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Product Detailed Parameters
- Description：IC
- Series：-
- Mfr：Skyworks Solutions Inc.
- Package：Tape & Reel (TR)
- Capacitance @ Vr, F：-
- Capacitance Ratio：12
- Capacitance Ratio Condition：C1/C20
- Voltage - Peak Reverse (Max)：24 V
- Diode Type：Single
- Q @ Vr, F：-
- Operating Temperature：-55°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SC-76, SOD-323
- Supplier Device Package：SOD-323
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Overview
The SMV1281-011LF is a hyperabrupt junction tuning varactor diode manufactured by Skyworks Solutions Inc. It is designed for high-performance RF applications requiring wide tuning ratios. The component features a single diode configuration housed in an SOD-323 surface-mount package with an internal series inductance of 1.5 nH. Key electrical specifications include a peak reverse voltage of 15 V and a forward current rating of 20 mA. The device operates within a temperature range of -55°C to +125°C. It is RoHS compliant and lead-free, intended for use in voltage-controlled oscillators and frequency synthesizers.
Feature Summary
- Hyperabrupt junction design provides enhanced capacitance variation for improved tuning linearity.
Applications
- Voltage-controlled oscillators (VCOs)
- Frequency synthesizers
- Phase-locked loops (PLLs)
Procurement Notes
Verify the specific suffix against official Skyworks documentation to confirm pinout and electrical tolerances. Confirm end-of-life status through manufacturer notifications prior to finalizing procurement plans. Ensure compatibility with existing PCB footprints and reflow soldering profiles specified in the datasheet.
Selection Notes
Select this component when a hyperabrupt capacitance-voltage characteristic is required for wideband tuning applications. Compare the 1.5 nH internal inductance against circuit requirements to ensure impedance matching. Verify that the 15 V reverse voltage rating exceeds the maximum expected bias voltage in the target design.
Part Context
This part belongs to the SMV1281 series of hyperabrupt tuning varactors from Skyworks Solutions. The series is engineered for RF front-end modules where precise frequency control is critical. The SOD-323 package allows for compact integration into modern mobile and wireless communication devices.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Evaluate alternative Skyworks varactors with similar hyperabrupt characteristics and SOD-323 packaging if direct substitution is necessary.
FAQ
What type of junction does the SMV1281-011LF utilize?
It utilizes a hyperabrupt junction design optimized for tuning varactor applications.
What is the internal series inductance value?
The internal series inductance is 1.5 nH.
Is the component RoHS compliant?
Yes, the SMV1281-011LF is RoHS compliant and lead-free.
