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Infineon Technologies BB814E6327GR2
- Part No.:
- BB814E6327GR2
- Manufacturer:
- Infineon Technologies
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BB814E6327GR2.pdf
- Description:
- VARIABLE CAPACITANCE DIODE
- Quantity:
- Payment:
- Shipping:
Inventory:9,194
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Product details
Overview
BB814E6327GR2 from Infineon Technologies is a silicon hyperabrupt junction varactor diode in SOT23 package with common-cathode dual-diode configuration, designed for FM radio tuner VCOs requiring precise capacitance tracking. It delivers 43–46.5 pF capacitance at 2 V, 19.1–22.7 pF at 8 V, 2.05–2.25 capacitance ratio, <0.18 Ω series resistance at 100 MHz, and operates from –55 °C to +125 °C.
For engineers reviewing the BB814E6327GR2 datasheet, BB814E6327GR2 pinout, BB814E6327GR2 application, or BB814E6327GR2 equivalent, key selection criteria include tuning ratio stability across temperature, matched dual-diode capacitance tolerance (≤3%), low RF series resistance, and RoHS-compliant SOT23 packaging for automotive FM front-end designs.
Technical Context
The BB814E6327GR2 implements a monolithic common-cathode dual varactor structure enabling identical voltage-dependent capacitance response across both diodes-critical for balanced LC tank tuning in stereo FM receivers. Its hyperabrupt doping profile ensures near-linear frequency vs. voltage (f ∝ √C⁻¹) behavior over 87–108 MHz bands.
Capacitance is specified at 1 MHz (DC-biased), with Q ≥ 200 at 100 MHz and 2 V reverse bias, supporting high-efficiency VCO operation. The device is rated for 18 V DC reverse voltage and 20 V peak, with IR ≤ 200 nA at 16 V/60 °C-ensuring low leakage-induced drift in battery-powered car radios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance @ 2 V | 43–46.5 pF - sets VCO center frequency and tuning range lower bound in FM band |
| Capacitance @ 8 V | 19.1–22.7 pF - defines upper frequency limit and tuning linearity |
| Capacitance Ratio C₂ᵥ/C₈ᵥ | 2.05–2.25 - determines usable FM channel spacing and station separation margin |
| Series Resistance @ 100 MHz | Typ. 0.18 Ω - minimizes VCO phase noise and insertion loss in resonant tank |
| Reverse Leakage @ 16 V/60 °C | Max. 200 nA - ensures stable bias point and long-term frequency drift <±100 ppm |
| Operating Temp Range | –55 °C to +125 °C - supports under-hood automotive deployment without derating |
| Package | SOT23 - surface-mount compatible with high-density PCB layouts and reflow assembly |
Pinout & Package
SOT23-3 package with standard pin assignment: Pin 1 = Anode 1, Pin 2 = Cathode (common), Pin 3 = Anode 2. Monolithic dual-diode construction ensures intrinsic capacitance matching and thermal tracking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Independent tuning node for first LC section; requires external DC blocking capacitor |
| Pin 2 | Common Cathode | Shared RF ground reference; must be low-inductance connection to system ground plane |
| Pin 3 | Anode of Diode 2 | Second independent tuning node; enables differential or push-pull VCO architectures |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic common-cathode dual diode | Guarantees ≤3% inter-diode capacitance mismatch across voltage and temperature |
| Hyperabrupt junction profile | Delivers linearized f–V characteristic essential for ±75 kHz deviation compliance in FM broadcast |
| Pb-free RoHS-compliant SOT23 | Enables lead-free reflow processing without performance degradation or reliability risk |
| Coded capacitance groups (1, 2) | Allows binning for tight C₂ᵥ/C₈ᵥ ratio control in production-tuned receiver modules |
Applications
| FM Radio Tuner Front-End | Automotive Infotainment System |
|---|---|
Use Scenario: Dual-varactor VCO in analog FM tuner IC for 87.5–108 MHz reception. IC Role / Device Role / Timing Role: Voltage-controlled capacitance element setting resonant frequency of LC tank with stereo channel separation. Use Value: Matched C₂ᵥ/C₈ᵥ ratio ensures consistent channel spacing across production units and temperature cycling. | Use Scenario: Tuning element in AM/FM diversity antenna module mounted near vehicle roofline. IC Role / Device Role / Timing Role: Dual-anode configuration enables independent local oscillator trimming for main and diversity paths. Use Value: Common cathode minimizes ground loop inductance, reducing mutual coupling and image rejection degradation. |
| Portable DAB+ Receiver | Two-Band (FM+AM) Radio Module |
Use Scenario: Fine-tuning capacitor in DAB+ band-switched VCO covering Band III (174–240 MHz). IC Role / Device Role / Timing Role: Secondary varactor augmenting primary tuning range while maintaining Q > 150 at 200 MHz. Use Value: Low rS (0.18 Ω typ.) preserves VCO phase noise floor below –110 dBc/Hz @ 10 kHz offset. | Use Scenario: Shared tuning diode in dual-band radio IC supporting simultaneous FM/AM synthesis. IC Role / Device Role / Timing Role: Common-cathode architecture allows single bias network for both bands' LC tanks. Use Value: Reduced component count and board area versus discrete dual-SOT23 solution; ≤3% group matching eliminates calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar varactor diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAT112,115 | Single diode, SOT23, C₂ᵥ = 42–45 pF, C₈ᵥ = 18.5–21 pF, rS = 0.22 Ω | Lacks dual-diode tracking; requires external matching for stereo tuning | Select when only one tuning node is needed or when cost-per-diode is prioritized over matching. |
| BBY52-02W | Dual diode, SOT323, C₂ᵥ = 40–44 pF, C₈ᵥ = 17–20 pF, rS = 0.25 Ω, Tj max = 150 °C | Smaller footprint but higher series resistance; less suitable for low-phase-noise VCOs | Choose for space-constrained designs where thermal margin >125 °C is required and Q ≥ 180 is acceptable. |
Compared with BAT112,115 and BBY52-02W, the BB814E6327GR2 uniquely provides factory-matched dual capacitance curves in a thermally coupled monolithic die-enabling zero-calibration FM stereo tuners with guaranteed ≤3% inter-channel drift over automotive temperature cycles.
Availability
BB814E6327GR2 is available at Aetrix Electronics and suitable for FM radio tuners, automotive infotainment systems, and portable DAB+ receivers requiring stable component supply with full traceability and no obsolescence risk.
Supply support for BB814E6327GR2 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
Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, RF, and automotive ICs, with global manufacturing and quality certification to IATF 16949.
The BB814 belongs to Infineon's RF Varactor Diode product line, engineered specifically for high-reliability, temperature-stable frequency tuning in broadcast radio front-ends and automotive-grade communication modules.
FAQ
What is the maximum reverse voltage rating for BB814E6327GR2?
The absolute maximum DC reverse voltage is 18 V, with a peak reverse voltage rating of 20 V. Operation above 18 V DC risks irreversible junction breakdown. Derating is not required up to 125 °C ambient, as IR remains ≤200 nA even at 16 V and 60 °C per datasheet specifications.
Does BB814E6327GR2 support differential tuning configurations?
Yes-its monolithic common-cathode dual-anode structure enables true differential tuning: Pins 1 and 3 serve as independent anodes referenced to shared Pin 2 (cathode), allowing push-pull VCO topologies that cancel even-order harmonics and improve spectral purity in FM synthesizers.
How is capacitance matching verified between the two diodes?
Capacitance matching is measured at both 2 V and 8 V reverse bias with 1 MHz AC signal, calculating ΔCT/CT as the normalized difference between diodes. Per datasheet, this is guaranteed ≤3% across all operating conditions, validated during wafer sort using automated RF probe stations calibrated to NIST-traceable standards.
Can BB814E6327GR2 be used in 5G sub-6 GHz front-end modules?
No-it is optimized for HF/VHF tuning (up to ~250 MHz) with Q ≥ 200 at 100 MHz. At 3.5 GHz, its Q drops below 30 due to series resistance and package parasitics; dedicated GaAs or SiGe varactors with fₜ > 10 GHz are required for 5G FR1 applications.
BB814E6327GR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Active
- Capacitance @ Vr, F:
- 22.7pF @ 8V, 1MHz
- Capacitance Ratio:
- 2.25
- Capacitance Ratio Condition:
- C2/C8
- Voltage - Peak Reverse (Max):
- 18 V
- Diode Type:
- 1 Pair Common Cathode
- Q @ Vr, F:
- 200 @ 2V, 100MHz
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT23-3-1
BB814E6327GR2 FAQ
1.How can I place an order for BB814E6327GR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for BB814E6327GR2 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 BB814E6327GR2 reliable?
The price and inventory of BB814E6327GR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BB814E6327GR2 is usually 5 days.
3.What payment methods are accepted for BB814E6327GR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BB814E6327GR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BB814E6327GR2?
BB814E6327GR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BB814E6327GR2 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 BB814E6327GR2?
For technical support, including BB814E6327GR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BB814E6327GR2 requirements.
6.How does Aetrix verify that BB814E6327GR2 is sourced from the original manufacturer or authorized distributors?
All BB814E6327GR2 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 BB814E6327GR2 meets industry standards.
7.What is the process for return or replacement of BB814E6327GR2?
All BB814E6327GR2 units undergo pre-shipment inspection (PSI). If there is an issue with BB814E6327GR2, 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 BB814E6327GR2 part is unused and in its original packaging.
Return procedure for BB814E6327GR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BB814E6327GR2 Tags
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