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Infineon Technologies BB 659 E7902
- Part No.:
- BB 659 E7902
- Manufacturer:
- Infineon Technologies
- Package:
- SC-80
- Datasheet:
-
BB 659 E7902.pdf
- Description:
- DIODE VAR CAP 30V 20MA SCD-80
- Quantity:
- Payment:
- Shipping:
Inventory:8,870
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Product details
Overview
BB 659 E7902 from Infineon Technologies is a silicon hyperabrupt junction varactor diode in SCD80 (SOD-323) package, designed for VHF TV and VTR tuner frequency tuning. It delivers a capacitance range of 2.4–40 pF at 1 MHz, 13.5–14.7× capacitance ratio (VR = 1 V / 28 V), and low series resistance of 0.65 Ω (typ.) at 470 MHz - enabling precise, stable voltage-controlled oscillator (VCO) tuning in broadcast receiver front-ends.
For engineers reviewing the BB 659 E7902 datasheet, BB 659 E7902 pinout, BB 659 E7902 application, or BB 659 E7902 equivalent, key selection criteria include its 2.4–40 pF tunable capacitance span, ±0.4% capacitance matching across 7-diode sequences, 30 V reverse voltage rating, -55 °C to +150 °C operating range, and RoHS-compliant SCD80 surface-mount package.
Technical Context
This hyperabrupt varactor uses a graded doping profile to achieve a near-linear C–V relationship in the 1–28 V tuning range, optimizing phase noise performance in VHF band VCOs. Its low series inductance (1.8 nH) and low series resistance (0.65 Ω typ.) minimize Q-factor degradation above 100 MHz.
The device is manufactured using Infineon's "in-line" matching assembly process, ensuring tight capacitance uniformity across production lots - critical for multi-stage filter alignment and high-yield tuner module calibration without post-assembly trimming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance Range | 2.4–40 pF at 1 MHz (VR = 28 V to 1 V); enables full VHF band coverage (47–230 MHz) in LC-tuned oscillators |
| Capacitance Ratio | 13.5–14.7× (CT₁/CT₂₈); supports wide tuning bandwidth with minimal VCO gain variation |
| Series Resistance | 0.65 Ω (typ.) at VR = 5 V, f = 470 MHz; maintains Q > 100 at 100 MHz for low-phase-noise design |
| Reverse Voltage Rating | 30 V DC (VR), 35 V peak; compatible with standard tuner bias supplies and transient surge conditions |
| Capacitance Matching | ±0.4% max deviation (7-diode sequence); allows direct replacement in matched filter banks without binning |
| Operating Temperature | -55 °C to +150 °C; qualified for under-chassis tuner modules exposed to thermal cycling in consumer electronics |
| Package | SCD80 (SOD-323); 1.7 mm × 1.3 mm footprint, cathode-marked, RoHS-compliant, tape-and-reel (3,000 pcs/reel) |
Pinout & Package
SCD80 (SOD-323) surface-mount package: anode and cathode terminals on opposite ends of a 1.7 mm × 1.3 mm body, with laser-marked cathode band. Low-profile (0.9 mm max height), thermally robust, and optimized for RF layout with minimal parasitic inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC bias input / RF AC ground reference | Connected to tuned circuit ground via low-inductance path; must avoid routing discontinuities to preserve Q |
| Cathode | RF signal node / tuning voltage terminal | Connected to LC tank node; accepts 0–28 V tuning voltage; polarity-sensitive for correct C–V curve orientation |
Key Features
| Feature | Design Value |
|---|---|
| Hyperabrupt junction profile | Delivers linearized frequency vs. tuning voltage response in VHF VCOs, reducing FM distortion |
| In-line matching assembly | Guarantees ≤ ±0.4% capacitance deviation across 7-device sequences for multi-pole filter alignment |
| Low series inductance (1.8 nH) | Extends usable tuning range beyond 200 MHz while maintaining >30 dB isolation at harmonic frequencies |
| Pb-free SCD80 package | Enables direct reflow soldering per J-STD-020; no lead contamination risk in high-volume tuner manufacturing |
| High-temperature operation (+150 °C) | Supports placement near power stages or in sealed tuner modules without derating or thermal shutdown |
Applications
| VHF Broadcast Tuner | CATV Set-Top Box Front-End |
|---|---|
Use Scenario: Analog/digital terrestrial TV tuner module receiving 47–230 MHz signals in compact consumer enclosures. IC Role / Device Role / Timing Role: Voltage-controlled tuning element in LC resonator of broadband VHF VCO, directly modulated by PLL DAC output. Use Value: 14.7× capacitance ratio and ±0.4% matching enable single-VCO architecture covering entire VHF band without band-switching relays. | Use Scenario: Multi-standard (QAM/OFDM) cable receiver front-end requiring stable channel selectivity across temperature. IC Role / Device Role / Timing Role: Tuning diode in switched-capacitor bank for IF filter center-frequency calibration. Use Value: -55 °C to +150 °C rating and low TCc ensure <±50 ppm center-frequency drift over industrial ambient range. |
| VTR Video Head Amplifier Tuning | FM Radio Receiver Local Oscillator |
Use Scenario: High-fidelity analog video tape recorder with real-time head tracking and dynamic frequency compensation. IC Role / Device Role / Timing Role: Fine-tuning element in crystal-stabilized VCO loop, compensating for mechanical head speed variations. Use Value: Low 1.8 nH series inductance preserves oscillator phase margin during rapid 10–100 kHz modulation sweeps. | Use Scenario: Portable FM radio with battery-powered 87.5–108 MHz synthesizer and minimal PCB area. IC Role / Device Role / Timing Role: Primary varactor in Colpitts VCO tank, biased from low-current 3.3 V LDO. Use Value: 30 V VR rating allows use of simple resistive divider from higher supply rails, eliminating dedicated tuning DAC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar varactor diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BBY52-02W | Lower capacitance range (2.9–24 pF), 10.5× ratio, 0.9 Ω rS; SOD-523 package (smaller, higher thermal resistance) | Optimized for UHF (470–862 MHz) rather than VHF; less suitable for wideband TV tuning | Select when UHF-only coverage and space-constrained layouts outweigh VHF matching needs |
| SMV1232-011 | Higher C range (2.5–35 pF), 14× ratio, 0.55 Ω rS; SC-79 package; tighter CT matching (±0.25%) | Designed for cellular PA envelope tracking; lacks VHF-optimized C–V linearity and thermal rating | Prefer for LTE/WiFi front-ends where ultra-low rS matters more than VHF linearity or +150 °C operation |
Compared with BBY52-02W and SMV1232-011, BB 659 E7902 uniquely balances VHF-optimized hyperabrupt C–V linearity, high-temperature reliability, and production-grade capacitance matching - making it the only choice for broadcast tuner modules requiring zero-bin calibration and extended thermal life.
Availability
BB 659 E7902 is available at Aetrix Electronics and suitable for VHF broadcast tuners, CATV set-top box front-ends, and VTR video head amplifier tuning requiring stable component supply across long-lifecycle consumer electronics programs.
Supply support for BB 659 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 leadership in high-reliability discrete components for broadcast and industrial systems.
BB 659 E7902 belongs to Infineon's BB-series hyperabrupt varactor family, engineered specifically for high-yield, temperature-stable VHF tuning in mass-produced TV and video equipment - emphasizing matching accuracy, thermal robustness, and RoHS-compliant manufacturability.
FAQ
What is the maximum recommended tuning voltage for BB 659 E7902 in continuous operation?
The absolute maximum reverse voltage is 30 V DC, but for reliable long-term operation in tuner applications, Infineon specifies 28 V as the upper limit for capacitance characterization and thermal stability. Exceeding 28 V increases leakage current exponentially and accelerates parameter drift, especially above 85 °C ambient.
Does BB 659 E7902 require external matching or binning for use in production tuner modules?
No. BB 659 E7902 is supplied with guaranteed ±0.4% capacitance matching across 7-diode sequences due to Infineon's in-line assembly process. This eliminates the need for post-production binning or manual trimmer adjustment in VHF tuner filter banks and VCO tanks.
How does the SCD80 package affect RF performance compared to larger packages like SOD-523?
The SCD80 package reduces series inductance to 1.8 nH - 0.3 nH lower than typical SOD-523 varactors - which directly improves Q-factor above 100 MHz. Its wider pad geometry also enhances thermal dissipation, supporting stable operation at +150 °C without derating.
Can BB 659 E7902 be used in DC-coupled tuning circuits?
No. BB 659 E7902 is a reverse-biased varactor and must operate with DC blocking capacitors in series. Direct DC coupling risks forward conduction, irreversible junction damage, and catastrophic failure. All application circuits must maintain ≥0.5 V reverse bias margin at all operating points.
BB 659 E7902 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SC-80
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Capacitance @ Vr, F:
- 2.9pF @ 28V, 1MHz
- Capacitance Ratio:
- 14.7
- 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 659 E7902 FAQ
1.How can I place an order for BB 659 E7902 through Aetrix?
Please submit a Request for Quotation (RFQ) for BB 659 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 659 E7902 reliable?
The price and inventory of BB 659 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 659 E7902 is usually 5 days.
3.What payment methods are accepted for BB 659 E7902?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BB 659 E7902 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BB 659 E7902?
BB 659 E7902 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BB 659 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 659 E7902?
For technical support, including BB 659 E7902 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BB 659 E7902 requirements.
6.How does Aetrix verify that BB 659 E7902 is sourced from the original manufacturer or authorized distributors?
All BB 659 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 659 E7902 meets industry standards.
7.What is the process for return or replacement of BB 659 E7902?
All BB 659 E7902 units undergo pre-shipment inspection (PSI). If there is an issue with BB 659 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 659 E7902 part is unused and in its original packaging.
Return procedure for BB 659 E7902:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BB 659 E7902 Tags
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BBY5702VH6327XTSA1
Infineon Technologies
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BBY5602VH6327XTSA1
Infineon Technologies
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SMV1405-040LF
Skyworks Solutions Inc.
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BBY6502VH6327XTSA1
Infineon Technologies
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BBY6602VH6327XTSA1
Infineon Technologies
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BBY5802VH6327XTSA1
Infineon Technologies
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BB175X
NXP USA Inc.
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SMV1430-040LF
Skyworks Solutions Inc.
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SMV1273-079LF
Skyworks Solutions Inc.
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SMV1255-079LF
Skyworks Solutions Inc.
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SMV1213-079LF
Skyworks Solutions Inc.
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SMV1247-079LF
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