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Diodes Incorporated BAT54AW-7
- Part No.:
- BAT54AW-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAT54AW-7.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:18,000
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Product details
Overview
BAT54AW-7 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 reverse polarity protection diode in compact DC-DC converters and SMPS designs.
For engineers reviewing the BAT54AW-7 datasheet, BAT54AW-7 pinout, BAT54AW-7 application, or BAT54AW-7 equivalent, key selection criteria include low VF for efficiency-critical paths, fast 5 ns reverse recovery time for high-frequency switching, ultra-small SOT323 footprint for space-constrained PCBs, and guaranteed 2 µA max IR at 25 V for low-leakage blocking.
Technical Context
This Schottky diode uses a platinum-silicide or similar low-barrier metal-semiconductor junction to achieve low forward voltage and fast switching without minority-carrier storage delay. Its guard-ringed PN junction enhances ESD robustness and transient immunity beyond standard Schottky structures.
Thermal performance is defined by 625 °C/W junction-to-ambient resistance on FR-4 with recommended pad layout, enabling 200 mW power dissipation at +25°C ambient. Capacitance is specified at 10 pF under 1 V reverse bias and 1 MHz, supporting RF bypass and high-speed signal path isolation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse voltage before breakdown; sets safe blocking range in 24 V systems. |
| IF (continuous) | 200 mA - Sustained forward current capability; supports moderate-power load switching. |
| VF @ 1 mA | 320 mV max - Low conduction loss in low-current bias or sensing paths. |
| tRR | 5.0 ns - Enables operation up to ~70 MHz switching frequency without significant recovery loss. |
| IR @ 25 V | 2.0 µA max - Ensures minimal leakage in reverse-biased blocking applications. |
| CT @ 1 V, 1 MHz | 10 pF - Low capacitance preserves signal integrity in RF or high-speed digital isolation. |
| RθJA | 625 °C/W - Requires thermal-aware PCB layout (e.g., copper pour) for sustained 200 mW dissipation. |
Pinout & Package
Package: SOT323 - ultra-small plastic surface-mount package (2.0 × 2.225 × 0.9 mm), 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 forward conduction; requires low-impedance trace for high di/dt paths. |
| Cathode (Pin 2) | Forward current exit / reverse-blocking terminal | Typically tied to ground or return rail; must be routed away from noise-sensitive nodes due to capacitive coupling. |
| Collector / Heat Sink (Pin 3) | Exposed drain pad (cathode-connected) | Internally bonded to cathode; used for thermal relief and mechanical anchoring; must be soldered to copper pour for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | 320 mV max at 1 mA enables >95% efficiency in low-voltage (<5 V) freewheeling paths. |
| Fast switching speed | 5 ns reverse recovery time minimizes switching loss in PWM frequencies above 1 MHz. |
| PN junction guard ring | Provides ESD protection to ±8 kV HBM and improves surge tolerance in automotive-grade variants. |
| Ultra-small SOT323 package | 0.006 g weight and 2.0 × 2.225 mm footprint supports miniaturized portable and wearable power stages. |
Applications
| DC-DC Converter Freewheeling | Reverse Polarity Protection |
|---|---|
Use Scenario: Used across synchronous buck converter low-side switch node to provide flyback current path during high-side FET off-time. IC Role / Device Role: Freewheeling diode providing controlled current recirculation and minimizing voltage spikes. Use Value: 320 mV VF reduces conduction loss by ~40% vs. silicon diodes, improving light-load efficiency. | Use Scenario: Placed in series with VIN rail to block reverse input connection in USB-powered devices or battery-backed modules. IC Role / Device Role: Series-blocking diode preventing damage from accidental negative supply insertion. Use Value: 2 µA IR ensures <1 µW standby leakage, preserving battery life over multi-year deployments. |
| Blocking Diode in Power ORing | ESD-Sensitive Signal Line Clamp |
Use Scenario: Isolates dual-input power rails (e.g., wall adapter + Li-ion) to prevent backfeed and enable seamless switchover. IC Role / Device Role: Unidirectional blocking element ensuring source priority and fault containment. Use Value: 30 V VRRM supports 24 V industrial inputs while 200 mA IF handles typical sensor module loads. | Use Scenario: Connected between I/O line and ground to clamp ESD transients in USB, UART, or GPIO interfaces. IC Role / Device Role: Low-capacitance shunt clamp leveraging Schottky junction for sub-ns response. Use Value: 10 pF CT avoids signal distortion on 10 Mbps UART lines; guard ring sustains ±8 kV HBM per IEC 61000-4-2. |
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. | Requires dual-path freewheeling or complementary clamping; not single-diode drop-in. | Select when two matched Schottky junctions are needed in minimal area. |
| NSR0230HT1G | Lower VF (270 mV @ 1 mA), same 30 V rating, but SOD-523 (smaller) package with no exposed thermal pad. | Limited thermal margin at >150 mA; unsuitable for sustained 200 mA operation without derating. | Prefer for ultra-low VF in space-constrained, low-duty-cycle applications where thermal headroom is ample. |
Compared with SBAT54DW-7-F and NSR0230HT1G, BAT54AW-7 offers optimal balance of thermal reliability (exposed cathode pad), proven ESD robustness (guard ring), and single-diode simplicity-making it preferred for production-grade DC-DC and protection circuits requiring long-term stability.
Availability
BAT54AW-7 is available at Aetrix Electronics and suitable for DC-DC converters, reverse polarity protection circuits, and freewheeling diode applications requiring stable component supply, consistent parametric performance, and full RoHS/Green compliance.
Supply support for BAT54AW-7 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 and manufacturing operations across Asia and the Americas.
The BAT54 family belongs to Diodes' general-purpose Schottky diode product line, engineered for high-efficiency, high-reliability power management in consumer, industrial, and computing applications where low VF and fast switching are critical.
FAQ
What is the maximum junction temperature for BAT54AW-7?
The absolute maximum junction temperature is +125°C, with operating range from –65°C to +125°C. Derating begins at +25°C ambient per the 625 °C/W RθJA curve; at 85°C ambient, maximum continuous IF drops to approximately 120 mA to maintain TJ ≤ 125°C.
Is BAT54AW-7 suitable for automotive applications?
The standard BAT54AW-7 is not AEC-Q200 qualified. For automotive use, Diodes offers the pin- and form-factored BAT54AWQ variant, which undergoes extended temperature cycling, humidity testing, and failure analysis per AEC-Q200 Rev D requirements.
How does the guard ring improve reliability?
The integrated PN junction guard ring surrounds the Schottky anode, suppressing edge breakdown and enhancing resistance to electrostatic discharge (ESD) and voltage transients. It enables ±8 kV HBM ESD rating and improves ruggedness against repetitive 25 V reverse surges without degradation.
Can BAT54AW-7 replace BAT54W-7 in existing designs?
Yes-BAT54AW-7 and BAT54W-7 share identical electrical specifications, SOT323 package, and pinout. The "A" suffix denotes a different wafer lot or process revision with equivalent performance; both meet DS30065 Rev. 17 specifications and are fully interchangeable in production.
BAT54AW-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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 FAQ
1.How can I place an order for BAT54AW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54AW-7 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 reliable?
The price and inventory of BAT54AW-7 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 is usually 5 days.
3.What payment methods are accepted for BAT54AW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54AW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54AW-7?
BAT54AW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54AW-7 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?
For technical support, including BAT54AW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54AW-7 requirements.
6.How does Aetrix verify that BAT54AW-7 is sourced from the original manufacturer or authorized distributors?
All BAT54AW-7 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 meets industry standards.
7.What is the process for return or replacement of BAT54AW-7?
All BAT54AW-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54AW-7, 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 part is unused and in its original packaging.
Return procedure for BAT54AW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54AW-7 Tags
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BAV99-7-F
Diodes Incorporated
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BAV99,215
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BAV99LT1G
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