Infineon Technologies BA 892 L6327

Overview

BA892 L6327 from Infineon Technologies is a silicon RF switching diode in SC79 package, configured as a single anode-cathode junction, with 0.45 Ω typical forward resistance at 3 mA/100 MHz, 0.65–1.4 pF capacitance (1 MHz–100 MHz), and 23.5 dB isolation at 100 MHz - used for band switching in TV/VTR tuners and mobile RF front-end modules.

For engineers reviewing the BA892 L6327 datasheet, BA892 L6327 pinout, BA892 L6327 application, or BA892 L6327 equivalent, key selection criteria include RF insertion loss (<0.5 dB at 1.8 GHz), reverse voltage rating (35 V), junction temperature limit (150 °C), and RoHS-compliant leadless SMD packaging.

Technical Context

This diode operates as a voltage-controlled RF switch in series configuration, leveraging low-charge-carrier lifetime (120 ns) and narrow I-region width (3 µm) to enable fast switching and minimal distortion in VHF/UHF signal paths. Its low forward resistance and sub-pF capacitance support high-efficiency signal routing below 2 GHz.

The device is qualified per AEC-Q101, indicating suitability for automotive-grade RF subsystems where thermal stability (−55 °C to +125 °C operating range) and robustness against RF stress are required. Reverse parallel resistance exceeds 100 kΩ at 100 MHz, ensuring low leakage in OFF-state isolation.

Key Specifications

Pinout & Package

SC79 package: ultra-small surface-mount, leadless, 2-terminal diode with cathode marked by bar. Dimensions: 1.3 mm × 0.7 mm × 0.4 mm (L × W × H), 0.8 mm pitch, tape-and-reel (3,000 pcs/reel, 2 mm pitch).

Key Features

Applications

Equivalent & Alternatives

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

Compared with BAR63-02W and BA892-02L, BA892 L6327 offers optimal balance of low-cost SC79 packaging, validated AEC-Q101 reliability, and sufficient RF performance for sub-2 GHz tuner and mobile front-end switching - making it preferred for volume consumer and automotive infotainment applications.

Availability

BA892 L6327 is available at Aetrix Electronics and suitable for TV tuner design, mobile RF front-end development, and automotive telematics module production requiring stable component supply and full traceability.

Supply support for BA892 L6327 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 global manufacturing and quality certification to ISO/TS 16949 and AEC standards.

The BA892 series belongs to Infineon's high-speed RF switching diode product line, engineered specifically for low-loss, high-isolation signal routing in broadcast, mobile, and automotive RF subsystems.

FAQ

What is the maximum RF frequency supported by BA892 L6327?

BA892 L6327 maintains usable RF switching performance up to 2 GHz, with documented insertion loss ≤0.5 dB at 1.8 GHz and isolation ≥5.5 dB at 1 GHz. Performance beyond 2 GHz degrades due to package parasitics and junction capacitance limitations - verified via S-parameter measurements in series configuration with 50 Ω system impedance.

Does BA892 L6327 require external bias circuitry?

Yes - BA892 L6327 is a passive PIN diode requiring DC forward bias (typically 3–10 mA) to achieve low on-resistance, and reverse bias (≥5 V) to maximize off-state isolation. No integrated bias controller is present; external current-limiting resistor or active bias network must be implemented per application note AN2011-07-21.

Is BA892 L6327 pin-compatible with BA892-02L?

No - BA892 L6327 uses SC79 package (1.3 × 0.7 mm), while BA892-02L uses TSLP-2-1 (1.0 × 0.6 mm) with different pad layout and 0.4 nH internal inductance. Footprint and solder stencil are not interchangeable; PCB redesign is required for substitution.

What is the thermal resistance (RthJS) of BA892 L6327?

BA892 L6327 has a junction-to-soldering-point thermal resistance (RthJS) of ≤120 K/W, measured per JEDEC JESD51-14. This value assumes standard reflow profile and 2-layer FR-4 PCB with 10 mm² copper pour under the SC79 pad - enabling continuous 100 mA forward current operation within 150 °C junction limit at 85 °C ambient.