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Nexperia USA Inc. BAT54CW-QF
- Part No.:
- BAT54CW-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAT54CW-QF.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:9,483
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Product details
Overview
BAT54CW-QF 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. It features low capacitance (10 pF), AEC-Q101 qualification, and integrated guard ring for stress protection-used in automotive line termination and reverse polarity protection circuits.
For engineers reviewing the BAT54CW-QF datasheet, BAT54CW-QF pinout, BAT54CW-QF application, or BAT54CW-QF equivalent, key selection criteria include dual-diode topology with shared cathode, ultrafast switching performance, low VF across 0.1–100 mA range, and thermal resistance of 625 K/W on FR4 PCB.
Technical Context
This dual Schottky diode integrates two anodes (A1, A2) and one common cathode (K1/K2) in a single SC-70 footprint, enabling compact dual-path clamping or steering without discrete pairing. Its planar structure with guard ring enhances ESD and transient robustness beyond standard Schottky devices.
The device operates with pulsed forward current up to 300 mA (IFRM), non-repetitive surge capability of 600 mA (IFSM), and junction temperature limit of 150 °C-supporting sustained operation in under-hood automotive environments where ambient reaches 125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 30 V maximum - defines absolute clamp threshold before breakdown in voltage-clamp or reverse-polarity protection designs. |
| Forward Voltage (VF) | 800 mV at 100 mA - enables low-loss power path switching and minimizes conduction loss in 3.3 V/5 V rail steering. |
| Reverse Recovery Time (trr) | 5 ns - supports >100 MHz signal line termination and high-speed data bus clamping without ringing. |
| Diode Capacitance (Cd) | 10 pF at 1 V - preserves signal integrity in USB, I²C, and CAN FD stubs by limiting capacitive loading. |
| Reverse Current (IR) | 2 µA at 25 V - ensures minimal leakage in battery-backed circuits and low-power always-on monitoring nodes. |
| Thermal Resistance (Rth(j-a)) | 625 K/W on FR4 - requires careful PCB copper area design to maintain Tj ≤ 150 °C at 200 mW dissipation. |
Pinout & Package
Encapsulated in SOT323 (SC-70), a 3-lead surface-mount plastic package measuring 2.0 mm × 1.25 mm × 0.95 mm with 1.3 mm lead pitch and tin-plated terminations compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (Diode 1) | Input node for first Schottky path; connects to signal source or supply rail requiring clamping or steering. |
| 2 | Anode (Diode 2) | Independent input node for second Schottky path; enables dual-rail protection or OR-ing configuration. |
| 3 | Common Cathode (K1/K2) | Shared output node tied to reference (e.g., VCC or GND); defines clamping direction and current return path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including HTOL, TC, HAST, and ESD testing per JESD22 standards. |
| Integrated guard ring | Improves ruggedness against EOS transients and localized junction failure during voltage overshoot events. |
| Low 10 pF capacitance | Enables use in 100+ Mbps digital interfaces without degrading edge rate or causing reflection-induced jitter. |
| 5 ns trr | Supports clean switching in PWM-controlled LED drivers and synchronous rectifier auxiliary paths. |
| SOT323 footprint | Reduces board area by >40% vs. SOT23 while maintaining compatibility with automated pick-and-place and reflow processes. |
Applications
| Automotive LIN Bus Protection | USB 2.0 Data Line Clamping |
|---|---|
Use Scenario: Protecting LIN transceiver pins from load-dump transients and ESD events in body control modules. IC Role / Device Role / Timing Role: Dual-anode clamping diode referenced to battery rail, conducting surges away from sensitive PHY inputs. Use Value: Prevents latch-up and permanent damage during ISO 7637-2 Pulse 5a (12 V system) without adding external TVS components. |
Use Scenario: Limiting D+ and D− voltage excursions during hot-plug insertion and ESD discharge in embedded USB peripherals. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between data lines and 3.3 V supply, leveraging common-cathode topology. Use Value: Maintains signal rise/fall times <1 ns while meeting IEC 61000-4-2 Level 4 (±15 kV air) without distorting eye diagram. |
| Industrial Sensor Signal Conditioning | Power Supply OR-ing Circuit |
Use Scenario: Protecting analog front-end inputs of 4–20 mA loop-powered sensors from reverse wiring and cable EMI coupling. IC Role / Device Role / Timing Role: Reverse polarity protector and overvoltage clamp placed ahead of precision op-amps and ADC drivers. Use Value: Eliminates need for series resistor + Zener solution, reducing BOM count and preserving DC accuracy below 0.1% error. |
Use Scenario: Enabling seamless switchover between redundant 5 V supplies in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Low-VF steering diode pair sharing cathode to minimize forward drop and thermal imbalance. Use Value: Reduces power loss by 40% vs. MOSFET-based ideal diodes at 200 mA load, with no control circuitry required. |
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 NSS40201MR6T5G | Same SOT-363 (SC-70-6) package but with separate cathodes; VF = 750 mV @ 100 mA; trr = 6 ns. | Lacks common-cathode topology-requires additional routing for shared return, increasing layout complexity in space-constrained modules. | Select when independent cathode control is needed for bidirectional clamping or isolated rail steering. |
| Vishay SMBJ5.0A-E3/52 | Single-channel 5 V TVS diode in DO-214AA; not Schottky; VF undefined; clamping voltage = 9.2 V (min). | Designed for high-energy surge suppression-not for signal-level clamping or ultrafast switching. | Choose only for primary overvoltage protection upstream of BAT54CW-QF; never as functional replacement. |
Compared with NSS40201MR6T5G and SMBJ5.0A-E3/52, BAT54CW-QF uniquely delivers dual-anode/common-cathode integration, sub-1 V forward drop, and 5 ns switching in a 3-pin SC-70-enabling compact, low-loss, automotive-qualified signal conditioning where topology and timing are critical.
Availability
BAT54CW-QF is available at Aetrix Electronics and suitable for automotive LIN bus protection, USB 2.0 data line clamping, and industrial sensor signal conditioning requiring stable component supply across production lifecycles.
Supply support for BAT54CW-QF 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-including logic, discretes, MOSFETs, and ESD protection devices-with manufacturing rooted in process technology leadership and automotive qualification rigor.
BAT54CW-QF belongs to Nexperia's AEC-Q101-qualified Schottky diode product line, engineered specifically for space-constrained, high-speed automotive and industrial signal integrity applications demanding low VF, low Cd, and fast trr.
FAQ
What is the maximum continuous forward current rating for BAT54CW-QF?
The maximum continuous forward current per diode is 200 mA at Tamb ≤ 25 °C on FR4 PCB with standard footprint. Derating applies above 25 °C ambient-junction temperature must remain ≤150 °C. At 85 °C ambient, max IF drops to approximately 120 mA based on Rth(j-a) = 625 K/W and Ptot = 200 mW limit.
Can BAT54CW-QF be used for reverse polarity protection in a 12 V automotive system?
Yes-BAT54CW-QF supports reverse polarity protection with its 30 V VR rating and low 800 mV VF at 100 mA. When placed in series with the positive rail, it blocks reverse connection while adding minimal voltage drop. Its AEC-Q101 qualification confirms suitability for 12 V vehicle electrical systems including start-stop and load-dump conditions.
Is the common cathode (Pin 3) internally bonded or externally accessible?
Pin 3 is a single externally accessible terminal that connects to both internal cathodes (K1 and K2). The datasheet pinning table explicitly labels it "K1, K2 common cathode", and the simplified outline shows one bond wire connecting Pin 3 to both die cathodes-confirming true internal common-cathode construction, not external tying.
How does BAT54CW-QF differ from the standard BAT54CW (non-Q) version?
The BAT54CW-QF is the AEC-Q101-qualified variant with enhanced test coverage including extended temperature cycling, biased HAST, and ESD testing per JESD22-A114. It carries full automotive traceability, lot-level qualification records, and tighter parametric limits on IR and VF-whereas the standard BAT54CW is commercial-grade and not certified for automotive use.
BAT54CW-QF 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-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAT54CW-QF FAQ
1.How can I place an order for BAT54CW-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54CW-QF 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-QF reliable?
The price and inventory of BAT54CW-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54CW-QF is usually 5 days.
3.What payment methods are accepted for BAT54CW-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54CW-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54CW-QF?
BAT54CW-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54CW-QF 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-QF?
For technical support, including BAT54CW-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54CW-QF requirements.
6.How does Aetrix verify that BAT54CW-QF is sourced from the original manufacturer or authorized distributors?
All BAT54CW-QF 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-QF meets industry standards.
7.What is the process for return or replacement of BAT54CW-QF?
All BAT54CW-QF units undergo pre-shipment inspection (PSI). If there is an issue with BAT54CW-QF, 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-QF part is unused and in its original packaging.
Return procedure for BAT54CW-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54CW-QF 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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