BB131,115

Overview

The BB131 is a single VHF variable capacitance diode manufactured by NXP USA Inc., housed in the SOD-323 surface-mount package. It operates with a peak reverse voltage of 30 V and maintains a junction temperature range from -55°C to 125°C. The device exhibits a capacitance of 1.055 pF at 28 V reverse bias measured at 1 MHz, achieving a capacitance ratio of 16.0 under C0.5/C28 conditions. Designed for broadband RF applications, it integrates ESD protection and offers high power gain with excellent thermal stability.

Feature Summary

• High efficiency and excellent ruggedness for reliable operation
• Designed specifically for broadband RF signal processing
• Integrated electrostatic discharge (ESD) protection circuitry

Applications

• CDMA systems
• W-CDMA networks
• GSM EDGE infrastructure
• LTE communication devices
• WiMAX equipment

Procurement Notes

Verify component authenticity through authorized NXP distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific ordering suffixes that may indicate tape-and-reel packaging variations. Ensure the received part matches the SOD-323 footprint and electrical specifications before integration into production lines.

Selection Notes

Select this component when designing VHF frequency tuning circuits requiring stable capacitance variation. Consider the 30 V reverse voltage limit and 16.0 capacitance ratio for impedance matching networks. Evaluate thermal management requirements given the 125°C maximum junction temperature rating for high-power RF environments.

Part Context

This varactor diode belongs to NXP's portfolio of RF discrete components optimized for wireless communication standards. It serves as a critical tuning element in voltage-controlled oscillators and filter banks within mobile base stations and handsets, supporting multiple global cellular technologies simultaneously.

Replacement Considerations

Consult official NXP documentation for qualified substitute part numbers. Verify pin compatibility and electrical parameter equivalence before substituting any alternative varactor diodes in existing designs.

FAQ

What is the maximum operating junction temperature?

The maximum operating junction temperature is 125°C.

Does the BB131 include built-in protection features?

Yes, the device includes integrated electrostatic discharge (ESD) protection.

What is the capacitance value at 28V reverse bias?

The capacitance is 1.055 pF at 28 V reverse bias measured at 1 MHz.