BB179,115

Overview

The BB179,115 is a UHF variable capacitance diode fabricated using planar technology and encapsulated in the SOD523 (SC-79) ultra-small surface-mount plastic package. It provides excellent matching performance achieved through gliding matching and Direct Matching Assembly procedures. The device features low series resistance and high linearity, making it suitable for Voltage Controlled Oscillators and electronic tuning in UHF tuners. Key electrical parameters include a reverse voltage of 30 V, a capacitance of 8 pF, and a minimum tuning ratio of 12 under test conditions of 0.5 V to 28 V.

Feature Summary

• Fabricated in planar technology with an ultra-small SMD plastic package
• Excellent matching performance via gliding matching and Direct Matching Assembly
• Low series resistance and great linearity characteristics

Applications

• Voltage Controlled Oscillators
• Electronic tuning in UHF tuners

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm package type matches SC-79 standards. Ensure storage conditions comply with moisture sensitivity levels. Validate part number suffixes for correct packaging orientation. Cross-reference ordering information with authorized distribution channels to avoid counterfeit components.

Selection Notes

Select this component when designing circuits requiring precise capacitance variation at UHF frequencies. Consider the small footprint for space-constrained layouts. Evaluate thermal management requirements based on power dissipation limits. Verify compatibility with existing PCB assembly processes for surface-mount technology. Assess system-level tuning range requirements against the specified minimum tuning ratio.

Part Context

This component belongs to NXP's portfolio of UHF variable capacitance diodes designed for frequency tuning applications. It shares design principles with similar devices like the BB179B, focusing on miniaturization and performance consistency. The product line supports various tuner architectures requiring stable and linear varactor characteristics across operating temperatures.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for cross-references or equivalent devices meeting identical electrical and mechanical specifications.