SMV1283-011LF

Overview

The SMV1283-011LF is a hyperabrupt junction tuning varactor diode manufactured by Skyworks Solutions, Inc. It is housed in an SOD-323 package with a series inductance (LS) of 1.7 nH. The device operates within a reverse voltage range up to 28 V and supports power dissipation of 250 mW. Electrical specifications at 25 °C include a typical capacitance of 9.10 pF at 1 V reverse bias and 0.62 pF at 26 V reverse bias. The component exhibits a typical capacitance ratio of 14.7 and a series resistance of 2.4 Ω at 500 MHz.

Feature Summary

• Designed for very high capacitance tuning ratios suitable for wideband applications
• Features low series resistance to optimize performance in RF circuits
• Utilizes hyperabrupt junction technology for enhanced tuning characteristics

Applications

• Wideband Voltage Controlled Oscillators (VCOs)

Procurement Notes

Verify the specific ordering suffix to confirm the package type, as the SMV1283 series includes variants like the -040LF which uses an SOD-882 package. Confirm lead-free status and RoHS compliance through official manufacturer documentation before procurement. Ensure ESD precautions are strictly followed during handling and storage to prevent damage to the semiconductor junction.

Selection Notes

Select the SMV1283-011LF when a standard SOD-323 footprint is required for wideband VCO designs. Compare its 1.7 nH series inductance against the 0.45 nH inductance of the SOD-882 packaged variant if space constraints or parasitic effects dictate a smaller form factor. Review SPICE model parameters for circuit simulation accuracy prior to finalizing the design.

Part Context

This component belongs to the SMV1283 series of silicon hyperabrupt junction tuning varactors. The series is engineered specifically for applications demanding high capacitance tuning ratios combined with low series resistance. The product line is compliant with RoHS standards and utilizes Green packaging materials that are halogen-free.

Replacement Considerations

The SMV1283-040LF serves as a direct functional alternative within the same series but utilizes an SOD-882 package with reduced series inductance. Verify pinout compatibility and physical footprint differences before substituting this part in existing layouts.