Infineon Technologies BAT1504WH2110XTSA1

Overview

BAT1504WH2110XTSA1 from Infineon is a silicon RF Schottky diode pair in SOT323-3 package, configured as two series-connected N-type low-barrier diodes with on-chip guard ring for over-voltage protection. It delivers 0.25 V forward voltage at 10 mA, 0.3 pF junction capacitance at 1 MHz, and 1.4 nH series inductance-enabling high-frequency mixer and detector operation up to 12 GHz in radar and telematics systems.

For engineers reviewing the BAT1504WH2110XTSA1 datasheet, BAT1504WH2110XTSA1 pinout, BAT1504WH2110XTSA1 application, or BAT1504WH2110XTSA1 equivalent, key selection criteria include reverse voltage rating (4 V), forward voltage matching (≤20 mV), differential forward resistance (5.8 Ω), and thermal resistance (700 K/W) under DC operation at TS ≤ 80 °C.

Technical Context

This dual-diode configuration operates as a matched series pair optimized for RF signal rectification and frequency conversion. Its low barrier height enables sub-0.3 V turn-on, while integrated guard ring structure enhances ESD robustness and voltage transient tolerance beyond standard Schottky devices.

The device is characterized in test fixtures per JEDEC JESD22-A108, qualified for industrial temperature range (−55 °C to +150 °C), and exhibits stable C–V behavior (0.3–0.35 pF over 0–4 V VR) and I–V linearity (IF = 10–100 mA) critical for wideband detector linearity and LO leakage suppression.

Key Specifications

Pinout & Package

Package: SOT323-3 (2.0 mm × 2.1 mm × 0.9 mm), surface-mount, Pb-free/RoHS/halogen-free, marked "S8s".

Key Features

Applications

Equivalent & Alternatives

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

Compared with BAT1504WH2110XTSA1, the H6327 variant offers identical RF performance with bulk packaging advantages, while BAR63-04W trades off high-frequency capability and integrated protection for lower unit cost in sub-6 GHz applications.

Availability

BAT1504WH2110XTSA1 is available at Aetrix Electronics and suitable for radar front-ends, telematics transceivers, and industrial sensor interfaces requiring stable component supply across extended temperature ranges and high-frequency reliability.

Supply support for BAT1504WH2110XTSA1 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, automotive ICs, and RF components, with global R&D and manufacturing infrastructure.

The BAT15-04W series belongs to Infineon's RF Schottky diode product line, engineered specifically for high-linearity, low-parasitic mixing and detection in industrial and automotive radar systems up to 12 GHz.

FAQ

What is the maximum operating frequency for reliable mixer performance?

BAT1504WH2110XTSA1 supports stable mixer operation up to 12 GHz, validated by its 0.3 pF junction capacitance and 1.4 nH series inductance yielding favorable S-parameters in test fixtures. Performance beyond 12 GHz is limited by increasing series reactance and reduced isolation; actual usable bandwidth depends on PCB layout and matching network design.

Is this device suitable for zero-bias detector applications?

Yes - its low 0.25 V forward voltage at 10 mA and sub-6 Ω differential resistance enable effective zero- or low-bias RF detection. The matched diode pair architecture further supports balanced configurations that reject even-order harmonics and improve dynamic range in envelope detectors.

How does the on-chip guard ring affect ESD robustness?

The integrated guard ring increases junction breakdown margin and distributes electrostatic discharge current laterally, achieving HBM Class 2 (≥2 kV) per JEDEC JESD22-A114. This eliminates need for external TVS clamping in many RF front-end designs, reducing bill-of-materials and board space.

Can BAT1504WH2110XTSA1 replace BAT1504WH6327XTSA1 in existing designs?

Yes - both share identical die, electrical specifications, package, and marking. The only differences are reel size (1 k vs. 3 k) and date code formatting; no redesign, requalification, or layout change is required when substituting between these variants.