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NXP Semiconductors BB182,115
- Part No.:
- BB182,115
- Manufacturer:
- NXP Semiconductors
- Package:
- SC-79, SOD-523
- Datasheet:
-
BB182,115.pdf
- Description:
- DIODE VHF VAR CAP 32V SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:9,286
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Product details
Overview
BB182,115 from NXP Semiconductors is a planar variable capacitance diode (varactor) in an ultra-small SOD523 (SC-79) surface-mount package, designed for VHF tuning applications up to 160 MHz. It delivers Cd(1V) = 52–62 pF, Cd(28V) = 2.48–2.89 pF, Cd(1V)/Cd(28V) ratio of 20.6–22, series resistance rs = 1.0–1.2 Ω at 100 MHz, and capacitance matching ≤2 % via Direct Matching Assembly (DMA).
For engineers reviewing the BB182,115 datasheet, BB182,115 pinout, BB182,115 application, or BB182,115 equivalent, this varactor is selected for high-linearity voltage-controlled oscillators and VHF TV tuner front-ends where tight capacitance tracking, low series resistance, and ultra-compact footprint are critical.
Technical Context
The BB182,115 operates as a reverse-biased junction capacitor whose depletion width-and thus capacitance-varies nonlinearly with applied DC voltage. Its planar silicon structure enables precise doping control, supporting stable capacitance vs. temperature behavior (see Figure 3) and low leakage (IR ≤ 10 nA at VR = 30 V, 25 °C).
Designed for VHF band A (up to 160 MHz), it achieves high tuning linearity through optimized doping profile and gliding matching across production lots. The DMA process ensures matched pairs or sequences of up to 10 diodes with ≤2 % ∆Cd/Cd deviation over 1–28 V, enabling balanced VCO core designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Cd(1V) | 52–62 pF - sets minimum VCO tuning range and tank impedance at low bias |
| Cd(28V) | 2.48–2.89 pF - defines maximum oscillation frequency and high-voltage tuning endpoint |
| Cd(1V)/Cd(28V) | 20.6–22 - determines total frequency tuning ratio in LC resonators |
| rs | 1.0–1.2 Ω @ 100 MHz, Cd = 30 pF - limits Q-factor degradation and phase noise in oscillator tanks |
| VR(max) | 32 V (DC), 35 V (peak w/ 10 kΩ series resistor) - sets safe reverse bias operating ceiling |
| ∆Cd/Cd matching | ≤2 % over 1–28 V in 10-diode sequence - enables matched dual-varactor VCO topologies |
| Tj(max) | +125 °C - supports operation in thermally constrained tuner modules and set-top box RF sections |
Pinout & Package
BB182,115 is housed in a SOD523 (SC-79) plastic surface-mount package: 1.25 × 0.85 × 0.65 mm body size, 0.5 mm lead pitch, cathode marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to negative supply or ground reference in reverse-biased tuning circuits; marking bar identifies this terminal |
| 2 | Anode | Connected to tuning voltage source; forms the controlled capacitive node with cathode |
Key Features
| Feature | Design Value |
|---|---|
| High linearity | Capacitance vs. voltage curve optimized for reduced harmonic distortion in VCO tuning voltage-to-frequency transfer |
| 2 % DMA matching | Guaranteed capacitance tracking across paired diodes without post-assembly sorting, reducing calibration overhead |
| Ultra-small SOD523 package | Enables dense RF layout in space-constrained TV tuner modules and portable VHF receivers |
| Low rs (1.0–1.2 Ω) | Maintains tank circuit Q > 100 at 100 MHz, directly limiting close-in phase noise in local oscillator designs |
Applications
| VHF Television Tuner (Band A) | Voltage-Controlled Oscillator (VCO) |
|---|---|
Use Scenario: Front-end channel selection in analog/digital terrestrial TV receivers operating up to 160 MHz. IC Role / Device Role / Timing Role: Varactor diode forming the voltage-variable element in LC resonant tank circuits for RF bandpass filtering and local oscillator generation. Use Value: Tight Cd matching (≤2 %) ensures consistent channel alignment across production units; low rs preserves signal-to-noise ratio in weak-signal reception. | Use Scenario: Frequency-tuning element in monolithic or hybrid VCOs for wireless microphones, FM transmitters, and ISM-band radios. IC Role / Device Role / Timing Role: Reverse-biased junction capacitor whose voltage-dependent capacitance controls oscillation frequency in Colpitts or Clapp topologies. Use Value: Cd(1V)/Cd(28V) ratio ≥20.6 enables >4:1 frequency tuning range; planar structure ensures stable temperature coefficient below ±100 ppm/K. |
| FM Radio Tuning Module | RF Test Equipment Local Oscillator |
Use Scenario: Compact tuning core in portable FM radio IC modules covering 76–108 MHz. IC Role / Device Role / Timing Role: Primary varactor in integrated tuning network, biased via DAC or potentiometer to select station frequency. Use Value: SOD523 footprint allows direct placement adjacent to inductor; Cd(25V)/Cd(28V) = 1.05 confirms minimal capacitance change near max bias, easing loop filter design. | Use Scenario: Precision frequency synthesis stage in benchtop signal generators and spectrum analyzers requiring low phase noise. IC Role / Device Role / Timing Role: Matched varactor pair in differential VCO architecture to suppress even-order harmonics and supply noise. Use Value: Gliding DMA matching enables <0.5° phase error between complementary tank branches; low IR (<10 nA) prevents bias drift during long-term calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar varactor diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BB204,115 | Cd(1V) = 25–30 pF; Cd(28V) = 1.2–1.4 pF; Cd(1V)/Cd(28V) ≈ 21; rs = 1.3–1.5 Ω | Lower capacitance range suits UHF (470–862 MHz) tuners; less suitable for Band A VHF | Select BB204,115 only when targeting higher-frequency bands and accepting higher series resistance |
| SMV1232-011 | Cd(1V) = 56–66 pF; Cd(28V) = 2.6–3.0 pF; Cd(1V)/Cd(28V) = 20–22; rs = 0.9–1.1 Ω; SOD-323 package (1.7 × 1.3 mm) | Larger footprint; identical tuning ratio but marginally lower rs; RoHS-compliant revision | Choose SMV1232-011 if board layout accommodates larger SOD-323 and requires latest RoHS compliance |
Compared with BB182,115, BB204,115 offers higher-frequency suitability at the cost of reduced low-end capacitance, while SMV1232-011 provides nearly identical electrical performance in a larger, RoHS-compliant package-neither is pin-compatible due to differing SOD523/SOD-323 footprints.
Availability
BB182,115 is available at Aetrix Electronics and suitable for VHF television tuners, voltage-controlled oscillators, FM radio modules, and RF test equipment requiring stable component supply and tight capacitance matching.
Supply support for BB182,115 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer applications.
The BB182,115 belongs to NXP's legacy RF varactor diode product line, engineered specifically for high-reliability VHF tuning in broadcast receiver systems where compact size, matching accuracy, and thermal stability are essential.
FAQ
What is the maximum reverse voltage rating for BB182,115?
The BB182,115 has an absolute maximum reverse voltage (VR) rating of 32 V DC and 35 V peak when used in series with a 10 kΩ resistor. Exceeding these values risks permanent junction damage per IEC 60134 limiting values. Operation above 28 V is not recommended for reliable capacitance control, as Cd variation becomes minimal beyond that point in the BB182,115's characteristic curve.
How is capacitance matching achieved in BB182,115?
BB182,115 achieves ≤2 % capacitance matching (∆Cd/Cd) across 1–28 V using a Direct Matching Assembly (DMA) procedure combined with gliding matching across production sequences of up to 10 diodes. This is verified per Table 5 in the official NXP datasheet and does not require external binning or calibration-matching is built into the assembly process for the BB182,115.
What package type does BB182,115 use and how is polarity identified?
BB182,115 uses the SOD523 (SC-79) plastic surface-mount package measuring 1.25 × 0.85 × 0.65 mm. Polarity is identified by a marking bar on the top surface, which denotes Pin 1 (cathode); Pin 2 (anode) is unmarked and located opposite the bar. This matches the simplified outline in Figure 4 of the NXP BB182,115 datasheet.
Does BB182,115 support operation at elevated temperatures?
Yes, BB182,115 is rated for junction temperatures up to +125 °C and storage temperatures from −55 °C to +150 °C. Its temperature coefficient of capacitance (TCd) remains stable across 0–85 °C (see Figure 3), making it suitable for enclosed tuner modules and industrial-grade RF assemblies where thermal management is limited.
What is the typical series resistance of BB182,115 and why does it matter?
The BB182,115 exhibits a typical series resistance (rs) of 1.0–1.2 Ω measured at 100 MHz with Cd = 30 pF. This low rs value directly sustains high Q-factor in LC tank circuits-critical for minimizing phase noise in VCOs and preserving selectivity in VHF tuner filters. Higher rs would degrade oscillator spectral purity and reduce tuning sensitivity.
BB182,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Capacitance @ Vr, F:
- 2.89pF @ 28V, 1MHz
- Capacitance Ratio:
- 22.0
- 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
- Supplier Device Package:
- SOD-523
BB182,115 FAQ
1.How can I place an order for BB182,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BB182,115 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BB182,115 reliable?
The price and inventory of BB182,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BB182,115 is usually 5 days.
3.What payment methods are accepted for BB182,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BB182,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BB182,115?
BB182,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BB182,115 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BB182,115?
For technical support, including BB182,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BB182,115 requirements.
6.How does Aetrix verify that BB182,115 is sourced from the original manufacturer or authorized distributors?
All BB182,115 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BB182,115 meets industry standards.
7.What is the process for return or replacement of BB182,115?
All BB182,115 units undergo pre-shipment inspection (PSI). If there is an issue with BB182,115, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BB182,115 part is unused and in its original packaging.
Return procedure for BB182,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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