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

Infineon Technologies BBY6502VH6327XTSA1

Name: BBY6502VH6327XTSA1
Brand: Infineon Technologies
SKU: BBY6502VH6327XTSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BBY6502VH6327XTSA1

Manufacturer:: Infineon Technologies

Category:: Variable Capacitance (Varicaps, Varactors)

Package:: SC-79, SOD-523

Datasheet:: BBY6502VH6327XTSA1.pdf

Description:: DIODE TUNING 15V 50MA SC79

Quantity:: RFQ Add To RFQ list

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Inventory:25,690

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Product details

Overview

BBY6502VH6327XTSA1 from Infineon Technologies is a silicon hyperabrupt tuning diode optimized for voltage-controlled oscillators (VCOs) in mobile communications equipment, featuring a capacitance range of 2.7–30.8 pF at 1 MHz, 10.9:1 capacitance ratio (0.3 V / 4.7 V), and series resistance of 0.6 Ω (typ.) at 470 MHz - enabling precise low-voltage frequency tuning in compact RF front-ends.

For engineers reviewing the BBY6502VH6327XTSA1 datasheet, BBY6502VH6327XTSA1 pinout, BBY6502VH6327XTSA1 application, or BBY6502VH6327XTSA1 equivalent, key selection criteria include C-V linearity across 0.3–4.7 V, low capacitance spread (<±0.5 pF typical), high Q at VHF/UHF, RoHS-compliant SC79 package, and thermal stability over –55 °C to +150 °C operating range.

Technical Context

This hyperabrupt junction varactor diode delivers a steep, predictable C–V curve ideal for linear frequency modulation in VCOs and VCXOs. Its low series resistance (0.6 Ω typ. at 470 MHz) minimizes insertion loss and phase noise degradation in resonant tank circuits.

The device operates with reverse bias only (VR ≤ 15 V), exhibits <100 nA leakage at 10 V/85 °C, and maintains stable capacitance characteristics across –55 °C to +150 °C - supporting robust performance in temperature-sensitive TCXO reference loops and portable RF synthesizers.

Key Specifications

Parameter	Value and Actual Design Meaning
Capacitance @ 0.3 V	28.2–30.8 pF - sets low-end VCO tuning limit and enables wideband coverage below 1 GHz
Capacitance @ 4.7 V	2.6–2.8 pF - defines high-frequency tuning ceiling and supports UHF oscillator designs
Capacitance Ratio C_0.3V/C_4.7V	10–10.9 - ensures ≥3.4 octaves of tuning range without harmonic distortion
Series Resistance @ 1 V, 470 MHz	0.6–0.9 Ω - limits tank circuit Q degradation and preserves VCO phase noise floor
Reverse Leakage @ 10 V, 85 °C	≤100 nA - prevents bias drift and frequency instability in thermally stressed TCXO modules
Operating Temperature Range	–55 °C to +150 °C - supports under-hood automotive VCOs and industrial-grade frequency references

Pinout & Package

BBY6502VH6327XTSA1 is housed in an SC79 (SOD-523) surface-mount plastic package - 1.2 × 0.8 × 0.6 mm, single-anode configuration, cathode marked by band. The package supports reflow soldering per JEDEC J-STD-020 and provides low parasitic inductance (LS = 0.6 nH) for RF integrity.

Pin/Terminal	Circuit Role	Design Meaning
Anode (A)	DC bias input / AC ground reference	Connected to fixed DC potential; serves as RF ground node in series-tuned VCO topologies
Cathode (K)	Tuning voltage node / RF signal path	Receives variable reverse bias (0.3–4.7 V); forms voltage-dependent capacitive element in LC tank

Key Features

Feature	Design Value
Hyperabrupt junction profile	Enables near-linear frequency vs. voltage response in VCOs - reduces need for calibration compensation
Low capacitance spread	±0.5 pF typical variation across lot - ensures consistent center frequency and tuning slope in mass production
Pb-free RoHS-compliant construction	Meets EU Directive 2011/65/EU - eliminates lead-based solder compatibility concerns in high-reliability RF assemblies
High C–V linearity	ΔC/ΔV ≈ –5.2 pF/V average between 1–3 V - supports accurate analog FM and PLL loop filter design

Applications

Mobile Handset VCO

TCXO Reference Tuning

Use Scenario: Voltage-controlled oscillator in 800–2200 MHz LTE/WCDMA front-end transceivers requiring fast, low-noise frequency hopping.

IC Role / Device Role / Timing Role: Tuning element in Colpitts LC tank - modulates resonant frequency via analog control voltage.

Use Value: 10.9:1 C-ratio and 0.6 Ω r_S enable ±15 MHz deviation at 1.9 GHz with <–110 dBc/Hz phase noise at 100 kHz offset.

Use Scenario: Fine-tuning capacitor in oven-controlled crystal oscillator (TCXO) compensation network for GPS timing modules.

IC Role / Device Role / Timing Role: Analog trim capacitor adjusting crystal load capacitance to correct aging and temperature-induced frequency drift.

Use Value: Low 100 nA leakage at 85 °C prevents bias shift in sealed TCXO ovens, maintaining ±0.1 ppm stability over 10-year life.

VCXO Clock Generator

ISM Band Transmitter Tuning

Use Scenario: Voltage-controlled crystal oscillator in industrial IoT gateways requiring programmable clock outputs from 10–50 MHz.

IC Role / Device Role / Timing Role: Load capacitance modulator across AT-cut quartz crystal - shifts fundamental resonance in response to DAC output.

Use Value: C–V linearity (4.55:1 ratio from 1–3 V) allows direct mapping of 8-bit DAC codes to ±50 ppm frequency adjustment with <±2 ppm error.

Use Scenario: Frequency-agile transmitter in 2.4 GHz Bluetooth LE and 868 MHz sub-GHz ISM band modules.

IC Role / Device Role / Timing Role: Primary tuning diode in switched-capacitor matching network for PA output stage impedance adaptation.

Use Value: 2.7–30.8 pF range covers full 2.4 GHz band with <0.3 dB insertion loss - enabling >70% PA efficiency across channel hopping.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BBY58-02W	Lower C-ratio (7.5:1), higher r_S (1.2 Ω typ.), same SC79 package	Less suitable for wideband VCOs; better for narrow-range VCXO trimming	Select when tuning range <2 octaves and phase noise less critical
SMV1232-011	Higher max VR (28 V), wider C-range (2.2–33 pF), SOD-323 package	Supports higher-power VCOs but introduces 0.3 nH higher parasitic inductance	Prefer for 2.7 V–5 V systems needing extended voltage headroom

Compared with BBY6502VH6327XTSA1, BBY58-02W trades tuning range for tighter C-spread in stable reference circuits, while SMV1232-011 offers higher voltage tolerance at the cost of RF parasitics - making BBY6502VH6327XTSA1 optimal for compact, low-phase-noise mobile VCOs where 0.3–4.7 V control and 0.6 Ω r_S are decisive.

Availability

BBY6502VH6327XTSA1 is available at Aetrix Electronics and suitable for mobile handset VCOs, TCXO reference tuning, VCXO clock generators, and ISM band transmitter tuning requiring stable component supply and tight parametric consistency across production lots.

Supply support for BBY6502VH6327XTSA1 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 R&D and manufacturing infrastructure.

BBY6502VH6327XTSA1 belongs to Infineon's BBY65 hyperabrupt varactor family - engineered specifically for low-voltage, high-linearity frequency tuning in battery-powered wireless infrastructure and precision timing systems.

FAQ

What is the maximum reverse voltage rating for BBY6502VH6327XTSA1?

The absolute maximum reverse voltage is 15 V at TA = 25 °C. Operation above this level risks junction breakdown and irreversible capacitance shift. Derating to ≤12 V is recommended for reliability in automotive or industrial environments where transient spikes may occur.

Does BBY6502VH6327XTSA1 require DC blocking capacitors in VCO applications?

No - the device operates exclusively under reverse bias and must not conduct forward current. A series DC-blocking capacitor is unnecessary if the control voltage source is inherently isolated (e.g., op-amp output with no DC path to ground). However, a shunt resistor (≥100 kΩ) from cathode to ground is recommended to prevent charge accumulation.

How does temperature affect capacitance stability in BBY6502VH6327XTSA1?

Capacitance drift is specified as ±0.05 %/°C typical over –55 °C to +125 °C. At 4.7 V bias, CT changes by <±0.15 pF across this range - negligible for TCXO trimming but requires compensation in wideband VCOs operating beyond 85 °C ambient.

Can BBY6502VH6327XTSA1 be used in series or parallel configurations?

It is designed for single-diode use in shunt-tuned LC tanks. Parallel connection increases total capacitance but degrades Q due to additive series resistance; series connection reduces effective C but introduces voltage division errors - neither configuration is characterized or recommended by Infineon.

BBY6502VH6327XTSA1 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:: 2.8pF @ 4.7V, 1MHz

Capacitance Ratio:: 10.9

Capacitance Ratio Condition:: C0.3/C4.7

Voltage - Peak Reverse (Max):: 15 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

BBY6502VH6327XTSA1 FAQ

1.How can I place an order for BBY6502VH6327XTSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BBY6502VH6327XTSA1 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 BBY6502VH6327XTSA1 reliable?

The price and inventory of BBY6502VH6327XTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BBY6502VH6327XTSA1 is usually 5 days.

3.What payment methods are accepted for BBY6502VH6327XTSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BBY6502VH6327XTSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BBY6502VH6327XTSA1?

BBY6502VH6327XTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BBY6502VH6327XTSA1 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 BBY6502VH6327XTSA1?

For technical support, including BBY6502VH6327XTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BBY6502VH6327XTSA1 requirements.

6.How does Aetrix verify that BBY6502VH6327XTSA1 is sourced from the original manufacturer or authorized distributors?

All BBY6502VH6327XTSA1 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 BBY6502VH6327XTSA1 meets industry standards.

7.What is the process for return or replacement of BBY6502VH6327XTSA1?

All BBY6502VH6327XTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BBY6502VH6327XTSA1, 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 BBY6502VH6327XTSA1 part is unused and in its original packaging.

Return procedure for BBY6502VH6327XTSA1:

1.Submit a request within 90 days.

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

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