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Nexperia USA Inc. BAT54-QVL
- Part No.:
- BAT54-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT54-QVL.pdf
- Description:
- DIODE SCHOTTKY 30V 200MA TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,414
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Product details
Overview
BAT54-QVL from Nexperia is a planar Schottky barrier diode with integrated guard ring for stress protection, housed in an SOT23 (TO-236AB) surface-mount package. It delivers 30 V reverse voltage rating, 800 mV forward voltage at 100 mA, 2 µA reverse leakage at 25 V, 10 pF capacitance at 1 V, and 5 ns reverse recovery time - enabling ultra-high-speed switching in automotive power rail clamping and reverse polarity protection circuits.
For engineers reviewing the BAT54-QVL datasheet, BAT54-QVL pinout, BAT54-QVL application, or BAT54-QVL equivalent, key selection criteria include its AEC-Q101 qualification, low VF/Cd/trr trade-off, SOT23 footprint compatibility, and dual-anode/cathode configuration with NC terminal - critical for compact ESD-tolerant interface protection and 12 V/24 V automotive subsystems.
Technical Context
This discrete Schottky diode uses a planar silicon structure with guard ring to suppress edge breakdown under transient stress, supporting reliable operation up to 150 °C junction temperature. Its low 5 ns trr and 10 pF Cd enable clean signal integrity in high-frequency line termination and USB/RS-485 bus clamping.
The device operates within 250 mW total power dissipation at 25 °C ambient on FR4 PCB, with thermal resistance of 500 K/W (junction-to-ambient), and supports pulsed forward currents up to 600 mA (non-repetitive) - making it suitable for transient overvoltage suppression in start-stop automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 30 V - maximum blocking capability for 24 V automotive systems with margin against load dump transients |
| Forward Voltage (VF) | 800 mV @ 100 mA - minimizes conduction loss in reverse polarity protection paths |
| Reverse Leakage (IR) | 2 µA @ 25 V - ensures low standby current in always-on vehicle modules |
| Diode Capacitance (Cd) | 10 pF @ 1 V - preserves signal rise/fall times in >100 MHz data line clamping |
| Reverse Recovery Time (trr) | 5 ns - enables stable operation in >100 MHz switching applications without tail current |
| Junction Temperature (Tj) | 150 °C - supports under-hood placement in engine control units and body controllers |
| Package | SOT23 (TO-236AB) - 2.9 mm × 1.3 mm × 1.0 mm footprint compatible with standard reflow soldering profiles |
Pinout & Package
Encapsulated in a 3-terminal SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pitch), the BAT54-QVL features a single Schottky diode with isolated anode and cathode terminals plus one not-connected pin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward current entry point; connects to positive supply or signal source in clamping configurations |
| 2 | Not Connected (n.c.) | Electrically isolated terminal; no internal bond wire or die connection - must remain unconnected on PCB |
| 3 | Cathode (K) | Forward current exit point; ties to ground or return path in reverse polarity protection circuits |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use per stress test requirements - supports PPAP documentation for Tier-1 suppliers |
| Integrated guard ring | Suppresses edge breakdown during ESD events and voltage transients - improves long-term reliability in noisy environments |
| Low forward voltage | 800 mV max at 100 mA - reduces power loss and heat generation in battery-fed circuits |
| Ultra-low capacitance | 10 pF at 1 V reverse bias - maintains signal integrity in high-speed digital interfaces (e.g., CAN FD, LIN) |
| Fast reverse recovery | 5 ns typical - prevents cross-conduction in synchronous rectifier and snubberless flyback designs |
Applications
| Automotive Reverse Polarity Protection | High-Speed Data Line Clamping |
|---|---|
Use Scenario: Protecting 12 V/24 V infotainment head units from incorrect battery connection during service. IC Role / Device Role / Timing Role: Discrete Schottky diode placed in series with main power input to block reverse current flow. Use Value: 800 mV VF limits voltage drop to <1% of nominal rail, preserving system startup margin while surviving 30 V transients. |
Use Scenario: Clamping RS-485 differential pairs in ADAS camera links exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance Schottky clamp between signal lines and ground to shunt fast transients without distorting edges. Use Value: 10 pF Cd and 5 ns trr prevent signal overshoot/undershoot beyond ±100 mV at 50 Mbps data rates. |
| USB Interface ESD Protection | Engine Control Unit Power Rail Clamp |
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D− lines in telematics gateways. IC Role / Device Role / Timing Role: Fast-switching Schottky diode configured as bidirectional rail-to-rail clamp to absorb ±8 kV contact discharge. Use Value: 2 µA IR at 25 V ensures negligible leakage into high-impedance USB PHY inputs during idle states. |
Use Scenario: Suppressing load-dump transients (>40 V, 100 ms) on 5 V microcontroller supply rails in engine management systems. IC Role / Device Role / Timing Role: Parallel-connected Schottky diode clamping rail to battery during alternator regulation faults. Use Value: 30 V VR rating with guard ring enables safe clamping at 33 V peak without avalanche degradation over 100,000 cycles. |
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 NSR0230HT1G | Same SOT23 package, but 30 V VR and 480 mV VF @ 100 mA - lower forward drop but higher IR (5 µA @ 25 V) | Better efficiency in low-voltage DC-DC output rectification; less suitable for low-leakage always-on monitoring circuits | Select when minimizing conduction loss outweighs leakage sensitivity - e.g., 3.3 V power sequencing networks |
| Vishay VS-2EDH02HM3/85A | DO-214AC package (larger), 20 V VR, 470 mV VF @ 100 mA, 15 pF Cd - higher capacitance and different footprint | Used in industrial AC-DC front-end clamping where board space allows larger packages and higher surge tolerance | Choose only if SOT23 footprint is not required and 20 V VR suffices - not drop-in for automotive 24 V systems |
Compared with NSR0230HT1G and VS-2EDH02HM3/85A, BAT54-QVL uniquely balances AEC-Q101 compliance, 30 V VR margin, 10 pF Cd, and SOT23 scalability - making it the preferred choice for space-constrained automotive signal and power rail protection where leakage, speed, and qualification are jointly critical.
Availability
BAT54-QVL is available at Aetrix Electronics and suitable for automotive reverse polarity protection, high-speed data line clamping, USB interface ESD protection, and engine control unit power rail clamp applications requiring stable component supply across production lifecycles.
Supply support for BAT54-QVL 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 specializing in high-performance, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
BAT54-QVL belongs to Nexperia's AEC-Q101-qualified Schottky diode product line, engineered specifically for robust transient suppression and low-loss power routing in automotive electronic control units and infotainment systems.
FAQ
Is BAT54-QVL pin-compatible with standard BAT54 variants like BAT54C or BAT54S?
No - BAT54-QVL is a single-diode variant with Pin 1 = Anode, Pin 2 = n.c., Pin 3 = Cathode. BAT54C is a dual-common-cathode configuration (Pins 1+3 = Anodes, Pin 2 = Cathode), and BAT54S is dual-series (Pin 1 = Anode, Pin 2 = Cathode/Anode, Pin 3 = Cathode). PCB layout and schematic symbol must be updated to match the single-diode + NC pinout.
What is the maximum continuous forward current for BAT54-QVL at 85 °C ambient?
At 85 °C ambient, the maximum continuous forward current is derated to approximately 120 mA based on thermal resistance (500 K/W) and 250 mW total power dissipation limit. This ensures junction temperature remains below 150 °C with adequate margin under sustained load conditions on standard FR4 PCBs.
Does BAT54-QVL support wave soldering, and what are the recommended footprint dimensions?
Yes - BAT54-QVL is qualified for both reflow and wave soldering. For wave soldering, Nexperia specifies a footprint with 2.8 mm length, 4.5 mm width, 1.4 mm pad width (2×), and 2.2 mm spacing between pads (Fig. 7). Solder mask openings must fully expose copper lands to ensure consistent wetting and void-free joints.
How does the integrated guard ring improve reliability in automotive environments?
The guard ring mitigates electric field crowding at the silicon periphery, preventing premature edge breakdown during repetitive ESD events (e.g., ISO 10605 15 kV air discharge) and load-dump transients. This extends operational lifetime in under-hood modules where thermal cycling and voltage surges coexist over 15-year vehicle service life.
BAT54-QVL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- 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
- Supplier Device Package:
- TO-236AB
- Operating Temperature - Junction:
- 150°C
BAT54-QVL FAQ
1.How can I place an order for BAT54-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54-QVL 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 BAT54-QVL reliable?
The price and inventory of BAT54-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54-QVL is usually 5 days.
3.What payment methods are accepted for BAT54-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54-QVL?
BAT54-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54-QVL 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 BAT54-QVL?
For technical support, including BAT54-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54-QVL requirements.
6.How does Aetrix verify that BAT54-QVL is sourced from the original manufacturer or authorized distributors?
All BAT54-QVL 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 BAT54-QVL meets industry standards.
7.What is the process for return or replacement of BAT54-QVL?
All BAT54-QVL units undergo pre-shipment inspection (PSI). If there is an issue with BAT54-QVL, 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 BAT54-QVL part is unused and in its original packaging.
Return procedure for BAT54-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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