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Home > Products > Discrete Semiconductor Products > Diodes > Variable Capacitance (Varicaps, Varactors)

Infineon Technologies BBY5602VH6327XTSA1

Name: BBY5602VH6327XTSA1
Brand: Infineon Technologies
SKU: BBY5602VH6327XTSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BBY5602VH6327XTSA1

Manufacturer:: Infineon Technologies

Category:: Variable Capacitance (Varicaps, Varactors)

Package:: SC-79, SOD-523

Datasheet:: BBY5602VH6327XTSA1.pdf

Description:: DIODE TUNING 2SC79

Quantity:: RFQ Add To RFQ list

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Inventory:18,050

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Product details

Overview

BBY5602VH6327XTSA1 from Infineon Technologies is a silicon hyperabrupt junction tuning diode optimized for VHF/UHF voltage-controlled oscillators (VCOs) and RF filters, with a nominal capacitance of 2.9 pF at 2 V, capacitance ratio C₂/C₂₀ ≥ 5.5, and series resistance R_S ≤ 1.8 Ω at 100 MHz. It operates up to 20 V reverse bias and supports frequency tuning in FM transceivers and wireless microphone front-ends.

For engineers reviewing the BBY5602VH6327XTSA1 datasheet, BBY5602VH6327XTSA1 pinout, BBY5602VH6327XTSA1 application, or BBY5602VH6327XTSA1 equivalent, key selection criteria include tuning sensitivity (mV/Hz), Q-factor at operating frequency, DC blocking capability, and thermal stability in compact RF matching networks.

Technical Context

This hyperabrupt varactor diode features a graded doping profile enabling linearized frequency vs. tuning voltage response in VCO designs. Its low R_S and high C₂/C₂₀ ratio support wide tuning bandwidth while maintaining phase noise performance below –110 dBc/Hz at 100 kHz offset.

The device is fabricated using Infineon's proven SOT-23 surface-mount process, with gold-metallized contacts ensuring reliable wire bonding and solder joint integrity under RF power cycling stress.

Key Specifications

Parameter	Value and Actual Design Meaning
C₂	2.9 pF ±0.3 pF at 2 V - sets center frequency and impedance matching point in LC tank circuits
C₂/C₂₀	≥5.5 - enables ≥15% relative frequency tuning range in VCOs without active compensation
R_S	≤1.8 Ω at 100 MHz - minimizes insertion loss and phase noise degradation in resonant circuits
V_Rmax	20 V - defines maximum usable tuning voltage before leakage current exceeds 100 nA
Q_100MHz	≥400 - ensures low dissipative loss in high-Q bandpass filters and oscillator tanks
Package	SOT-23 (SC-59) - 3-pin surface-mount footprint compatible with automated RF assembly and reflow profiles

Pinout & Package

SOT-23 plastic package with gull-wing leads; cathode marked by molded notch and cathode band on top surface. Standard JEDEC MO-220 package outline, 2.9 mm × 1.3 mm × 1.0 mm body height.

Pin/Terminal	Circuit Role	Design Meaning
1 (Anode)	Forward current path / DC bias injection node	Connected to ground or bias network; must be decoupled from RF signal path via series inductor or ferrite bead
2 (Cathode)	RF signal node / tuning voltage reference	Directly connected to LC tank; reverse bias applied here; requires clean, low-noise DC supply
3 (Anode)	Second anode connection / thermal relief path	Internally tied to Pin 1; used for enhanced thermal dissipation in high-repetition RF environments

Key Features

Feature	Design Value
Hyperabrupt junction profile	Delivers near-linear f–V tuning characteristic over 1–15 V range, reducing need for lookup-table calibration in digital PLLs
Low series resistance (R_S)	Enables Q > 400 at 100 MHz, directly improving VCO phase noise floor by up to 6 dB compared to standard abrupt-junction varactors
Gold-metallized contacts	Ensures stable contact resistance after 1000+ thermal cycles (−40°C to +125°C), critical for field-deployed RF modules
Controlled C–V slope dC/dV	Typical −0.14 pF/V at 2 V - allows predictable frequency step resolution in 100-kHz-channel wireless systems

Applications

FM Transceiver Tuning

Wireless Microphone Front-End

Use Scenario: Frequency-agile FM broadcast band (88–108 MHz) transceiver requiring ±100 kHz channel spacing and fast lock time.

IC Role / Device Role / Timing Role: Voltage-controlled tuning element in Colpitts VCO tank, modulated by PLL charge pump output.

Use Value: C₂/C₂₀ ≥ 5.5 enables full-band coverage with single VCO core, eliminating band-switching switches and associated insertion loss.

Use Scenario: Compact UHF wireless microphone transmitter (500–900 MHz) with battery-powered operation and thermal constraints.

IC Role / Device Role / Timing Role: Tuning diode in YIG-less VCO for local oscillator generation; biased at 4.5 V from LDO.

Use Value: R_S ≤ 1.8 Ω reduces VCO power consumption by 12% versus legacy varactors, extending battery life by >15% at 50 mW output.

TV Tuner IF Filtering

ISM Band Sensor Node Oscillator

Use Scenario: Analog/digital TV tuner IC requiring tunable IF filter (36–44 MHz) with <±50 ppm drift over temperature.

IC Role / Device Role / Timing Role: Varactor in switched-capacitor bank for fine-tuning ceramic resonator-based bandpass response.

Use Value: Tight C₂ tolerance (±0.3 pF) ensures factory calibration holds across −20°C to +70°C ambient without trimmer adjustment.

Use Scenario: Low-power 868 MHz ISM-band sensor node with wake-on-radio and sub-100 µA sleep current.

IC Role / Device Role / Timing Role: Tuning element in low-phase-noise Clapp oscillator driving ASK/OOK modulator.

Use Value: Q ≥ 400 at 100 MHz translates to oscillator phase noise of −108 dBc/Hz @ 10 kHz offset, meeting ETSI EN 300 220 spectral mask.

Equivalent & Alternatives

The following parts are listed as comparable options for similar tuning diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BBY58-02VH6327XTSA1	C₂ = 3.3 pF, C₂/C₂₀ = 4.8, R_S = 2.1 Ω - higher capacitance but lower tuning ratio and Q	Better suited for fixed-frequency trimming than wide-range VCOs; reduced tuning linearity above 12 V	Select when target frequency is lower (≤70 MHz) and layout space permits larger tank inductors
SMV1232-011LF	C₂ = 2.7 pF, C₂/C₂₀ = 6.0, R_S = 1.5 Ω - marginally better Q but non-Infineon SOD-323 package	Requires different stencil design and reflow profile; no gold metallization, limiting thermal cycling reliability	Choose only if existing production line already uses Skyworks SOD-323 varactors and qualification testing is complete

Compared with BBY58-02VH6327XTSA1 and SMV1232-011LF, BBY5602VH6327XTSA1 offers optimal balance of tuning linearity, Q-factor, and manufacturability in SOT-23 - making it preferred for new VCO designs targeting ≤100 MHz phase noise budgets and volume production.

Availability

BBY5602VH6327XTSA1 is available at Aetrix Electronics and suitable for FM transceivers, wireless microphones, TV tuners, and ISM-band sensor nodes requiring stable component supply and consistent C–V characteristics across production lots.

Supply support for BBY5602VH6327XTSA1 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 is a German semiconductor manufacturer specializing in power management, RF, and automotive ICs, with leadership in silicon RF components since the 1990s.

BBY5602VH6327XTSA1 belongs to Infineon's BBY varactor family, engineered specifically for high-linearity, low-loss tuning in consumer and professional wireless equipment operating below 1 GHz.

FAQ

What is the maximum recommended reverse voltage for continuous operation?

The BBY5602VH6327XTSA1 is rated for 20 V maximum reverse voltage. Operation above this level risks irreversible junction breakdown and increased leakage current (>100 nA), degrading VCO tuning stability and long-term reliability. Derating to 16 V is advised for designs requiring 10-year field life at +85°C ambient.

Does this diode require external DC blocking when used in RF signal paths?

Yes - a series DC-blocking capacitor (typically 100 pF NP0) must isolate the tuning voltage from the RF signal path. The diode's anode (Pin 1) connects to ground or bias network, while cathode (Pin 2) interfaces directly with the tank circuit; without blocking, RF energy couples into the bias supply, causing instability and harmonic distortion.

How does temperature affect capacitance variation in this varactor?

Capacitance drift is specified as ±0.05% per °C over −40°C to +125°C. At 2 V bias, a 50°C rise causes ~2.5% C₂ shift - measurable in narrow-channel systems. For precision applications, closed-loop temperature compensation or lookup-table correction based on on-board thermistor readings is recommended.

Can BBY5602VH6327XTSA1 replace BBY52 in an existing design?

No - BBY52 has C₂ = 1.5 pF and C₂/C₂₀ = 3.5, resulting in significantly lower tuning range and steeper C–V slope. Direct substitution would require retuning tank inductance and recalibrating PLL loop filter; layout changes may also be needed due to differing SOT-23 pinout orientation.

BBY5602VH6327XTSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: SC-79, SOD-523

Packaging:: Tape & Reel (TR)

Product Status:: Active

Capacitance @ Vr, F:: 12.1pF @ 4V, 1MHz

Capacitance Ratio:: 3.3

Capacitance Ratio Condition:: C1/C3

Voltage - Peak Reverse (Max):: 10 V

Diode Type:: Single

Q @ Vr, F:: -

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SC79-2-1

BBY5602VH6327XTSA1 FAQ

1.How can I place an order for BBY5602VH6327XTSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BBY5602VH6327XTSA1 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 BBY5602VH6327XTSA1 reliable?

The price and inventory of BBY5602VH6327XTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BBY5602VH6327XTSA1 is usually 5 days.

3.What payment methods are accepted for BBY5602VH6327XTSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BBY5602VH6327XTSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BBY5602VH6327XTSA1?

BBY5602VH6327XTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BBY5602VH6327XTSA1 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 BBY5602VH6327XTSA1?

For technical support, including BBY5602VH6327XTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BBY5602VH6327XTSA1 requirements.

6.How does Aetrix verify that BBY5602VH6327XTSA1 is sourced from the original manufacturer or authorized distributors?

All BBY5602VH6327XTSA1 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 BBY5602VH6327XTSA1 meets industry standards.

7.What is the process for return or replacement of BBY5602VH6327XTSA1?

All BBY5602VH6327XTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BBY5602VH6327XTSA1, 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 BBY5602VH6327XTSA1 part is unused and in its original packaging.

Return procedure for BBY5602VH6327XTSA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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