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Nexperia USA Inc. BAT54W,115
- Part No.:
- BAT54W,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAT54W,115.pdf
- Description:
- DIODE SCHOTTKY 30V 200MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:118,145
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Product details
Overview
BAT54W from Nexperia is a planar Schottky barrier diode with integrated guard ring for stress protection, housed in an SOT323 (SC-70) package. It delivers 30 V reverse voltage rating, 800 mV forward voltage at 100 mA, 2 µA reverse leakage at 25 V, 10 pF capacitance at 1 V, and 5 ns reverse recovery time - enabling ultra-high-speed switching in compact power management and signal routing circuits.
For engineers reviewing the BAT54W datasheet, BAT54W pinout, BAT54W application, or BAT54W equivalent, key selection criteria include low VF for efficiency-critical biasing, low Cd for RF/line-termination integrity, fast trr for digital edge control, and SOT323 footprint compatibility in space-constrained PCB layouts.
Technical Context
The BAT54W implements a single-planar Schottky junction with guard ring structure to suppress edge breakdown under transient stress. Its low-barrier metal-semiconductor interface enables sub-800 mV conduction at 100 mA while maintaining <2 µA IR at 25 V - critical for precision clamping and reverse polarity protection where leakage-induced offset must be minimized.
Thermal resistance of 625 K/W (junction-to-ambient, FR4 PCB) and 150 °C max junction temperature support continuous operation up to 200 mA forward current. The 5 ns trr and 10 pF Cd at 1 MHz confirm suitability for >100 MHz signal path applications including USB data line termination and high-frequency DC-DC feedback snubbing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 30 V - supports rail-to-rail clamping in 24 V industrial I/O and 5 V/3.3 V logic interfaces without breakdown. |
| Forward Voltage (VF) | 800 mV @ 100 mA - minimizes conduction loss in low-voltage power OR-ing and battery backup paths. |
| Reverse Leakage (IR) | 2 µA @ 25 V - ensures negligible standby current in always-on reverse-polarity protection circuits. |
| Diode Capacitance (Cd) | 10 pF @ 1 V, 1 MHz - preserves signal integrity in 100+ MHz USB 2.0 and LVDS line termination. |
| Reverse Recovery Time (trr) | 5 ns - enables clean switching in PWM gate drive snubbers and high-frequency rectification up to 50 MHz. |
| Package | SOT323 (SC-70) - 2.0 × 1.25 × 0.95 mm body with 1.3 mm lead pitch fits 0402-class board area constraints. |
| Power Dissipation (Ptot) | 200 mW @ Tamb ≤ 25 °C - allows continuous 100 mA operation on standard FR4 without heatsinking. |
Pinout & Package
Encapsulated in the SOT323 (SC-70) surface-mount plastic package: 3-terminal, 1.3 mm pitch, 2.0 mm × 1.25 mm × 0.95 mm body, single-sided copper FR4 mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Positive terminal for forward conduction; connects to higher-potential node in clamping or OR-ing configuration. |
| 2 | Not Connected (n.c.) | Internally isolated; must remain unconnected on PCB to avoid parasitic coupling or mechanical stress. |
| 3 | Cathode (K) | Negative terminal; ties to reference ground or lower-potential rail in reverse polarity protection and voltage clamp topologies. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Suppresses edge breakdown during ESD transients and voltage overshoot, improving reliability in unregulated input stages. |
| Low forward voltage | Typical 320 mV at 1 mA enables precise low-current biasing in sensor front-ends without loading error. |
| Ultra-low capacitance | 10 pF at 1 V ensures minimal signal distortion in high-speed data line termination (e.g., RS-485, CAN FD). |
| Fast reverse recovery | 5 ns trr supports clean switching in 20–50 MHz clock distribution networks and synchronous rectifier flyback snubbers. |
Applications
| USB 2.0 Data Line Protection | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Protecting D+ and D− lines against ESD and overvoltage events in portable USB peripherals. IC Role / Device Role / Timing Role: Bidirectional clamping diode placed between data line and VBUS/GND rails. Use Value: 10 pF capacitance avoids signal rise-time degradation; 5 ns trr prevents data eye closure at 480 Mbps. | Use Scenario: Isolating analog sensor outputs from shared supply rails subject to load-switching noise. IC Role / Device Role / Timing Role: Reverse polarity protection and rail-to-rail voltage clamp at op-amp input stage. Use Value: 2 µA IR at 25 V prevents DC offset drift; 30 V VR accommodates 24 V industrial sensor supplies. |
| DC-DC Converter Feedback Snubber | Microcontroller GPIO Protection |
Use Scenario: Suppressing ringing on optocoupler feedback paths in isolated flyback converters. IC Role / Device Role / Timing Role: Fast-recovery snubbing diode across feedback resistor to damp high-frequency oscillation. Use Value: 5 ns trr captures sub-100 ns ringing edges; 800 mV VF ensures minimal impact on regulation setpoint. | Use Scenario: Preventing damage to MCU I/O pins during hot-plug or miswiring in modular embedded systems. IC Role / Device Role / Timing Role: Series-connected reverse polarity protector on VDD-supplied peripheral interface lines. Use Value: 200 mA IF rating handles brief inrush; SOT323 footprint aligns with 0402 passives for layout consistency. |
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 NSR0230HT1G | Lower VF (350 mV @ 10 mA), same SOT-23 package, no guard ring | Lacks integrated stress protection; less robust in ESD-prone environments | Prefer for ultra-low-VF biasing where transient immunity is secondary |
| Diodes Incorporated SD103AWS-7-F | Higher IR (5 µA @ 20 V), same SOT-323, 40 V VR rating | Better reverse voltage margin but higher leakage compromises low-power sleep modes | Choose when 40 V VR is mandatory and 5 µA IR is acceptable in system standby |
Compared with NSR0230HT1G and SD103AWS-7-F, the BAT54W uniquely balances guard ring–enhanced ruggedness, 30 V VR headroom, and 2 µA IR - making it optimal for industrial I/O protection where reliability and low leakage coexist.
Availability
BAT54W is available at Aetrix Electronics and suitable for USB interface protection, industrial sensor conditioning, DC-DC feedback snubbing, and microcontroller GPIO protection requiring stable component supply across production lifecycles.
Supply support for BAT54W 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 specializing in high-performance, energy-efficient discrete, logic, and MOSFET devices - headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.
The BAT54W belongs to Nexperia's Schottky diode portfolio designed specifically for high-speed signal integrity and robust power rail protection in consumer, industrial, and communications equipment.
FAQ
Is BAT54W suitable for automotive applications?
No. Per Nexperia's revision history, BAT54W is explicitly non-automotive qualified. It lacks AEC-Q101 qualification, automotive-grade process controls, and extended temperature validation. For automotive use, select the BAT54W-Q variant or equivalent AEC-Q101–certified Schottky diodes.
What is the maximum continuous forward current for BAT54W?
The absolute maximum continuous forward current is 200 mA at Tamb ≤ 25 °C on standard FR4 PCB. Derating is required above 25 °C ambient: junction temperature must not exceed 150 °C, and thermal resistance is 625 K/W, limiting usable current to ~120 mA at 85 °C ambient.
Can Pin 2 (n.c.) be grounded or left floating on the PCB?
Pin 2 must remain unconnected - neither grounded nor tied to any net. It is internally isolated with no electrical function. Connecting it risks mechanical stress on the die bond wire or unintended capacitive coupling that could degrade high-frequency performance.
How does BAT54W's guard ring improve reliability compared to standard Schottky diodes?
The integrated guard ring redistributes electric field intensity away from the junction periphery, suppressing premature edge breakdown during voltage transients and ESD events. This extends operational lifetime in unregulated input stages and improves robustness against 8 kV HBM ESD - confirmed by Nexperia's non-automotive qualification revision notes.
BAT54W,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 25 V
- Capacitance @ Vr, F:
- 10pF @ 1V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
- Operating Temperature - Junction:
- 150°C (Max)
BAT54W,115 FAQ
1.How can I place an order for BAT54W,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54W,115 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 BAT54W,115 reliable?
The price and inventory of BAT54W,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54W,115 is usually 5 days.
3.What payment methods are accepted for BAT54W,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54W,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54W,115?
BAT54W,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54W,115 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 BAT54W,115?
For technical support, including BAT54W,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54W,115 requirements.
6.How does Aetrix verify that BAT54W,115 is sourced from the original manufacturer or authorized distributors?
All BAT54W,115 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 BAT54W,115 meets industry standards.
7.What is the process for return or replacement of BAT54W,115?
All BAT54W,115 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54W,115, 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 BAT54W,115 part is unused and in its original packaging.
Return procedure for BAT54W,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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