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Nexperia USA Inc. BAT54CW,115
- Part No.:
- BAT54CW,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAT54CW,115.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:745
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BAT54CW from Nexperia is a dual common-cathode Schottky barrier diode in SOT323 (SC-70) package, designed for ultra-high-speed switching and reverse polarity protection. 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 compact, low-loss signal routing in portable power management and interface circuits.
For engineers reviewing the BAT54CW datasheet, BAT54CW pinout, BAT54CW application, or BAT54CW equivalent, key selection criteria include dual-diode topology with shared cathode, low VF for battery-sensitive designs, sub-10 pF junction capacitance for RF line termination, and SC-70 footprint compatibility with high-density PCB layouts.
Technical Context
The BAT54CW integrates two independent Schottky diodes sharing a common cathode terminal, forming a compact dual-diode configuration optimized for bidirectional clamping and polarity protection. Its planar structure includes a guard ring for ESD and transient stress resilience, and it operates across −55 °C to +150 °C ambient temperature range.
This device leverages low-barrier metal–semiconductor junctions to achieve nanosecond-scale reverse recovery (trr = 5 ns) and minimal forward conduction loss (VF ≤ 800 mV @ 100 mA), making it suitable for high-frequency signal routing, USB/UART line protection, and DC bias control where fast switching and low capacitance are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 30 V maximum - supports 24 V system-level clamping and 5 V/3.3 V rail protection without breakdown. |
| Forward Voltage (VF) | 800 mV at 100 mA - minimizes conduction loss in battery-powered load-switching and polarity-guard circuits. |
| Reverse Leakage (IR) | 2 µA at 25 V - ensures low standby current in always-on protection paths and signal-sensing nodes. |
| Junction Capacitance (Cd) | 10 pF at 1 V, 1 MHz - enables clean high-speed signal integrity in USB 2.0, I²C, and RS-232 line termination. |
| Reverse Recovery Time (trr) | 5 ns - allows reliable operation up to ~70 MHz switching frequency in pulse-shaping and edge-detection applications. |
| Thermal Resistance (Rth(j-a)) | 625 K/W - defines power derating on standard FR4 PCB; limits continuous dissipation to ~200 mW at Tamb ≤ 25 °C. |
| Package | SOT323 (SC-70) - 2.0 × 1.25 × 0.95 mm body, 1.3 mm lead pitch, compatible with automated reflow assembly. |
Pinout & Package
SOT323 (SC-70) surface-mount plastic package with 3 leads, 1.3 mm pitch, and standardized footprint per Nexperia's sot323_fr layout (2.65 mm × 2.35 mm solder land area).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | Anode of Diode 1 | Input node for first Schottky path; used independently or in parallel with A2 for redundancy or dual-rail protection. |
| 2 (A2) | Anode of Diode 2 | Second independent anode; enables dual-input/single-output clamping or separate supply rail protection. |
| 3 (K1,K2) | Common Cathode | Shared output node - simplifies PCB routing for bidirectional clamp configurations and reduces net count in polarity-guard circuits. |
Key Features
| Feature | Design Value |
|---|---|
| Guard Ring Integration | Enhances robustness against ESD and voltage transients without external components, supporting IEC 61000-4-2 Level 4 compliance in end equipment. |
| Low Forward Voltage | Typical VF ≤ 320 mV at 1 mA - preserves signal margin in low-voltage logic interfaces and extends battery life in wearables. |
| Ultra-Low Capacitance | 10 pF at 1 V - avoids signal distortion and timing skew in >10 MHz digital lines and analog sensor front-ends. |
| Dual Common-Cathode Topology | Reduces component count and board space versus discrete dual-diode solutions; simplifies layout for USB Type-A/B port protection. |
Applications
| USB Port Protection | RS-232 Line Clamping |
|---|---|
Use Scenario: Protecting host/device USB 2.0 data lines (D+, D−) from ESD and overvoltage events during hot-plug insertion. IC Role / Device Role / Timing Role: Dual Schottky clamp with common cathode tied to VBUS or ground, limiting transient excursions to < 3.6 V while preserving signal rise/fall times. Use Value: Prevents PHY damage without adding series resistance or degrading 480 Mbps signaling integrity due to 5 ns trr and 10 pF Cd. | Use Scenario: Clamping ±12 V RS-232 driver outputs to safe logic levels before connecting to microcontroller UART pins. IC Role / Device Role / Timing Role: Bidirectional voltage limiter using A1–K and A2–K paths to shunt positive/negative transients to respective rails. Use Value: Enables direct interfacing of legacy serial peripherals without level-shifters, leveraging 30 V VR and low VF for minimal offset error. |
| Reverse Polarity Input Protection | Low-Voltage Bias Control |
Use Scenario: Preventing damage when external 3.3 V or 5 V power supplies are incorrectly connected with reversed polarity to embedded modules. IC Role / Device Role / Timing Role: Series-connected Schottky diode (anode to input, cathode to system rail) acting as low-loss power-path switch. Use Value: Limits voltage drop to ≤ 800 mV at full load, reducing thermal burden versus MOSFET-based ideal diodes in space-constrained designs. | Use Scenario: Providing precise DC bias points for RF amplifiers or op-amp reference networks in portable instrumentation. IC Role / Device Role / Timing Role: Low-capacitance, low-leakage voltage reference clamp using one diode branch with controlled forward drop. Use Value: Delivers stable 0.32 V to 0.8 V bias offsets with < 2 µA IR drift over temperature, improving ADC reference stability. |
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-523 package (1.2 × 0.8 mm), VF = 450 mV @ 100 mA, VR = 30 V, Cd = 15 pF | Lacks dual-anode topology; requires two devices for equivalent functionality; higher capacitance affects >20 MHz signals. | Select when single-diode replacement suffices and board area permits duplication; avoid for shared-cathode routing constraints. |
| Diodes Inc. SD103AW-7-F | Dual common-cathode, SOT-323, VF = 1 V @ 200 mA, VR = 40 V, Cd = 12 pF, trr = 5 ns | Higher VF increases conduction loss in battery systems; wider VR margin useful only in 36 V industrial inputs. | Prefer for higher reverse voltage headroom where 30 V margin is insufficient; accept trade-off in efficiency for ruggedized 24 V bus protection. |
Compared with NSR0230HT1G and SD103AW-7-F, the BAT54CW uniquely balances dual-diode integration, 10 pF capacitance, and 800 mV VF in the smallest standardized SOT323 footprint - making it optimal for miniaturized USB, sensor hub, and low-power MCU peripheral protection where layout density and signal fidelity are co-constrained.
Availability
BAT54CW is available at Aetrix Electronics and suitable for USB port protection, RS-232 line clamping, reverse polarity input protection, and low-voltage bias control requiring stable component supply and consistent SC-70 packaging across production batches.
Supply support for BAT54CW 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 essential semiconductors - delivering discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The BAT54CW belongs to Nexperia's Schottky diode portfolio engineered specifically for ultra-high-speed signal integrity and compact power-path protection in portable and interface-dense electronics.
FAQ
What is the maximum continuous forward current rating for BAT54CW?
The BAT54CW has a maximum continuous forward current (IF) of 200 mA per diode under ambient conditions ≤ 25 °C. Derating is required above this temperature - at 85 °C ambient, the usable IF drops to approximately 120 mA due to thermal resistance limitations (Rth(j-a) = 625 K/W) and junction temperature constraints (Tj ≤ 150 °C).
Can BAT54CW be used in automotive applications?
No - the BAT54CW is explicitly marked as non-automotive qualified in its revision history. It lacks AEC-Q101 qualification, automotive-grade screening, and extended temperature validation beyond −55 °C to +150 °C ambient. For automotive use, Nexperia offers the BAT54CW-Q variant, which undergoes additional stress testing and process controls aligned with automotive reliability standards.
How does the guard ring improve reliability in BAT54CW?
The integrated guard ring in BAT54CW mitigates edge electric field concentration at the PN junction periphery, significantly improving resistance to electrostatic discharge (ESD) and repetitive voltage transients. This structural feature enables robust operation in handheld and USB-connected devices without requiring external TVS diodes, and contributes to its ability to withstand IEC 61000-4-2 Level 4 (±8 kV contact) events when properly laid out on PCB.
Is BAT54CW pin-compatible with BAT54C or BAT54S?
No - BAT54CW uses a dual common-cathode configuration (A1–A2–K), whereas BAT54C is dual common-anode (K1–K2–A) and BAT54S is series-connected (A–K–A). Their pinouts differ fundamentally: BAT54CW pin 3 is common cathode, BAT54C pin 3 is common anode, and BAT54S pin 2 is the internal connection node. Substitution requires schematic and layout revision to maintain correct polarity and signal flow.
BAT54CW,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 Common Cathode
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAT54CW,115 FAQ
1.How can I place an order for BAT54CW,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54CW,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 BAT54CW,115 reliable?
The price and inventory of BAT54CW,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54CW,115 is usually 5 days.
3.What payment methods are accepted for BAT54CW,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54CW,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54CW,115?
BAT54CW,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54CW,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 BAT54CW,115?
For technical support, including BAT54CW,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54CW,115 requirements.
6.How does Aetrix verify that BAT54CW,115 is sourced from the original manufacturer or authorized distributors?
All BAT54CW,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 BAT54CW,115 meets industry standards.
7.What is the process for return or replacement of BAT54CW,115?
All BAT54CW,115 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54CW,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 BAT54CW,115 part is unused and in its original packaging.
Return procedure for BAT54CW,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54CW,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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