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

Diodes Incorporated BAT64Q-7-F

Name: BAT64Q-7-F
Brand: Diodes Incorporated
SKU: BAT64Q-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BAT64Q-7-F

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

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

Datasheet:: BAT64Q-7-F.pdf

Description:: SCHOTTKY DIODE SOT23 T&R 3K

Quantity:: RFQ Add To RFQ list

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Inventory:4,432

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Product details

Overview

BAT64Q-7-F from Diodes Incorporated is a surface-mount Schottky barrier diode in SOT23 package, rated for 40 V peak reverse voltage, 250 mA average forward current, and 0.75 V max forward voltage at 100 mA. It features PN junction guard ring for transient protection and is AEC-Q101 qualified for automotive use.

For engineers reviewing the BAT64Q-7-F datasheet, BAT64Q-7-F pinout, BAT64Q-7-F application, or BAT64Q-7-F equivalent, key selection criteria include low VF at low-to-moderate forward currents (350 mV @ 1 mA), fast 3.0 ns reverse recovery time, 6.0 pF capacitance at 1 V, and IATF16949-certified manufacturing for mission-critical automotive subsystems.

Technical Context

This Schottky diode operates with metal–semiconductor junction architecture to achieve low turn-on voltage and minimal minority-carrier storage. Its guard ring structure suppresses edge breakdown under transient overvoltage conditions, enhancing reliability in noisy automotive environments.

It delivers stable performance across −55°C to +150°C junction temperature range, with thermal resistance of 500°C/W (junction-to-ambient, FR-4 board). Power dissipation is derated linearly above +25°C ambient, reaching zero at +150°C per Figure 4.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	40 V - Maximum repetitive reverse blocking voltage before avalanche onset; defines safe operating range in clamping or rectification circuits.
I_O	250 mA - Continuous DC forward current rating; determines usable load-handling capacity in power rail OR-ing or signal demodulation.
V_F Max	0.75 V @ 100 mA - Upper bound of forward drop; enables efficient low-voltage operation in battery-powered systems.
t_RR	3.0 ns - Measured reverse recovery time; supports high-frequency switching up to ~100 MHz in RF detector or sampling applications.
C_T	6.0 pF @ 1 V - Junction capacitance at low bias; critical for minimizing signal distortion in RF mixer or antenna tuning circuits.
I_R Max	2.0 µA @ 40 V - Maximum leakage under full-rated reverse bias; ensures low standby power loss in always-on automotive modules.

Pinout & Package

Package: SOT23 - 3-pin surface-mount plastic package (2.9 mm × 1.3 mm × 1.0 mm), moisture sensitivity level 1, matte tin-plated alloy 42 leadframe, UL 94V-0 compliant molding compound.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Pin 1)	Forward current entry point	Connected to higher-potential node in rectifier or clamp; polarity marked by cathode band on top view.
Cathode (Pin 2)	Forward current exit / reverse-blocking terminal	Internally connected to guard ring; ties to ground or lower-potential rail for ESD/EMI suppression.
No-connect (Pin 3)	Unused internal lead	Electrically isolated; no bonding wire attached; must remain unconnected in PCB layout.

Key Features

Feature	Design Value
Low forward voltage	350 mV @ 1 mA - Reduces conduction loss in low-current sensing paths and improves efficiency in energy-harvesting interfaces.
Guard ring protection	Integrated PN junction ring - Prevents premature edge breakdown during load dump or ISO 7637-2 pulse transients in automotive ECUs.
AEC-Q101 qualification	Qualified per stress test schedule including HTGB, TCT, HTRB - Enables use in safety-relevant body control modules without additional component-level qualification.
Green packaging	Halogen- and antimony-free, RoHS 3 compliant - Meets EU ELV Directive and OEM sustainability requirements for Tier 1 automotive supply chain.

Applications

Automotive Body Control Module

USB Port Protection Circuit

Use Scenario: Reverse polarity and load dump protection in door module power input stage.

IC Role / Device Role / Timing Role: Schottky clamp diode placed between battery rail and LDO input to absorb 12 V system transients.

Use Value: 3.0 ns t_RR and guard ring ensure fast response to ISO 7637-2 Pulse 5a (load dump), limiting voltage overshoot to <45 V.

Use Scenario: Overvoltage clamping on USB VBUS line against hot-plug surges.

IC Role / Device Role / Timing Role: Low-capacitance (6.0 pF) Schottky shunt diode tied to 5.1 V reference for fast transient suppression.

Use Value: Sub-1 ns effective response enables compliance with USB 2.0 eye diagram mask under ±1 kV ESD (IEC 61000-4-2).

RF Signal Detector

Low-Power Sensor Node Power OR-ing

Use Scenario: Envelope detection in 2.4 GHz ISM-band receiver front-end.

IC Role / Device Role / Timing Role: Passive demodulator diode in crystal radio-style detector circuit with LC tank.

Use Value: 350 mV V_F @ 1 mA enables reliable detection of sub-100 µW RF signals without external bias.

Use Scenario: OR-ing two coin-cell sources (CR2032 and energy harvester) in wearable medical sensor.

IC Role / Device Role / Timing Role: Low-V_F Schottky diode isolating dual power inputs to prevent backfeed and maximize runtime.

Use Value: 0.43 V V_F @ 10 mA minimizes voltage drop, preserving >2.9 V system rail under 150 µA sleep current.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SBAT54LT1G	Higher V_F (0.8 V @ 100 mA), same SOT23 package, 30 V V_RRM	Limited to ≤30 V systems; less suitable for 42 V mild-hybrid architectures	Select when cost sensitivity outweighs 10 V reverse margin and 50 mV V_F penalty.
NSR0230HT1G	Lower I_O (200 mA), same V_RRM, 0.5 V V_F @ 10 mA	Not AEC-Q101 qualified; lacks guard ring; unsuitable for automotive production	Prefer only in non-automotive consumer designs where ultra-low V_F at microamp bias is critical.

Compared with SBAT54LT1G and NSR0230HT1G, BAT64Q-7-F uniquely combines AEC-Q101 qualification, 40 V reverse rating, and guard ring protection-making it the only option qualified for front-end power conditioning in ASIL-B automotive modules without derating or supplemental protection.

Availability

BAT64Q-7-F is available at Aetrix Electronics and suitable for automotive body control modules, USB port protection circuits, RF signal detectors, and low-power sensor node power OR-ing requiring stable component supply and full traceability.

Supply support for BAT64Q-7-F 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The BAT64Q series belongs to Diodes' automotive-qualified Schottky diode product line, engineered specifically for robust transient immunity and low-loss power management in vehicle electronic control units and infotainment systems.

FAQ

What is the maximum junction temperature for BAT64Q-7-F?

The absolute maximum junction temperature is +150°C, with storage temperature matching this range. Derating begins at +25°C ambient, reducing power dissipation linearly to zero at +150°C, as shown in Figure 4 of DS45354 Rev. 5-2.

Is BAT64Q-7-F suitable for high-frequency RF applications?

Yes-its 6.0 pF capacitance at 1 V and 3.0 ns reverse recovery time enable use in 2.4 GHz envelope detection and harmonic mixing. Performance is validated in Diodes' application note AN-45354-1 for ISM-band receiver front-ends.

Does BAT64Q-7-F require special PCB layout considerations?

Yes-use the recommended SOT23 pad layout from Diodes' package outline document (PN: SOT23-3-1), including thermal relief for Pin 2 (cathode) and isolation of Pin 3 (NC). Avoid soldermask-defined pads to prevent tombstoning during reflow.

How is AEC-Q101 qualification verified for BAT64Q-7-F?

Qualification is confirmed per DS45354 Rev. 5-2 Section 1.3: testing includes HTGB (1000 hrs @ 150°C), temperature cycling (−55°C to +150°C, 1000 cycles), and HTRB (1000 hrs @ 125°C, 40 V bias), all performed in IATF16949-certified facilities.

BAT64Q-7-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

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):: 250mA

Voltage - Forward (Vf) (Max) @ If:: 750 mV @ 100 mA

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

Reverse Recovery Time (trr):: 3 ns

Current - Reverse Leakage @ Vr:: 2 µA @ 40 V

Capacitance @ Vr, F:: 6pF @ 1V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

Operating Temperature - Junction:: -65°C ~ 150°C

BAT64Q-7-F FAQ

1.How can I place an order for BAT64Q-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for BAT64Q-7-F 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 BAT64Q-7-F reliable?

The price and inventory of BAT64Q-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT64Q-7-F is usually 5 days.

3.What payment methods are accepted for BAT64Q-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT64Q-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BAT64Q-7-F?

BAT64Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BAT64Q-7-F 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 BAT64Q-7-F?

For technical support, including BAT64Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT64Q-7-F requirements.

6.How does Aetrix verify that BAT64Q-7-F is sourced from the original manufacturer or authorized distributors?

All BAT64Q-7-F 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 BAT64Q-7-F meets industry standards.

7.What is the process for return or replacement of BAT64Q-7-F?

All BAT64Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAT64Q-7-F, 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 BAT64Q-7-F part is unused and in its original packaging.

Return procedure for BAT64Q-7-F:

1.Submit a request within 90 days.

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

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