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Diodes Incorporated BAT54AW-7-F
- Part No.:
- BAT54AW-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAT54AW-7-F.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:65,883
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Product details
Overview
BAT54AW-7-F from Diodes Incorporated is a surface-mount Schottky barrier diode in SOT323 package, rated for 30 V peak reverse voltage, 200 mA continuous forward current, and 320 mV max forward voltage at 1 mA. It serves as a freewheeling or blocking diode in DC-DC converters and reverse polarity protection circuits.
For engineers reviewing the BAT54AW-7-F datasheet, BAT54AW-7-F pinout, BAT54AW-7-F application, or BAT54AW-7-F equivalent, key selection criteria include low VF for efficiency-critical 3.3 V/5 V rail clamping, fast 5 ns reverse recovery for high-frequency switching nodes, and SOT323 footprint compatibility with space-constrained PCB layouts.
Technical Context
This Schottky diode uses a platinum-silicide (PtSi) or similar low-barrier metal-semiconductor junction to achieve low forward voltage and fast switching. Its guard-ringed PN structure enhances ESD robustness without compromising speed.
Designed for operation from −65 °C to +125 °C, it maintains stable leakage (<2 µA at 25 V) and capacitance (10 pF at 1 V) across temperature, supporting reliable performance in automotive-grade power rails and industrial SMPS feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum reverse blocking capability for 24 V system inputs and flyback clamp applications |
| IF | 200 mA - Continuous forward current rating suitable for low-power signal path and bias rail protection |
| VF Max | 320 mV @ 1 mA - Enables minimal conduction loss in low-current sensing and logic-level clamping |
| IR Max | 2.0 µA @ 25 V - Ensures negligible leakage in battery-backed circuits and high-impedance monitoring nodes |
| tRR | 5.0 ns - Supports switching frequencies up to ~70 MHz in snubberless flyback and synchronous rectifier assist roles |
| CT | 10 pF @ 1 V, 1 MHz - Low junction capacitance minimizes signal distortion in RF detector and high-speed data line clamping |
| RθJA | 625 °C/W - Thermal resistance requires minimal copper pour for thermal management in ambient ≤85 °C environments |
Pinout & Package
Package: SOT323 - ultra-small 3-pin surface-mount plastic package (2.0 × 2.2 mm footprint, 0.9 mm height), lead-free, RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to higher-potential node in reverse polarity protection or cathode-side clamp configuration |
| Cathode (Pin 2) | Forward current exit / reverse blocking terminal | Typically tied to ground or low-side switch node; defines polarity-sensitive orientation on PCB |
| No-connect (Pin 3) | Internal die attach pad (non-functional) | Electrically isolated; may be left floating or grounded for mechanical stability-no electrical role |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | 320 mV max at 1 mA enables <10 mW conduction loss in 3.3 V I/O rail clamping |
| Fast switching speed | 5 ns reverse recovery supports >10 MHz PWM edge integrity in synchronous buck auxiliary diodes |
| PN junction guard ring | ESD protection per IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) without external TVS |
| Ultra-small SOT323 package | 0.006 g weight and 2.0 × 2.2 mm footprint allow placement adjacent to QFN MCU pins or BGA ballouts |
Applications
| DC-DC Converter Freewheeling | Reverse Polarity Protection |
|---|---|
Use Scenario: Used as a low-loss freewheeling diode in non-synchronous buck regulators powering FPGA I/O banks. IC Role / Device Role / Timing Role: Provides current recirculation path during high-side MOSFET off-time; operates at 500 kHz–2 MHz switching frequency. Use Value: 320 mV VF reduces conduction loss by ~40% vs. standard silicon diodes, improving light-load efficiency by 2–3%. | Use Scenario: Placed in series with VIN to protect downstream PMICs from accidental reversed battery connection. IC Role / Device Role / Timing Role: Acts as a series-blocking element; conducts only when polarity is correct, blocking reverse current above 25 V. Use Value: 2 µA max leakage ensures <1 µA standby drain on Li-ion coin cells, extending shelf life beyond 10 years. |
| Signal Line Clamping | USB Data Line ESD Protection |
Use Scenario: Clamp diode on 1.8 V GPIO lines interfacing with external sensors in industrial PLC modules. IC Role / Device Role / Timing Role: Shunts transient overvoltage to VCC or GND; responds within nanoseconds to ESD events. Use Value: 10 pF capacitance avoids signal integrity degradation on 10 Mbps digital lines; guard ring sustains >8 kV contact ESD. | Use Scenario: Integrated into USB 2.0 upstream port circuitry to suppress ESD on D+ and D− lines before USB transceiver input. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp (anode-to-GND, cathode-to-VCC) meeting USB-IF ESD requirements. Use Value: Dual BAT54AW-7-F devices per line provide ±15 kV air-gap ESD immunity while adding <20 ps propagation delay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54DW-7-F | Dual-channel version in same SOT323 package; shared cathode configuration | Required where two independent clamping paths share common return (e.g., RS-485 A/B lines) | Select when dual-anode/single-cathode topology matches PCB routing constraints |
| NSR0230HT1G | Lower VF (270 mV typ @ 1 mA) but higher CT (25 pF); SOD-523 package (smaller, no NC pin) | Better for ultra-low-loss bias rails; unsuitable for high-speed data lines due to capacitance | Prefer for 1.2 V core supply clamping where size > speed; avoid for >5 MHz signals |
Compared with SBAT54DW-7-F and NSR0230HT1G, BAT54AW-7-F uniquely balances low VF, low CT, and single-diode simplicity in a 3-pin package with NC terminal-ideal for discrete clamping where layout isolation and thermal decoupling matter.
Availability
BAT54AW-7-F is available at Aetrix Electronics and suitable for DC-DC converter freewheeling, reverse polarity protection, and signal line clamping requiring stable component supply and long-term manufacturing continuity.
Supply support for BAT54AW-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 BAT54 family belongs to Diodes' high-reliability Schottky diode product line, engineered specifically for efficiency-critical and space-constrained power management and interface protection in consumer, industrial, and automotive electronics.
FAQ
What is the maximum junction temperature for BAT54AW-7-F?
The absolute maximum junction temperature is +125 °C, consistent with its −65 °C to +125 °C operating range. Derating begins at +25 °C ambient, with power dissipation reduced linearly to zero at +125 °C using the specified 625 °C/W RθJA.
Is BAT54AW-7-F suitable for automotive applications?
The standard BAT54AW-7-F is not AEC-Q200 qualified. For automotive use, Diodes offers the pin- and package-compatible BAT54AWQ-7-F variant, which meets AEC-Q200 Grade 1 (−40 °C to +125 °C) and includes extended reliability testing.
How does the NC pin (Pin 3) affect PCB layout?
Pin 3 is an internal die attach pad with no electrical function. It may be left unconnected or tied to ground for mechanical reinforcement. No thermal or electrical benefit is gained from connecting it, and doing so does not alter device characteristics or ratings.
Can BAT54AW-7-F replace BAT54W-7-F in existing designs?
Yes-BAT54AW-7-F and BAT54W-7-F share identical electrical specifications, package, pinout, and marking code KL6. The "A" suffix denotes a different wafer lot or process revision but does not impact form, fit, or function in any documented application.
BAT54AW-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 Common Anode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 200mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 25 V
- Operating Temperature - Junction:
- -65°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAT54AW-7-F FAQ
1.How can I place an order for BAT54AW-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54AW-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 BAT54AW-7-F reliable?
The price and inventory of BAT54AW-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 BAT54AW-7-F is usually 5 days.
3.What payment methods are accepted for BAT54AW-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54AW-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54AW-7-F?
BAT54AW-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54AW-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 BAT54AW-7-F?
For technical support, including BAT54AW-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54AW-7-F requirements.
6.How does Aetrix verify that BAT54AW-7-F is sourced from the original manufacturer or authorized distributors?
All BAT54AW-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 BAT54AW-7-F meets industry standards.
7.What is the process for return or replacement of BAT54AW-7-F?
All BAT54AW-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAT54AW-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 BAT54AW-7-F part is unused and in its original packaging.
Return procedure for BAT54AW-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54AW-7-F Tags
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BAV99-7-F
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