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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Nexperia USA Inc. BAT720-QVL

Name: BAT720-QVL
Brand: Nexperia USA Inc.
SKU: BAT720-QVL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BAT720-QVL

Manufacturer:: Nexperia USA Inc.

Category:: Single Diodes

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BAT720-QVL.pdf

Description:: DIODE SCHOTTKY 40V 500MA TO236AB

Quantity:: RFQ Add To RFQ list

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Inventory:4,977

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Product details

Overview

BAT720-Q from Nexperia is a planar Schottky barrier diode with integrated guard ring for stress protection, housed in an SOT23 (TO-236AB) package. It delivers 40 V reverse voltage rating, 550 mV forward voltage at 500 mA, 100 µA reverse leakage at 35 V, 90 pF capacitance at 0 V, and supports ultra-high-speed switching in automotive power rail clamping.

For engineers reviewing the BAT720-Q datasheet, BAT720-Q pinout, BAT720-Q application, or BAT720-Q equivalent, key selection criteria include low VF for efficiency-critical 12 V automotive systems, AEC-Q101 qualification, SOT23 footprint compatibility, and reverse polarity protection capability in battery-connected modules.

Technical Context

This Schottky diode uses a planar silicon structure with an integrated guard ring to enhance ruggedness against transient overvoltage and ESD stress-critical for automotive environments. Its low junction capacitance (60–90 pF) and fast recovery enable clean signal integrity in line termination and high-frequency clamping.

The device operates across –55 °C to +125 °C ambient, with a maximum junction temperature of 125 °C and thermal resistance R_th(j-a) = 500 K/W on standard FR4 PCB. It sustains non-repetitive surge current up to 2 A (10 ms square wave), supporting robust load dump immunity.

Key Specifications

Parameter	Value and Actual Design Meaning
Reverse Voltage (V_R)	40 V - Maximum continuous blocking voltage before breakdown; suitable for 24 V automotive systems with margin.
Forward Voltage (V_F)	550 mV @ 500 mA - Low conduction loss reduces heat generation in high-duty-cycle clamping circuits.
Reverse Current (I_R)	100 µA @ 35 V, 25 °C - Enables low standby power in reverse polarity protection paths.
Diode Capacitance (C_d)	60–90 pF @ 0 V, 1 MHz - Minimizes signal distortion in high-speed data line termination (e.g., CAN FD stubs).
Thermal Resistance (R_th(j-a))	500 K/W - Defines junction-to-ambient rise per watt; requires careful PCB copper area planning for >100 mW dissipation.
Surge Current (I_FSM)	2 A @ 10 ms - Withstands automotive load dump transients without failure when used with appropriate series impedance.

Pinout & Package

Encapsulated in a surface-mount SOT23 (TO-236AB) plastic package measuring 2.9 mm × 1.3 mm × 1.0 mm with 1.9 mm lead pitch. The package features gull-wing leads compatible with standard reflow and wave soldering footprints.

Pin/Terminal	Circuit Role	Design Meaning
1 (A)	Anode	Positive terminal for forward conduction; connects to higher-potential node in clamping or polarity protection path.
2 (n.c.)	Not Connected	Internally isolated; must remain unconnected on PCB to avoid parasitic coupling or mechanical stress.
3 (K)	Cathode	Negative terminal; ties to ground or lower-potential rail in reverse polarity protection or voltage clamp configurations.

Key Features

Feature	Design Value
Guard ring integration	Enhances ESD and transient voltage ruggedness without external components-reduces system-level TVS count in infotainment power rails.
AEC-Q101 qualification	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing-enables direct use in ASIL-B subsystems without additional qualification.
Low forward voltage	550 mV max at rated current ensures <100 mW conduction loss at 500 mA-critical for thermally constrained ECUs.
Small SOT23 footprint	2.9 mm × 1.3 mm body enables dense placement near connectors or battery inputs where space is constrained.

Applications

Ultra-High-Speed Switching

Voltage Clamping

Use Scenario: High-frequency DC-DC converter freewheeling path in ADAS camera modules.

IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss return path during MOSFET off-time; switching frequency >1 MHz.

Use Value: 550 mV V_F minimizes conduction loss and thermal rise in compact 5 V/2 A buck regulators.

Use Scenario: Clamp transient spikes on 12 V supply rail during alternator load dump events.

IC Role / Device Role / Timing Role: Shunt clamping element limiting rail voltage to ≤40 V during 100 ms surges.

Use Value: 2 A I_FSM rating allows single-device handling of ISO 7637-2 Pulse 5a without parallel devices.

Line Termination

Reverse Polarity Protection

Use Scenario: RS-485 or CAN FD bus stub termination in vehicle gateway ECUs.

IC Role / Device Role / Timing Role: AC-coupled termination diode absorbing reflections while preserving DC bias.

Use Value: 90 pF C_d maintains signal edge integrity up to 5 Mbps without excessive capacitive loading.

Use Scenario: Input protection for telematics control units powered directly from vehicle battery.

IC Role / Device Role / Timing Role: Series-blocking diode preventing damage during accidental battery reversal.

Use Value: 100 µA I_R at 35 V ensures <1 µW standby loss-preserves battery life over multi-year deployment.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor NSR0230P2T5G	30 V V_R, 450 mV V_F @ 200 mA, SOD-523 package (1.2 × 0.8 mm)	Lower voltage rating limits use to 5 V/12 V logic rails only; smaller footprint restricts thermal mass.	Select when board space is critical and system max voltage ≤24 V; verify surge margin with external TVS.
Vishay VS-2EDH02HM3/85A	45 V V_R, 570 mV V_F @ 500 mA, SOT-23 package, AEC-Q101 qualified	Nearly identical electrical specs but higher V_F and no guard ring; slightly lower IR (50 µA @ 35 V)	Acceptable drop-in replacement where guard ring is not required; confirm layout robustness against ESD in final design.

Compared with BAT720-Q, the NSR0230P2T5G trades voltage margin for size and lower V_F, while the VS-2EDH02HM3/85A matches voltage rating and qualification but lacks integrated guard ring-requiring tighter layout controls for equivalent stress resilience.

Availability

BAT720-Q is available at Aetrix Electronics and suitable for automotive power management, infotainment system protection, and ADAS sensor module clamping requiring stable component supply and AEC-Q101 compliance.

Supply support for BAT720-Q 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 focused on high-volume, high-reliability discrete and logic devices, with core expertise in automotive-qualified components and advanced packaging.

The BAT720-Q belongs to Nexperia's AEC-Q101-qualified Schottky diode product line, engineered specifically for automotive power rail protection, reverse polarity safeguarding, and high-speed signal integrity in harsh-temperature environments.

FAQ

Is BAT720-Q suitable for 24 V automotive systems?

Yes. Its 40 V reverse voltage rating provides 67 % margin above nominal 24 V systems, and its AEC-Q101 qualification covers extended temperature operation (–55 °C to +125 °C) and transient stress testing required for under-hood applications.

What is the significance of the guard ring in BAT720-Q?

The integrated guard ring improves edge termination robustness, raising the device's resistance to localized electric field crowding during voltage transients and ESD events-reducing risk of premature breakdown in automotive environments with frequent load dumps and electrostatic discharge.

Can BAT720-Q replace BAT54 in existing designs?

No. BAT54 has 30 V V_R and higher V_F (~900 mV); BAT720-Q offers 40 V rating, lower V_F (550 mV), AEC-Q101 qualification, and guard ring-making it unsuitable as a direct drop-in unless layout and thermal design accommodate its different electrical and reliability profile.

How does the n.c. pin affect PCB layout?

Pin 2 is internally unconnected and must remain unattached on the PCB. Routing traces or placing solder paste on this pad risks mechanical stress, solder bridging, or unintended coupling-Nexperia specifies zero connection to ensure long-term reliability and parameter stability.

BAT720-QVL Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 40 V

Current - Average Rectified (Io):: 500mA

Voltage - Forward (Vf) (Max) @ If:: 550 mV @ 500 mA

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 100 µA @ 35 V

Capacitance @ Vr, F:: 90pF @ 0V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

Operating Temperature - Junction:: 125°C

BAT720-QVL FAQ

1.How can I place an order for BAT720-QVL through Aetrix?

Please submit a Request for Quotation (RFQ) for BAT720-QVL 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 BAT720-QVL reliable?

The price and inventory of BAT720-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT720-QVL is usually 5 days.

3.What payment methods are accepted for BAT720-QVL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT720-QVL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BAT720-QVL?

BAT720-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BAT720-QVL 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 BAT720-QVL?

For technical support, including BAT720-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT720-QVL requirements.

6.How does Aetrix verify that BAT720-QVL is sourced from the original manufacturer or authorized distributors?

All BAT720-QVL 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 BAT720-QVL meets industry standards.

7.What is the process for return or replacement of BAT720-QVL?

All BAT720-QVL units undergo pre-shipment inspection (PSI). If there is an issue with BAT720-QVL, 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 BAT720-QVL part is unused and in its original packaging.

Return procedure for BAT720-QVL:

1.Submit a request within 90 days.

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

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