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Infineon Technologies BB 659C-02V E7912
- Part No.:
- BB 659C-02V E7912
- Manufacturer:
- Infineon Technologies
- Package:
- SC-79, SOD-523
- Datasheet:
-
BB 659C-02V E7912.pdf
- Description:
- DIODE VARIABLE 30V 20MA SC-79
- Quantity:
- Payment:
- Shipping:
Inventory:7,220
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Product details
Overview
BB 659C-02V E7912 from Infineon Technologies is a silicon hyperabrupt junction varactor diode in SC79 package, designed for VHF band tuning in TV/VTR tuners. It delivers CT = 36.5–42 pF at VR = 1 V, CT = 2.4–2.75 pF at VR = 28 V, capacitance ratio CT₁/CT₂₈ ≥ 14.2, series resistance rS ≤ 0.7 Ω at 470 MHz, and operates from –55 °C to +150 °C.
For engineers reviewing the BB 659C-02V E7912 datasheet, BB 659C-02V pinout, BB 659C-02V application in tuner front-ends, or BB 659C-02V equivalent for VHF voltage-controlled oscillators, this page provides verified electrical specs, package mapping, terminal roles, matching performance, and RoHS-compliant sourcing context.
Technical Context
This varactor operates as a voltage-dependent capacitor where reverse bias (1–28 V) modulates junction depletion width. Its hyperabrupt doping profile enables high CT ratio and linearized frequency vs. tuning voltage response-critical for stable VHF oscillator tracking across temperature.
Designed for "in-line" matched assembly, it achieves ∆CT/CT ≤ 0.5% over 1–28 V across 4-diode sequences, ensuring consistent channel-to-channel capacitance in multi-tuner modules. Low LS = 0.6 nH and rS ≤ 0.7 Ω preserve Q-factor above 470 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance @ 1 V | 36.5–42 pF - sets low-end VCO frequency and tuning range span |
| Capacitance @ 28 V | 2.4–2.75 pF - defines high-frequency limit and VCO upper band edge |
| Capacitance Ratio CT₁/CT₂₈ | ≥14.2 - enables >3.5:1 frequency tuning ratio in LC tank circuits |
| Series Resistance rS | ≤0.7 Ω @ 470 MHz - maintains Q > 100 at VHF, minimizing phase noise degradation |
| Series Inductance LS | 0.6 nH - limits self-resonant frequency to >1.5 GHz, preserving capacitive behavior up to 470 MHz |
| Reverse Voltage Rating VR | 30 V DC - supports wide-tuning-range bias networks with safety margin |
| Operating Temp Range | –55 °C to +150 °C - qualified for automotive tuner modules and industrial broadcast receivers |
Pinout & Package
SC79 surface-mount package: single anode/cathode configuration, cathode marked by bar, 1.3 mm × 0.7 mm footprint, 0.8 mm height, Pb-free matte tin termination.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC bias input / AC ground reference | Connected to fixed potential (e.g., VCC via RF choke); establishes reverse bias polarity |
| Cathode | Tuning node / RF signal path | Connected directly to LC tank; voltage variation here modulates resonant frequency |
Key Features
| Feature | Design Value |
|---|---|
| Hyperabrupt junction profile | Enables near-linear f₀ vs. V tune characteristic in VHF LC oscillators |
| In-line matching assembly | Guarantees ∆CT/CT ≤ 0.5% across 4-diode sequences for multi-channel tuner consistency |
| Low rS (≤0.7 Ω) @ 470 MHz | Preserves tank Q-factor >100, limiting VCO phase noise floor at 100 kHz offset |
| Pb-free SC79 package | RoHS-compliant reflow profile (JEDEC J-STD-020), compatible with leaded and lead-free assembly |
Applications
| VHF TV Tuner Front-End | VTR Channel Selector |
|---|---|
Use Scenario: Voltage-controlled tuning of Y/C separation and IF filter alignment in analog broadcast TV receivers. IC Role / Device Role / Timing Role: Varactor diode providing bias-dependent capacitance in parallel-resonant LC tank with ferrite-core inductor. Use Value: CT ratio ≥14.2 enables full VHF band (47–230 MHz) coverage with single-tank design and <±0.5 MHz channel drift over –20 to +70 °C. | Use Scenario: Precision frequency selection in video tape recorder playback head preamplifier tuning circuits. IC Role / Device Role / Timing Role: Tuning element in high-Q ceramic resonator coupling network for luminance/chroma bandpass filtering. Use Value: Matching tolerance ≤0.5% ensures consistent channel gain flatness across production batches without per-unit calibration. |
| Automotive Radio AM/FM Diversity Tuner | Portable DVB-T Demodulator Front-End |
Use Scenario: Dual-path VHF tuning in vehicle-mounted diversity radio receivers requiring thermal stability. IC Role / Device Role / Timing Role: Temperature-compensated varactor in switched LC bank for antenna impedance matching and image rejection. Use Value: Operating range –55 to +150 °C allows direct placement near power amplifiers without derating or external compensation. | Use Scenario: Compact UHF/VHF tuning in battery-powered digital terrestrial TV dongles. IC Role / Device Role / Timing Role: Miniature voltage-variable capacitor in SAW-filter-coupled LNA input matching network. Use Value: SC79 footprint (1.3 × 0.7 mm) reduces board area by 40% vs. SOD-323 while maintaining identical CT performance. |
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 CT ratio (CT₁/CT₂₈ ≈ 10.5), higher rS (0.9 Ω), same SC79 package | Suitable for narrower-band FM-only tuners; insufficient for full VHF TV band | Select when cost sensitivity outweighs VHF bandwidth requirement |
| SMV1232-011 | Higher CT (45 pF @ 1 V), tighter matching (∆CT/CT ≤ 0.3%), but requires 0.5 mm pitch reflow | Better for high-volume DTV demodulators needing sub-0.3% unit-to-unit drift | Prefer for new designs targeting DVB-T2 compliance with automated optical inspection |
Compared with BBY52-02W and SMV1232-011, BB 659C-02V E7912 uniquely balances wide VHF tuning range (14.2 ratio), production-ready matching (≤0.5%), and legacy-compatible SC79 assembly-making it optimal for drop-in replacement in existing TV/VTR tuner PCBs.
Availability
BB 659C-02V E7912 is available at Aetrix Electronics and suitable for VHF TV tuners, automotive radio diversity receivers, portable DVB-T front-ends, and industrial broadcast equipment requiring stable component supply across extended temperature ranges.
Supply support for BB 659C-02V E7912 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.
BB 659C-02V belongs to Infineon's RF discrete varactor family, engineered specifically for high-stability, high-yield VHF/UHF tuning in consumer and automotive broadcast systems.
FAQ
What is the maximum recommended reverse voltage for continuous operation?
The absolute maximum DC reverse voltage is 30 V at TA = 25 °C. Derating is required above 25 °C: VR decreases linearly to 22 V at +125 °C per the datasheet's thermal derating curve. Exceeding VR risks junction breakdown and irreversible capacitance shift.
Does BB 659C-02V E7912 support RF signal injection on the cathode terminal?
Yes-the cathode is the designated RF tuning node. Its low rS (≤0.7 Ω) and LS (0.6 nH) allow direct connection to LC tanks up to 470 MHz without significant loss or resonance distortion. Anode must remain at stable DC potential via RF choke or bias tee.
How is capacitance matching validated for production units?
Matching is verified per Application Note AN047 using 4-diode sequential test under 1–28 V sweep at 1 MHz. Units passing ∆CT/CT ≤ 0.5% receive the "-02V" suffix and E7912 date-code marking, confirming in-line assembly traceability.
Can BB 659C-02V E7912 be used in DC-coupled tuning circuits?
No-this is a reverse-biased varactor only. Forward conduction degrades junction integrity and causes permanent capacitance drift. All applications require strict reverse bias (anode ≥ cathode), with minimum VR = 1 V to ensure full depletion and stable CT.
BB 659C-02V E7912 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Capacitance @ Vr, F:
- 2.75pF @ 28V, 1MHz
- Capacitance Ratio:
- 15.3
- 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:
- PG-SC79-2
BB 659C-02V E7912 FAQ
1.How can I place an order for BB 659C-02V E7912 through Aetrix?
Please submit a Request for Quotation (RFQ) for BB 659C-02V E7912 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 659C-02V E7912 reliable?
The price and inventory of BB 659C-02V E7912 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BB 659C-02V E7912 is usually 5 days.
3.What payment methods are accepted for BB 659C-02V E7912?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BB 659C-02V E7912 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BB 659C-02V E7912?
BB 659C-02V E7912 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BB 659C-02V E7912 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 659C-02V E7912?
For technical support, including BB 659C-02V E7912 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BB 659C-02V E7912 requirements.
6.How does Aetrix verify that BB 659C-02V E7912 is sourced from the original manufacturer or authorized distributors?
All BB 659C-02V E7912 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 659C-02V E7912 meets industry standards.
7.What is the process for return or replacement of BB 659C-02V E7912?
All BB 659C-02V E7912 units undergo pre-shipment inspection (PSI). If there is an issue with BB 659C-02V E7912, 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 659C-02V E7912 part is unused and in its original packaging.
Return procedure for BB 659C-02V E7912:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BB 659C-02V E7912 Tags
-
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
-
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
Skyworks Solutions Inc.
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