Infineon Technologies BBY5305WE6327HTSA1

Overview

BBY5305WE6327HTSA1 from Infineon Technologies is a silicon hyperabrupt tuning diode optimized for VCOs in mobile communications equipment, featuring 1.8–2.6 capacitance ratio (CT1/CT3), 4.8–5.8 pF capacitance at 1 V reverse bias, and 0.47 Ω series resistance at 1 GHz - enabling low-voltage tuning with high Q performance.

For engineers reviewing the BBY5305WE6327HTSA1 datasheet, BBY5305WE6327HTSA1 pinout, BBY5305WE6327HTSA1 application, or BBY5305WE6327HTSA1 equivalent, key selection criteria include reverse voltage rating (6 V), temperature coefficient of capacitance (±3.75 % over –40 to +100 °C), and SCD80 package compatibility with high-frequency RF layout constraints.

Technical Context

This hyperabrupt junction varactor exhibits nonlinear C–V response engineered to maximize frequency tuning range per volt in compact VCO designs. Its low series resistance (0.47 Ω typ.) and high capacitance ratio support wideband operation while minimizing phase noise degradation in 800 MHz–2.5 GHz transceivers.

The diode's common-cathode configuration and SCD80 leadless package enable direct integration into impedance-matched microstrip tuning networks. Temperature coefficient data confirms stable capacitance drift (≤ ±3.75 %) across –40 to +100 °C, critical for handheld RF front-end reliability.

Key Specifications

Pinout & Package

SCD80 - ultra-compact, leadless surface-mount package (1.3 × 0.7 × 0.35 mm) with cathode-marked top-side laser marking; optimized for RF layout density and thermal dissipation in space-constrained mobile modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BBY5305WE6327HTSA1, BBY55-02W trades tuning range for lower-frequency coverage, while SMV1232-011 sacrifices Q and thermal stability for higher voltage tolerance - making the BBY5305WE6327HTSA1 optimal for compact, battery-powered mobile RF front-ends demanding high ratio and low rS.

Availability

BBY5305WE6327HTSA1 is available at Aetrix Electronics and suitable for cellular transceiver tuning, Wi-Fi VCO design, and Bluetooth LE frequency synthesis requiring stable component supply across high-mix, low-volume production runs.

Supply support for BBY5305WE6327HTSA1 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.

The BBY53 series belongs to Infineon's high-Q tuning diode product line, engineered specifically for mobile communication VCOs where low-voltage operation, high capacitance ratio, and thermal stability are mandatory.

FAQ

What is the maximum recommended reverse voltage for continuous operation?

The BBY5305WE6327HTSA1 has a rated maximum reverse voltage (VR) of 6 V at 25 °C. Operation above this value risks irreversible junction breakdown or accelerated IR drift. Derating to 4.5 V is advised for designs operating above 85 °C ambient or requiring >10-year field reliability.

How does the capacitance ratio (CT1/CT3) impact VCO tuning linearity?

A higher CT1/CT3 ratio (up to 2.6) indicates greater relative capacitance change between 1 V and 3 V bias, enabling wider frequency deviation per volt. However, hyperabrupt profiles inherently yield non-linear C–V curves - requiring digital calibration or lookup tables in closed-loop PLL systems to maintain channel accuracy.

Can BBY5305WE6327HTSA1 be used in DC-coupled tuning configurations?

No - the device must be AC-coupled in the tuning path. Direct DC connection risks forward conduction during transient events or bias miscalibration, causing irreversible anode-to-cathode leakage increase. A series RF choke or blocking capacitor (≥100 pF) is mandatory to isolate DC bias from the resonant tank.

Is the SCD80 package compatible with standard 0201 reflow profiles?

Yes - the SCD80 footprint (1.3 × 0.7 mm) aligns with IPC-7351B 0201 land patterns. Its MSL1 rating permits exposure to peak reflow temperatures up to 260 °C for ≤60 seconds without preconditioning, matching standard lead-free solder profiles used for mobile RF modules.