BB170X

Overview

The BB170X is a single-channel varactor diode manufactured by NXP USA Inc., designed for surface-mount applications in the SOD-323 (SC-76) package. It features a maximum 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 2.75 pF at 28 V reverse bias measured at 1 MHz, with a specified capacitance ratio of 15.0 under C1/C28 conditions. This component is part of the BB170 basic product line and is currently classified as obsolete.

Feature Summary

• Single-channel varactor configuration optimized for surface-mount integration
• Capacitance tuning capability defined by specific reverse voltage conditions
• Operational reliability across extended industrial temperature ranges

Applications

• RF circuit tuning elements requiring variable capacitance
• Voltage-controlled oscillator (VCO) frequency adjustment stages
• Phase-locked loop (PLL) filter networks

Procurement Notes

This component is officially listed as obsolete by the manufacturer. Verification of availability should focus on distributor surplus or secondary market sources rather than direct manufacturing supply. Confirm RoHS3 compliance status and check for potential replacement recommendations from Nexperia, which acquired the relevant business unit, before initiating procurement actions.

Selection Notes

Designers must account for the obsolete status when selecting this component for new hardware. Verify that the 30 V peak reverse voltage rating meets the specific circuit requirements. Ensure the SOD-323 package footprint aligns with the PCB layout constraints. Cross-reference the 2.75 pF capacitance value at 28 V to confirm suitability for the target RF application bandwidth.

Part Context

The BB170X belongs to the BB170 family of varactor diodes produced by NXP USA Inc. The 'X' suffix typically denotes specific packaging or tape-and-reel configurations within the distributor cataloging system. The product line has transitioned under Nexperia following corporate restructuring, though the original manufacturer designation remains valid for historical documentation.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult Nexperia official documentation for current equivalent varactor diodes suitable for SOD-323 packages.