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Infineon Technologies BB66402VH7902XTSA1
- Part No.:
- BB66402VH7902XTSA1
- Manufacturer:
- Infineon Technologies
- Package:
- SC-79, SOD-523
- Datasheet:
-
BB66402VH7902XTSA1.pdf
- Description:
- DIODE VAR CAP 30V 20MA SC79
- Quantity:
- Payment:
- Shipping:
Inventory:3,409
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Product details
Overview
BB66402VH7902XTSA1 from Infineon Technologies is a silicon hyperabrupt junction varactor diode in SC79 (SOD-523) package, optimized for VHF TV tuner frequency synthesis. It delivers 39–44.5 pF capacitance at 1 V reverse bias, 2.4–2.75 pF at 28 V, 15–17.8:1 capacitance ratio (1 V/28 V), 0.6–0.75 Ω series resistance at 470 MHz, and ±2% capacitance matching across 7-diode sequences.
For engineers reviewing the BB66402VH7902XTSA1 datasheet, BB66402VH7902XTSA1 pinout, BB66402VH7902XTSA1 application, or BB66402VH7902XTSA1 equivalent, key selection criteria include VHF tuning linearity, low RF series resistance, tight capacitance matching for multi-stage filters, and AEC-Q101 qualification for automotive tuner modules.
Technical Context
This varactor operates as a voltage-controlled capacitor in resonant tank circuits, where reverse bias voltage directly modulates junction depletion width to tune oscillation frequency. Its hyperabrupt doping profile ensures near-linear C–V response in the 1–28 V range, critical for stable VHF channel selection.
The device uses an "in-line" matching assembly process to achieve ≤2% inter-device capacitance variation across production lots, enabling predictable filter center frequency alignment without post-assembly trimming in high-volume TV tuner front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance @ 1 V | 39–44.5 pF - sets low-end tuning limit and tank Q in VHF oscillator designs |
| Capacitance @ 28 V | 2.4–2.75 pF - defines high-frequency cutoff and tuning range span |
| Capacitance Ratio (1 V/28 V) | 15–17.8:1 - enables ≥100 MHz continuous tuning bandwidth in 170–230 MHz VHF band |
| Series Resistance @ 470 MHz | 0.6–0.75 Ω - minimizes insertion loss and maintains >15 dB isolation in RF matching networks |
| Capacitance Matching | ≤2% ∆CT/CT across 7 diodes - eliminates need for binning or manual calibration in multi-pole filter arrays |
| Reverse Voltage Rating | 30 V DC, 35 V peak - supports standard 24 V tuner supply rails with 20% safety margin |
| Operating Temperature | −55 °C to +150 °C - qualified for under-hood automotive tuner environments per AEC-Q101 |
Pinout & Package
BB66402VH7902XTSA1 is housed in SC79 (SOD-523) surface-mount package: 1.2 mm × 0.8 mm × 0.55 mm body, cathode-marked top-side laser marking, single-anode/single-cathode configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | DC bias input / RF AC ground reference | Connected to fixed DC potential; serves as low-impedance RF return path in shunt-tuned configurations |
| Cathode (Pin 2) | RF signal node / tuning voltage terminal | Carries RF signal in series-tuned tanks; accepts variable control voltage for capacitance modulation |
Key Features
| Feature | Design Value |
|---|---|
| Hyperabrupt junction profile | Enables linearized C–V slope over 1–28 V range, reducing distortion in analog FM/VHF tuning loops |
| In-line matching assembly | Guarantees ≤2% capacitance deviation across 7-device sequences for consistent multi-stage filter response |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD (HBM >2 kV) |
| Low series inductance (0.6 nH) | Maintains effective capacitance up to 470 MHz without self-resonance degradation in VHF front-ends |
Applications
| Automotive VHF TV Tuner Modules | Digital Terrestrial TV (DTT) Front-Ends |
|---|---|
Use Scenario: Integrated tuner ICs in car infotainment systems require stable local oscillator (LO) generation across 174–230 MHz band. IC Role / Device Role / Timing Role: BB66402VH7902XTSA1 acts as voltage-variable capacitor in Colpitts LO tank, directly controlled by tuner's DAC output. Use Value: 15–17.8:1 capacitance ratio enables full-band coverage with <±50 kHz frequency error; AEC-Q101 rating ensures operation at 125 °C under hood. | Use Scenario: DTT receivers in set-top boxes use discrete VHF tuners for robust reception in weak-signal urban environments. IC Role / Device Role / Timing Role: Functions as tuning element in switched-bandpass filter banks preceding SAW filters and LNA stages. Use Value: ≤2% capacitance matching across diode arrays ensures repeatable filter center frequency alignment across production batches without test-time adjustment. |
| FM Radio Receiver Synthesizers | VHF Wireless Microphone Transmitters |
Use Scenario: Portable FM radios implement low-cost PLL-based synthesizers for 87.5–108 MHz band coverage. IC Role / Device Role / Timing Role: Provides fine-tuning capacitance in VCO tank, biased via loop filter output to lock to channel frequencies. Use Value: 0.6–0.75 Ω series resistance preserves tank Q >80 at 100 MHz, supporting <1 kHz phase noise floor at 10 kHz offset. | Use Scenario: License-free VHF wireless mics (174–216 MHz) require compact, stable transmitters with fast channel switching. IC Role / Device Role / Timing Role: Serves as primary tuning capacitor in fundamental-mode VCO, driven by microcontroller GPIO PWM for coarse channel selection. Use Value: Hyperabrupt C–V linearity reduces harmonic content in tuning voltage ramp, minimizing spurious emissions during frequency hopping. |
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, identical C–V curve and matching spec, but in SCD80 (SOD-323) package (1.7 × 0.8 mm) | Larger footprint; higher thermal mass; less suitable for ultra-dense tuner layouts | Select when board space allows larger package and thermal dissipation is prioritized over miniaturization |
| BB644-02V | Lower capacitance range (22–25 pF @ 1 V), lower C-ratio (10–12:1), same SC79 package | Optimized for UHF tuning (470–862 MHz); insufficient VHF range coverage for 174–230 MHz | Choose only for UHF-focused designs requiring tighter high-V capacitance control below 3 pF |
Compared with BB664-02V and BB644-02V, BB66402VH7902XTSA1 uniquely combines SC79 miniaturization, VHF-optimized 39–44.5 pF range, and 15–17.8:1 ratio-making it the sole option meeting both automotive space constraints and full VHF band coverage requirements.
Availability
BB66402VH7902XTSA1 is available at Aetrix Electronics and suitable for automotive infotainment systems, digital terrestrial TV receivers, portable FM radios, and VHF wireless microphone transmitters requiring stable component supply across extended temperature ranges and high-volume production cycles.
Supply support for BB66402VH7902XTSA1 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, automotive electronics, and RF components, with global R&D and manufacturing infrastructure.
BB66402VH7902XTSA1 belongs to Infineon's BB6xx varactor family, engineered specifically for high-reliability, high-linearity VHF tuning in automotive and broadcast receiver applications.
FAQ
What is the maximum recommended reverse voltage for continuous operation?
The absolute maximum DC reverse voltage is 30 V at 25 °C, with a peak rating of 35 V. Operation above 30 V risks irreversible junction breakdown. Derating to 24 V is advised for designs operating above 85 °C ambient to maintain long-term reliability under thermal stress.
How does the 2% capacitance matching specification apply in practice?
The ≤2% ∆CT/CT applies to sequences of seven devices from the same wafer lot, measured at 1–28 V and 1 MHz. It enables direct replacement in multi-varactor filter banks without individual calibration-critical for automated assembly of automotive tuner modules where test time reduction is essential.
Is BB66402VH7902XTSA1 suitable for RF power amplifier tuning?
No. This device is rated for 20 mA forward current and not designed for RF power handling. Its 0.6–0.75 Ω series resistance and thin junction are optimized for low-loss VHF signal tuning-not for high-current bias or high-RF-power impedance matching in PA stages.
Does the SC79 package support reflow soldering per J-STD-020?
Yes. The SC79 package is qualified for lead-free reflow per J-STD-020D, with peak temperature tolerance up to 260 °C for 10 seconds. Standard SnAgCu paste and standard IR/convection profiles are validated; no special pre-bake or nitrogen atmosphere is required.
BB66402VH7902XTSA1 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:
- 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:
- PG-SC79-2
BB66402VH7902XTSA1 FAQ
1.How can I place an order for BB66402VH7902XTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BB66402VH7902XTSA1 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 BB66402VH7902XTSA1 reliable?
The price and inventory of BB66402VH7902XTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BB66402VH7902XTSA1 is usually 5 days.
3.What payment methods are accepted for BB66402VH7902XTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BB66402VH7902XTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BB66402VH7902XTSA1?
BB66402VH7902XTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BB66402VH7902XTSA1 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 BB66402VH7902XTSA1?
For technical support, including BB66402VH7902XTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BB66402VH7902XTSA1 requirements.
6.How does Aetrix verify that BB66402VH7902XTSA1 is sourced from the original manufacturer or authorized distributors?
All BB66402VH7902XTSA1 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 BB66402VH7902XTSA1 meets industry standards.
7.What is the process for return or replacement of BB66402VH7902XTSA1?
All BB66402VH7902XTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BB66402VH7902XTSA1, 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 BB66402VH7902XTSA1 part is unused and in its original packaging.
Return procedure for BB66402VH7902XTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BB66402VH7902XTSA1 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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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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Skyworks Solutions Inc.
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