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Infineon Technologies BAT5403WE6327HTSA1

Part No.:
BAT5403WE6327HTSA1
Manufacturer:
Infineon Technologies
Category:
Single Diodes
Package:
SC-76, SOD-323
Datasheet:
AetrixBAT5403WE6327HTSA1.pdf
Description:
DIODE SCHOTT 30V 200MA SOD323-2
Quantity:
Payment:
Payment
Shipping:
Shipping

Inventory:14,293

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Product details

Overview

BAT5403WE6327HTSA1 from Infineon Technologies is a silicon Schottky diode in SOD-323 package configured as a single discrete device, rated for 30 V reverse voltage, 200 mA forward current, and 5 ns reverse recovery time, with low 400 mV forward voltage at 10 mA - used for clamping and bias isolation in automotive sensor signal conditioning circuits.

For engineers reviewing the BAT5403WE6327HTSA1 datasheet, BAT5403WE6327HTSA1 pinout, BAT5403WE6327HTSA1 application, or BAT5403WE6327HTSA1 equivalent, key selection criteria include its AEC-Q101 qualification, 10 pF capacitance at 1 V, thermal resistance of ≤117 °C/W (junction-to-soldering point), and guaranteed 2 µA max reverse leakage at 25 V.

Technical Context

This Schottky diode employs a guard ring–protected planar structure to suppress edge breakdown and ensure stable reverse characteristics across temperature. Its low forward voltage drop and fast 5 ns recovery support high-efficiency clamping in low-voltage analog front-ends.

The device operates with junction temperatures up to 150 °C and is specified for use on epoxy PCBs with 40 × 40 × 1.5 mm copper area. Thermal resistance RthJS is ≤117 °C/W, enabling reliable operation under sustained 200 mA DC load at elevated ambient temperatures.

Key Specifications

ParameterValue and Actual Design Meaning
Reverse Voltage (VR)30 V - supports rail-to-rail clamping in 24 V automotive systems without breakdown.
Forward Current (IF)200 mA continuous - sufficient for biasing op-amp input protection networks.
Reverse Recovery Time (trr)5 ns - enables clean transient suppression in MHz-range signal paths.
Forward Voltage (VF)400 mV at 10 mA - minimizes power loss and self-heating in low-power sensor interfaces.
Diode Capacitance (CT)10 pF at 1 V - preserves bandwidth in high-impedance feedback or signal routing nodes.
Reverse Leakage (IR)2 µA max at 25 V - ensures negligible error current in precision bias or reference circuits.
Junction Temp (Tj)150 °C - meets under-hood automotive thermal requirements per AEC-Q101.

Pinout & Package

Package: SOD-323 - surface-mount plastic case, 1.7 mm × 1.25 mm footprint, gull-wing leads, RoHS-compliant, Pb-free.

Pin/TerminalCircuit RoleDesign Meaning
Anode (A)Current entry nodeConnected to higher-potential side during forward conduction; defines polarity for clamping direction.
Cathode (K)Current exit nodeInternally tied to PCB ground or reference rail; forms low-impedance sink path during overvoltage events.

Key Features

FeatureDesign Value
Guard ring protectionPrevents premature edge breakdown, ensuring stable VR rating across manufacturing lot and temperature.
AEC-Q101 qualifiedValidated for automotive applications including engine control, body electronics, and ADAS sensor modules.
Low thermal resistanceRthJS ≤117 °C/W enables 200 mA operation at TS ≤122 °C without derating.
Pb-free & RoHS compliantMeets EU Directive 2011/65/EU; compatible with lead-free reflow profiles (peak 260 °C).

Applications

Automotive Sensor Signal ClampingUSB Port ESD Protection

Use Scenario: Protecting analog outputs of pressure or temperature sensors exposed to load-dump transients in 12 V vehicle networks.

IC Role / Device Role: Low-capacitance shunt clamp limiting voltage excursions to ≤30 V while preserving signal integrity.

Use Value: 5 ns trr and 10 pF CT prevent signal distortion during fast transients; 400 mV VF avoids loading sensor output impedance.

Use Scenario: Secondary-level ESD protection on USB 2.0 D+ and D− lines before the transceiver IC.

IC Role / Device Role: Fast-turn-on Schottky clamp diverting IEC 61000-4-2 ±8 kV contact discharge energy away from sensitive PHY inputs.

Use Value: 2 µA IR at 25 V prevents DC leakage that would shift common-mode voltage; SOD-323 footprint fits tight board spacing near connectors.

Low-Voltage Bias IsolationPower Rail OR-ing Diode

Use Scenario: Isolating dual-supply bias networks in instrumentation amplifiers to prevent backfeed between reference and signal paths.

IC Role / Device Role: Unidirectional blocking element maintaining independent DC operating points across adjacent analog sections.

Use Value: 30 V VR headroom accommodates supply tolerance and ripple; 200 mA IF supports typical bias currents up to 100 µA with margin.

Use Scenario: OR-ing two 3.3 V backup supplies in industrial PLC I/O modules to maintain uptime during single-rail failure.

IC Role / Device Role: Low-loss series diode enabling automatic source selection with minimal forward drop penalty.

Use Value: 400 mV VF at 10 mA reduces power dissipation by >60% versus standard PN diodes, lowering thermal stress on PCB traces.

Equivalent & Alternatives

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

Alternative PartTechnical DifferenceApplication DifferenceSelection Advice
NSR0230HT1GSame SOD-323 package; 30 V VR, 200 mA IF, but 600 mV VF at 10 mA and 15 pF CT.Higher VF increases power loss in battery-powered bias networks; higher CT degrades high-frequency transient response.Select when cost sensitivity outweighs performance in non-critical clamping roles.
BAT54CWS-E3-08Common-cathode dual configuration in SOD-323; identical VR, IF, and VF, but shares cathode terminal between two anodes.Enables dual-rail clamping (e.g., RS-485 bus) in same footprint; not suitable for single-diode isolation tasks.Select only when dual-channel functionality is required and layout allows shared cathode routing.

Compared with NSR0230HT1G and BAT54CWS-E3-08, BAT5403WE6327HTSA1 delivers superior high-speed clamping (5 ns vs. ≥10 ns) and lower parasitic capacitance (10 pF vs. 15 pF), making it optimal for precision analog and automotive signal integrity applications where timing and leakage matter.

Availability

BAT5403WE6327HTSA1 is available at Aetrix Electronics and suitable for automotive sensor interface design, USB port protection, low-voltage bias isolation, and power rail OR-ing requiring stable component supply and AEC-Q101 compliance.

Supply support for BAT5403WE6327HTSA1 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 electronics, and industrial control ICs and discrete devices.

BAT5403WE6327HTSA1 belongs to the BAT54 family of Schottky diodes engineered specifically for high-reliability automotive and industrial signal conditioning - emphasizing low VF, fast trr, and robust thermal performance in compact packages.

FAQ

Is BAT5403WE6327HTSA1 AEC-Q101 qualified?

Yes. The BAT5403WE6327HTSA1 is explicitly qualified to AEC-Q101 standards for stress testing, including high-temperature operating life, temperature cycling, and humidity bias. This certification is documented in Infineon's official BAT54 product release dated June 2011 and applies to the -03W variant in SOD-323 packaging.

What is the maximum junction temperature and how does it relate to PCB layout?

The maximum junction temperature is 150 °C. To achieve this, the device must be mounted on an epoxy PCB with a minimum 40 × 40 × 1.5 mm copper area (6 cm²). Thermal resistance from junction to soldering point is ≤117 °C/W, so proper copper pour and via stitching beneath the cathode pad are essential to maintain safe operating temperature at full 200 mA load.

Can BAT5403WE6327HTSA1 replace BAT54W in existing designs?

No - BAT54W uses SOT-323 packaging and has different thermal resistance (≤110 °C/W) and power dissipation profile. While both share 30 V/200 mA ratings, the SOD-323 (BAT5403WE6327HTSA1) has higher RthJS (≤117 °C/W) and lower Ptot derating above 71 °C ambient. Footprint and solder mask geometry also differ, requiring layout revision.

Does this diode support bidirectional ESD protection?

No. BAT5403WE6327HTSA1 is a unidirectional Schottky diode with defined anode and cathode terminals. For bidirectional ESD protection (e.g., USB data lines), a dedicated TVS array or back-to-back Schottky pair is required. Its 30 V reverse rating and 2 µA leakage at 25 V make it suitable only for unidirectional clamping toward ground or supply rails.

BAT5403WE6327HTSA1 Specifications

Product attributes
Attribute value
Manufacturer:
Infineon Technologies
Series:
-
Package/Case:
SC-76, SOD-323
Packaging:
Tape & Reel (TR)
Product Status:
Active
Technology:
Schottky
Voltage - DC Reverse (Vr) (Max):
30 V
Current - Average Rectified (Io):
200mA
Voltage - Forward (Vf) (Max) @ If:
800 mV @ 100 mA
Speed:
Small Signal =< 200mA (Io), Any Speed
Reverse Recovery Time (trr):
5 ns
Current - Reverse Leakage @ Vr:
2 µA @ 25 V
Capacitance @ Vr, F:
10pF @ 1V, 1MHz
Grade:
-
Qualification:
-
Mounting Type:
Surface Mount
Supplier Device Package:
PG-SOD323-3D
Operating Temperature - Junction:
150°C (Max)

BAT5403WE6327HTSA1 FAQ

1.How can I place an order for BAT5403WE6327HTSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BAT5403WE6327HTSA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for BAT5403WE6327HTSA1 reliable?

The price and inventory of BAT5403WE6327HTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT5403WE6327HTSA1 is usually 5 days.

3.What payment methods are accepted for BAT5403WE6327HTSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT5403WE6327HTSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BAT5403WE6327HTSA1?

BAT5403WE6327HTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BAT5403WE6327HTSA1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for BAT5403WE6327HTSA1?

For technical support, including BAT5403WE6327HTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT5403WE6327HTSA1 requirements.

6.How does Aetrix verify that BAT5403WE6327HTSA1 is sourced from the original manufacturer or authorized distributors?

All BAT5403WE6327HTSA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BAT5403WE6327HTSA1 meets industry standards.

7.What is the process for return or replacement of BAT5403WE6327HTSA1?

All BAT5403WE6327HTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BAT5403WE6327HTSA1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The BAT5403WE6327HTSA1 part is unused and in its original packaging.

Return procedure for BAT5403WE6327HTSA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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