Infineon Technologies BAR6303WE6327HTSA1

Overview

BAR6303WE6327HTSA1 from Infineon Technologies is a silicon PIN diode optimized for high-speed RF signal switching in series configuration, featuring 0.3 pF capacitance at 1 MHz/5 V, 1.2 Ω forward resistance at 100 MHz/5 mA, and ≤0.11 dB insertion loss at 1.8 GHz/5 mA. It operates up to 3 GHz with 50 V reverse voltage rating and supports automotive-grade AEC-Q101 qualification.

For engineers reviewing the BAR6303WE6327HTSA1 datasheet, BAR6303WE6327HTSA1 pinout, BAR6303WE6327HTSA1 application, or BAR6303WE6327HTSA1 equivalent, key selection criteria include RF isolation performance at 0.9–2.45 GHz, low-IL switching in 50 Ω systems, thermal derating above 105 °C junction temperature, and SOD323 package compatibility with high-density RF layouts.

Technical Context

This PIN diode uses an intrinsic (I) region of 4.5 µm width to achieve low capacitance and fast carrier lifetime (75 ns), enabling sharp transition between low-loss conduction and high-isolation blocking states. Its series configuration supports bidirectional RF path control without polarity constraints.

Designed for DC-biased RF switching, it delivers stable 12.3 dB isolation at 1.8 GHz under zero-bias and maintains <0.15 dB insertion loss across 1–1.8 GHz at 1–10 mA forward bias - critical for cellular front-end modules and antenna tuning circuits.

Key Specifications

Pinout & Package

BAR6303WE6327HTSA1 is housed in a SOD323 plastic package with two terminals: anode and cathode. The device is configured in series topology, requiring external DC bias to switch RF signals along a single path.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMV1232-079LF and BAP64-03W, BAR6303WE6327HTSA1 offers the best balance of ultra-low insertion loss and automotive qualification in SOD323, making it optimal for cost-sensitive, high-volume LTE/WiFi front-end switching where consistent 0.11 dB IL is critical.

Availability

BAR6303WE6327HTSA1 is available at Aetrix Electronics and suitable for cellular front-end modules, automotive telematics antennas, and WiFi 6 band-selection circuits requiring stable component supply across production lifecycles.

Supply support for BAR6303WE6327HTSA1 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 R&D centers.

This device belongs to the BAR63 family of high-frequency PIN diodes engineered specifically for low-loss, high-isolation RF switching in compact SMD packages for wireless infrastructure and automotive connectivity systems.

FAQ

What is the maximum RF frequency supported by BAR6303WE6327HTSA1?

BAR6303WE6327HTSA1 is characterized up to 3 GHz per official Infineon documentation, with verified performance metrics including 12.3 dB isolation at 1.8 GHz and 10 dB isolation at 2.45 GHz. Its 0.3 pF capacitance and 1.2 Ω forward resistance sustain usable RF switching behavior within this band, though optimal insertion loss (<0.15 dB) is specified at 1.8 GHz.

Does BAR6303WE6327HTSA1 require external DC blocking capacitors?

No - BAR6303WE6327HTSA1 operates in series configuration with DC bias applied directly across anode and cathode. Its design eliminates the need for external DC blocking capacitors in the RF path, reducing component count and parasitic effects in high-frequency layouts.

How does thermal resistance affect derating in BAR6303WE6327HTSA1?

With R_thJS = 380 K/W (SOD323), power dissipation must be reduced above ambient temperatures where junction temperature exceeds 105 °C. At 85 °C ambient, maximum continuous forward current drops to ~60 mA to maintain T_j ≤ 150 °C - confirmed by Infineon's IF vs. T_S curves for BAR63-04…-06 variants.

Can BAR6303WE6327HTSA1 be used in common-anode or common-cathode configurations?

No - BAR6303WE6327HTSA1 is a single-diode element in series configuration (not dual or common-terminal). It lacks internal common-anode/cathode structure; alternative part numbers like BAR63-04W or BAR63-05W are required for those topologies.