HVD355BKRF-E

Overview

The HVD355B is a variable capacitance diode designed for Voltage Controlled Oscillator (VCO) applications, manufactured by Hitachi. It features a super small Flat Package (SFP) suitable for surface mount design. The device provides a high capacitance ratio of at least 2.20 and low series resistance of 0.6 Ω maximum. Electrical characteristics include a reverse current of 10 nA at 15 V reverse voltage and capacitance values ranging from 2.55 pF to 7.20 pF depending on the applied reverse bias.

Feature Summary

• High capacitance ratio for effective frequency tuning
• Low series resistance to minimize signal loss
• Super small Flat Package (SFP) optimized for surface mount technology

Applications

• Voltage Controlled Oscillators (VCO)
• Frequency modulation circuits
• Tuning circuits in RF systems

Procurement Notes

Verify the manufacturer origin as the datasheet identifies Hitachi, Ltd., while the model prefix may imply Renesas distribution or acquisition history. Confirm the specific ordering suffix matches the SFP package code 'B' and laser marking requirements. Ensure the component meets RoHS compliance standards if required by the target application environment.

Selection Notes

Select this component when a compact surface-mount varactor with a high capacitance ratio is required for VCO designs. Consider the low series resistance specification for high-frequency performance up to 470 MHz. Evaluate the absolute maximum ratings, specifically the 15 V reverse voltage limit, to ensure compatibility with the circuit's operating voltage range.

Part Context

This component is a discrete semiconductor device categorized under passive components, specifically varactor diodes. It serves as a critical element in RF front-end designs where variable capacitance is needed for frequency adjustment. The SFP package allows for automated assembly in space-constrained electronic devices.

Replacement Considerations

Check for direct equivalents from Hitachi or acquired entities like Renesas that maintain the SFP package and identical electrical parameters. Verify that any substitute offers comparable capacitance ratios and series resistance values to ensure circuit stability.