Infineon Technologies BA 892-02V E6127

Overview

BA892-02V E6127 from Infineon Technologies is a silicon RF switching diode in SC79 package, configured as a single anode-cathode junction for high-frequency band switching. It delivers 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 - enabling use in TV/VTR tuner front-end antenna switching.

For engineers reviewing the BA892-02V E6127 datasheet, BA892-02V E6127 pinout, BA892-02V E6127 application, or BA892-02V E6127 equivalent, key selection criteria include RF insertion loss (<0.5 dB at 1.8 GHz), reverse voltage rating (35 V), thermal resistance (≤120 K/W), AEC-Q101 qualification, and SOD323-compatible footprint with cathode marking.

Technical Context

This diode operates as a voltage-controlled RF series switch: forward bias enables low-loss signal path (rf ≤ 0.45 Ω), reverse bias provides high isolation (ISO ≥ 23.5 dB @ 100 MHz). Its 3 µm I-region width and 120 ns charge carrier lifetime support fast switching in UHF bands up to 1.8 GHz.

Designed for DC–1.8 GHz operation, it uses a planar epitaxial structure with gold-metallized contacts. The SC79 package's low parasitic inductance (0.6 nH) and defined cathode orientation ensure repeatable RF performance in impedance-matched 50 Ω systems.

Key Specifications

Pinout & Package

BA892-02V E6127 is housed in SC79 - a 2-pin, surface-mount, leadless plastic package (1.3 mm × 0.7 mm × 0.5 mm) with cathode marked by laser etch on top surface. Pin 1 = Anode, Pin 2 = Cathode; polarity confirmed by datasheet outline and physical marking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BAR63-02W and BAV99,115, BA892-02V uniquely balances sub-1 GHz isolation, automotive qualification, and SC79 miniaturization - making it the default choice for tuner-grade band switching where thermal stability and regulatory compliance are mandatory.

Availability

BA892-02V E6127 is available at Aetrix Electronics and suitable for TV tuner front-ends, automotive digital radio modules, and mobile DVB-T receivers requiring stable component supply across extended temperature and long-lifecycle programs.

Supply support for BA892-02V E6127 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.

BA892-02V belongs to Infineon's RF Switching Diode product line, engineered specifically for high-isolation, low-loss band selection in broadcast receiver front-ends - emphasizing thermal robustness, small-signal linearity, and AEC-Q101 compliance.

FAQ

What is the maximum RF frequency range supported by BA892-02V E6127?

BA892-02V E6127 is characterized up to 1.8 GHz for insertion loss and isolation, with usable performance extending to 2.5 GHz. Measured data shows IL ≤ 0.5 dB and ISO ≥ 5.5 dB at 1 GHz, and CT remains below 1.4 pF up to 100 MHz - confirming suitability for UHF TV (470–862 MHz) and DVB-T applications.

Does BA892-02V E6127 require external bias circuitry for RF switching?

Yes - it requires a DC bias network to apply forward current (≥3 mA) for ON-state conduction or reverse voltage (≤35 V) for OFF-state isolation. A simple series resistor from 3.3 V or 5 V rail suffices; no active driver IC is needed due to its low IF requirement and absence of gate control.

How does the SC79 package affect PCB layout for RF performance?

The SC79 package minimizes parasitic inductance (0.6 nH) and enables tight 50 Ω microstrip routing. Its cathode-marked orientation mandates consistent placement; asymmetric pad design (anode pad slightly larger) improves thermal dissipation. Avoid vias under the die - use solid ground plane beneath the entire footprint.

Is BA892-02V E6127 compatible with lead-free reflow soldering processes?

Yes - it is RoHS-compliant and qualified for standard Pb-free reflow profiles (peak temperature 260 °C, 10 s max). The SC79 package withstands JEDEC J-STD-020D moisture sensitivity level 1, eliminating bake requirements prior to assembly.