BB208-03,115

Overview

The BB208-03,115 is a low voltage variable capacitance diode manufactured by NXP Semiconductors. It utilizes planar technology and is housed in an SOD323 (SC-76) ultra-small surface-mount plastic package. The device features a continuous reverse voltage rating of 10 V and a maximum operating junction temperature of +125 °C. At a reverse voltage of 1 V, the typical diode capacitance is 19.9 pF, decreasing to approximately 4.9 pF at 7.5 V. The component exhibits a very low series resistance of 0.35 Ω at 100 MHz with 3 V reverse bias. It offers excellent CV linearity and a high capacitance ratio, making it suitable for precision tuning applications.

Feature Summary

• Ultra-small SMD plastic package construction
• Very low series resistance characteristics
• Excellent CV linearity performance
• High capacitance ratio capability

Applications

• Voltage Controlled Oscillators (VCO)
• Voltage Controlled Crystal Oscillators (VCXO)
• Temperature Controlled Crystal Oscillators (TCXO)

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current catalog to confirm packaging details and availability status. Confirm that the SOD323 package variant matches the design requirements. Check for any recent product change notices or lifecycle updates directly from NXP Semiconductors before finalizing procurement plans.

Selection Notes

Select this component when a compact surface-mount varactor diode with low series resistance is required. Ensure the circuit operates within the specified 10 V reverse voltage limit. Verify that the SOD323 footprint aligns with the PCB layout constraints. Consider the thermal management capabilities given the +125 °C junction temperature rating.

Part Context

The BB208-03 belongs to the BB208 family of low voltage variable capacitance diodes produced by NXP Semiconductors. This family includes the BB208-02, which shares similar electrical characteristics but utilizes the SOD523 package. Both variants are designed for RF tuning applications requiring small form factors and precise capacitance control.

Replacement Considerations

Direct substitutes include the BB208-02 if the SOD523 package is acceptable. Other low-voltage varactors from NXP such as the BB142 or BB156 may serve as alternatives, though package dimensions and specific capacitance values differ. Verify pinout compatibility and electrical specifications before substitution.

FAQ

What is the marking code for the BB208-03?

The marking code for the BB208-03 is A2.

What is the package type for the BB208-03?

The BB208-03 is packaged in an SOD323 (SC-76) plastic surface-mounted package with two leads.

What is the typical diode capacitance at 1 V reverse voltage?

The typical diode capacitance at 1 V reverse voltage is 19.9 pF.