Infineon Technologies BAT6804E6327HTSA1

Overview

BAT6804E6327HTSA1 from Infineon Technologies is a silicon Schottky diode configured as a common-anode dual diode pair in SOT-23 package, rated for 8 V reverse voltage, 130 mA forward current, and 150 mW total power dissipation at TS ≤ 61°C, optimized for VHF/UHF mixer and high-speed switching applications.

For engineers reviewing the BAT6804E6327HTSA1 datasheet, BAT6804E6327HTSA1 pinout, BAT6804E6327HTSA1 application, or BAT6804E6327HTSA1 equivalent, key selection criteria include its 1 pF diode capacitance at VR = 0 V / f = 1 MHz, 10 Ω differential forward resistance at IF = 5 mA / f = 10 kHz, low 340 mV typical forward voltage at IF = 1 mA, and ESD-sensitive handling requirements.

Technical Context

This dual-diode configuration enables balanced signal routing in RF mixer topologies, where matched characteristics between the two anode-connected diodes support image-rejection and LO-to-RF isolation. Its low junction capacitance and fast recovery support operation up to UHF frequencies (≤1 GHz), as verified by rectifier voltage vs. input voltage measurements at 900 MHz.

The device operates with thermal resistance RthJS ≤ 590 K/W (BAT68-04/-06), requiring careful PCB copper area design for thermal management under continuous 130 mA load. Reverse leakage remains below 0.1 µA at VR = 1 V and TA = 25°C, ensuring low DC offset in detector circuits.

Key Specifications

Pinout & Package

Package: SOT-23 (standard 3-pin plastic surface-mount package, JEDEC TO-236AB compliant; dimensions per Infineon outline EHs BCW66, pin 1 marked).

Key Features

Applications

Equivalent & Alternatives

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

Compared with BAT6804E6327HTSA1, SKY13310-374LF offers superior high-frequency performance but lacks integrated dual symmetry, while BAR63-03W provides higher voltage tolerance at the cost of added layout complexity and mismatch risk in balanced circuits.

Availability

BAT6804E6327HTSA1 is available at Aetrix Electronics and suitable for UHF wireless microphone receivers, VHF FM broadcast tuners, and ISM band 433 MHz transceiver mixers requiring stable component supply, consistent parametric matching, and RoHS-compliant sourcing.

Supply support for BAT6804E6327HTSA1 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 GaAs RF components since the 1990s.

The BAT68 family targets RF front-end signal conditioning-specifically mixer, detector, and switch functions in consumer, industrial, and professional wireless equipment operating from VHF through low-UHF bands.

FAQ

Is BAT6804E6327HTSA1 suitable for 2.4 GHz WiFi applications?

No. Its 1 pF capacitance and 10 Ω series resistance are optimized for ≤1 GHz operation; measured rectifier voltage data shows significant degradation above 900 MHz. For 2.4 GHz, Infineon's BAP70-03 or Skyworks' SMS7630 offer lower CT (<0.25 pF) and higher frequency validation.

What is the recommended PCB pad layout for thermal reliability?

Use a minimum 2.5 × 2.5 mm thermal pad connected to internal ground plane via ≥4 thermal vias (0.3 mm diameter, 0.8 mm pitch). The SOT-23 footprint must follow Infineon's EHs BCW66 outline, with solder mask defined pads and 0.2 mm solder paste stencil aperture to prevent bridging on Pin 1–3.

Does this part require special ESD handling during assembly?

Yes. As an ESD-sensitive device (HBM Class 1B, <500 V), it requires grounded wrist straps, ionized air workstations, and conductive foam storage. PCB handling after reflow must avoid direct contact with Pins 2 and 3; automated pick-and-place nozzles must use low-static vacuum tips rated for Class 1B devices.

Can BAT6804E6327HTSA1 replace BAT68-04W in existing designs?

Yes, with identical SOT-23 package, common-anode configuration, and matching electrical specs (VR = 8 V, CT = 1 pF, VF = 340 mV). The "E6327HTSA1" suffix denotes tape-and-reel packaging per AEC-Q200-compliant manufacturing flow; no circuit-level redesign is needed.