Infineon Technologies BAT1505WE6327HTSA1

Overview

BAT1505WE6327HTSA1 from Infineon Technologies is a silicon Schottky diode optimized for DBS mixer applications up to 12 GHz, phase detectors, and modulators. It features low barrier height, 0.23 V typical forward voltage at 10 mA, 0.32 V max at 10 mA, 5.5 Ω typical differential forward resistance, and 0.35–0.5 pF capacitance at 0 V/1 MHz - enabling high-frequency RF signal routing in satellite receiver front-ends.

For engineers reviewing the BAT1505WE6327HTSA1 datasheet, BAT1505WE6327HTSA1 pinout, BAT1505WE6327HTSA1 application, or BAT1505WE6327HTSA1 equivalent, key selection criteria include RF insertion loss at 12 GHz, thermal resistance (RthJS ≤ 850 K/W), junction temperature limit (150 °C), and low-noise figure suitability for LNB downconversion stages.

Technical Context

This diode operates as a low-barrier Schottky detector/mixer element with nonlinear I–V characteristics tailored for RF demodulation and frequency translation. Its 0.35–0.5 pF capacitance and 5.5 Ω differential resistance support impedance matching in 50 Ω microwave circuits up to 12 GHz.

The SOT323 package provides leadless single-diode configuration with 1.4 nH series inductance, enabling stable RF performance without bond-wire parasitics. Thermal design is constrained by RthJS ≤ 850 K/W and maximum power dissipation of 100 mW at TA = 25 °C.

Key Specifications

Pinout & Package

SOT323 package: surface-mount, leadless, single-diode configuration with anode and cathode terminals on opposite sides of the molded body; 1.4 nH series inductance inherent to internal structure.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky diode detector/mixer applications.

Compared with BAT1505WE6327HTSA1, HSMS-2850-BLKG trades 12 GHz capability for broader availability, while BAT64-02W offers better thermal performance but sacrifices Ku-band matching due to higher capacitance.

Availability

BAT1505WE6327HTSA1 is available at Aetrix Electronics and suitable for direct broadcast satellite (DBS) receivers, phase-locked loop (PLL) subsystems, RF modulators, and high-speed telemetry demodulators requiring stable component supply across extended temperature ranges.

Supply support for BAT1505WE6327HTSA1 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 leadership in silicon and SiC device innovation.

BAT1505WE6327HTSA1 belongs to Infineon's high-frequency Schottky diode product line, engineered specifically for microwave detection, mixing, and modulation in satellite, radar, and test equipment applications.

FAQ

Is BAT1505WE6327HTSA1 suitable for zero-bias detector operation?

Yes. With 0.16 V typical forward voltage at 1 mA and low differential resistance (5.5 Ω), it delivers usable output voltage at RF input powers as low as −20 dBm without external DC bias - confirmed in Infineon's application note AN2011-06 for LNB front-end designs.

What is the maximum RF input power this diode can handle continuously?

At 25 °C ambient, continuous RF power handling is limited by 100 mW total power dissipation and 150 °C junction temperature. For 12 GHz operation with 5.5 Ω RF resistance, this corresponds to ~40 mW incident RF power before thermal runaway - derating required above 70 °C board temperature.

Does this part require special PCB layout considerations for 12 GHz use?

Yes. Maintain 50 Ω microstrip impedance within ±5% tolerance, minimize stub length to <0.5 mm, place DC blocking caps within 1 mm of the anode/cathode pads, and use solid ground plane beneath the SOT323 footprint to suppress parasitic resonance from the 1.4 nH series inductance.

How does the 0.35–0.5 pF capacitance affect impedance matching at 12 GHz?

At 12 GHz, 0.4 pF presents ~33 Ω capacitive reactance, forming a shunt path that must be neutralized using series inductance or embedded tuning stubs. Matching networks typically employ λ/4 open-circuit stubs or lumped LC elements to transform 50 Ω to the diode's complex impedance (≈5.5 + j33 Ω).