Infineon Technologies BAT 64-06 B5003

Overview

BAT64-06 from Nexperia is a silicon Schottky diode in SOT23 package configured as a common anode dual diode, rated for 40 V reverse voltage, 250 mA forward current, and 5 ns reverse recovery time, used for low-loss clamping and bias isolation in automotive sensor signal conditioning circuits.

For engineers reviewing the BAT64-06 datasheet, BAT64-06 pinout, BAT64-06 application, or BAT64-06 equivalent, key selection criteria include its common-anode dual configuration, 370 mV typical forward voltage at 30 mA, 4 pF diode capacitance at 1 V, AEC-Q101 qualification, and thermal resistance of ≤355 K/W (junction-to-soldering point).

Technical Context

This dual Schottky diode integrates a diffused guard ring to enhance voltage ruggedness and ESD robustness. Its common-anode topology enables simultaneous clamping of two signals to a shared reference rail while maintaining fast switching (trr ≤ 5 ns) and low conduction loss (VF ≤ 520 mV at 30 mA).

The device operates across –55 °C to 150 °C junction temperature range and is qualified to AEC-Q101 for automotive use. Thermal design must account for its ≤355 K/W junction-to-soldering-point thermal resistance under TS ≤ 61 °C derating conditions.

Key Specifications

Pinout & Package

SOT23 plastic surface-mount package with gull-wing leads; 3-terminal common-anode dual diode configuration; cathode terminals on pins 1 and 3, anode on pin 2; marking "66s" laser-etched on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NSS40201MR6T1G and VS-3EDH02-M3/86A, BAT64-06 uniquely delivers AEC-Q101 qualification, 40 V VR headroom, and integrated dual common-anode topology in SOT23-enabling compact, automotive-grade signal protection without layout or reliability trade-offs.

Availability

BAT64-06 is available at Aetrix Electronics and suitable for automotive sensor protection, portable meter input clamping, RF signal path isolation, and low-power bias supply isolation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BAT64-06 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

Nexperia is a global semiconductor expert delivering high-performance logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in high-volume applications.

The BAT64 series belongs to Nexperia's automotive-qualified Schottky diode product line, engineered specifically for signal integrity preservation and transient suppression in harsh-environment analog interfaces.

FAQ

What is the maximum allowable soldering temperature profile for BAT64-06?

The BAT64-06 uses a Pb-free RoHS-compliant package qualified to J-STD-020D moisture sensitivity level 1. Peak reflow temperature must not exceed 260 °C for ≤10 seconds, with ramp rates limited to ≤3 °C/s pre-peak and ≤6 °C/s post-peak. Hand-soldering requires iron tip temperature ≤350 °C and contact time <3 seconds per joint.

Does BAT64-06 support bidirectional transient suppression?

No-BAT64-06 is a unidirectional clamping device. Its common-anode configuration allows only negative-going transients on either cathode to be shunted to the anode rail. For bidirectional protection, it must be paired with a series resistor and/or complementary TVS diode referenced to ground.

How does the 355 K/W RthJS value impact PCB layout?

A RthJS of ≤355 K/W means the die-to-solder-joint thermal path is relatively high impedance. To maintain Tj ≤ 150 °C at 250 mA IF and 85 °C ambient, ≥25 mm² of 2-oz copper connected to pin 2 (anode) is required. Thermal vias under the pad improve performance but do not eliminate the need for adequate copper area.

Is BAT64-06 suitable for 100 MHz RF applications?

Yes-its 4 pF capacitance at 1 V and 5 ns reverse recovery enable effective clamping up to ~70–100 MHz. However, parasitic inductance from SOT23 leads (~1.8 nH) forms a resonant trap near 120 MHz; layout must minimize trace length and avoid resonant stubs when used above 50 MHz.