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NXP Semiconductors BB182,335
- Part No.:
- BB182,335
- Manufacturer:
- NXP Semiconductors
- Package:
- SC-79, SOD-523
- Datasheet:
-
BB182,335.pdf
- Description:
- DIODE VHF VAR CAP 32V SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:2,432
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Product details
Overview
BB182,335 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 BB182,335 datasheet, BB182,335 pinout, BB182,335 application, or BB182,335 equivalent, key selection criteria include reverse voltage rating (32 V), junction temperature range (−55 °C to +125 °C), low leakage (≤10 nA at VR = 30 V), and tight capacitance matching for VCO and tuner front-end designs.
Technical Context
The BB182,335 operates as a voltage-controlled capacitor where reverse bias modulates junction depletion width, directly altering capacitance. Its planar silicon structure enables stable C–V characteristics with minimal hysteresis and temperature drift-evidenced by TCd curves across 0–85 °C and Cd(25V)/Cd(28V) ratio ≥1.05.
Designed for high-linearity tuning, it achieves 2 % matching over 10-diode sequences using gliding matching and DMA assembly. The 2-pin SOD523 package supports high-density RF layouts, with cathode marked by a bar and anode unmarked per IEC-standard pinning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Cd(1V) | 52–62 pF: usable capacitance at low tuning voltage, enabling wide frequency sweep in VHF band A tuners |
| Cd(28V) | 2.48–2.89 pF: minimum capacitance at high reverse bias, defining upper frequency limit (~160 MHz) |
| Cd(1V)/Cd(28V) | 20.6–22: high tuning ratio ensures >2-decade frequency coverage without switching banks |
| rs | 1.0–1.2 Ω at 100 MHz: low series resistance minimizes Q degradation and phase noise in VCO resonators |
| VR (max) | 32 V: absolute maximum reverse voltage defines safe operating range for tuner supply rails |
| IR (max) | 10 nA at VR = 30 V, 25 °C: ultra-low leakage preserves tuning stability and reduces DC power loss |
| Matching | ≤2 % over 10-diode sequence: DMA-enabled matching supports dual-tuner or I/Q VCO architectures |
Pinout & Package
Package: SOD523 (SC-79), ultra-small plastic surface-mount package with 2 leads, 1.25 × 0.85 mm footprint, 0.5 mm height, cathode indicated by marking bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to reverse-bias control line; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode | Typically grounded or AC-coupled in VCO tank circuits; forms low-impedance return path for tuning current |
Key Features
| Feature | Design Value |
|---|---|
| High linearity | Cd(1V)/Cd(2V) = 1.31 typ ensures monotonic, predictable frequency vs. voltage response in analog tuning loops |
| Direct Matching Assembly (DMA) | ≤2 % capacitance matching across 10-device sequences enables precise dual-VCO or image-reject tuner calibration |
| Ultra-small SMD package | SOD523 footprint (1.25 × 0.85 mm) allows placement adjacent to RF inductors without parasitic coupling |
| Low series resistance | rs = 1.0–1.2 Ω maintains Q >100 in 50 Ω VCO tanks at 100 MHz, reducing phase noise floor |
Applications
| VHF Television Tuner (Band A) | Voltage-Controlled Oscillator (VCO) |
|---|---|
Use Scenario: Tuning front-end RF filters and local oscillator stages in analog/digital terrestrial TV receivers operating up to 160 MHz. IC Role / Device Role / Timing Role: Voltage-variable capacitor forming part of LC resonator with fixed inductor; bias voltage adjusts center frequency. Use Value: Cd(1V)/Cd(28V) = 22 enables full Band A coverage (47–160 MHz) with single varactor, eliminating band-switching complexity. | Use Scenario: Frequency tuning element in monolithic or hybrid VCOs for wireless transceivers and PLL-based synthesizers. IC Role / Device Role / Timing Role: Junction capacitance modulates resonant frequency of LC tank; reverse bias sets output frequency. Use Value: Low rs (1.0–1.2 Ω) and high linearity preserve VCO phase noise performance and tuning gain stability. |
| FM Radio Tuner | RF Front-End Calibration |
Use Scenario: Channel selection in FM broadcast receivers (87.5–108 MHz), where compact size and thermal stability are critical. IC Role / Device Role / Timing Role: Varactor in parallel-resonant IF/RF filter; bias voltage selects station frequency. Use Value: TCd < 100 ppm/K across 0–85 °C ensures minimal frequency drift during ambient temperature changes. | Use Scenario: Factory calibration of RF gain blocks or mixer LO paths requiring matched capacitance pairs. IC Role / Device Role / Timing Role: Paired DMA-matched BB182,335 units used to balance differential VCO cores or image-reject mixers. Use Value: ≤2 % matching tolerance enables sub-0.5 dB amplitude/phase imbalance correction without trimming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar varactor diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BB204,315 | Cd(1V) = 25–30 pF; Cd(1V)/Cd(28V) = 12; higher rs = 1.5 Ω | Narrower tuning range; suited for UHF (>300 MHz) rather than VHF Band A | Select when targeting higher-frequency bands with relaxed matching requirements |
| SMV1232-011 | Cd(1V) = 45–55 pF; Cd(1V)/Cd|28V| = 18; SOD-323 package (1.7 × 1.3 mm) | Larger footprint; lower matching spec (±5 %); no DMA process | Choose for cost-sensitive designs where 2 % matching is not required and board space permits larger package |
Compared with BB204,315 and SMV1232-011, the BB182,335 uniquely combines VHF-optimized capacitance range, 22:1 tuning ratio, and DMA-enabled 2 % matching-making it the only option qualified for high-precision analog TV tuner and dual-VCO calibration where traceable capacitance correlation is mandatory.
Availability
BB182,335 is available at Aetrix Electronics and suitable for VHF television tuners, voltage-controlled oscillators, and RF front-end calibration systems requiring stable component supply, consistent parametric performance, and traceable manufacturing batch data.
Supply support for BB182,335 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 BB182,335 belongs to NXP's RF varactor diode product line, engineered specifically for high-linearity, matched-capacitance tuning in analog VHF receiver front-ends and precision oscillator circuits.
FAQ
What is the maximum reverse voltage rating for BB182,335?
The BB182,335 has an absolute maximum reverse voltage (VR) rating of 32 V under standard conditions, with a peak value of 35 V when used in series with a 10 kΩ resistor. Exceeding these limits risks permanent junction damage. This rating supports typical VHF tuner supply rails and ensures robust operation in analog TV and FM radio applications where tuning voltages remain below 30 V.
How does the Cd(1V)/Cd(28V) ratio of BB182,335 impact VHF tuning range?
The BB182,335 exhibits a Cd(1V)/Cd(28V) ratio of 20.6–22, which directly determines its usable frequency tuning range in LC resonators. With a fixed inductor, this ratio enables coverage across Band A (47–160 MHz) using a single varactor-eliminating need for switched capacitor banks. This simplifies tuner design and improves reliability in terrestrial TV receivers.
What does "Direct Matching Assembly (DMA)" mean for BB182,335?
Direct Matching Assembly (DMA) is NXP's proprietary process that achieves ≤2 % capacitance matching across sequences of 10 BB182,335 diodes. It combines gliding matching and precision binning to ensure correlated C–V curves. This capability is essential for differential VCOs, image-reject tuners, and factory calibration where paired varactors must track identically under identical bias.
Is BB182,335 suitable for use in FM radio receivers?
Yes, the BB182,335 is suitable for FM radio receivers operating in the 87.5–108 MHz band. Its Cd(1V) = 52–62 pF and Cd(28V) = 2.48–2.89 pF provide optimal resonance with standard FM IF/RF inductors. Temperature coefficient data (TCd curves) confirm stable performance across −55 °C to +125 °C, supporting reliable channel selection in consumer-grade radios exposed to ambient temperature variation.
What is the series resistance (rs) specification for BB182,335 and why does it matter?
The BB182,335 has a series resistance (rs) of 1.0–1.2 Ω measured at 100 MHz with Cd = 30 pF. This low rs value minimizes resistive losses in resonant tank circuits, preserving Q-factor and reducing phase noise in VCOs. In practical terms, it enables VCOs built with BB182,335 to achieve better close-in phase noise performance compared to varactors with rs >1.5 Ω, especially at VHF frequencies.
BB182,335 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
BB182,335 FAQ
1.How can I place an order for BB182,335 through Aetrix?
Please submit a Request for Quotation (RFQ) for BB182,335 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 BB182,335 reliable?
The price and inventory of BB182,335 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BB182,335 is usually 5 days.
3.What payment methods are accepted for BB182,335?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BB182,335 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BB182,335?
BB182,335 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BB182,335 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 BB182,335?
For technical support, including BB182,335 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BB182,335 requirements.
6.How does Aetrix verify that BB182,335 is sourced from the original manufacturer or authorized distributors?
All BB182,335 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 BB182,335 meets industry standards.
7.What is the process for return or replacement of BB182,335?
All BB182,335 units undergo pre-shipment inspection (PSI). If there is an issue with BB182,335, 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 BB182,335 part is unused and in its original packaging.
Return procedure for BB182,335:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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