BB182,135

Overview

The BB182 is a planar technology variable capacitance diode manufactured by NXP Semiconductors. It is housed in an SOD523 (SC-79) ultra-small plastic surface-mounted package with two leads. The device operates within a reverse voltage range of up to 32 V and supports junction temperatures from -55 °C to +125 °C. Key electrical characteristics include a typical diode capacitance of 57 pF at 1 V reverse bias, decreasing to approximately 2.7 pF at 28 V. The component exhibits a capacitance ratio of 22 between 1 V and 28 V, with a low series resistance of 1.0 Ω at 100 MHz.

Feature Summary

• High linearity performance for signal integrity
• Excellent matching capability achieved through Direct Matching Assembly (DMA)
• Ultra-small plastic SMD package design
• Low series resistance for efficient operation

Applications

• Electronic tuning in VHF television tuners (Band A up to 160 MHz)
• Voltage Controlled Oscillators (VCO)

Procurement Notes

Verify the specific ordering suffix when sourcing components, as packaging quantities may vary. Confirm the current product status on the manufacturer's website, as availability can change. Ensure that the received units match the SC-79 package outline and marking codes specified in the datasheet to guarantee compatibility with intended circuit designs.

Selection Notes

Select this component for applications requiring precise capacitance matching in VHF frequency ranges. The DMA procedure ensures tight tolerance matching within sequences of ten diodes. Consider the ultra-small footprint when board space is limited. Verify that the operating voltage and temperature ranges align with the system requirements before integration.

Part Context

The BB182 belongs to the family of variable capacitance diodes designed for radio frequency and television tuner applications. It utilizes planar silicon technology to provide stable performance across varying reverse bias conditions. The component is distinct from fixed capacitors due to its voltage-dependent capacitance特性, making it suitable for electronic tuning circuits.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.