Infineon Technologies BBY5702VH6327XTSA1

Overview

BBY5702VH6327XTSA1 from Infineon Technologies is a hyperabrupt silicon tuning diode optimized for voltage-controlled oscillators (VCOs) in mobile communications equipment, featuring 18.6 pF capacitance at 1 V, 2.45 capacitance ratio (CT₁/CT₃), 0.35 Ω series resistance at 470 MHz, and operation up to 125°C.

For engineers reviewing the BBY5702VH6327XTSA1 datasheet, BBY5702VH6327XTSA1 pinout, BBY5702VH6327XTSA1 application, or BBY5702VH6327XTSA1 equivalent, key selection criteria include tuning linearity, Q-factor at RF frequencies, low-voltage capacitance control (1–4 V range), and AEC-Q101 qualification for automotive timing modules.

Technical Context

This diode implements a hyperabrupt junction profile to deliver near-linear C–V response across 1–4 V reverse bias, enabling stable frequency pulling in compact VCO designs. Its low series resistance (≤0.35 Ω) and high Q factor support efficient RF tank circuit operation at UHF bands.

The device is characterized at 1 MHz and 470 MHz, with capacitance specified from 1 V to 4 V, temperature coefficient of capacitance (TCC) ranging from –3×10⁻² to +1×10⁻² /°C depending on bias, and normalized capacitance variation ≤±4% over –30°C to +100°C at fixed VR.

Key Specifications

Pinout & Package

BBY5702VH6327XTSA1 is housed in SC79 (SOD-523) package: 1.2 mm × 0.8 mm × 0.55 mm, single-anode/single-cathode configuration, cathode marked by bar on terminal 2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BAR63-02V and SMV1232-011, BBY5702VH6327XTSA1 delivers superior VCO linearity and RF efficiency due to its hyperabrupt profile and 0.35 Ω r_S, making it optimal for high-performance mobile and automotive timing systems demanding tight phase noise and wide tuning bandwidth.

Availability

BBY5702VH6327XTSA1 is available at Aetrix Electronics and suitable for cellular front-end VCOs, automotive TCXO modules, 5G NR PLLs, and industrial wireless sensor nodes requiring stable component supply with full traceability and RoHS compliance.

Supply support for BBY5702VH6327XTSA1 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 electronics, with leadership in high-reliability discrete components and integrated systems.

BBY5702VH6327XTSA1 belongs to Infineon's BBY57 hyperabrupt tuning diode family, engineered specifically for low-voltage, high-linearity frequency control in mobile and automotive RF subsystems.

FAQ

What is the maximum recommended reverse voltage for continuous operation?

The absolute maximum reverse voltage is 10 V at 25°C. For reliable long-term operation in automotive environments, Infineon specifies derating to 8 V above 85°C ambient per the datasheet's thermal derating curve. Exceeding 10 V risks junction breakdown and irreversible capacitance drift.

Does BBY5702VH6327XTSA1 require a series current-limiting resistor in VCO bias networks?

Yes - a minimum 100 kΩ resistor is required between the tuning voltage source and the anode to limit forward leakage current to <100 nA at 3 V bias. This prevents DC loading of DAC outputs and avoids forward conduction that degrades Q and introduces harmonic distortion.

How does temperature affect capacitance stability in this diode?

At 1 V bias, capacitance varies by ≤±4% from –30°C to +100°C, with a temperature coefficient (TCC) of –3×10⁻² /°C at 1 V and +1×10⁻² /°C at 4 V. This bipolar TCC enables partial self-compensation in thermally balanced VCO layouts.

Is the SC79 package compatible with standard reflow profiles for lead-free assembly?

Yes - BBY5702VH6327XTSA1's SC79 package is qualified for IPC/JEDEC J-STD-020D-compliant lead-free reflow, with peak temperature up to 260°C for ≤30 seconds. The 0.55 mm height and copper-leadframe construction ensure uniform thermal transfer and minimal warpage.