BB131,135

Overview

The BB131,135 is a single varactor diode manufactured by NXP USA Inc., designed for surface-mount applications in the SOD-323 package. It features a peak reverse voltage of 30 V and operates within a junction temperature range of -55°C to 125°C. The device exhibits a capacitance of 1.055 pF at 28 V and 1 MHz, with a capacitance ratio of 16.0 measured under conditions of C0.5/C28. This component is classified as a single-path variable capacitor suitable for RF tuning circuits.

Feature Summary

• Single-path varactor configuration for precise capacitance control
• Surface-mount construction in a compact SOD-323 package
• High thermal stability across extended operating temperatures

Applications

• RF circuit tuning
• Voltage-controlled oscillator (VCO) frequency adjustment
• Filter tuning networks

Procurement Notes

Verify the specific ordering suffix against official NXP documentation to confirm exact packaging and tape-and-reel specifications. Confirm RoHS compliance status and REACH registration details directly with the manufacturer or authorized distributors prior to procurement. Ensure the selected variant matches the required SOD-323 footprint and electrical tolerances for the target design.

Selection Notes

Select this component based on its 30 V peak reverse voltage rating and 1.055 pF capacitance value at 28 V. The 16.0 capacitance ratio is critical for wide-range tuning applications. Verify that the SOD-323 package dimensions fit the PCB layout constraints and that the -55°C to 125°C operating range meets the environmental requirements of the final assembly.

Part Context

The BB131 belongs to NXP's portfolio of discrete semiconductor devices, specifically categorized under variable capacitance diodes. It serves as a fundamental passive-active hybrid component in radio frequency engineering, enabling electronic tuning without mechanical parts. The part is distinct from power transistors or integrated circuits, focusing solely on junction capacitance modulation.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Engineers must consult NXP's official cross-reference guides or datasheets for equivalent components with matching SOD-323 packages, 30 V ratings, and similar capacitance ratios.