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Diodes Incorporated BAT54ATA
- Part No.:
- BAT54ATA
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT54ATA.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT233
- Quantity:
- Payment:
- Shipping:
Inventory:98,275
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Product details
Overview
BAT54ATA from Diodes Incorporated is a 30V, 200mA surface-mount Schottky barrier diode in SOT23 package, featuring 800mV max forward voltage at 100mA, 2µA max reverse leakage at 25V, and 5ns reverse recovery time-designed for low-loss clamping and high-speed switching in USB data line protection circuits.
For engineers reviewing the BAT54ATA datasheet, BAT54ATA pinout, BAT54ATA application, or BAT54ATA equivalent, key selection criteria include its low VF for minimal conduction loss, fast tRR for signal integrity in 480Mbps USB 2.0 interfaces, guard-ring-enhanced ESD robustness (IEC61000-4-2 Level 4), and SOT23 footprint compatibility with space-constrained portable electronics designs.
Technical Context
This Schottky diode uses a platinum-silicide or similar low-barrier metal-semiconductor junction to achieve sub-0.8V turn-on voltage and near-zero minority-carrier storage, enabling nanosecond-scale switching without tail current. Its PN junction guard ring structure provides defined edge termination for stable breakdown behavior under transient stress.
The device operates across –65°C to +150°C, with thermal resistance RθJA = 500°C/W on FR-4 board, limiting continuous power dissipation to 200mW at 25°C ambient. Capacitance is 10pF at 1V reverse bias, supporting high-frequency signal routing with minimal loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30V - supports DC blocking in 3.3V/5V logic rails and USB VBUS line clamping |
| IO | 200mA average - sufficient for ESD protection path current in I/O buffers and level shifters |
| VF max | 800mV @ 100mA - ensures <267mW conduction loss in 300Ω USB D+/D– lines |
| IR max | 2µA @ 25V - prevents leakage-induced offset in precision analog monitoring nodes |
| tRR | 5ns - enables clean switching in 480Mbps USB 2.0 data eye without jitter accumulation |
| CT | 10pF @ 1V - maintains signal rise/fall times >1ns in high-speed digital interfaces |
| RθJA | 500°C/W - requires derating above 70°C ambient for sustained 200mA operation |
Pinout & Package
Package: SOT23 (Standard), 3-terminal surface-mount plastic package with matte tin-plated alloy 42 leadframe; dimensions 2.90 × 1.30 × 1.03 mm (L × W × H); moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to protected signal line (e.g., USB D+); polarity marked by dot on top view |
| Cathode (Pin 2) | Forward current exit / reverse blocking node | Tied to ground or clamp rail; forms low-impedance path during ESD events |
| No-Connect (Pin 3) | Internal die attach pad | Not electrically connected; serves mechanical anchoring and thermal relief on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | Max 800mV @ 100mA reduces power loss and self-heating in battery-powered USB peripherals |
| Fast reverse recovery | 5ns tRR preserves signal integrity in high-speed data lines up to 480Mbps |
| PN junction guard ring | Provides controlled edge termination for repeatable 30V breakdown and ESD survivability |
| Lead-free & RoHS 3 compliant | Meets automotive and consumer regulatory requirements without SnPb plating or halogen additives |
Applications
| USB 2.0 Data Line Protection | Low-Voltage Rail Clamp |
|---|---|
Use Scenario: Bidirectional ESD protection on D+ and D– lines of USB 2.0 host/device ports. IC Role / Device Role / Timing Role: Passive clamping diode shunting transients to ground while maintaining signal fidelity. Use Value: 5ns tRR avoids data eye distortion; 10pF CT minimizes insertion loss at 240MHz fundamental frequency. | Use Scenario: Overvoltage clamp on 3.3V I²C bus lines in industrial sensor nodes. IC Role / Device Role / Timing Role: Low-leakage (<2µA) reverse-blocking element preventing false logic states during supply brownout. Use Value: 800mV VF ensures clamp activates before 3.3V rail exceeds ±10% tolerance, protecting downstream logic inputs. |
| RF Signal Path Isolation | High-Speed Logic Level Translation |
Use Scenario: DC blocking and transient suppression in 2.4GHz Wi-Fi antenna switch control lines. IC Role / Device Role / Timing Role: Fast-switching isolation diode preventing RF coupling into baseband control circuitry. Use Value: 10pF CT limits capacitive feedthrough below –30dB at 2.4GHz; SOT23 size fits tight RF layout constraints. | Use Scenario: Level-shifting interface between 1.8V FPGA I/O and 3.3V peripheral SPI bus. IC Role / Device Role / Timing Role: Forward-biased voltage dropper enabling bidirectional logic translation without active circuitry. Use Value: 200mA IO rating supports 20mA per I/O pin; 5ns tRR prevents timing skew across multi-bit buses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky barrier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40201MR6T1G | Same SOT23-3 package; 30V VRRM, 200mA IO, but VF = 0.55V typ @ 10mA (lower at light load) | Optimized for low-current bias networks rather than high-speed data clamping | Prefer for standby power-sensitive bias chains; avoid where 100mA VF stability matters |
| Vishay VS-2EDH01HM3/H | DO-214AC (SMA) package; 30V VRRM, 200mA IO, VF = 0.52V typ @ 10mA, tRR = 1.5ns | Higher surge rating (IFSM = 1.5A) but larger footprint and higher parasitic inductance | Select for high-reliability industrial power rails; not suitable for USB miniaturized layouts |
Compared with NSS40201MR6T1G and VS-2EDH01HM3/H, BAT54ATA offers balanced VF/tRR trade-off in SOT23, making it optimal for compact, high-speed digital interfaces where both conduction loss and switching fidelity must be simultaneously controlled.
Availability
BAT54ATA is available at Aetrix Electronics and suitable for USB interface protection, low-voltage rail clamping, RF control line isolation, and high-speed logic level translation requiring stable component supply and consistent SOT23 packaging.
Supply support for BAT54ATA 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, manufacturing, and sales operations across Asia, Europe, and North America.
The BAT54 series belongs to Diodes' general-purpose Schottky diode product line, engineered specifically for high-speed signal integrity and robust ESD protection in portable and interface-dense electronic systems.
FAQ
What is the maximum reverse voltage rating for BAT54ATA?
The BAT54ATA has a peak repetitive reverse voltage (VRRM) rating of 30V, verified per JEDEC test conditions with 100µA IR threshold. This rating applies across the full operating temperature range (–65°C to +150°C) and defines the maximum DC or peak AC voltage the device can block without breakdown in normal operation.
Does BAT54ATA have an integrated ESD protection structure?
Yes-BAT54ATA incorporates a PN junction guard ring surrounding the Schottky anode, which provides controlled edge termination to improve transient voltage withstand and ESD robustness. It meets IEC61000-4-2 Level 4 (±15kV air, ±8kV contact) when implemented with proper PCB layout and grounding.
Can BAT54ATA be used in place of BAT54CTA or BAT54STA?
No-BAT54ATA is the single-anode configuration (anode-cathode-NC), whereas BAT54CTA is common-cathode dual, and BAT54STA is common-anode dual. Pinouts and internal topology differ fundamentally; substitution requires schematic and layout revision to match terminal connectivity and functional intent.
What is the thermal resistance of BAT54ATA on a standard FR-4 PCB?
When mounted on a standard FR-4 board using Diodes' recommended pad layout (2oz copper, thermal relief), BAT54ATA exhibits a typical junction-to-ambient thermal resistance (RθJA) of 500°C/W. This value assumes no additional copper pour or thermal vias; adding those reduces RθJA proportionally based on thermal mass and conduction path.
BAT54ATA 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:
- 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:
- 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
BAT54ATA FAQ
1.How can I place an order for BAT54ATA through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54ATA 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 BAT54ATA reliable?
The price and inventory of BAT54ATA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54ATA is usually 5 days.
3.What payment methods are accepted for BAT54ATA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54ATA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54ATA?
BAT54ATA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54ATA 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 BAT54ATA?
For technical support, including BAT54ATA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54ATA requirements.
6.How does Aetrix verify that BAT54ATA is sourced from the original manufacturer or authorized distributors?
All BAT54ATA 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 BAT54ATA meets industry standards.
7.What is the process for return or replacement of BAT54ATA?
All BAT54ATA units undergo pre-shipment inspection (PSI). If there is an issue with BAT54ATA, 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 BAT54ATA part is unused and in its original packaging.
Return procedure for BAT54ATA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54ATA 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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