Infineon Technologies BAR6304WH6327XTSA1

Overview

BAR6304WH6327XTSA1 from Infineon Technologies is a silicon PIN diode optimized for high-speed RF signal switching in series configuration, featuring 0.3 pF capacitance at 5 V/1 MHz, 1.2 Ω forward resistance at 5 mA/100 MHz, and insertion loss of 0.11 dB at 1.8 GHz - deployed in cellular front-end modules and antenna tuning circuits.

For engineers reviewing the BAR6304WH6327XTSA1 datasheet, BAR6304WH6327XTSA1 pinout, BAR6304WH6327XTSA1 application, or BAR6304WH6327XTSA1 equivalent, key selection criteria include RF isolation at 1.8 GHz (12.3 dB), reverse voltage rating (50 V), thermal resistance (380 K/W), and SOD323 package compatibility with high-frequency PCB layout constraints.

Technical Context

This PIN diode operates as a voltage-controlled RF switch where forward bias reduces series impedance (<1.2 Ω) for low-loss signal path conduction, while reverse bias maximizes off-state isolation (>12 dB at 1.8 GHz) via ultra-low junction capacitance (≤0.3 pF). Its I-region width of 4.5 µm enables fast carrier lifetime (75 ns) and stable performance up to 3 GHz.

The device uses a single-diode, leadless SOD323 package with anode and cathode terminals configured for series RF path insertion. Thermal design requires attention to junction-to-soldering-point resistance (380 K/W), limiting continuous forward current to 100 mA at ≤55 °C case temperature.

Key Specifications

Pinout & Package

SOD323 (SC-76) surface-mount package: 1.7 mm × 1.3 mm × 0.9 mm, leadless, single-diode configuration with anode and cathode on opposite ends.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BAR6304WH6327XTSA1, SMV1232-079LF trades marginally higher capacitance for reduced forward voltage, while BAP64-03W delivers lower on-resistance at the cost of higher leakage - both require layout review for thermal pad adaptation and bias network recalibration.

Availability

BAR6304WH6327XTSA1 is available at Aetrix Electronics and suitable for cellular front-end modules, automotive telematics systems, and Wi-Fi 6/6E access points requiring stable component supply and RoHS-compliant sourcing.

Supply support for BAR6304WH6327XTSA1 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 global manufacturing and quality certification to ISO/TS 16949 and AEC standards.

The BAR63 family targets high-frequency RF switching applications, designed specifically for 3G/4G/5G front-end architectures where low capacitance, fast switching, and thermal robustness are essential.

FAQ

What is the maximum RF frequency supported by BAR6304WH6327XTSA1?

The device is characterized up to 3 GHz per datasheet specifications, with verified isolation and insertion loss performance at 1.8 GHz and 2.45 GHz. At 3 GHz, capacitance remains ≤0.3 pF and forward resistance stays below 2 Ω, supporting practical use in LTE Band 42/43 and unlicensed 5 GHz ISM bands.

Can BAR6304WH6327XTSA1 be used in shunt configuration?

No - the BAR63-04 variant is specified only for series configuration per datasheet Figure 1 and electrical test conditions. Shunt use would violate its thermal derating limits and degrade isolation due to parasitic inductance mismatch in the SOD323 package layout.

Does BAR6304WH6327XTSA1 require external bias circuitry?

Yes - it requires a DC bias network (typically 1–10 kΩ series resistor and RF choke) to apply forward current (5–10 mA typical) or reverse voltage (≥5 V) for switching. No integrated bias controller is present; external control is mandatory for RF path state selection.

Is the SOD323 package compatible with standard reflow profiles?

Yes - the Pb-free SOD323 package complies with IPC/JEDEC J-STD-020D Level 1 moisture sensitivity and supports peak reflow temperatures up to 260 °C. Recommended profile includes ramp rate ≤3 °C/s, soak at 150–200 °C for 60–120 s, and time above liquidus (TAL) of 60 ± 10 s.