Infineon Technologies BBY5302WH6327XTSA1

Overview

BBY5302WH6327XTSA1 from Infineon Technologies is a silicon hyperabrupt tuning diode in SCD80 (SC-79) package, configured as a common-cathode single diode. It delivers 4.8–5.8 pF capacitance at 1 V reverse bias, 1.85–3.1 pF at 3 V, with CT1/CT3 ratio ≥1.8 and series resistance ≤0.47 Ω at 1 GHz - optimized for VCO tuning in mobile RF front-ends.

For engineers reviewing the BBY5302WH6327XTSA1 datasheet, BBY5302WH6327XTSA1 pinout, BBY5302WH6327XTSA1 application, or BBY5302WH6327XTSA1 equivalent, key selection criteria include low-voltage tuning capability (VR ≤ 6 V), high Q-factor at 1 GHz, temperature-stable capacitance (TCC ≈ −3×10⁻³/°C at 1 V), and RoHS-compliant leadless packaging for space-constrained 3G/4G transceivers.

Technical Context

This hyperabrupt junction varactor exhibits a nonlinear C–V curve engineered to maximize frequency tuning range per volt in voltage-controlled oscillators. Its low series resistance (rS ≤ 0.47 Ω) and high capacitance ratio (CT1/CT3 ≥ 1.8) enable wideband VCO designs with improved phase noise performance below 3 GHz.

The diode operates across −55 °C to +125 °C with IR ≤ 10 nA at VR = 4 V/25 °C and ≤ 200 nA at 85 °C, supporting stable tuning in thermally demanding portable RF modules. Temperature coefficient of capacitance is −3.0×10⁻³/°C at VR = 1 V, enabling predictable drift compensation.

Key Specifications

Pinout & Package

BBY5302WH6327XTSA1 uses the SCD80 (SC-79) surface-mount package: 1.3 mm × 0.7 mm body, 0.35 mm height, cathode marked by laser dot on top surface. It is a two-terminal device with no internal connection between terminals beyond the PN junction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BBY5302WH6327XTSA1, BBY58-02W offers superior high-frequency Q and wider tuning ratio but at higher cost; SMV1232-011 trades package size for higher baseline capacitance, easing low-band VCO design but limiting thermal/power handling in dense layouts.

Availability

BBY5302WH6327XTSA1 is available at Aetrix Electronics and suitable for cellular transceiver tuning, ISM band VCO calibration, and automotive keyless entry FOBs requiring stable component supply with guaranteed long-term traceability.

Supply support for BBY5302WH6327XTSA1 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.

BBY5302WH6327XTSA1 belongs to Infineon's BBY53 hyperabrupt varactor family, designed specifically for low-voltage, high-Q tuning in miniaturized mobile communication VCOs and frequency synthesizers.

FAQ

What is the maximum recommended reverse voltage for continuous operation?

The absolute maximum reverse voltage is 6 V at TA = 25 °C. Derating is required above 25 °C: VR decreases linearly to 4.5 V at 125 °C per Infineon's derating curve. Exceeding VR risks junction breakdown and irreversible capacitance shift, especially after thermal cycling.

How does temperature affect capacitance stability in practical VCO designs?

At VR = 1 V, TCC is −3.0×10⁻³/°C; at VR = 3 V, it is −2.2×10⁻³/°C. Over −40 °C to +85 °C, total capacitance drift is ≤ ±2.25% - manageable via closed-loop AFC or pre-compensated bias voltage in production firmware.

Can BBY5302WH6327XTSA1 be used in series or parallel configurations?

It is a single common-cathode diode and not internally structured for series/parallel use. Parallel connection requires matched units and thermal coupling to avoid current imbalance; series use is impractical due to unequal voltage division and lack of isolation. Standard practice uses one device per tuning node.

Is the SCD80 package compatible with standard reflow profiles for lead-free assembly?

Yes - the SCD80 package is qualified for IPC/JEDEC J-STD-020D MSLE Level 1 and supports peak reflow temperatures up to 260 °C for ≤60 seconds. The leadless terminations exhibit excellent wetting with SAC305 paste and show no voiding or tombstoning in validated 0201-class stencil apertures.