DATA SHEET
SMV1247-SMV1255 Series: Hyperabrupt Junction Tuning
Varactors
Applications
Low tuning voltage VCOs
High-volume commercial systems
Features
High capacitance ratio: C0.3V/C4.7V = 12 typical
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 SMV1247-SMV1255 group of silicon hyperabrupt junction
varactor diodes is designed for use in Voltage Controlled
Oscillators (VCOs) with a low tuning voltage operation. This group
of varactors is characterized for capacitance and resistance over
temperature.
Table 1 describes the various packages and markings of the
SMV1247 to SMV1255 varactors.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200061V • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 12, 2019
1
DATA SHEET • SMV1247-SMV1255 VARACTORS
Table 1. Packaging and Marking
Single
Single
Single
Common Cathode
Single
SC-79
Green™
SOD-323
Green™
SOT-23
SOT-23
SOD-882
Green™
♦SMV1247-079LF
Marking: Cathode and AH
SMV1247-040LF
Marking: H
SMV1248-079LF
Marking: Cathode and CH
♦SMV1249-079LF
Marking: Cathode and EH
SMV1249-011LF
Marking: EF
SMV1249-040LF
Marking: K
SMV1251-079LF
Marking: Cathode and FH
SMV1251-040LF
Marking: EH1
SMV1253-040LF
Marking: 3
SMV1253-079LF
Marking: Cathode and GH
SMV1253-011LF
Marking: EJ
SMV1253-004LF
Green™
Marking: EJ3
SMV1255-040LF
Marking: 4
♦SMV1255-079LF
Marking: Cathode and HH
SMV1255-011LF
Marking: EK
SMV1255-001LF
Green™
Marking: EK1
LS = 0.7 nH
LS = 1.5 nH
LS = 1.5 nH
LS = 1.5 nH
LS = 0.45 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.
Electrical and Mechanical Specifications
Package and Handling Information
The absolute maximum ratings of the SMV1247-SMV1255 group
of varactors are provided in Table 2. Electrical specifications are
provided in Table 3. Typical capacitance values are listed in
Table 4. Typical performance characteristics of the
SMV1247-SMV1255 varactors are illustrated in Figures 1
through 4.
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 SMV1247-SMV1255 varactors is shown
in Figure 5, and the associated model parameters are provided in
Table 5.
Package dimensions are shown in Figures 6 to 12 (even
numbers), and tape and reel dimensions are provided in Figures 7
to 13 (odd numbers).
The SMV1247-SMV1255 group of 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.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2
September 12, 2019 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200061V
DATA SHEET • SMV1247-SMV1255 VARACTORS
Table 2. SMV1247-SMV1255 Absolute Maximum Ratings1
Parameter
Symbol
Minimum
Maximum
Units
15
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
1000
250
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