SMV1253-011LF

Overview

The SMV1253-011LF is a silicon hyperabrupt junction tuning varactor diode from the Skyworks SMV1247-SMV1255 series, designed for low tuning voltage Voltage Controlled Oscillators (VCOs). It features a typical capacitance ratio of 12 at C0.3V/C4.7V and operates within a reverse voltage range up to 15 V. The device is housed in an SOD-323 package with a series inductance (LS) of 1.5 nH. Electrical specifications include a typical capacitance of 53 pF at 0.3 V and 4.8 pF at 4.7 V, with a maximum series resistance of 2.7 Ω at 3 V and 500 MHz.

Feature Summary

• Hyperabrupt junction design optimized for high capacitance ratios in low voltage applications
• Single configuration available in standard surface mount packages
• RoHS compliant and halogen-free construction

Applications

• Low tuning voltage Voltage Controlled Oscillators (VCOs)
• High-volume commercial RF systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for recent Product Change Notifications (PCNs) regarding manufacturing site changes. Ensure ESD handling precautions are strictly followed during storage and assembly to prevent damage to the sensitive PN junction.

Selection Notes

Select this component when a specific capacitance value near 53 pF at 0.3 V is required for VCO tuning circuits. Compare against other series members like SMV1251 or SMV1255 if different capacitance ranges are needed. Verify that the SOD-323 footprint and 1.5 nH series inductance align with the PCB layout and simulation models used in the design phase.

Part Context

This part belongs to the SMV1247-SMV1255 series of silicon hyperabrupt junction varactors. These devices share common electrical characteristics and package options but differ in nominal capacitance values. The series is engineered for battery-operated circuits requiring efficient tuning over a limited voltage swing.

Replacement Considerations

Direct substitutes are not explicitly listed in the provided datasheet. Evaluate alternative Skyworks varactors within the same series based on required capacitance and Q-factor. Cross-reference with other manufacturers' hyperabrupt varactors only after verifying package compatibility and electrical parameter alignment.