SVC704-TL-E

Overview

The SVC704-TL-E is a single varactor diode designed for Voltage-Controlled Oscillator (VCO) applications. It operates with a maximum reverse voltage of 16 V and features a low junction leakage current of 50 nA at 10 V. The device provides an interterminal capacitance range from approximately 26 pF to 4.6 pF, yielding a high capacitance ratio of 6.0 between 1.0 V and 7.0 V reverse bias conditions. Series resistance is specified at 0.8 Ω at 470 MHz. It is housed in the MCPH3 package, equivalent to SC-70 or SOT-323, and supports operation up to a junction temperature of 150 °C.

Feature Summary

• High capacitance ratio optimized for wide tuning range in VCO circuits
• Low series resistance to support high-frequency performance
• Compact surface-mount packaging suitable for space-constrained designs

Applications

• Voltage-Controlled Oscillators (VCO)
• Frequency modulation circuits
• Phase-locked loops (PLL)

Procurement Notes

Verify the component marking code TL against the datasheet to confirm authenticity. Ensure the ordering suffix matches the required tape-and-reel quantity of 3,000 pieces per reel. Confirm that the MCPH3 package dimensions align with the target PCB land pattern specifications before finalizing procurement.

Selection Notes

Select this component when a high capacitance ratio is required for broad frequency tuning in oscillator designs. Evaluate the 16 V reverse voltage rating against the maximum expected circuit bias levels. Consider the 0.8 Ω series resistance impact on quality factor if operating near the upper frequency limits of the application.

Part Context

The SVC704 belongs to onsemi's discrete varactor diode portfolio, specifically engineered for RF tuning applications. It utilizes silicon planar technology within a small outline package. This part serves as a passive variable capacitor element, replacing mechanical tuning components in modern electronic systems.

Replacement Considerations

No direct public substitute part numbers are documented in the provided source material. Cross-reference with other single varactor diodes offering similar capacitance ratios and MCPH3/SOT-323 footprints if replacement is necessary.