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Infineon Technologies BB 664 E7902
- Part No.:
- BB 664 E7902
- Manufacturer:
- Infineon Technologies
- Package:
- SC-80
- Datasheet:
-
BB 664 E7902.pdf
- Description:
- DIODE VAR CAP 30V 20MA SCD-80
- Quantity:
- Payment:
- Shipping:
Inventory:4,792
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Product details
Overview
BB664 E7902 from Infineon Technologies is a silicon hyperabrupt junction varactor diode in SC79 package, designed for VHF TV tuner tuning circuits. It delivers 34.2 pF typical capacitance at 2 V, 2.75 pF at 28 V, 16.4:1 capacitance ratio (1 V/28 V), and 0.6 Ω typical series resistance at 470 MHz - enabling precise, low-loss frequency synthesis in analog broadcast receivers.
For engineers reviewing the BB664 E7902 datasheet, BB664 E7902 pinout, BB664 E7902 application, or BB664 E7902 equivalent, this page provides verified electrical specs, SC79 terminal mapping, VHF tuner design context, capacitance-voltage curve behavior, and RoHS-compliant AEC-Q101-qualified alternatives for automotive-grade RF front-end reuse.
Technical Context
This varactor operates as a voltage-controlled capacitor with hyperabrupt doping profile, delivering near-linear 1/C² tuning characteristic essential for stable VHF oscillator linearity. Its 0.6 nH series inductance and 0.6 Ω rS at 470 MHz minimize Q degradation in resonant tank circuits.
The device is qualified to AEC-Q101 for automotive tuner modules and features ±2% capacitance matching across 7-diode sequences via in-line assembly - critical for multi-channel filter alignment and image rejection in dual-conversion architectures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance @ 2 V | 29.4–34.2 pF typical; sets center frequency of VHF bandpass filters in tuner input stages |
| Capacitance @ 28 V | 2.4–2.75 pF typical; defines maximum oscillation frequency range in LC VCOs |
| Capacitance Ratio (1 V / 28 V) | 15–17.8:1; enables ≥100 MHz tuning bandwidth in 174–230 MHz VHF TV bands |
| Series Resistance @ 470 MHz | 0.6–0.75 Ω typical; maintains Q > 100 at 200 MHz for low-phase-noise local oscillator design |
| Reverse Voltage Rating | 30 V DC, 35 V peak; supports standard 24 V tuner bias rails with 15% margin |
| Operating Temperature | −55 °C to +150 °C; validated for under-hood automotive tuner modules per AEC-Q101 |
| Capacitance Matching | ≤2% deviation across 7-diode sequence; ensures consistent channel-to-channel tracking in multi-tuner systems |
Pinout & Package
SC79 package: 2-terminal surface-mount diode with cathode marked by laser dot on top surface; anode and cathode terminals defined by physical orientation per Infineon outline drawing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | AC-grounded node in reverse-biased varactor configuration | Connected to RF ground plane in VCO tank circuit; requires low-inductance layout |
| Cathode | DC tuning voltage input node | Bias voltage applied here controls depletion width; must be filtered from RF feedthrough |
Key Features
| Feature | Design Value |
|---|---|
| Hyperabrupt junction profile | Enables linearized frequency vs. tuning voltage response in VHF oscillator designs |
| In-line capacitance matching | Guarantees ≤2% CT deviation across 7-device batches for multi-tuner synchronization |
| AEC-Q101 qualification | Validated for automotive tuner modules operating at −40 °C to +125 °C ambient |
| Pb-free RoHS-compliant construction | Meets EU Directive 2011/65/EU; compatible with lead-free reflow profiles (peak 260 °C) |
Applications
| Automotive VHF TV Tuner Module | Legacy Broadcast Receiver Front-End |
|---|---|
Use Scenario: Analog terrestrial TV reception in vehicle infotainment head units operating in 174–230 MHz band. IC Role / Device Role / Timing Role: Voltage-controlled tuning element in LC VCO and input bandpass filter. Use Value: 16.4:1 C-ratio and 0.6 Ω rS enable 110 MHz tuning span with <0.5 dB insertion loss at 200 MHz. | Use Scenario: Fixed-installation analog TV receivers requiring stable channel selection without digital PLL. IC Role / Device Role / Timing Role: Primary capacitance control in high-Q resonant tank for local oscillator generation. Use Value: −55 °C to +150 °C operation ensures reliability in unventilated rooftop enclosures exposed to solar loading. |
| Multi-Channel RF Filter Bank | VHF Signal Generator Calibration |
Use Scenario: Channel-selective filtering in broadcast monitoring equipment with simultaneous 4-channel reception. IC Role / Device Role / Timing Role: Matched varactor array for synchronized tuning of parallel bandpass sections. Use Value: ≤2% inter-device capacitance matching ensures <0.3 dB passband ripple across all channels at 210 MHz. | Use Scenario: Lab-grade VHF signal source requiring repeatable frequency step accuracy. IC Role / Device Role / Timing Role: Precision tuning element in calibrated YIG-less oscillator core. Use Value: 10⁻⁴/°C temperature coefficient of capacitance minimizes drift during 8-hour calibration runs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar varactor diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BB664-02V | Same die, SCD80 package (1.7 × 0.8 mm); 0.6 nH LS vs. SC79's 0.6 nH | Higher thermal mass; suited for reflow-sensitive PCBs with large copper pours | Select for improved thermal stability in high-power VCO layouts |
| BB644 | Lower C-ratio (12.6:1 typ.), higher rS (0.85 Ω), same SC79 package | Narrower VHF tuning range; used where cost priority exceeds bandwidth need | Choose when 80 MHz tuning span suffices and BOM consolidation is required |
Compared with BB664-02V, BB664 E7902 offers identical RF performance in smaller SC79 footprint; versus BB644, it delivers +30% tuning bandwidth and −25% series resistance - directly improving VCO phase noise and channel agility in broadcast tuners.
Availability
BB664 E7902 is available at Aetrix Electronics and suitable for automotive infotainment systems, broadcast receiver manufacturing, and RF test equipment requiring stable component supply with AEC-Q101 validation and RoHS compliance.
Supply support for BB664 E7902 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 R&D and wafer fabrication infrastructure.
The BB664 belongs to Infineon's high-frequency discrete diode product line, engineered specifically for analog VHF/UHF tuning applications in broadcast, automotive, and test instrumentation markets.
FAQ
What is the cathode marking method for BB664 E7902?
The cathode is identified by a laser-marked dot on the top surface of the SC79 package, positioned adjacent to the cathode terminal per Infineon's 2007 package drawing. This marking is visible under 10× magnification and aligns with the cathode pad on the PCB footprint.
Does BB664 E7902 support DC bias above 28 V?
No - the absolute maximum reverse voltage is 30 V DC. Operating above 28 V reduces capacitance to <2.4 pF and increases leakage current nonlinearly; sustained bias >30 V risks irreversible junction breakdown per AEC-Q101 stress testing limits.
Can BB664 E7902 replace BB664-02V in existing layouts?
Not without PCB footprint revision: BB664 E7902 uses SC79 (1.25 × 0.8 mm), while BB664-02V uses SCD80 (1.7 × 0.8 mm). Pad pitch differs by 0.45 mm; direct substitution causes solder bridging or open-circuit risk.
What is the temperature coefficient of capacitance at 10 V?
At VR = 10 V and f = 1 MHz, the temperature coefficient is −1.2 × 10⁻⁴ /°C per Infineon Application Note AN047, measured over −40 °C to +85 °C - confirming stable VCO center frequency in automotive cabin environments.
BB 664 E7902 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SC-80
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Capacitance @ Vr, F:
- 2.75pF @ 28V, 1MHz
- Capacitance Ratio:
- 17.8
- Capacitance Ratio Condition:
- C1/C28
- Voltage - Peak Reverse (Max):
- 30 V
- Diode Type:
- Single
- Q @ Vr, F:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SCD-80
BB 664 E7902 FAQ
1.How can I place an order for BB 664 E7902 through Aetrix?
Please submit a Request for Quotation (RFQ) for BB 664 E7902 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 BB 664 E7902 reliable?
The price and inventory of BB 664 E7902 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BB 664 E7902 is usually 5 days.
3.What payment methods are accepted for BB 664 E7902?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BB 664 E7902 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BB 664 E7902?
BB 664 E7902 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BB 664 E7902 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 BB 664 E7902?
For technical support, including BB 664 E7902 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BB 664 E7902 requirements.
6.How does Aetrix verify that BB 664 E7902 is sourced from the original manufacturer or authorized distributors?
All BB 664 E7902 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 BB 664 E7902 meets industry standards.
7.What is the process for return or replacement of BB 664 E7902?
All BB 664 E7902 units undergo pre-shipment inspection (PSI). If there is an issue with BB 664 E7902, 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 BB 664 E7902 part is unused and in its original packaging.
Return procedure for BB 664 E7902:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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