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Nexperia USA Inc. BAT54SW,115
- Part No.:
- BAT54SW,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAT54SW,115.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:248,090
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Product details
Overview
BAT54SW,115 from Nexperia is a dual common-cathode Schottky barrier diode in SOT323 (SC-70) package, featuring 30 V reverse voltage rating, 800 mV max forward voltage at 100 mA, 2 µA max reverse current at 25 V, 10 pF capacitance at 1 V, and 5 ns reverse recovery time - optimized for ultra-high-speed switching and reverse polarity protection in space-constrained DC power rails.
For engineers reviewing the BAT54SW,115 datasheet, BAT54SW,115 pinout, BAT54SW,115 application, or BAT54SW,115 equivalent, key selection criteria include low VF for efficiency-sensitive 3.3 V/5 V logic interfaces, low Cd for high-frequency line termination, fast trr for signal integrity in USB or I²C bus clamping, and thermal performance under pulsed load conditions on FR4 PCBs.
Technical Context
The BAT54SW,115 integrates two Schottky diodes sharing a common cathode terminal (Pin 3), enabling dual-channel clamping or polarity protection from a single footprint. Its planar structure with guard ring enhances ESD robustness and stress tolerance without compromising switching speed.
Designed for operation up to 150 °C junction temperature, it delivers stable VF and IR across -55 °C to 150 °C ambient range, with thermal resistance Rth(j-a) = 625 K/W on standard FR4 PCB - supporting reliable performance in thermally demanding industrial and portable applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 30 V maximum - supports 24 V DC systems with 20 % safety margin against transients. |
| Forward Voltage (VF) | 800 mV max at 100 mA - minimizes conduction loss in low-voltage power path protection. |
| Reverse Current (IR) | 2 µA max at 25 V - ensures low leakage in battery-backed or always-on circuits. |
| Diode Capacitance (Cd) | 10 pF at 1 V, 1 MHz - enables clean signal edge preservation in >100 MHz digital line termination. |
| Reverse Recovery Time (trr) | 5 ns typical - prevents switching distortion in high-frequency (>20 MHz) clamping applications. |
| Thermal Resistance (Rth(j-a)) | 625 K/W on FR4 - defines power derating curve: 200 mW max at Tamb ≤ 25 °C, zero at ~150 °C. |
| Peak Forward Current (IFSM) | 600 mA non-repetitive - withstands short-duration surge events like hot-plug or ESD-induced current spikes. |
Pinout & Package
Encapsulated in SOT323 (SC-70), a 3-pin surface-mount plastic package measuring 2.0 mm × 1.25 mm × 0.95 mm with 1.3 mm lead pitch and standard reflow footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode 1 (A1) | Input node for first diode path - connects to protected supply or signal line. |
| 2 | Cathode of Diode 2 (K2) | Output node for second diode path - ties to reference rail (e.g., GND or VCC). |
| 3 | Common Cathode/Anode (K1/A2) | Shared terminal: cathode for D1, anode for D2 - enables dual-direction clamping or OR-ing configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 800 mV max at 100 mA - reduces voltage drop and self-heating in 3.3 V/5 V power domain protection. |
| Low capacitance | 10 pF at 1 V - preserves signal rise/fall times in high-speed data lines (e.g., USB 2.0, I²C, SPI). |
| Fast reverse recovery | 5 ns typical - eliminates tail current in switching nodes, critical for noise-sensitive analog front-ends. |
| Integrated guard ring | Enhances ruggedness against ESD and voltage overshoot - improves reliability in unshielded consumer and industrial interfaces. |
Applications
| USB Data Line Clamping | DC Power Rail Polarity Protection |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D− lines from ESD and overvoltage events during cable insertion or hot-swap. IC Role / Device Role / Timing Role: Dual Schottky clamp - one diode per line referenced to VBUS/GND, leveraging common-cathode architecture for compact layout. Use Value: 5 ns trr and 10 pF Cd prevent signal degradation while meeting IEC 61000-4-2 Level 4 (±15 kV air) clamping requirements. | Use Scenario: Preventing damage from reversed battery or adapter connection in portable devices with single-cell Li-ion or 5 V wall adapters. IC Role / Device Role / Timing Role: Reverse polarity protector - configured as low-drop series diode in positive rail, using D1 (Pin 1→3) with K1 tied to load ground. Use Value: 800 mV VF limits voltage loss to <2.5 % at 100 mA, preserving runtime and regulation margin in 3.3 V systems. |
| High-Speed Logic Interface Termination | RS-485 Receiver Input Protection |
Use Scenario: Terminating unterminated CMOS/TTL outputs driving long PCB traces or cables to suppress ringing and overshoot. IC Role / Device Role / Timing Role: Bidirectional clamping diode - connected between signal and VCC/GND rails using both diodes in common-cathode topology. Use Value: 10 pF Cd avoids loading effects on >50 MHz signals; 30 V VR accommodates 3.3 V/5 V logic with headroom for transient coupling. | Use Scenario: Safeguarding RS-485 receiver inputs against ±15 V fault conditions and lightning-induced surges on industrial field wiring. IC Role / Device Role / Timing Role: Secondary-level transient suppressor - placed upstream of TVS diode to limit clamping voltage and absorb initial energy. Use Value: 2 µA IR at 25 V ensures negligible standby current draw; 600 mA IFSM handles brief surge currents without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSR0230HT1G | Single diode, SOD-323 package, 30 V VR, 420 mV VF @ 100 mA - lower VF but no dual configuration. | Requires two devices for dual-path function; occupies more board area than BAT54SW,115's integrated dual-diode layout. | Select when lowest possible forward drop is critical and board space allows discrete placement. |
| Vishay SDM1A030L-7 | Dual common-anode Schottky in SOT-23, 30 V VR, 450 mV VF @ 100 mA - different pinout (anode-common) and higher Cd (15 pF). | Not pin-compatible; requires PCB redesign; higher capacitance may degrade >50 MHz signal integrity. | Choose only if common-anode topology matches existing schematic and 15 pF Cd is acceptable for target frequency. |
Compared with NSR0230HT1G and SDM1A030L-7, BAT54SW,115 uniquely combines dual common-cathode topology, 5 ns trr, and 10 pF Cd in SOT323 - making it optimal for compact, high-speed bidirectional clamping where layout density and signal fidelity are prioritized over absolute minimum VF.
Availability
BAT54SW,115 is available at Aetrix Electronics and suitable for USB interface protection, DC power polarity safeguarding, and high-speed logic termination requiring stable component supply and consistent parametric performance across production lots.
Supply support for BAT54SW,115 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 focused on high-volume, high-reliability discrete and logic devices, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.
The BAT54SW,115 belongs to Nexperia's Schottky diode portfolio designed specifically for space-constrained, high-efficiency protection and signal conditioning in consumer, computing, and industrial electronics - emphasizing low VF, fast switching, and robust thermal behavior.
FAQ
What is the maximum continuous forward current rating for BAT54SW,115?
The BAT54SW,115 has a maximum continuous forward current (IF) of 200 mA per diode at Tamb ≤ 25 °C. Derating applies above 25 °C ambient: linear reduction to zero at 150 °C, based on its 625 K/W thermal resistance and 200 mW total power dissipation limit on standard FR4 PCB.
Is BAT54SW,115 automotive qualified?
No. BAT54SW,115 is not automotive qualified. The 2023 datasheet explicitly states it was changed to non-automotive qualification, and Nexperia directs users to its -Q qualified alternatives (e.g., BAT54SW-Q) for AEC-Q101-compliant applications in automotive systems.
How does the common-cathode pinout (Pin 3) affect circuit implementation?
Pin 3 serves as both cathode for Diode 1 (A1→K1) and anode for Diode 2 (A2→K2), enabling dual clamping (e.g., D+ to VBUS and D− to GND) or OR-ing configurations. This eliminates need for external node tying, reducing parasitic inductance and saving PCB area versus discrete dual-diode solutions.
Can BAT54SW,115 replace BAT54C in existing designs?
Yes, with verification. BAT54SW,115 shares identical electrical specs and SOT323 package with BAT54C, but uses different marking (44%) and has updated qualification status. Pin compatibility and thermal behavior are identical; however, confirm system-level ESD and lifetime requirements align with the non-automotive qualification of BAT54SW,115.
BAT54SW,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- 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):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 200mA (DC)
- 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
- Operating Temperature - Junction:
- 150°C (Max)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAT54SW,115 FAQ
1.How can I place an order for BAT54SW,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54SW,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 BAT54SW,115 reliable?
The price and inventory of BAT54SW,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54SW,115 is usually 5 days.
3.What payment methods are accepted for BAT54SW,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54SW,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54SW,115?
BAT54SW,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54SW,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 BAT54SW,115?
For technical support, including BAT54SW,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54SW,115 requirements.
6.How does Aetrix verify that BAT54SW,115 is sourced from the original manufacturer or authorized distributors?
All BAT54SW,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 BAT54SW,115 meets industry standards.
7.What is the process for return or replacement of BAT54SW,115?
All BAT54SW,115 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54SW,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 BAT54SW,115 part is unused and in its original packaging.
Return procedure for BAT54SW,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54SW,115 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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