Infineon Technologies BBY5202LE6327XTMA1

Overview

BBY5202LE6327XTMA1 from Infineon Technologies is a silicon hyperabrupt tuning diode optimized for low-voltage VCO tuning in mobile communication systems, featuring 7 V reverse voltage rating, 1.4–2.2 pF capacitance at 1 V–4 V reverse bias (f = 1 MHz), 0.9–1.7 Ω series resistance at 1 GHz, and AEC-Q101 qualification for automotive-grade reliability.

For engineers reviewing the BBY5202LE6327XTMA1 datasheet, BBY5202LE6327XTMA1 pinout, BBY5202LE6327XTMA1 application, or BBY5202LE6327XTMA1 equivalent, key selection criteria include capacitance vs. voltage slope (CT1/CT4 ≥ 1.6), Q-factor suitability for 800 MHz–2.5 GHz VCOs, thermal stability across −55 °C to +150 °C, and SCD80 leadless package compatibility with high-density RF PCB layouts.

Technical Context

This hyperabrupt junction varactor diode delivers a nonlinear C–V response engineered to linearize VCO frequency versus tuning voltage, enabling precise phase-locked loop (PLL) control in compact transceivers. Its low series resistance (<1.7 Ω at 1 GHz) and high Q-factor minimize phase noise degradation in oscillator tank circuits.

The device operates under reverse bias only, with capacitance tunable from 2.2 pF (VR = 1 V) to 0.85 pF (VR = 4 V) at 1 MHz - a 2.6:1 ratio supporting wideband frequency synthesis. Reverse leakage remains ≤10 nA at VR = 6 V and TA = 25 °C, ensuring stable bias point integrity.

Key Specifications

Pinout & Package

BBY5202LE6327XTMA1 uses the SCD80 (TSLP-2-1) leadless surface-mount package: 1.3 mm × 0.7 mm × 0.35 mm body, cathode-marked top side, solderable copper terminals on both ends. Thermal resistance R_thJA ≈ 220 K/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BAR63-02W and SMV1232-011, BBY5202LE6327XTMA1 uniquely balances ultra-low r_S, AEC-Q101 validation, and SCD80 miniaturization - making it optimal for space-constrained, thermally demanding automotive VCOs where phase noise and long-term bias stability are critical.

Availability

BBY5202LE6327XTMA1 is available at Aetrix Electronics and suitable for cellular transceiver design, automotive telematics modules, GNSS receiver development, and industrial wireless sensor node production requiring stable component supply and full traceability.

Supply support for BBY5202LE6327XTMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive microcontrollers, RF components, and security ICs, with global R&D and manufacturing facilities.

BBY5202LE6327XTMA1 belongs to Infineon's high-frequency tuning diode product line, developed specifically for low-phase-noise VCOs in mobile and automotive wireless systems requiring robust thermal and reliability performance.

FAQ

What is the maximum recommended reverse voltage for continuous operation?

The absolute maximum reverse voltage is 7 V at TA = 25 °C. Operation above 6 V is discouraged in production designs due to accelerated IR drift and reduced long-term reliability. Derating to ≤5.5 V is recommended for 15-year automotive applications per AEC-Q101 lifetime models.

Can BBY5202LE6327XTMA1 be used in forward bias?

No - this device is strictly a reverse-biased varactor diode. Forward conduction degrades junction integrity and causes irreversible capacitance shift. The datasheet specifies zero forward current rating; any forward bias >0.3 V must be avoided in layout and bias network design.

How does temperature affect capacitance tuning linearity?

Capacitance decreases ~0.12%/°C over −55 °C to +150 °C, with CT1/CT4 ratio varying by <±0.2 across the range. For precision VCOs, temperature-compensated bias networks or digital calibration are required to maintain f–V linearity beyond ±25 °C ambient swings.

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

Yes - the SCD80 (1.3 × 0.7 mm) footprint matches 0201 land patterns. However, its 0.35 mm height and lack of side chamfers require nozzle vacuum pressure ≥45 kPa and vision system calibration for centroid detection. Reflow profile must follow IPC-J-STD-020D for moisture sensitivity level 1.