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Product Detailed Parameters
- Description：DIODE UHF VAR CAP 32V SOD523
- Series：-
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR)
- Capacitance @ Vr, F：2.25pF @ 28V, 1MHz
- Capacitance Ratio：10
- Capacitance Ratio Condition：C1/C28
- Voltage - Peak Reverse (Max)：32 V
- Diode Type：Single
- Q @ Vr, F：-
- Operating Temperature：-55°C ~ 125°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SC-79, SOD-523
- Supplier Device Package：SOD-523
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Overview
The BB179B,335 is a UHF variable capacitance diode fabricated using planar technology and encapsulated in the SOD523 (SC-79) ultra-small surface-mount plastic package. This component utilizes Direct Matching Assembly (DMA) procedures to achieve excellent matching performance. The specific suffix ',335' denotes a tape reel packing configuration with standard product orientation. As a discontinued product, this device serves historical reference purposes for RF tuning applications requiring compact form factors.
Feature Summary
- Planar technology fabrication
- Ultra-small SMD plastic package
- Direct Matching Assembly procedure
Applications
- UHF frequency tuning circuits
- RF varactor applications
- Compact electronic designs
Procurement Notes
This component is officially marked as No Longer Manufactured by NXP Semiconductors. Specifications are provided for historical reference only. Verify availability through authorized distributors or secondary markets. Confirm that the SOD523 package and DMA matching specifications meet current design requirements before integration.
Selection Notes
Select this part only if the SOD523 footprint and UHF varactor characteristics align with the design. Due to discontinuation, assess long-term supply chain risks. Consider equivalent active components if future production stability is required. Verify pin compatibility and thermal constraints during substitution analysis.
Part Context
The BB179B belongs to NXP's portfolio of UHF variable capacitance diodes. It is designed for high-frequency applications where small size and precise capacitance control are critical. The component represents an older generation of planar varactors optimized for cost-effective mass production in consumer and industrial electronics.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Evaluate active varactor diodes from NXP or other manufacturers offering similar SOD523 packages and UHF performance characteristics.
