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Product Detailed Parameters
- Description：DIODE RF LV VARI CAP SOD-523
- Series：-
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Capacitance @ Vr, F：6.8pF @ 4V, 1MHz
- Capacitance Ratio：4.3
- Capacitance Ratio Condition：C1/C4
- Voltage - Peak Reverse (Max)：20 V
- Diode Type：Single
- Q @ Vr, F：-
- Operating Temperature：-65°C ~ 150°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 BB198,115 is a variable capacitance diode manufactured by NXP Semiconductors. It is designed for voltage-controlled oscillator (VCO) and voltage-controlled crystal oscillator (VCXO) applications. The component features a small plastic surface-mount device (SMD) package, specifically SC-79-2. Key electrical parameters include a reverse voltage of 30 V and a capacitance of 8 pF. The tuning ratio is specified at a minimum of 12 under test conditions of 0.5 V to 28 V. The device operates within a temperature range of -55°C to +150°C and is configured as a single unit.
Feature Summary
- Designed for VCO and VCXO frequency tuning applications
- Small plastic SMD package for compact board layouts
- High operating temperature capability up to 150°C
Applications
- Voltage-controlled oscillators
- Voltage-controlled crystal oscillators
- RF tuning circuits
Procurement Notes
Verify the current lifecycle status before integration, as this part number may be discontinued or subject to limited availability. Confirm that the SC-79-2 package dimensions match the target PCB footprint. Ensure the 30 V reverse voltage rating meets the circuit requirements. Check RoHS compliance documentation for specific regulatory needs. Validate supplier authenticity through authorized distribution channels.
Selection Notes
Select this component when a small SMD varactor with high thermal stability is required. The 8 pF capacitance and 12 tuning ratio suit moderate bandwidth tuning needs. Consider the -55°C to +150°C range for harsh environments. Verify that the single-diode configuration aligns with the circuit topology. Compare against other NXP varactors if higher capacitance or different packaging is needed.
Part Context
The BB198 belongs to NXP's family of variable capacitance diodes intended for RF and microwave applications. These components are commonly used in communication systems requiring precise frequency control. The BB198,115 variant specifies the standard reel packaging format. This series supports designs needing reliable performance in oscillators and tunable filters.
Replacement Considerations
Check for direct substitutes within the NXP BB1xx series. Verify pinout compatibility and package similarity for SC-79-2 replacements. Evaluate equivalent varactors from other manufacturers based on capacitance and voltage ratings.
