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Nexperia USA Inc. BAT854AW-QX
- Part No.:
- BAT854AW-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAT854AW-QX.pdf
- Description:
- DIODE ARR SCHOT 40V 200MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:1,059
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Product details
Overview
BAT854AW-QX from Nexperia is a dual Schottky barrier diode in SOT323 (SC-70) package, featuring common-anode configuration, 40 V reverse voltage rating, 200 mA forward current per diode, and 550 mV forward voltage at 100 mA - optimized for ultra-high-speed switching and automotive-grade protection circuits.
For engineers reviewing the BAT854AW-QX datasheet, BAT854AW-QX pinout, BAT854AW-QX application, or BAT854AW-QX equivalent, this device delivers low VF, sub-µA IR, guard-ring stress protection, AEC-Q101 qualification, and compact SMD footprint critical for space-constrained, low-power, and automotive signal clamping designs.
Technical Context
This dual Schottky diode integrates two independent junctions sharing a common anode terminal, enabling bidirectional cathode-side clamping or independent low-loss rectification paths. Its planar structure with integrated guard ring enhances ESD and transient robustness without compromising switching speed.
Designed for operation up to 150 °C junction temperature, it exhibits 20 pF capacitance at 1 V reverse bias and 625 K/W junction-to-ambient thermal resistance on standard FR4 PCB - supporting reliable performance in thermally demanding automotive and portable electronics environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 40 V - maximum blocking capability per diode, suitable for 24 V automotive rail clamping and 3.3/5 V logic-level protection. |
| Forward Current (IF) | 200 mA continuous per diode - supports moderate-power signal routing and biasing without thermal derating in SOT323. |
| Forward Voltage (VF) | 550 mV at 100 mA, 25 °C - enables ultra-low conduction loss in battery-sensitive applications like handheld devices. |
| Reverse Current (IR) | 0.5 µA at 25 V, pulsed - ensures minimal leakage in high-impedance sensing and standby power paths. |
| Diode Capacitance (Cd) | 20 pF at 1 V, 1 MHz - preserves signal integrity in <100 MHz digital clamping and RF detector front-ends. |
| Junction Temperature (Tj) | 150 °C max - validated for under-hood automotive modules and industrial control units with limited airflow. |
Pinout & Package
Encapsulated in SOT323 (SC-70), a 3-pin, 2.0 mm × 1.25 mm × 0.95 mm surface-mount plastic package with 1.3 mm lead pitch and tin-plated terminations compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K1) | Cathode of Diode 1 | Provides dedicated low-VF discharge path for Channel 1; used in dual-rail clamping or independent signal routing. |
| 2 (K2) | Cathode of Diode 2 | Enables independent cathode connection for Channel 2 - supports differential clamping or redundant protection schemes. |
| 3 (A1/A2) | Common Anode | Shared anode node simplifies PCB layout for dual-cathode configurations; reduces trace count in compact layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring protection | Integrated structural guard ring mitigates edge breakdown during voltage transients, improving long-term reliability in automotive load-dump conditions. |
| AEC-Q101 qualification | Qualified per Automotive Electronics Council stress test standard - certified for use in engine control units, body electronics, and ADAS sensor interfaces. |
| Low thermal resistance | 625 K/W junction-to-ambient on FR4 - enables stable operation at full rated current without forced cooling in space-limited modules. |
| Pulsed reverse current limit | 0.5 µA at VR = 25 V, pulsed (δ ≤ 0.02) - ensures predictable leakage behavior during dynamic signal clamping events. |
Applications
| Automotive CAN Bus Protection | USB Port ESD Clamping |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L lines against ISO 7637-2 pulse 1/2a transients and IEC 61000-4-2 ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Dual cathode clamping diode with common anode tied to VCC, shunting negative transients to supply rail and positive transients to ground via external TVS. Use Value: 550 mV VF minimizes voltage overshoot during fast clamping; AEC-Q101 qualification ensures compliance with automotive reliability requirements. |
Use Scenario: Safeguarding USB 2.0 D+/D− data lines from ±8 kV contact ESD per IEC 61000-4-2 in portable chargers and docking stations. IC Role / Device Role / Timing Role: Low-capacitance (20 pF) dual Schottky clamp limiting line voltage swing while preserving signal rise/fall times. Use Value: Sub-µA IR prevents DC loading of high-impedance USB PHY receivers; SOT323 footprint fits tight board areas near connectors. |
| Handheld Device Power Sequencing | Industrial Sensor Signal Conditioning |
Use Scenario: Isolating backup battery from main supply and preventing backfeed in wearables and medical monitors. IC Role / Device Role / Timing Role: Dual blocking diode implementing OR-ing function with shared anode connected to system rail and separate cathodes to battery and adapter inputs. Use Value: 200 mA per diode supports typical sensor module current draw; 550 mV VF reduces dropout and extends battery runtime vs. silicon diodes. |
Use Scenario: Clamping analog sensor outputs (e.g., thermocouple amplifiers) to prevent ADC input damage from overvoltage faults. IC Role / Device Role / Timing Role: Fast-response voltage limiter placed between sensor front-end and precision op-amp input stage. Use Value: 20 pF capacitance avoids phase shift in <1 MHz sensor bandwidths; guard ring ensures stability under repeated overvoltage stress. |
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 | Same SOT323 package, 40 V VR, but 200 mA IF and higher VF (600 mV @ 100 mA); no AEC-Q101 certification. | Acceptable for commercial-grade portable electronics but not qualified for automotive under-hood use. | Select when AEC-Q101 is not required and marginally higher VF is acceptable for cost-sensitive consumer designs. |
| Vishay VS-2EDH04-M3/84A | Higher VR (45 V), same IF, but larger SOD-323 package (2.7 mm × 1.7 mm); VF = 520 mV @ 100 mA; AEC-Q101 qualified. | Offers enhanced voltage margin and lower VF but requires 35% more PCB area than SOT323. | Prefer when design allows extra footprint and needs tighter VF tolerance or extended reverse voltage headroom. |
Compared with NSR20F40NXT5G and VS-2EDH04-M3/84A, BAT854AW-QX uniquely balances AEC-Q101 compliance, minimal SOT323 footprint, and 550 mV VF - making it optimal for automotive and space-constrained industrial applications where qualification and size are non-negotiable.
Availability
BAT854AW-QX is available at Aetrix Electronics and suitable for automotive ECU protection, USB interface clamping, handheld power sequencing, and industrial sensor conditioning requiring stable component supply across production lifecycles.
Supply support for BAT854AW-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 energy-efficient solutions.
BAT854AW-QX belongs to Nexperia's AEC-Q101-qualified Schottky diode portfolio, engineered specifically for robust signal integrity and transient protection in automotive infotainment, body electronics, and ADAS subsystems.
FAQ
Is BAT854AW-QX pin-compatible with BAT54 series diodes?
No. BAT854AW-QX uses a common-anode configuration (pins 1=K1, 2=K2, 3=A1/A2), whereas BAT54 variants include common-cathode (BAT54C) and dual-series (BAT54S) topologies. Pin mapping differs fundamentally - direct substitution requires PCB redesign.
What is the maximum allowable soldering temperature profile for BAT854AW-QX?
BAT854AW-QX complies with JEDEC J-STD-020D for moisture sensitivity level 1. Peak reflow temperature is 260 °C for ≤ 30 seconds, with ramp-up rate ≤ 3 °C/s and ramp-down rate ≤ 6 °C/s - matching standard lead-free reflow profiles for SOT323 packages.
Does BAT854AW-QX support bidirectional clamping?
No. As a common-anode dual diode, it conducts only from anode to either cathode. For bidirectional clamping, external circuitry (e.g., pairing with a second BAT854AW-QX or using a dedicated bidirectional TVS) is required - the device itself provides unidirectional conduction per channel.
How does the guard ring affect layout recommendations?
The integrated guard ring improves edge breakdown immunity but requires adherence to Nexperia's recommended SOT323 footprint: 0.55 mm solder paste stencil aperture, 0.6 mm land width, and 1.325 mm center-to-center spacing. Avoid copper pours directly under the die area to prevent thermal stress concentration.
BAT854AW-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 Anode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 200mA (DC)
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAT854AW-QX FAQ
1.How can I place an order for BAT854AW-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT854AW-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 BAT854AW-QX reliable?
The price and inventory of BAT854AW-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT854AW-QX is usually 5 days.
3.What payment methods are accepted for BAT854AW-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT854AW-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT854AW-QX?
BAT854AW-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT854AW-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 BAT854AW-QX?
For technical support, including BAT854AW-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT854AW-QX requirements.
6.How does Aetrix verify that BAT854AW-QX is sourced from the original manufacturer or authorized distributors?
All BAT854AW-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 BAT854AW-QX meets industry standards.
7.What is the process for return or replacement of BAT854AW-QX?
All BAT854AW-QX units undergo pre-shipment inspection (PSI). If there is an issue with BAT854AW-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 BAT854AW-QX part is unused and in its original packaging.
Return procedure for BAT854AW-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT854AW-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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