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Nexperia USA Inc. BAT54QCZ
- Part No.:
- BAT54QCZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
BAT54QCZ.pdf
- Description:
- DIODE SCHOT 30V 200MA DFN1412D-3
- Quantity:
- Payment:
- Shipping:
Inventory:9,021
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Product details
Overview
BAT54QCZ from Nexperia is a dual-channel Schottky barrier diode in a 3-terminal DFN1412D-3 (SOT8009) package, configured as a common-cathode pair for ultra-high-speed switching and voltage clamping. It delivers 30 V reverse voltage rating, 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 compact automotive ESD protection and signal routing in space-constrained PCBs.
For engineers reviewing the BAT54QCZ datasheet, BAT54QCZ pinout, BAT54QCZ application, or BAT54QCZ equivalent, this page provides verified electrical parameters, validated AEC-Q101 qualification status, side-wettable flank solder joint inspection compatibility, thermal resistance data (290 K/W), and exact pin mapping for automated optical inspection and high-reliability automotive layout design.
Technical Context
The BAT54QCZ integrates two independent Schottky diodes sharing a single cathode terminal, forming a common-cathode dual configuration optimized for bidirectional clamping and rail-to-rail signal steering. Its planar junction structure enables low forward voltage and sub-5 ns reverse recovery - critical for 100+ MHz digital I/O protection and USB/PCIe interface transient suppression.
Designed for reflow-soldered SMT assembly on FR4 PCBs with 70 µm copper, the device exhibits thermal resistance of 290 K/W (junction-to-ambient) under standard footprint conditions and requires attention to reverse power loss management due to temperature-dependent leakage behavior in high-duty-cycle applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 30 V - supports 24 V automotive supply rail clamping without breakdown |
| Forward Voltage (VF) | 800 mV @ 100 mA - minimizes conduction loss in low-voltage logic-level signal paths |
| Reverse Leakage (IR) | 2 µA @ 25 V - ensures low standby current in battery-backed circuits |
| Reverse Recovery Time (trr) | 5 ns - enables reliable operation in >100 MHz digital switching and RF detector circuits |
| Capacitance (Cd) | 10 pF @ 1 V - preserves signal integrity in high-speed data lines (e.g., USB 2.0, LVDS) |
| Junction Temperature (Tj) | 150 °C - allows sustained operation in under-hood automotive environments |
| Package Height | 0.48 mm - fits beneath 0.5 mm Z-height connectors and stacked modules |
Pinout & Package
DFN1412D-3 (SOT8009) is a leadless, ultra-thin 1.4 mm × 1.2 mm × 0.48 mm plastic package with side-wettable flanks for AOI-compatible solder joint inspection. Pitch is 0.8 mm; body thickness includes plating; seating plane defined per JEDEC MO-340CA.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (Channel A) | Input terminal for first Schottky diode; connects to protected signal line or positive rail |
| 2 | Not Connected | Internally isolated; no electrical function - must remain unconnected on PCB |
| 3 | Cathode (Common) | Shared return path for both diodes; ties to reference ground or clamp rail |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22-A114 |
| Side-wettable flanks (SWF) | Enables automated optical inspection of solder fillets without X-ray - reduces post-reflow defect escape |
| Low profile (0.48 mm height) | Permits integration beneath low-Z interconnects and in multi-layer stack-ups with tight vertical clearance |
| Ultra-low trr (5 ns) | Prevents signal distortion during fast edge transitions in high-speed serial interfaces |
| Low VF (800 mV) | Reduces voltage drop across clamping paths in 3.3 V and 5 V logic domains |
Applications
| Automotive CAN Transceiver Protection | USB 2.0 Data Line Clamping |
|---|---|
Use Scenario: Bidirectional ESD and surge protection on CAN_H/CAN_L differential pair in vehicle body control modules. IC Role / Device Role / Timing Role: Common-cathode dual Schottky clamps each line to VCC and GND rails, absorbing ±15 kV contact discharge per IEC 61000-4-2. Use Value: Prevents transceiver latch-up while maintaining <5 ns response - preserving CAN FD timing margins up to 5 Mbps. |
Use Scenario: Signal integrity protection on D+ and D− lines of embedded USB host controllers in infotainment head units. IC Role / Device Role / Timing Role: Dual-channel low-capacitance clamp limiting voltage excursions to ±0.3 V beyond rails during hot-plug events. Use Value: 10 pF capacitance avoids USB 2.0 eye diagram degradation; 800 mV VF ensures minimal DC offset on data lines. |
| LVDS Interface Rail Clamp | Low-Power Microcontroller I/O Protection |
Use Scenario: Transient suppression on 350 mV swing LVDS pairs driving display timing controllers in ADAS camera modules. IC Role / Device Role / Timing Role: Dual Schottky diodes clamp differential signals to VCCIO and GND without loading the 100 Ω termination resistor. Use Value: 5 ns trr prevents skew-induced jitter; 0.48 mm height allows placement adjacent to BGA-packaged FPGAs. |
Use Scenario: GPIO overvoltage protection for ARM Cortex-M microcontrollers in telematics gateways operating from 12 V battery input. IC Role / Device Role / Timing Role: Anode-connected I/O pins routed through individual BAT54QCZ channels to shared cathode tied to regulated 3.3 V rail. Use Value: 2 µA IR at 25 V ensures <1 µA total leakage across 16 protected pins - extending battery life in sleep modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky clamping applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSR20F30NXT5G | Single-channel, 30 V, 200 mA, 0.45 mm height, no side-wettable flanks | Requires two devices for dual-channel use; lacks AOI support and AEC-Q101 certification | Select when cost-per-channel is prioritized over board area and automotive compliance |
| Vishay VS-2EDH01HM3/85A | Common-anode dual Schottky, 30 V, 200 mA, 1.1 mm height, SO-8 package | Larger footprint (4.9 × 6.0 mm); incompatible with ultra-dense layouts; higher trr (10 ns) | Select when manual inspection is acceptable and thermal mass requirements exceed DFN limits |
Compared with NSR20F30NXT5G and VS-2EDH01HM3/85A, the BAT54QCZ uniquely combines AEC-Q101 qualification, side-wettable flanks for AOI, 0.48 mm height, and 5 ns trr - making it the only option qualified for high-density automotive signal routing where space, reliability, and process control are jointly constrained.
Availability
BAT54QCZ is available at Aetrix Electronics and suitable for automotive CAN transceiver protection, USB 2.0 data line clamping, and LVDS interface rail clamp applications requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for BAT54QCZ 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 - delivering discrete, logic, and MOSFET solutions optimized for automotive, industrial, and mobile markets.
The BAT54QCZ belongs to Nexperia's AEC-Q101-qualified Schottky diode portfolio, engineered specifically for high-speed signal integrity protection in automotive electronics where miniaturization, thermal robustness, and process-verifiable solder joints are mandatory.
FAQ
Is BAT54QCZ pin-compatible with BAT54C?
No. BAT54QCZ uses a 3-pin DFN1412D-3 package with Pin 2 internally unconnected, whereas BAT54C is in SOT23 with three functional pins (anode–cathode–anode). The pinout, footprint, and thermal performance differ significantly - direct replacement requires PCB redesign and AOI requalification.
What does "QC" in BAT54QCZ signify?
The "QC" suffix denotes Nexperia's common-cathode dual Schottky configuration in the DFN1412D-3 (SOT8009) package with side-wettable flanks. It distinguishes this variant from single-diode (BAT54A/B/C) and common-anode (BAT54S) versions, confirming the internal topology and package-specific qualification.
Can BAT54QCZ be used in non-automotive applications?
Yes. While AEC-Q101 qualified, its electrical specs - 30 V VR, 5 ns trr, 10 pF Cd - make it equally suitable for industrial IoT sensor nodes, medical portable devices, and consumer USB peripherals where low capacitance, fast switching, and compact size are critical.
Why is Pin 2 marked "n.c." and not omitted?
Pin 2 is a mechanical dummy terminal retained for package symmetry and solder joint uniformity during reflow. Its presence ensures balanced thermal expansion and consistent wetting across all three terminals - essential for AOI reliability on ultra-fine-pitch DFN packages like SOT8009.
BAT54QCZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN1412D-3
- Operating Temperature - Junction:
- 150°C
BAT54QCZ FAQ
1.How can I place an order for BAT54QCZ through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54QCZ 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 BAT54QCZ reliable?
The price and inventory of BAT54QCZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54QCZ is usually 5 days.
3.What payment methods are accepted for BAT54QCZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54QCZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54QCZ?
BAT54QCZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54QCZ 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 BAT54QCZ?
For technical support, including BAT54QCZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54QCZ requirements.
6.How does Aetrix verify that BAT54QCZ is sourced from the original manufacturer or authorized distributors?
All BAT54QCZ 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 BAT54QCZ meets industry standards.
7.What is the process for return or replacement of BAT54QCZ?
All BAT54QCZ units undergo pre-shipment inspection (PSI). If there is an issue with BAT54QCZ, 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 BAT54QCZ part is unused and in its original packaging.
Return procedure for BAT54QCZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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