SMVA1470-004LF

Overview

The SMVA1470-004LF is a dual silicon hyperabrupt junction varactor diode in a common cathode configuration. It operates within an ambient temperature range of -55 °C to +125 °C and withstands a forward current of 20 mA with 250 mW power dissipation. At 1 MHz, capacitance measures 65.8 pF at 1 V reverse bias and 12.0 pF at 4.5 V reverse bias. The series resistance is 0.8 Ω at 900 MHz under 1.5 V reverse bias. Breakdown voltage occurs at 10 V with 10 μA reverse current.

Feature Summary

• AEC-Q101 qualified for automotive reliability
• High capacitance ratio suitable for low-noise tuning applications
• SOT-23 package rated MSL1 at 260 °C

Applications

• Low-noise VCOs and VCXOs in wireless systems
• In-vehicle infotainment
• Navigation
• Telematics
• Garage door openers

Procurement Notes

Verify the AEC-Q101 qualification status directly through Skyworks documentation before procurement. Confirm that the SOT-23 package dimensions align with the target PCB layout. Ensure handling procedures account for ESD sensitivity despite robust design specifications.

Selection Notes

Select this component when high capacitance ratios are required for precise frequency control in automotive environments. Evaluate the 0.8 Ω series resistance impact on phase noise performance. Verify compatibility with lead-free soldering processes given the 260 °C thermal rating.

Part Context

This part belongs to the SMV1470 family of hyperabrupt junction tuning varactors. It shares similar electrical characteristics with standard commercial variants but includes specific automotive qualification requirements. The 'A' prefix indicates its compliance with automotive industry standards.

Replacement Considerations

SMV1470-004LF serves as the commercial equivalent without automotive certification.