = 26 V 20 nA
Capacitance CT f = 1 MHz
V
R = 2 V
V
R = 25 V
13.6
2.0
16.9
2.4
pF
pF
Capacitance ratio CTR CT @ 2 V/CT @ 25 V 6.2 7.0
Series resistance RS f = 470 MHz, VR = 5 V 0.8 Ω
Breakdown voltage VBR IR = 10 μA 29 V
Note 1: Performance is guaranteed only under the conditions listed in this table.
DATA SHEET • SMV1273-079LF: HYPERABRUPT JUNCTION TUNING VARACTOR
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
203018B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 7, 2015 3
Table 4. Capacitance vs Reverse Voltage
VR
(V)
CT
(pF)
VR
(V)
CT
(pF)
0 31.18 9 4.32
1 20.35 10 3.94
2 15.18 12 3.42
3 11.79 14 3.06
4 9.34 16 2.81
5 7.57 18 2.61
6 6.33 20 2.45
7 5.44 25 2.15
8 4.80
Typical Performance Characteristics
Y0239
Capacitance (pF)
Reverse Voltage (VR)
0
5
10
15
20
25
30
35
0 5 10 15 20 25
Figure 1. Capacitance vs Reverse Voltage

SMV1273-079LF

Mfr. #:
Manufacturer:
Skyworks Solutions, Inc.
Description:
Varactor Diodes Ls.7nH SC-79 Single
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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