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Diodes Incorporated BAT64SW-7-F
- Part No.:
- BAT64SW-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAT64SW-7-F.pdf
- Description:
- DIODE ARR SCHOT 40V 250MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:6,908
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Product details
Overview
BAT64SW-7-F from Diodes Incorporated is a surface-mount Schottky barrier diode in SOT323 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 a PN junction guard ring for transient protection and is AEC-Q101 qualified for automotive reliability. Used in low-voltage DC-DC converter output rectification and USB power path protection.
For engineers reviewing the BAT64SW-7-F datasheet, BAT64SW-7-F pinout, BAT64SW-7-F application, or BAT64SW-7-F equivalent, key selection criteria include its 3.0 ns reverse recovery time, 6.0 pF junction capacitance at 1 V, 2.0 µA max reverse leakage at 40 V, and thermal resistance of 625 °C/W on FR-4 board - critical for compact, high-efficiency power management designs.
Technical Context
This Schottky diode employs a low-barrier metal-semiconductor junction to achieve fast switching (tRR = 3.0 ns) and low conduction loss (VF = 430 mV typ. at 10 mA). Its guard-ringed structure enhances ESD and transient robustness without compromising speed.
Designed for operation from –65 °C to +150 °C, it delivers stable performance across automotive under-hood environments. The SOT323 package supports high-density PCB layouts with minimal parasitic inductance and capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Withstands up to 40 V reverse bias without breakdown; suitable for 24 V system rail clamping. |
| IO | 250 mA - Continuous DC output rectification capability; sufficient for USB 2.0/3.0 port power switches. |
| VF @ 100 mA | 750 mV max - Low conduction loss reduces heat generation in space-constrained power paths. |
| IR @ 40 V | 2.0 µA max - Minimal leakage preserves battery runtime in always-on circuits. |
| tRR | 3.0 ns - Enables high-frequency (>1 MHz) synchronous rectifier operation with low switching loss. |
| CT @ 1 V | 6.0 pF - Low junction capacitance minimizes signal distortion in RF detector or mixer applications. |
| RθJA | 625 °C/W - Thermal performance measured on standard FR-4 board; dictates derating above 25 °C ambient. |
Pinout & Package
Package: SOT323 - ultra-small plastic surface-mount case (2.15 mm × 2.10 mm × 0.95 mm), lead-free, RoHS-3 and AEC-Q101 qualified, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to higher-potential node (e.g., switcher output or supply rail); polarity marked by cathode band on package top view. |
| Cathode (Pin 2) | Forward current exit / reverse blocking terminal | Connected to load ground or lower-potential node; provides 40 V reverse blocking when biased negatively relative to anode. |
| Case / Pin 3 | No internal connection | Thermally conductive but electrically isolated tab; no circuit function - used only for mechanical anchoring and thermal relief. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | VF = 430 mV typ. at 10 mA - reduces conduction loss by >30% vs. standard silicon diodes in 3.3 V systems. |
| Fast switching speed | tRR = 3.0 ns - enables use in >5 MHz flyback snubbers and high-frequency buck converter freewheeling paths. |
| PN junction guard ring | Integrated transient protection structure - improves ESD robustness (HBM >8 kV) without external TVS components. |
| AEC-Q101 qualification | Validated for automotive temperature cycling, HTOL, and ESD stress - supports under-hood and infotainment power rails. |
Applications
| USB Power Switching | Automotive Sensor Biasing |
|---|---|
Use Scenario: Bidirectional power path control in USB-C dual-role ports with source/sink capability. IC Role / Device Role / Timing Role: Reverse polarity and overvoltage protection diode placed between VBUS and controller-side power switch. Use Value: 0.75 V max VF limits voltage drop during 5 V/3 A sourcing, preserving downstream regulation margin. | Use Scenario: Providing stable bias to Hall-effect or analog pressure sensors in engine control modules. IC Role / Device Role / Timing Role: Low-leakage clamp diode across sensor supply input to suppress load-dump transients. Use Value: 2.0 µA max IR prevents signal offset drift in µA-level bias networks at 125 °C ambient. |
| RF Signal Detection | Low-Power IoT Regulator Output |
Use Scenario: Envelope detection in sub-GHz ISM band receivers (e.g., 315/433 MHz remote keyless entry). IC Role / Device Role / Timing Role: Schottky detector diode in passive peak-detector front-end with 50 Ω input impedance. Use Value: 6.0 pF CT and 3.0 ns tRR support accurate demodulation up to 1 GHz with minimal phase distortion. | Use Scenario: Output rectification in 3.3 V/100 mA buck-boost converters powering BLE/Wi-Fi SoCs in battery-operated nodes. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in discontinuous conduction mode (DCM) topology. Use Value: 250 mA IO rating and 625 °C/W RθJA allow full-load operation at 70 °C ambient without heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54AWT1G | Same SOT-323 package; 30 V VRRM, 200 mA IO, 0.33 V VF typ. @ 10 mA - lower voltage rating, lower leakage (0.1 µA), but reduced surge capability. | Preferred for ≤3.3 V logic-supply rail clamping where ultra-low VF dominates over transient robustness. | Select when minimizing conduction loss below 10 mA is critical and 40 V blocking is unnecessary. |
| NSR0230HT1G | SOD-523 package (smaller); 30 V VRRM, 200 mA IO, 0.35 V VF typ. @ 10 mA - higher density, lower capacitance (4.5 pF), but no AEC-Q101 qualification. | Suitable for portable consumer PCBs where size and RF performance outweigh automotive reliability requirements. | Choose for space-constrained wearables or audio accessories requiring <0.4 V turn-on and <5 pF CT. |
Compared with SBAT54AWT1G and NSR0230HT1G, BAT64SW-7-F uniquely balances 40 V blocking, AEC-Q101 qualification, and guard-ring-enhanced transient immunity - making it the only option among the three validated for 12 V/24 V automotive power rail protection.
Availability
BAT64SW-7-F is available at Aetrix Electronics and suitable for USB power switching, automotive sensor biasing, RF signal detection, and low-power IoT regulator output applications requiring stable component supply across production lifecycles.
Supply support for BAT64SW-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 BAT64 series belongs to Diodes' high-reliability Schottky diode product line, engineered specifically for automotive and industrial power management where fast switching, low VF, and transient resilience are mandatory.
FAQ
What is the maximum junction temperature for BAT64SW-7-F?
The junction and storage temperature range is –65 °C to +150 °C. Maximum continuous operating junction temperature is +150 °C, supported by thermal derating curves showing 200 mW power dissipation at 25 °C ambient and linear reduction to zero at 150 °C ambient on FR-4 board.
Is BAT64SW-7-F suitable for reverse polarity protection in 24 V automotive systems?
Yes - with 40 V VRRM, it withstands ISO 7637-2 pulse 1 (–150 V/50 ms) when combined with appropriate series impedance, and its AEC-Q101 qualification confirms robustness against automotive temperature cycling, vibration, and humidity stress.
How does the PN junction guard ring improve reliability?
The guard ring reduces edge-field concentration at the semiconductor periphery, suppressing premature avalanche and improving ESD immunity (HBM >8 kV) and load-dump transient tolerance without increasing forward voltage or capacitance - verified per AEC-Q101 stress test conditions.
What is the typical forward voltage at 30 mA?
Per the datasheet's electrical characteristics table, VF is 520 mV max at IF = 30 mA and TA = +25 °C. Typical value is 430 mV at 10 mA and 480 mV at 30 mA, based on Figure 1 forward characteristic curves across temperature.
BAT64SW-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 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
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAT64SW-7-F FAQ
1.How can I place an order for BAT64SW-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT64SW-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 BAT64SW-7-F reliable?
The price and inventory of BAT64SW-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 BAT64SW-7-F is usually 5 days.
3.What payment methods are accepted for BAT64SW-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT64SW-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT64SW-7-F?
BAT64SW-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT64SW-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 BAT64SW-7-F?
For technical support, including BAT64SW-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT64SW-7-F requirements.
6.How does Aetrix verify that BAT64SW-7-F is sourced from the original manufacturer or authorized distributors?
All BAT64SW-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 BAT64SW-7-F meets industry standards.
7.What is the process for return or replacement of BAT64SW-7-F?
All BAT64SW-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAT64SW-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 BAT64SW-7-F part is unused and in its original packaging.
Return procedure for BAT64SW-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT64SW-7-F Tags
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