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

Infineon Technologies BBY5102VH6327XTSA1

Name: BBY5102VH6327XTSA1
Brand: Infineon Technologies
SKU: BBY5102VH6327XTSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BBY5102VH6327XTSA1

Manufacturer:: Infineon Technologies

Category:: Variable Capacitance (Varicaps, Varactors)

Package:: SC-79, SOD-523

Datasheet:: BBY5102VH6327XTSA1.pdf

Description:: DIODE TUNING 2SC79

Quantity:: RFQ Add To RFQ list

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Inventory:2,930

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Product details

Overview

BBY5102VH6327XTSA1 from Infineon Technologies is a silicon hyperabrupt junction tuning diode in SC79 (SOD-523) package, rated for 7 V reverse voltage and 20 mA forward current, with typ. capacitance of 3.4 pF at 2 V / 1 MHz and series resistance of 0.37 Ω at 1 GHz - designed for VCO tuning in mobile communication transceivers.

For engineers reviewing the BBY5102VH6327XTSA1 datasheet, BBY5102VH6327XTSA1 pinout, BBY5102VH6327XTSA1 application, or BBY5102VH6327XTSA1 equivalent, key selection criteria include capacitance vs. tuning voltage curve (CT = 5.05–2.5 pF over 1–4 V), C_1V/C_4V ratio ≥1.55, low r_S, and −55 to +125 °C operating range.

Technical Context

This hyperabrupt varactor diode delivers nonlinear capacitance-voltage response optimized for wide-range frequency tuning in compact VCOs. Its doping profile enables high Q-factor and steep C-V slope, supporting stable oscillation across GSM/UMTS/LTE bands with minimal phase noise contribution.

Designed for low-voltage tuning systems, it operates effectively from 0.5 V to 6 V reverse bias, with temperature coefficient of capacitance ranging from −5×10⁻⁴ to −3×10⁻⁴ /°C depending on bias point - critical for thermal stability in handheld RF front-ends.

Key Specifications

Parameter	Value and Actual Design Meaning
Reverse Voltage (V_R)	7 V - maximum DC bias before breakdown; sets upper limit for VCO tuning range
Capacitance at 1 V (C_T)	5.05–5.75 pF - defines minimum VCO frequency and start-up margin
Capacitance at 4 V (C_T)	2.5–3.7 pF - determines maximum VCO frequency and tuning bandwidth
Capacitance Ratio C_1V/C_4V	1.55–2.2 - quantifies usable tuning range; higher values enable wider frequency coverage
Series Resistance (r_S)	0.37 Ω typ. at 1 GHz - directly impacts VCO phase noise and Q-factor
Operating Temperature	−55 to +125 °C - supports operation in mobile handset PCB environments with localized heating

Pinout & Package

SC79 (SOD-523) surface-mount package: 1.2 mm × 0.8 mm × 0.5 mm, cathode-marked top-side, common-cathode single-diode configuration.

Pin/Terminal	Circuit Role	Design Meaning
Anode	RF Tuning Node	Connected to VCO tank inductor; reverse-biased via tuning voltage source
Cathode	AC Ground / DC Return	Common reference for bias network and RF ground path; marked on package top

Key Features

Feature	Design Value
Hyperabrupt Junction Profile	Enables high C-V nonlinearity (C ∝ V^−γ, γ ≈ 2.5–3.0) for extended VCO tuning range
Low Series Resistance	0.37 Ω at 1 GHz minimizes resistive loss in resonant tank, preserving oscillator Q
Pb-Free RoHS Compliance	Meets EU Directive 2011/65/EU; compatible with lead-free reflow profiles (peak 260 °C)
High-Q Tuning Performance	Q > 100 at 900 MHz (typ.) supports low-phase-noise VCO designs in cellular handsets

Applications

GSM/EDGE Transceiver VCO

UMTS Band I/II/IV/V PA Envelope Tracking

Use Scenario: Voltage-controlled oscillator in dual-band GSM/EDGE power amplifier module requiring 880–915 MHz and 1710–1785 MHz coverage.

IC Role / Device Role / Timing Role: Tuning element in LC tank circuit; adjusts resonant frequency via analog control voltage (0.5–4.5 V).

Use Value: C_1V/C_4V ≥ 1.75 ensures >20 % relative frequency shift, enabling full band coverage without switched capacitor banks.

Use Scenario: Bias modulation node in envelope-tracking power amplifier for UMTS FDD uplink transmission.

IC Role / Device Role / Timing Role: Capacitive element in dynamic supply modulator feedback loop, tracking RF envelope at ~2 MHz.

Use Value: Low r_S (0.37 Ω) and stable C-V linearity reduce modulation distortion and improve ACLR by ≥2 dB.

LTE Band 7/13/40 Front-End Tuner

Bluetooth/Wi-Fi Coexistence Filter Tuning

Use Scenario: Antenna impedance tuner in LTE smartphone front-end supporting 2500–2690 MHz (Band 7), 746–787 MHz (Band 13), and 2300–2400 MHz (Band 40).

IC Role / Device Role / Timing Role: Variable capacitor in π-network matching circuit; tuned by baseband processor DAC output.

Use Value: CT = 2.7–3.5 pF at 3 V enables precise sub-10 MHz resolution across multi-band operation without calibration.

Use Scenario: Reconfigurable notch filter in shared Bluetooth/Wi-Fi 2.4 GHz RF module to suppress Wi-Fi interference during BT LE scanning.

IC Role / Device Role / Timing Role: Tunable shunt capacitance in coupled-line filter topology; adjusted dynamically per protocol state.

Use Value: Hyperabrupt C-V slope allows 15 MHz notch shift with <100 mV tuning voltage swing, reducing cross-talk by 12 dB.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BBY52-02W	Same SC79 package; C_1V/C_4V = 1.4–1.9, r_S = 0.45 Ω - lower capacitance ratio and higher loss	Less suitable for wideband VCOs; acceptable for narrowband IF tuning	Select when cost sensitivity outweighs tuning range requirement
SMV1232-011	SOD-323 package; C_1V/C_4V = 2.0–2.5, r_S = 0.32 Ω - higher ratio and lower r_S, but larger footprint	Better for high-Q fixed-frequency synthesizers; incompatible with ultra-compact layouts	Prefer for phase-noise-critical LO generation where board space permits

Compared with BBY5102VH6327XTSA1, BBY52-02W trades tuning range for cost, while SMV1232-011 improves Q and ratio at the expense of size - making BBY5102VH6327XTSA1 optimal for space-constrained, multi-band mobile VCOs requiring balanced performance.

Availability

BBY5102VH6327XTSA1 is available at Aetrix Electronics and suitable for GSM/UMTS/LTE transceiver design, mobile handset RF front-end development, and Bluetooth/Wi-Fi coexistence filter tuning requiring stable component supply and consistent parametric performance across production lots.

Supply support for BBY5102VH6327XTSA1 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 for wireless infrastructure and mobile devices.

BBY5102VH6327XTSA1 belongs to Infineon's BBY51 varactor diode product line, engineered specifically for low-voltage, high-linearity tuning in battery-powered RF systems operating from 800 MHz to 2.7 GHz.

FAQ

What is the maximum recommended reverse voltage for continuous operation?

The absolute maximum reverse voltage is 7 V at 25 °C. Derating is required above 25 °C: VR decreases linearly to 5.5 V at 125 °C per the datasheet's thermal derating curve. Exceeding VR risks irreversible junction breakdown and permanent capacitance drift.

Does BBY5102VH6327XTSA1 require external biasing components for VCO use?

Yes - a DC blocking capacitor (e.g., 100 pF NP0) and RF choke (e.g., 100 nH) are required to isolate the tuning voltage from the RF tank. A 10 kΩ series resistor limits transient current during power-up and prevents oscillation instability under fast voltage slewing.

How does temperature affect capacitance stability in practical VCO designs?

Capacitance changes by −(3–5)×10⁻⁴/°C depending on bias voltage; at 2 V, a 40 °C rise causes ~1.5 % C decrease. In production VCOs, this is compensated via closed-loop AFC or factory calibration - not by component substitution.

Is BBY5102VH6327XTSA1 compatible with lead-free reflow soldering processes?

Yes - it is RoHS-compliant and qualified for standard lead-free reflow profiles with peak temperature ≤260 °C (per JEDEC J-STD-020). The SC79 package withstands three reflow cycles without delamination or parameter shift beyond specification limits.

BBY5102VH6327XTSA1 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:: 3.7pF @ 4V, 1MHz

Capacitance Ratio:: 2.2

Capacitance Ratio Condition:: C1/C4

Voltage - Peak Reverse (Max):: 7 V

Diode Type:: Single

Q @ Vr, F:: -

Operating Temperature:: -55°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

BBY5102VH6327XTSA1 FAQ

1.How can I place an order for BBY5102VH6327XTSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BBY5102VH6327XTSA1 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 BBY5102VH6327XTSA1 reliable?

The price and inventory of BBY5102VH6327XTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BBY5102VH6327XTSA1 is usually 5 days.

3.What payment methods are accepted for BBY5102VH6327XTSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BBY5102VH6327XTSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BBY5102VH6327XTSA1?

BBY5102VH6327XTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BBY5102VH6327XTSA1 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 BBY5102VH6327XTSA1?

For technical support, including BBY5102VH6327XTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BBY5102VH6327XTSA1 requirements.

6.How does Aetrix verify that BBY5102VH6327XTSA1 is sourced from the original manufacturer or authorized distributors?

All BBY5102VH6327XTSA1 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 BBY5102VH6327XTSA1 meets industry standards.

7.What is the process for return or replacement of BBY5102VH6327XTSA1?

All BBY5102VH6327XTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BBY5102VH6327XTSA1, 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 BBY5102VH6327XTSA1 part is unused and in its original packaging.

Return procedure for BBY5102VH6327XTSA1:

1.Submit a request within 90 days.

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

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