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Nexperia USA Inc. BAT54A-QVL
- Part No.:
- BAT54A-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT54A-QVL.pdf
- Description:
- DIODE ARR SCHOTTKY 30V TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,872
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Product details
Overview
BAT54A-Q from Nexperia is a dual common-anode Schottky barrier diode in SOT23 package, designed for ultra-high-speed switching and reverse polarity protection in automotive-grade systems. It features 30 V reverse voltage rating, 800 mV max forward voltage at 100 mA, 2 µA max reverse leakage at 25 V, 10 pF capacitance at 1 V, and 5 ns reverse recovery time - enabling low-loss clamping and fast signal routing in power management and interface circuits.
For engineers reviewing the BAT54A-Q datasheet, BAT54A-Q pinout, BAT54A-Q application, or BAT54A-Q equivalent, key selection criteria include its AEC-Q101 qualification, dual-diode common-anode configuration, low VF/Cd/trr trade-off, and suitability for line termination and voltage clamping in space-constrained automotive ECUs and infotainment modules.
Technical Context
This device integrates two independent Schottky diodes sharing a common anode terminal (Pin 3), forming a compact dual-diode structure optimized for bidirectional signal protection and rail-to-rail clamping. Its planar construction with guard ring enhances ESD robustness and thermal stability under repetitive surge conditions.
The SOT23 package supports high-density PCB layouts while maintaining thermal resistance of 500 K/W (junction-to-ambient, free air). Operation is specified across −55 °C to +150 °C ambient, with junction temperature limited to 150 °C and peak non-repetitive forward current rated at 600 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 30 V - defines maximum blocking capability before breakdown; suitable for 24 V automotive supply rail clamping |
| Forward Voltage (VF) | 800 mV @ 100 mA - enables low conduction loss in power path protection and logic-level translation |
| Reverse Leakage (IR) | 2 µA @ 25 V - ensures minimal standby current in battery-backed circuits and always-on domains |
| Capacitance (Cd) | 10 pF @ 1 V - supports >100 MHz signal integrity in USB, CAN, and LVDS line termination |
| Reverse Recovery (trr) | 5 ns - allows clean switching in >50 MHz clock distribution and high-frequency PWM feedback paths |
| Peak Forward Current (IFSM) | 600 mA - withstands transient surges during load dump or hot-swap events without failure |
| Power Dissipation (Ptot) | 250 mW @ Tamb ≤ 25 °C - sets practical continuous current limit to ~150 mA in standard FR4 layout |
Pinout & Package
Encapsulated in a standard SOT23 (TO-236AB) surface-mount plastic package measuring 2.9 mm × 1.3 mm × 1.0 mm with 1.9 mm lead pitch and tin-plated terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K1) | Cathode of Diode 1 | Provides dedicated cathode connection for first Schottky diode; routed to protected signal or supply rail |
| 2 (K2) | Cathode of Diode 2 | Independent cathode for second diode; enables dual-rail clamping or differential signal protection |
| 3 (A1/A2) | Common Anode | Shared anode node tied to reference potential (e.g., VCC or ground); simplifies PCB routing and reduces component count |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors |
| Guard ring structure | Improves ruggedness against ESD and localized thermal stress during overvoltage transients |
| Low 10 pF capacitance | Maintains signal edge fidelity in high-speed digital interfaces without adding timing skew |
| 5 ns reverse recovery | Eliminates minority-carrier storage delay, preventing shoot-through in synchronous rectifier topologies |
| SOT23 footprint compatibility | Enables drop-in replacement for BAT54, BAT54C, and other dual-Schottky variants in legacy designs |
Applications
| Automotive Body Control Module (BCM) | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Protecting LIN bus and sensor I/O lines from load dump and ESD in door modules and lighting controllers. IC Role / Device Role / Timing Role: Dual-cathode Schottky clamp limiting voltage excursions to <3.3 V or <5 V rails while preserving signal rise/fall times. Use Value: Prevents MCU I/O damage during 12 V system transients without degrading 20 kbps LIN communication timing. |
Use Scenario: Clamping D+ and D− lines to VBUS and GND in automotive USB charging ports. IC Role / Device Role / Timing Role: Common-anode dual diode provides symmetrical bidirectional clamping with matched VF and Cd. Use Value: Maintains USB 2.0 eye diagram integrity up to 480 Mbps by limiting capacitance to 10 pF per line. |
| Industrial PLC Digital Input Stage | Reverse Polarity Protection for 24 V Sensors |
Use Scenario: Conditioning 24 V dry-contact inputs subject to field wiring reversals and inductive kickback. IC Role / Device Role / Timing Role: Fast-switching Schottky pair routes valid input signals while shunting reverse energy to common rail. Use Value: Enables sub-100 ns response to contact closure without false triggering from di/dt-induced coupling. |
Use Scenario: Safeguarding 24 V industrial sensors connected via unshielded cables prone to miswiring. IC Role / Device Role / Timing Role: Common-anode configuration places diodes in series with supply path, blocking reverse current flow. Use Value: Limits power dissipation to <200 mW during reverse connection, avoiding thermal shutdown or fuse blow. |
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 NSS40201MR6T1G | Same SOT23-3 package, but single-anode/dual-cathode topology; VF = 750 mV @ 100 mA; trr = 4 ns | Requires reversed PCB layout (anode on Pin 3 vs cathodes on Pins 1/2); better for rail-to-rail clamping than common-anode biasing | Select when clamping to separate positive/negative rails rather than a shared reference |
| Vishay VS-3BAP05-M3/84A | Higher VR = 40 V; VF = 850 mV @ 100 mA; Cd = 12 pF; not AEC-Q101 qualified | Supports 36 V industrial systems but lacks automotive qualification and has higher capacitance | Prefer for non-automotive 24/36 V control systems where AEC compliance is unnecessary |
Compared with BAT54A-Q, the NSS40201MR6T1G offers faster switching but requires layout adaptation, while the VS-3BAP05-M3/84A trades qualification and capacitance for higher voltage margin - making BAT54A-Q optimal for AEC-compliant, high-speed, low-capacitance dual-clamp roles.
Availability
BAT54A-Q is available at Aetrix Electronics and suitable for automotive body control modules, USB 2.0 interface protection, and industrial PLC digital input stages requiring stable component supply and long-term lifecycle support.
Supply support for BAT54A-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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
BAT54A-Q belongs to Nexperia's AEC-Q101-qualified Schottky diode family, engineered specifically for robust signal integrity and power path protection in harsh automotive environments.
FAQ
Is BAT54A-Q suitable for 48 V automotive systems?
No. BAT54A-Q has a maximum reverse voltage rating of 30 V, making it unsuitable for direct use in 48 V architectures. It is rated for 12 V and 24 V automotive systems where transient clamping up to ±30 V is sufficient. For 48 V applications, consider higher-voltage alternatives such as PMEG3010CPX (30 V) with derating or PMEG4010CPX (40 V), both AEC-Q101 qualified.
Can BAT54A-Q replace BAT54 in existing designs?
Yes - BAT54A-Q shares identical pinout, package, and electrical specifications with BAT54 but adds AEC-Q101 qualification and enhanced guard ring protection. No layout or firmware changes are needed; it is a direct drop-in upgrade for automotive programs requiring extended reliability validation.
What is the thermal derating behavior above 25 °C ambient?
Ptot decreases linearly from 250 mW at 25 °C to zero at 150 °C junction temperature. With Rth(j-a) = 500 K/W, usable power drops to ~125 mW at 75 °C ambient and ~50 mW at 125 °C ambient - requiring current reduction or heatsinking in high-temperature enclosures.
Does BAT54A-Q support wave soldering?
Yes. The SOT23 package is qualified for both reflow and wave soldering per Nexperia's recommended footprints (Fig. 6 and Fig. 7). Wave soldering requires controlled preheat (≤100 °C), peak temperature of 260 °C for ≤5 s, and proper solder mask definition to avoid bridging between Pins 1–2 and Pin 3.
BAT54A-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
- Diode Configuration:
- 1 Pair Common Anode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 200mA (DC)
- 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
- Operating Temperature - Junction:
- 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BAT54A-QVL FAQ
1.How can I place an order for BAT54A-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54A-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 BAT54A-QVL reliable?
The price and inventory of BAT54A-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54A-QVL is usually 5 days.
3.What payment methods are accepted for BAT54A-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54A-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54A-QVL?
BAT54A-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54A-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 BAT54A-QVL?
For technical support, including BAT54A-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54A-QVL requirements.
6.How does Aetrix verify that BAT54A-QVL is sourced from the original manufacturer or authorized distributors?
All BAT54A-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 BAT54A-QVL meets industry standards.
7.What is the process for return or replacement of BAT54A-QVL?
All BAT54A-QVL units undergo pre-shipment inspection (PSI). If there is an issue with BAT54A-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 BAT54A-QVL part is unused and in its original packaging.
Return procedure for BAT54A-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54A-QVL 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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