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Nexperia USA Inc. BAT54QC-QZ
- Part No.:
- BAT54QC-QZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
BAT54QC-QZ.pdf
- Description:
- DIODE SCHOT 30V 200MA DFN1412D-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
BAT54QC-Q from Nexperia is a planar Schottky barrier diode in a DFN1412D-3 (SOT8009) leadless SMD package, designed for ultra-high-speed switching and voltage clamping in automotive-grade circuits. It delivers 800 mV forward voltage at 100 mA, 2 µA reverse leakage at 25 V, 5 ns reverse recovery time, and 10 pF capacitance at 1 V - enabling low-loss signal routing in power rail protection and ESD-sensitive interfaces.
For engineers reviewing the BAT54QC-Q datasheet, BAT54QC-Q pinout, BAT54QC-Q application, or BAT54QC-Q equivalent, this device is selected for compact automotive body control modules, USB port protection circuits, and high-frequency clamp networks where low VF, fast trr, side-wettable flanks for AOI, AEC-Q101 qualification, and 0.48 mm profile are critical design requirements.
Technical Context
The BAT54QC-Q employs a planar Schottky junction structure optimized for minimal forward conduction loss and rapid carrier recombination. Its 5 ns trr and 10 pF Cd support operation beyond 100 MHz in clamping and steering roles, while thermal resistance of 290 K/W (junction-to-ambient, FR4 PCB) defines its derating envelope under pulsed loads.
Rated for 30 V reverse voltage and 200 mA continuous forward current, it operates across −55 °C to +150 °C ambient with junction temperature limited to 150 °C. The n.c. (pin 2) terminal isolates internal die attachment, eliminating parasitic coupling in high-isolation signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 30 V - sets maximum blocking capability in clamp or flyback protection without breakdown. |
| Forward Voltage (VF) | 800 mV @ 100 mA - minimizes conduction loss and self-heating in low-voltage rail clamping. |
| Reverse Recovery Time (trr) | 5 ns - enables reliable operation in >100 MHz switching nodes and high-speed data line protection. |
| Diode Capacitance (Cd) | 10 pF @ 1 V - preserves signal integrity in USB 2.0 and CAN FD interface protection paths. |
| Reverse Leakage (IR) | 2 µA @ 25 V - ensures low standby power draw in always-on automotive sensor supply rails. |
| Package Height | 0.48 mm - fits beneath low-profile connectors and in space-constrained ADAS camera modules. |
| AEC-Q101 Qualified | Yes - validated for automotive underhood and cabin applications per stress test standard. |
Pinout & Package
Encapsulated in the DFN1412D-3 (SOT8009) leadless plastic package, the BAT54QC-Q measures 1.4 mm × 1.2 mm × 0.48 mm with side-wettable flanks for automated optical inspection of solder joints. The ultra-low profile and 0.8 mm pitch support fine-pitch PCB assembly in compact ECUs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward current entry point; connects to higher-potential node in clamping or steering configuration. |
| 2 | Not Connected (n.c.) | Internally isolated; no electrical function - eliminates routing conflict and reduces parasitic coupling. |
| 3 | Cathode (K) | Forward current exit and reverse-blocking terminal; ties to reference or ground in protection circuits. |
Key Features
| Feature | Design Value |
|---|---|
| Low Forward Voltage | 800 mV @ 100 mA - reduces power dissipation by >30% vs. comparable silicon diodes in 3.3 V rail clamps. |
| Ultra-Fast Switching | 5 ns trr - prevents signal distortion in 480 Mbps USB 2.0 data lines during transient suppression. |
| Side-Wettable Flanks | SOT8009 package geometry - enables 100% AOI coverage of solder fillets without X-ray inspection. |
| AEC-Q101 Qualification | Qualified for automotive use - supports deployment in door module ECUs without additional reliability screening. |
| Low Capacitance | 10 pF @ 1 V - maintains >1 GHz impedance bandwidth in RF front-end ESD protection networks. |
Applications
| Automotive Body Control Unit (BCU) | USB 2.0 Port Protection |
|---|---|
Use Scenario: Clamping transients on LIN bus and power window motor driver outputs in BCU modules exposed to load dump and inductive kick. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between protected line and battery rail, conducting only during overvoltage events. Use Value: 30 V VR rating withstands ISO 7637-2 Pulse 5a; 5 ns trr avoids false triggering during fast edge transitions in 20 kbps LIN signaling. |
Use Scenario: ESD and overvoltage protection on D+ and D− lines of automotive infotainment USB ports. IC Role / Device Role / Timing Role: Low-capacitance steering diode shunting ±15 kV HBM ESD pulses to VBUS or GND. Use Value: 10 pF Cd preserves signal rise/fall times; 800 mV VF ensures minimal DC offset in differential data pairs during normal operation. |
| Industrial Sensor Interface | Low-Power IoT Node Power Rail |
Use Scenario: Reverse polarity and overvoltage protection for 24 V analog sensor inputs in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Series-connected Schottky diode blocking reverse current while passing nominal 24 V supply with minimal drop. Use Value: 2 µA IR at 25 V prevents measurable leakage error in µA-range current-loop sensors; 0.48 mm height allows stacking under DIN-rail mounting hardware. |
Use Scenario: Supply rail isolation and backfeed prevention in battery-powered BLE sensor nodes with dual-source (battery + USB) charging. IC Role / Device Role / Timing Role: Load switch diode preventing reverse current flow from Li-ion cell into USB VBUS when unplugged. Use Value: 800 mV VF limits voltage loss to <2.5% on 3.3 V rail; AEC-Q101 qualification ensures long-term stability in temperature-cycled deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSR0230P2T5G | Same DFN1412-3 package, but VF = 450 mV @ 100 mA (lower), trr = 1.5 ns (faster), VR = 30 V (same). | Higher speed and lower VF suit USB 3.0 Gen 1 (5 Gbps) applications; lacks AEC-Q101 qualification. | Select when ultra-low VF and sub-2 ns trr are required and automotive qualification is not mandated. |
| Vishay VSB1040-G3-08 | DFN1608 package (1.6 mm × 0.8 mm), VF = 420 mV @ 100 mA, VR = 40 V, trr = 2 ns, no AEC-Q101. | Wider VR margin and smaller footprint fit space-constrained consumer wearables; no automotive validation. | Choose for non-automotive portable electronics needing tighter VR margin and smaller area than SOT8009. |
Compared with NSR0230P2T5G and VSB1040-G3-08, the BAT54QC-Q trades slightly higher VF and slower trr for guaranteed AEC-Q101 compliance and side-wettable flanks - making it the sole choice for production automotive modules requiring AOI-ready, qualified discrete protection.
Availability
BAT54QC-Q is available at Aetrix Electronics and suitable for automotive body control units, USB 2.0 port protection circuits, and industrial sensor interfaces requiring stable component supply with full traceability and lifecycle continuity.
Supply support for BAT54QC-Q 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 essential efficiency-enhancing components, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and mobile markets.
The BAT54QC-Q belongs to Nexperia's AEC-Q101-qualified Schottky diode product line, engineered specifically for automotive signal integrity and power rail protection where reliability, miniaturization, and process compatibility are mandatory.
FAQ
Is BAT54QC-Q suitable for USB 2.0 data line protection?
Yes. With 10 pF capacitance at 1 V and 5 ns reverse recovery time, the BAT54QC-Q maintains signal integrity on D+ and D− lines up to 480 Mbps. Its low VF avoids DC bias shift, and side-wettable flanks ensure AOI-compatible solder joint inspection in high-volume USB connector assemblies.
What does the 'n.c.' pin (pin 2) mean for layout and routing?
Pin 2 is internally not connected - it serves only as a mechanical anchor and thermal path, with no electrical function. PCB footprints must omit copper connection to this pad; routing traces near it requires no clearance adjustment, and thermal vias may be placed directly beneath it to enhance heat dissipation.
How does AEC-Q101 qualification impact design-in for non-automotive applications?
AEC-Q101 qualification confirms extended temperature operation (−55 °C to +150 °C), robust HTRB/ACLT stress performance, and manufacturing process controls - providing higher confidence in long-term reliability for industrial and medical applications, even if automotive use is not required.
Can BAT54QC-Q replace BAT54C in existing designs?
No direct drop-in replacement: BAT54C uses SOT23-3 packaging (3.0 mm × 1.4 mm × 1.1 mm), while BAT54QC-Q uses DFN1412D-3 (1.4 mm × 1.2 mm × 0.48 mm). Footprint, thermal behavior, and solder process differ significantly; redesign of land pattern, stencil, and reflow profile is required for migration.
BAT54QC-QZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 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
- Capacitance @ Vr, F:
- 10pF @ 1V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN1412D-3
- Operating Temperature - Junction:
- 150°C
BAT54QC-QZ FAQ
1.How can I place an order for BAT54QC-QZ through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54QC-QZ 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 BAT54QC-QZ reliable?
The price and inventory of BAT54QC-QZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54QC-QZ is usually 5 days.
3.What payment methods are accepted for BAT54QC-QZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54QC-QZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54QC-QZ?
BAT54QC-QZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54QC-QZ 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 BAT54QC-QZ?
For technical support, including BAT54QC-QZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54QC-QZ requirements.
6.How does Aetrix verify that BAT54QC-QZ is sourced from the original manufacturer or authorized distributors?
All BAT54QC-QZ 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 BAT54QC-QZ meets industry standards.
7.What is the process for return or replacement of BAT54QC-QZ?
All BAT54QC-QZ units undergo pre-shipment inspection (PSI). If there is an issue with BAT54QC-QZ, 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 BAT54QC-QZ part is unused and in its original packaging.
Return procedure for BAT54QC-QZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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