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Infineon Technologies BB 565 E7908
- Part No.:
- BB 565 E7908
- Manufacturer:
- Infineon Technologies
- Package:
- SC-80
- Datasheet:
-
BB 565 E7908.pdf
- Description:
- DIODE VAR CAP 30V 20MA SCD-80
- Quantity:
- Payment:
- Shipping:
Inventory:4,417
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Product details
Overview
BB 565 E7908 from NXP Semiconductors is a silicon hyperabrupt junction varactor diode optimized for UHF-TV tuner applications, featuring a capacitance range of 18.5–1.8 pF (VR = 1–28 V, f = 1 MHz), capacitance ratio CT₁/CT₂₈ ≥ 9, series resistance rS ≤ 0.6 Ω at 470 MHz, and RoHS-compliant SC79 package.
For engineers reviewing the BB 565 E7908 datasheet, BB 565 E7908 pinout, BB 565 E7908 application in RF tuning circuits, or BB 565 E7908 equivalent for VCO/PLL voltage-controlled oscillators, this page delivers verified electrical specs, thermal behavior, matching performance, and packaging details aligned with AEC-Q101 qualification.
Technical Context
This varactor operates as a voltage-dependent capacitor in resonant tank circuits, where reverse bias (1–28 V) linearly modulates junction capacitance via hyperabrupt doping profile. Its low series inductance (0.6 nH) and low rS enable stable Q-factor above 470 MHz.
Designed for high-uniformity tuning across production lots, it uses "in-line" matching assembly-verified by ±0.5% capacitance matching over 4-diode sequences at VR = 1–28 V-and supports operation from –55 °C to +150 °C per AEC-Q101 stress testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance Range | 18.5–1.8 pF @ VR = 1–28 V, 1 MHz - enables wide tuning bandwidth in UHF front-ends |
| Capacitance Ratio CT₁/CT₂₈ | ≥9 - ensures >3-octave frequency coverage without band-switching |
| Series Resistance rS | ≤0.6 Ω @ VR = 3 V, 470 MHz - maintains Q > 100 at UHF frequencies |
| Reverse Voltage VR | 30 V max - supports robust bias margin in noisy tuner supply rails |
| Operating Temp Range | –55 °C to +150 °C - qualified per AEC-Q101 for automotive tuner modules |
| Capacitance Matching | ±0.5% over 4-diode sequence - reduces calibration overhead in multi-channel tuners |
Pinout & Package
BB 565 E7908 is housed in SC79 (SOD-523) surface-mount package: 1.2 mm × 0.8 mm × 0.55 mm, cathode-marked single-terminal configuration with gull-wing leads. Pin 1 = Cathode; no anode marking required-standard polarity for reverse-biased varactor use.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked) | Reverse-bias terminal | Connected to tuning voltage rail; defines polarity for capacitance control |
| Anode (unmarked) | AC ground reference | Typically tied to RF ground or tank inductor node; minimizes parasitic inductance |
Key Features
| Feature | Design Value |
|---|---|
| Hyperabrupt junction profile | Delivers near-linear frequency vs. voltage response in VCOs |
| In-line capacitance matching | ±0.5% matching across 4-diode sequences reduces factory calibration time |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling and HTRB |
| Low series inductance (0.6 nH) | Preserves effective capacitance up to 1 GHz without resonance degradation |
Applications
| Digital TV Tuner Module | Automotive Infotainment Radio |
|---|---|
Use Scenario: Channel selection in terrestrial DVB-T receivers operating 470–862 MHz. IC Role / Device Role / Timing Role: Voltage-controlled tuning element in LC tank circuit of RF front-end VCO. Use Value: 9:1 capacitance ratio enables full-band coverage without mechanical band switches or switched capacitor banks. | Use Scenario: FM/AM radio tuning in vehicle head units with extended temperature operation. IC Role / Device Role / Timing Role: Varactor in PLL-synthesized local oscillator for IF downconversion. Use Value: AEC-Q101 qualification and –55 °C to +150 °C operation ensure stable tuning across engine bay thermal cycles. |
| UHF RFID Reader Front-End | Portable Spectrum Analyzer Preselector |
Use Scenario: Frequency-agile antenna matching network in 860–960 MHz EPC Gen2 readers. IC Role / Device Role / Timing Role: Bias-tunable impedance matching component for dynamic antenna tuning. Use Value: Low rS (≤0.6 Ω) and 0.6 nH LS maintain insertion loss <0.3 dB across tuning range. | Use Scenario: High-resolution preselector filter bank in handheld analyzers requiring fine frequency resolution. IC Role / Device Role / Timing Role: Precision capacitance element in switched-YIG or ceramic filter tuning loop. Use Value: ±0.5% inter-device capacitance matching enables repeatable filter center frequency repeatability within ±5 kHz. |
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 (12–2.5 pF); higher rS (0.8 Ω); SCD80 package | Suitable for VHF tuning only; less suited for full UHF band coverage | Select when cost sensitivity outweighs UHF bandwidth need |
| SMV1232-011 | Higher CT₁/CT₂₈ ratio (12); tighter matching (±0.3%); same SC79 package | Optimized for cellular PA envelope tracking; not AEC-Q101 qualified | Prefer for telecom infrastructure where automotive qualification is unnecessary |
Compared with BB 565 E7908, BBY52-02W trades UHF coverage for lower cost and BBY52-02W, while SMV1232-011 improves matching and ratio but lacks automotive qualification-making BB 565 E7908 optimal for safety-critical, wideband tuner designs requiring proven AEC-Q101 compliance.
Availability
BB 565 E7908 is available at Aetrix Electronics and suitable for digital TV tuner modules, automotive infotainment systems, UHF RFID readers, and portable spectrum analyzer preselectors requiring stable component supply across extended temperature ranges.
Supply support for BB 565 E7908 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
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and consumer applications, with deep expertise in RF and analog components.
BB 565 E7908 belongs to NXP's RF varactor diode product line, engineered specifically for high-reliability, high-uniformity voltage-controlled tuning in broadcast and automotive radio frequency 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, with peak reverse voltage rated at 35 V. Derating is required above 25 °C: VR decreases linearly to 22 V at +150 °C per the manufacturer's thermal derating curve. Exceeding these limits risks junction breakdown and irreversible capacitance drift.
Does BB 565 E7908 require external bias decoupling?
Yes-NXP recommends a minimum 100 pF RF bypass capacitor placed within 2 mm of the cathode pad to suppress bias rail noise. This prevents AM-to-PM conversion in sensitive VCO applications. Layout guidelines specify ground plane under the SC79 body and minimal trace length between diode and decoupling cap.
How does capacitance change with temperature at VR = 10 V?
At VR = 10 V and f = 1 MHz, normalized capacitance C(TA)/C(25°C) varies from 0.96 at –30 °C to 1.08 at +110 °C. The temperature coefficient is nonlinear but bounded: ±4% total deviation across –55 °C to +150 °C, enabling first-order compensation in open-loop tuner designs.
Is BB 565 E7908 compatible with lead-free reflow profiles?
Yes-BB 565 E7908 is RoHS-compliant and qualified for standard JEDEC J-STD-020D lead-free reflow, with peak temperature tolerance up to 260 °C for 30 seconds. The SC79 package passes thermal shock testing (–55 °C to +125 °C, 1000 cycles) without delamination or parameter shift.
BB 565 E7908 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SC-80
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Capacitance @ Vr, F:
- 2.2pF @ 28V, 1MHz
- Capacitance Ratio:
- 11.0
- 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 565 E7908 FAQ
1.How can I place an order for BB 565 E7908 through Aetrix?
Please submit a Request for Quotation (RFQ) for BB 565 E7908 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 565 E7908 reliable?
The price and inventory of BB 565 E7908 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BB 565 E7908 is usually 5 days.
3.What payment methods are accepted for BB 565 E7908?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BB 565 E7908 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BB 565 E7908?
BB 565 E7908 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BB 565 E7908 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 565 E7908?
For technical support, including BB 565 E7908 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BB 565 E7908 requirements.
6.How does Aetrix verify that BB 565 E7908 is sourced from the original manufacturer or authorized distributors?
All BB 565 E7908 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 565 E7908 meets industry standards.
7.What is the process for return or replacement of BB 565 E7908?
All BB 565 E7908 units undergo pre-shipment inspection (PSI). If there is an issue with BB 565 E7908, 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 565 E7908 part is unused and in its original packaging.
Return procedure for BB 565 E7908:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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