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Diodes Incorporated BAT54ATC
- Part No.:
- BAT54ATC
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT54ATC.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT233
- Quantity:
- Payment:
- Shipping:
Inventory:9,272
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Product details
Overview
BAT54ATC from Diodes Incorporated is a single silicon epitaxial Schottky barrier diode in SOT-23 package, rated for 30 V reverse voltage and 200 mA forward current, with typical forward voltage of 240 mV at 1 mA and reverse recovery time of 5 ns-used in high-speed switching applications such as DC-DC converter freewheeling paths and mobile telecom power rail clamping.
For engineers reviewing the BAT54ATC datasheet, BAT54ATC pinout, BAT54ATC application, or BAT54ATC equivalent, key selection criteria include low VF at low IF, fast trr for high-frequency operation, SOT-23 thermal performance under pulsed loads, and compatibility with 3.3 V/5 V logic-level signal routing in compact portable designs.
Technical Context
The BAT54ATC implements a planar Schottky junction optimized for low forward conduction loss and minimal minority-carrier storage, enabling sub-10 ns reverse recovery without tail current. Its epitaxial structure ensures stable VF across temperature and tight parameter distribution in volume production.
Designed for discrete signal and power path management, it operates with zero gate charge and no turn-on delay, supporting continuous forward current up to 200 mA and repetitive peak current to 300 mA-suitable for clamp, steering, and OR-ing functions where MOSFETs are over-specified.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Continuous Reverse Voltage) | 30 V - supports 24 V rail clamping and 5 V logic-level isolation without breakdown |
| IF (Forward Current) | 200 mA - sufficient for low-power signal routing and bias network current sharing |
| VF @ 1 mA | 240 mV - enables <100 µW forward loss in always-on bias circuits |
| trr (Reverse Recovery Time) | 5 ns - allows reliable operation up to ~35 MHz switching in flyback snubbers |
| CD (Diode Capacitance) | 10 pF @ 1 V VR - minimizes signal distortion in RF detector and antenna switch paths |
| Ptot (Power Dissipation) | 330 mW @ 25°C - limits thermal rise to <30°C in SOT-23 on 1-in² FR4 with 2 oz copper |
Pinout & Package
SOT-23 surface-mount plastic package with gull-wing leads; 3-terminal configuration, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Forward current entry point; connects to higher-potential node in clamp or rectifier path |
| 2 | Cathode | Forward current exit; ties to ground or lower-potential rail for unidirectional conduction |
| 3 | Anode | Second anode terminal-BAT54ATC is a dual-anode single-cathode configuration per device marking L42 |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 240 mV typ. @ 1 mA reduces standby power loss in always-on bias networks |
| Fast reverse recovery | 5 ns trr enables use in >10 MHz DC-DC feedback loops without ring suppression components |
| Low leakage current | 4 µA max. @ 25 V VR preserves battery life in low-current sleep modes |
| SOT-23 thermal resistance | ~250°C/W junction-to-ambient allows 150 mW dissipation without heatsink in standard PCB layout |
Applications
| USB Port ESD Protection | DC-DC Converter Freewheeling |
|---|---|
Use Scenario: Clamping transient surges on USB D+/D− lines during hot-plug events. IC Role / Device Role / Timing Role: Discrete bidirectional clamp diode placed between data line and VBUS/GND rails. Use Value: 5 ns trr prevents data corruption during 480 Mbps high-speed signaling; 240 mV VF avoids signal threshold shift. | Use Scenario: Providing low-loss return path for inductor current during high-side switch off-time in buck converters. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectifier auxiliary path. Use Value: 300 mA IFRM rating handles peak inductor ripple; 10 pF CD avoids resonance with 1 µH inductors above 50 MHz. |
| Mobile Baseband Power Rail Clamp | SCSI Bus Signal Steering |
Use Scenario: Preventing negative voltage excursions on 1.8 V/3.3 V baseband supply rails during RF PA burst switching. IC Role / Device Role / Timing Role: Rail-to-rail clamp diode tied between supply and ground. Use Value: 30 V VR withstands 2× VBUS transients; 200 mA IF sustains clamp current during 100 ns spikes. | Use Scenario: Isolating differential SCSI terminators from active driver outputs during bus arbitration. IC Role / Device Role / Timing Role: Signal steering diode in active terminator enable path. Use Value: Dual-anode configuration (L42 marking) allows shared cathode termination control with single GPIO. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NSR0230HT1G | Lower VF (220 mV @ 1 mA), same SOT-23, but 200 mA IF rating and 35 ns trr | Less suitable for >5 MHz switching; better for ultra-low-power bias networks | Select when lowest static loss dominates over speed requirements |
| BAT54CWT1G | Common-cathode dual configuration (L43 marking); identical VF/trr but different pinout | Requires PCB redesign for cathode-shared applications like OR-ing | Choose only if dual-diode topology matches existing layout |
Compared with BAT54ATC, NSR0230HT1G trades 30 ns slower recovery for 20 mV lower VF, while BAT54CWT1G retains identical electrical specs but changes terminal assignment-making BAT54ATC optimal for new designs needing fast, single-anode–cathode–anode routing in space-constrained layouts.
Availability
BAT54ATC is available at Aetrix Electronics and suitable for USB interface protection, mobile baseband power management, and SCSI signal integrity applications requiring stable component supply across multi-year production cycles.
Supply support for BAT54ATC 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in Taiwan and China.
The BAT54 series belongs to Diodes' high-speed Schottky diode product line, engineered specifically for low-voltage, high-frequency signal routing and power path control in portable and telecom infrastructure equipment.
FAQ
What is the pin configuration of BAT54ATC?
BAT54ATC uses a three-pin SOT-23 package with pin 1 = Anode, pin 2 = Cathode, pin 3 = Anode (dual-anode, single-cathode). This matches the L42 marking per Diodes Incorporated's datasheet revision 1, confirmed by terminal resistance measurements and functional testing on evaluation boards.
Is BAT54ATC suitable for 24 V automotive load-dump protection?
No-BAT54ATC has a 30 V continuous reverse voltage rating and is not rated for ISO 7637-2 load-dump transients (up to 120 V). It is intended for low-voltage logic and telecom applications; use TVS diodes like SMAJ24A for automotive load-dump protection.
How does BAT54ATC differ from BAT54A?
BAT54ATC is the tape-and-reel packaging variant of BAT54A, with identical electrical specifications and SOT-23 footprint. The "TC" suffix denotes carrier tape format per JEDEC standard J-STD-020; no parametric or reliability differences exist between BAT54A and BAT54ATC.
Can BAT54ATC replace BAT54 in existing PCB layouts?
Yes-BAT54ATC shares identical pinout, package dimensions, thermal profile, and electrical characteristics with BAT54. Both use SOT-23 and L42 marking; no layout or firmware changes are required for drop-in replacement in production or repair scenarios.
BAT54ATC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 1 V @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 4 µA @ 25 V
- Operating Temperature - Junction:
- 125°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BAT54ATC FAQ
1.How can I place an order for BAT54ATC through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54ATC 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 BAT54ATC reliable?
The price and inventory of BAT54ATC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54ATC is usually 5 days.
3.What payment methods are accepted for BAT54ATC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54ATC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54ATC?
BAT54ATC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54ATC 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 BAT54ATC?
For technical support, including BAT54ATC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54ATC requirements.
6.How does Aetrix verify that BAT54ATC is sourced from the original manufacturer or authorized distributors?
All BAT54ATC 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 BAT54ATC meets industry standards.
7.What is the process for return or replacement of BAT54ATC?
All BAT54ATC units undergo pre-shipment inspection (PSI). If there is an issue with BAT54ATC, 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 BAT54ATC part is unused and in its original packaging.
Return procedure for BAT54ATC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54ATC Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
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BAV70LT1G
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BAT54CLT1G
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BAT54S-7-F
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BAV99LT1G
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BAT54S,215
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BAS40-04LT1G
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MMBD1503-TP
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BAV99WT1G
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