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Nexperia USA Inc. BAT54C-QR
- Part No.:
- BAT54C-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT54C-QR.pdf
- Description:
- DIODE ARR SCHOTTKY 30V TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:73,655
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Product details
Overview
BAT54C-QR from Nexperia is a dual common-cathode Schottky barrier diode in SOT23 package, rated for 30 V reverse voltage, 800 mV forward voltage at 100 mA, and 5 ns reverse recovery time, with AEC-Q101 qualification for automotive line termination and reverse polarity protection.
For engineers reviewing the BAT54C-QR datasheet, BAT54C-QR pinout, BAT54C-QR application, or BAT54C-QR equivalent, this device is selected for ultra-high-speed switching where low VF, low Cd (10 pF), and fast trr are critical in space-constrained PCB layouts.
Technical Context
This dual-diode configuration shares a common cathode (Pin 3) with independent anodes (Pins 1 and 2), enabling compact dual-channel clamping or steering without discrete pairing. Its planar Schottky structure with integrated guard ring ensures robust ESD and transient stress tolerance.
Designed for pulsed operation (tp ≤ 300 µs, δ ≤ 0.02), it delivers stable VF across 0.1–100 mA (240–800 mV) and maintains IR ≤ 2 µA at VR = 25 V, while thermal resistance Rth(j-a) = 500 K/W reflects its SOT23 FR4-mount limitation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 30 V - Maximum blocking capability before breakdown; defines safe operating range in 24 V automotive systems. |
| Forward Voltage (VF) | 800 mV @ 100 mA - Low conduction loss enables efficient clamping and signal steering with minimal voltage drop. |
| Reverse Recovery Time (trr) | 5 ns - Enables operation beyond 100 MHz switching frequencies in high-speed digital interfaces. |
| Diode Capacitance (Cd) | 10 pF @ 1 V - Minimizes signal distortion and crosstalk in RF and data-line termination applications. |
| Reverse Current (IR) | 2 µA @ 25 V - Ensures low leakage in battery-sensitive reverse-polarity protection circuits. |
| Peak Forward Current (IFSM) | 600 mA - Supports surge handling during hot-plug or load-dump transients in automotive ECUs. |
Pinout & Package
Encapsulated in SOT23 (TO-236AB), a 3-terminal surface-mount plastic package measuring 2.9 mm × 1.3 mm × 1.0 mm with 1.9 mm lead pitch and standard FR4 footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (Diode 1) | Input node for first Schottky path; used independently for dual-rail clamping or OR-ing. |
| 2 | Anode (Diode 2) | Second independent input node; allows shared-cathode dual-channel routing on dense PCBs. |
| 3 | Common Cathode | Single output/return node for both diodes; reduces trace count and simplifies layout. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood environments (−40 °C to +125 °C junction), supporting ASIL-B system integration. |
| Integrated guard ring | Enhances ruggedness against ESD and voltage transients without external protection components. |
| Low capacitance (10 pF) | Preserves signal integrity in USB, CAN FD, and LVDS line termination without added filtering. |
| Pulsed rating compliance | Specified for tp ≤ 300 µs, δ ≤ 0.02 - matches real-world digital edge and clamp pulse profiles. |
Applications
| Automotive Power Rail Protection | High-Speed Data Line Clamping |
|---|---|
Use Scenario: Reverse polarity connection in 12 V/24 V vehicle infotainment power inputs. IC Role / Device Role / Timing Role: Dual-anode Schottky acts as back-to-back clamping pair with common cathode tied to rail. Use Value: Prevents damage from accidental battery reversal while maintaining <800 mV drop during normal operation. |
Use Scenario: ESD and overshoot suppression on USB 2.0 D+/D− lines near connector. IC Role / Device Role / Timing Role: Low-Cd Schottky clamps transients to VDD/VSS without distorting 480 Mbps data edges. Use Value: 5 ns trr and 10 pF capacitance avoid signal degradation, meeting USB-IF eye diagram requirements. |
| Dual-Rail Signal Steering | Ultra-Fast Logic-Level Translation |
Use Scenario: Selecting between two 3.3 V logic sources feeding a single microcontroller input. IC Role / Device Role / Timing Role: Anodes accept independent inputs; common cathode routes OR-ed output to MCU pin. Use Value: Sub-ns switching enables clean selection of asynchronous signals without cross-talk or latch-up risk. |
Use Scenario: Level-shifting between 1.8 V FPGA I/O and 3.3 V sensor interface with minimal delay. IC Role / Device Role / Timing Role: Forward-biased Schottky provides passive translation with no active circuitry or supply needed. Use Value: 240 mV VF at 0.1 mA ensures valid logic HIGH at 3.3 V side even with weak pull-ups. |
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 NSR20F30HT1G | Single diode, SOD-123FL package; VF = 450 mV @ 200 mA; trr = 1.8 ns; no AEC-Q101 rating. | Lacks dual configuration and automotive qualification; suitable only for non-automotive, single-path clamping. | Select when lowest trr is critical and dual functionality is unnecessary. |
| Vishay VS-4EUH02-M3/86A | Dual common-cathode; VF = 520 mV @ 200 mA; trr = 12 ns; TO-236AB package; AEC-Q101 qualified. | Higher VF increases conduction loss; slower trr limits use above ~50 MHz; same footprint. | Choose if higher IF rating (200 mA continuous) outweighs speed and voltage-drop penalties. |
Compared with NSR20F30HT1G and VS-4EUH02-M3/86A, BAT54C-QR uniquely balances AEC-Q101 compliance, dual-channel topology, 5 ns trr, and 800 mV VF in SOT23-making it optimal for space-limited automotive signal integrity designs requiring both speed and qualification.
Availability
BAT54C-QR is available at Aetrix Electronics and suitable for automotive power rail protection, high-speed data line clamping, and dual-rail signal steering requiring stable component supply and full traceability.
Supply support for BAT54C-QR 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 technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
BAT54C-QR belongs to Nexperia's AEC-Q101-qualified Schottky diode portfolio, engineered specifically for automotive signal integrity and power protection where speed, low VF, and ruggedness are mandatory.
FAQ
Is BAT54C-QR suitable for continuous DC operation?
Yes - it supports 200 mA continuous forward current at Tamb ≤ 25 °C per diode, with derating to zero at 150 °C junction temperature. Its 250 mW total power dissipation limit requires thermal design consideration on FR4 PCBs, especially above 85 °C ambient.
What does the "-QR" suffix indicate in BAT54C-QR?
The "-QR" suffix denotes Nexperia's automotive-grade variant: Q indicates AEC-Q101 qualification, and R specifies tape-and-reel packaging per EIA-481 standard, with 3000 units per reel and moisture sensitivity level (MSL) 1 for unlimited floor life.
Can BAT54C-QR replace BAT54C in non-automotive designs?
Yes - BAT54C-QR shares identical electrical specs and SOT23 footprint with BAT54C but adds AEC-Q101 qualification and tighter process controls. It is fully backward-compatible and preferred for new designs targeting long-term reliability, even outside automotive.
How is the common cathode (Pin 3) used in reverse polarity protection?
In reverse polarity protection, Pin 3 connects to the protected system's VCC rail, while Pins 1 and 2 connect to separate input sources (e.g., main battery and backup supply). Only the source with higher potential conducts, preventing backfeed and enabling seamless source switchover.
BAT54C-QR 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 Cathode
- 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
BAT54C-QR FAQ
1.How can I place an order for BAT54C-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54C-QR 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 BAT54C-QR reliable?
The price and inventory of BAT54C-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54C-QR is usually 5 days.
3.What payment methods are accepted for BAT54C-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54C-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54C-QR?
BAT54C-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54C-QR 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 BAT54C-QR?
For technical support, including BAT54C-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54C-QR requirements.
6.How does Aetrix verify that BAT54C-QR is sourced from the original manufacturer or authorized distributors?
All BAT54C-QR 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 BAT54C-QR meets industry standards.
7.What is the process for return or replacement of BAT54C-QR?
All BAT54C-QR units undergo pre-shipment inspection (PSI). If there is an issue with BAT54C-QR, 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 BAT54C-QR part is unused and in its original packaging.
Return procedure for BAT54C-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54C-QR 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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