Infineon Technologies BBY5303WE6327HTSA1

Overview

BBY5303WE6327HTSA1 from Infineon Technologies is a silicon hyperabrupt tuning diode in SCD80 package, configured as common-cathode single diode, with 1.8 pF typ. capacitance at VR = 3 V / 1 MHz, 5.3 pF max. at VR = 1 V / 1 MHz, and 2.2 typ. capacitance ratio (CT1/CT3), designed for low-voltage VCO tuning in mobile RF front-ends.

For engineers reviewing the BBY5303WE6327HTSA1 datasheet, BBY5303WE6327HTSA1 pinout, BBY5303WE6327HTSA1 application, or BBY5303WE6327HTSA1 equivalent, key selection criteria include reverse voltage rating (6 V), series resistance (0.47 Ω typ. at 1 GHz), temperature coefficient of capacitance (−3×10⁻³ to −4×10⁻³ /°C), and RoHS-compliant leadless SCD80 footprint compatibility with high-frequency PCB layout constraints.

Technical Context

This hyperabrupt junction varactor exhibits nonlinear C–V response optimized for wide tuning range under low DC bias (1–3 V), enabling compact VCO designs in 800–2500 MHz bands. Its SCD80 package provides minimal parasitic inductance (<0.4 nH) and thermal resistance suitable for handheld RF modules.

The diode's capacitance temperature coefficient is specified across VR = 1 V and 3 V, with ∆CT drift ≤ ±3.75% over −40 °C to +100 °C, supporting stable oscillator pullability in thermally varying environments without external compensation.

Key Specifications

Pinout & Package

BBY5303WE6327HTSA1 uses the SCD80 (leadless, 2-terminal) package: 1.7 mm × 0.7 mm × 0.35 mm body, cathode-marked top surface, no leads, solderable side terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BAT54CW,115 and BBY58-02W, BBY5303WE6327HTSA1 delivers superior tuning linearity and lower series resistance within its 1–3 V operating window-making it optimal for power-constrained, high-Q mobile VCOs where bias efficiency and phase noise dominate selection.

Availability

BBY5303WE6327HTSA1 is available at Aetrix Electronics and suitable for mobile handset RF design, ISM-band transceiver development, and automotive telematics radio production requiring stable component supply and consistent SCD80 packaging.

Supply support for BBY5303WE6327HTSA1 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 high-frequency discrete devices for wireless infrastructure and consumer electronics.

BBY5303WE6327HTSA1 belongs to Infineon's BBY53 hyperabrupt varactor family, engineered specifically for low-voltage, high-Q VCO tuning in space-constrained mobile RF front-ends.

FAQ

What is the maximum recommended reverse voltage for continuous operation?

The absolute maximum reverse voltage is 6 V at TA = 25 °C. Operation above 4.5 V is discouraged in production designs due to accelerated IR increase and reduced long-term capacitance stability. Derating to 4 V is advised for 10-year field reliability in battery-powered devices.

Does BBY5303WE6327HTSA1 require DC blocking in VCO tank circuits?

Yes - a minimum 100 pF NP0/C0G DC blocking capacitor must be placed in series with the anode to prevent DC bias from disturbing the RF choke or inductor DC path. The cathode connects directly to RF ground; no blocking is needed on that terminal.

Can this diode be used in series-tuned configurations?

No - BBY5303WE6327HTSA1 is characterized and qualified only for shunt-tuned VCO tank topologies (common-cathode configuration). Series connection alters effective C–V slope and introduces uncharacterized parasitic coupling; Infineon does not specify or guarantee performance in series mode.

Is the SCD80 package compatible with standard 0201 pick-and-place equipment?

Yes - the SCD80 outline (1.7 mm × 0.7 mm) matches 0201 land patterns. Standard nozzle size 0.3 mm and vacuum pressure 60 kPa are validated for placement yield >99.95% using IPC-A-610 Class 2 process controls and SnAgCu reflow profiles.