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Nexperia USA Inc. BAT54CW-QX
- Part No.:
- BAT54CW-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAT54CW-QX.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:9,145
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Product details
Overview
BAT54CW-QX from Nexperia is a dual common-cathode Schottky barrier diode in SOT323 (SC-70) package, rated for 30 V reverse voltage, 800 mV forward voltage at 100 mA, and 5 ns reverse recovery time, with AEC-Q101 qualification for automotive line termination and reverse polarity protection.
For engineers reviewing the BAT54CW-QX datasheet, BAT54CW-QX pinout, BAT54CW-QX application, or BAT54CW-QX equivalent, key selection criteria include low capacitance (10 pF), ultrafast switching performance, automotive-grade reliability, and dual-diode integration in a 2.0 mm × 1.25 mm surface-mount footprint.
Technical Context
This dual Schottky diode integrates two anodes (A1, A2) sharing a common cathode (K1/K2), enabling independent clamping or steering paths in compact space-constrained layouts. Its planar structure includes a guard ring for ESD and transient stress protection, critical for automotive signal integrity.
The device operates with pulsed forward current up to 300 mA (IFRM) and non-repetitive surge capability of 600 mA (IFSM), while maintaining thermal resistance of 625 K/W junction-to-ambient on standard FR4 PCB - supporting reliable operation in ambient temperatures from −55 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 30 V maximum - supports 24 V automotive bus clamping with 25 % margin |
| Forward Voltage (VF) | 800 mV at 100 mA - minimizes conduction loss in high-frequency switching paths |
| Reverse Recovery Time (trr) | 5 ns - enables >100 MHz switching in RF and data-line applications |
| Diode Capacitance (Cd) | 10 pF at 1 V VR - preserves signal integrity in USB, HDMI, and LVDS termination |
| Reverse Current (IR) | 2 µA at 25 V - ensures low leakage in battery-powered reverse-polarity circuits |
| Thermal Resistance (Rth(j-a)) | 625 K/W - defines power derating curve for 200 mW total dissipation on standard FR4 |
Pinout & Package
Encapsulated in SOT323 (SC-70), a 3-pin, 1.3 mm pitch, 2.0 mm × 1.25 mm × 0.95 mm surface-mount plastic package optimized for automated placement and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode 1 (A1) | Independent input path for first Schottky diode; used for signal clamping or steering |
| 2 | Anode 2 (A2) | Independent input path for second Schottky diode; enables dual-rail or redundant protection |
| 3 | Common Cathode (K1/K2) | Shared output node; simplifies PCB routing and reduces trace inductance in high-speed layouts |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood and infotainment systems per discrete semiconductor stress test standard |
| Guard ring structure | Enhances ruggedness against ESD and voltage transients without external TVS components |
| Low VF across current range | 240 mV at 0.1 mA to 800 mV at 100 mA - supports both biasing and power-switching functions |
| Ultra-low Cd and trr | 10 pF capacitance and 5 ns recovery - suitable for >100 MHz digital interface line termination |
Applications
| Automotive CAN Bus Protection | USB 2.0 Data Line Clamping |
|---|---|
Use Scenario: Bidirectional signal protection on 125 kbps CAN H/L lines exposed to load-dump transients. IC Role / Device Role / Timing Role: Dual-anode Schottky clamps each line to VCC and GND, leveraging common cathode for shared return path. Use Value: Prevents bus lock-up during ±30 V transients while adding <10 pF loading per line - no timing skew introduced. |
Use Scenario: ESD and overvoltage protection on D+ and D− pins of USB 2.0 host ports. IC Role / Device Role / Timing Role: Two independent Schottky paths clamp differential signals to 3.3 V rail and ground, preserving 480 Mbps eye diagram integrity. Use Value: 5 ns trr avoids data corruption; 10 pF Cd maintains signal rise/fall times within USB 2.0 specification limits. |
| Industrial Sensor Signal Conditioning | Reverse Polarity Input Protection |
Use Scenario: Protecting analog front-end inputs of 4–20 mA loop-powered sensors from miswiring and EMI. IC Role / Device Role / Timing Role: Anode-connected to sensor output, cathode tied to system ground - provides low-leakage (<2 µA) DC blocking and transient shunting. Use Value: Maintains microamp-level accuracy in precision current loops without offset drift from forward drop. |
Use Scenario: Input-stage protection for 5 V/12 V embedded controllers powered from external connectors. IC Role / Device Role / Timing Role: Anode connected to supply input, cathode to system rail - blocks reverse connection while conducting forward with 800 mV drop. Use Value: Enables single-component, low-loss polarity guard with no series resistor required - saves board space and BOM count. |
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 NSR20F30NXT5G | Single diode, 30 V VR, 450 mV VF @ 100 mA, SOD-523 package | Lacks dual-anode topology; requires two devices for same functionality | Select when only one clamping path is needed and board area allows separate placement |
| Vishay SDURB140Q-13 | Dual common-cathode, 40 V VR, 550 mV VF @ 100 mA, SOT-363 package | Higher VR rating but larger 2.2 mm × 1.35 mm footprint and 15 pF capacitance | Prefer for 36 V industrial systems where lower capacitance is less critical than voltage margin |
Compared with BAT54CW-QX, NSR20F30NXT5G lacks integrated dual functionality and increases layout complexity, while SDURB140Q-13 trades 5 ns speed and 10 pF capacitance for higher voltage headroom - making BAT54CW-QX optimal for space- and speed-sensitive automotive and USB designs.
Availability
BAT54CW-QX is available at Aetrix Electronics and suitable for automotive CAN bus protection, USB 2.0 clamping, and reverse polarity input protection requiring stable component supply across production lifecycles.
Supply support for BAT54CW-QX 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, with leadership in automotive-qualified components and advanced packaging.
BAT54CW-QX belongs to Nexperia's AEC-Q101-qualified Schottky diode family, engineered specifically for ultrafast, low-loss signal conditioning and protection in automotive and high-speed interface applications.
FAQ
What is the maximum continuous forward current rating for BAT54CW-QX?
The absolute maximum continuous forward current per diode is 200 mA at Tamb ≤ 25 °C, derating linearly above that temperature based on the 625 K/W thermal resistance. This rating assumes one diode is conducting while the other remains idle, as specified in the "Per diode" limiting values table.
Does BAT54CW-QX support bidirectional clamping in a single package?
No - BAT54CW-QX contains two anodes and one common cathode, enabling only unidirectional clamping from each anode to the cathode node. For true bidirectional clamping (e.g., rail-to-rail), external complementary diodes or dedicated TVS arrays are required.
Can BAT54CW-QX be used in place of BAT54C for automotive designs?
Yes - BAT54CW-QX is the AEC-Q101-qualified version of BAT54C, sharing identical electrical characteristics and SOT323 package, but with added automotive stress-test validation including HTGB, HTRB, and ESD testing per AEC-Q101 Rev D requirements.
What is the meaning of the 'W' and 'Q' suffixes in BAT54CW-QX?
The 'W' denotes the SOT323 (SC-70) package variant; the 'Q' indicates AEC-Q101 qualification. The 'X' in BAT54CW-QX is a distributor-specific suffix and does not affect electrical or mechanical specifications - it maps directly to the manufacturer's BAT54CW-Q part number.
BAT54CW-QX 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
- 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
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAT54CW-QX FAQ
1.How can I place an order for BAT54CW-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54CW-QX 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-QX reliable?
The price and inventory of BAT54CW-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54CW-QX is usually 5 days.
3.What payment methods are accepted for BAT54CW-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54CW-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54CW-QX?
BAT54CW-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54CW-QX 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-QX?
For technical support, including BAT54CW-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54CW-QX requirements.
6.How does Aetrix verify that BAT54CW-QX is sourced from the original manufacturer or authorized distributors?
All BAT54CW-QX 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-QX meets industry standards.
7.What is the process for return or replacement of BAT54CW-QX?
All BAT54CW-QX units undergo pre-shipment inspection (PSI). If there is an issue with BAT54CW-QX, 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-QX part is unused and in its original packaging.
Return procedure for BAT54CW-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54CW-QX 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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