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Nexperia USA Inc. BAT854CW-QX
- Part No.:
- BAT854CW-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAT854CW-QX.pdf
- Description:
- DIODE ARR SCHOT 40V 200MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,818
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Product details
Overview
BAT854CW-QX from Nexperia is a dual Schottky barrier diode in SOT323 (SC-70) package, rated for 40 V reverse voltage and 200 mA forward current per diode, with 550 mV typical forward voltage at 100 mA and 0.5 µA reverse leakage at 25 V. It integrates a guard ring for stress protection and is AEC-Q101 qualified for automotive use.
For engineers reviewing the BAT854CW-QX datasheet, BAT854CW-QX pinout, BAT854CW-QX application, or BAT854CW-QX equivalent, key selection criteria include low VF for efficiency-critical biasing, ultra-low IR for signal integrity in clamping, dual-anode/common-cathode topology for compact dual-path protection, and AEC-Q101 qualification for under-hood electronics.
Technical Context
This dual Schottky diode features two independent anodes sharing a common cathode terminal, enabling independent forward conduction paths with matched thermal and electrical characteristics. Its planar structure with integrated guard ring improves ruggedness against ESD and transient overstress.
The device operates across −65 °C to +150 °C ambient, with 625 K/W junction-to-ambient thermal resistance on standard FR4 PCB, and exhibits 20 pF capacitance at 1 V reverse bias-critical for high-speed switching and RF decoupling applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 40 V maximum - sets upper limit for clamping or blocking in 24 V automotive systems |
| Forward Current (IF) | 200 mA continuous per diode - supports low-power logic-level signal routing and bias networks |
| Forward Voltage (VF) | 550 mV typical at 100 mA - minimizes power loss in battery-powered hand-held devices |
| Reverse Leakage (IR) | 0.5 µA at 25 V - ensures minimal signal distortion in precision analog protection circuits |
| Diode Capacitance (Cd) | 20 pF at 1 V, 1 MHz - enables effective high-frequency noise suppression up to ~800 MHz |
| Junction Temperature (Tj) | 150 °C maximum - allows operation in engine control unit (ECU) and body control module (BCM) environments |
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 tin-plated terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | Anode of Diode 1 | Independent input path for first Schottky junction; used for discrete clamping or OR-ing |
| 2 (A2) | Anode of Diode 2 | Independent input path for second Schottky junction; enables dual-rail protection or redundancy |
| 3 (K1/K2) | Common Cathode | Shared output node; simplifies PCB layout for dual-diode configurations without external wiring |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring protection | Enhances ESD robustness (HBM > 8 kV) and transient survivability in automotive load-dump scenarios |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock |
| Low VF / low IR trade-off | 550 mV VF and 0.5 µA IR achieved simultaneously-enables efficient clamping without signal leakage |
| Ultra-small footprint | SOT323 package saves >60% board area vs. SOIC-8 dual diodes-critical for space-constrained ADAS sensors |
Applications
| Automotive Body Control Module | USB Port Protection |
|---|---|
|
Use Scenario: Reverse polarity and ESD protection for LIN bus transceivers and interior lighting drivers. IC Role / Device Role / Timing Role: Dual-anode clamping diode providing bidirectional overvoltage suppression on supply and signal lines. Use Value: Prevents latch-up in 5 V/12 V mixed-rail subsystems while maintaining <1 µA standby leakage. |
Use Scenario: Overvoltage and hot-swap protection on USB 2.0 VBUS and D+/D− lines in infotainment head units. IC Role / Device Role / Timing Role: Common-cathode dual Schottky used as rail clamp and data-line ESD shunt. Use Value: 20 pF capacitance avoids signal integrity degradation at 480 Mbps; 550 mV VF limits insertion loss. |
| Portable Medical Sensor Hub | Industrial PLC Input Conditioning |
|
Use Scenario: Power path OR-ing and battery backup switching in wearable ECG monitors. IC Role / Device Role / Timing Role: Dual-anode configuration enables seamless switchover between coin-cell and USB charging rails. Use Value: 0.5 µA IR prevents battery drain during sleep mode; 200 mA IF supports peak sensor burst currents. |
Use Scenario: Input signal clamping and surge suppression on 24 V digital I/O channels in factory automation controllers. IC Role / Device Role / Timing Role: Dual diode used for positive/negative rail clamping and transient absorption on isolated inputs. Use Value: Guard ring withstands 1 kV/µs fast transients per IEC 61000-4-5; 40 V VR covers 24 V system margin. |
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 NSR20F40NXT5G | Higher IF rating (400 mA), higher VF (620 mV typ.), same SOT-323 package | Better suited for higher-current power OR-ing; less optimal for ultra-low-leakage signal clamping | Select when forward current headroom >200 mA is required and 70 mV VF penalty is acceptable |
| Vishay SDM20U40 | Single-diode SOD-323 package, no common-cathode dual topology, lower IR (0.2 µA) | Requires two separate devices for dual-path function; lacks integrated dual-anode convenience | Choose only if discrete placement flexibility is prioritized over board-area savings and layout simplicity |
Compared with NSR20F40NXT5G and SDM20U40, BAT854CW-QX uniquely balances low VF, ultra-low IR, and dual-anode/common-cathode integration in AEC-Q101-qualified SOT323-making it optimal for space- and leakage-sensitive automotive signal conditioning.
Availability
BAT854CW-QX is available at Aetrix Electronics and suitable for automotive body control modules, USB interface protection, portable medical sensor hubs, and industrial PLC input conditioning requiring stable component supply and long-term lifecycle support.
Supply support for BAT854CW-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.
BAT854CW-QX belongs to Nexperia's AEC-Q101-qualified Schottky diode portfolio, engineered specifically for automotive signal integrity, power path protection, and space-constrained ECU subsystems.
FAQ
Is BAT854CW-QX pin-compatible with BAT54 series diodes?
No. BAT854CW-QX uses a dual-anode/common-cathode pinout (A1–A2–K), whereas BAT54 variants have anode–cathode–anode (A–K–A) or cathode–anode–anode (K–A–A) arrangements. Direct replacement requires PCB layout revision due to differing terminal assignments and internal topology.
What is the maximum pulsed forward current rating for BAT854CW-QX?
The non-repetitive peak forward current is 1 A for 8.3 ms half-sine pulses at Tj(init) = 25 °C, per IEC 60134 limiting values. This supports short-duration inrush or surge events in automotive load-switching applications without thermal runaway.
Does BAT854CW-QX support reflow soldering per JEDEC J-STD-020?
Yes. The SOT323 package is qualified for lead-free reflow per JEDEC J-STD-020D, with peak temperature up to 260 °C. Recommended footprint dimensions (2.65 mm × 2.35 mm solder lands, 0.55 mm paste stencil) are specified in Figure 5 of the datasheet.
How does the guard ring affect ESD performance?
The integrated guard ring increases HBM ESD withstand capability to >8 kV by distributing electric field stress away from the active junction edge. This improves robustness against handling-induced discharges and system-level ESD events in unshielded automotive cabin modules.
BAT854CW-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):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 nA @ 25 V
- Operating Temperature - Junction:
- 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAT854CW-QX FAQ
1.How can I place an order for BAT854CW-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT854CW-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 BAT854CW-QX reliable?
The price and inventory of BAT854CW-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT854CW-QX is usually 5 days.
3.What payment methods are accepted for BAT854CW-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT854CW-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT854CW-QX?
BAT854CW-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT854CW-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 BAT854CW-QX?
For technical support, including BAT854CW-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT854CW-QX requirements.
6.How does Aetrix verify that BAT854CW-QX is sourced from the original manufacturer or authorized distributors?
All BAT854CW-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 BAT854CW-QX meets industry standards.
7.What is the process for return or replacement of BAT854CW-QX?
All BAT854CW-QX units undergo pre-shipment inspection (PSI). If there is an issue with BAT854CW-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 BAT854CW-QX part is unused and in its original packaging.
Return procedure for BAT854CW-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT854CW-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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