SMV1213-004LF

Overview

The SMV1213-004LF is a silicon hyperabrupt junction tuning varactor diode from the Skyworks SMV121x series, designed for low tuning voltage Voltage Controlled Oscillators (VCOs). It features a typical capacitance ratio of 5.0 at C1V/C4V and operates within a reverse voltage range up to 12 V. The device is housed in an SOD-882 package with a series inductance of 0.45 nH. Electrical specifications include a typical capacitance of 18.1 pF at 1 V and 5.5 pF at 4 V, with a series resistance of 1.4 Ω at 4 V and 500 MHz. Operating temperatures range from -55°C to +125°C.

Feature Summary

• Hyperabrupt junction design optimized for low tuning voltage applications
• High capacitance ratio for improved frequency tuning linearity
• Moisture Sensitivity Level 1 rated for standard soldering processes

Applications

• Low tuning voltage Voltage Controlled Oscillators (VCOs)
• High-volume commercial RF systems
• Electronically tunable filters and matching networks

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance and lead-free status via official documentation. Ensure storage conditions adhere to MSL1 guidelines to prevent moisture absorption prior to solder assembly. Cross-reference datasheet revisions to confirm current electrical parameters.

Selection Notes

Select this component when a high capacitance ratio is required for linear tuning characteristics in VCO designs. The SOD-882 package offers a compact footprint suitable for space-constrained layouts. Verify that the 12 V reverse voltage rating aligns with the circuit's maximum bias requirements and that the 0.45 nH series inductance meets the target frequency stability goals.

Part Context

The SMV1213-004LF belongs to the SMV121x family of hyperabrupt junction varactors. This series includes variants such as the SMV1213-079LF and SMV1215-001LF, which share similar electrical characteristics but differ in packaging and specific capacitance values. All members are engineered for low-voltage operation in commercial RF applications.

Replacement Considerations

SMV1213-079LF: Identical electrical performance in SC-79 package. SMV1213-001LF: Identical electrical performance in SOT-23 package. SMV1213-040LF: Identical electrical performance in SOD-882 package.