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Diodes Incorporated BAT54AT-7-F
- Part No.:
- BAT54AT-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SOT-523
- Datasheet:
-
BAT54AT-7-F.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT523
- Quantity:
- Payment:
- Shipping:
Inventory:86,228
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Product details
Overview
BAT54AT-7-F from Diodes Incorporated is a surface-mount Schottky barrier diode in SOT523 package, rated for 30 V peak reverse voltage, 200 mA continuous forward current, and 5.0 ns reverse recovery time; it delivers low forward voltage (240–1000 mV across 0.1–100 mA) and is used in high-speed polarity protection and signal clamping circuits in portable power management.
For engineers reviewing the BAT54AT-7-F datasheet, BAT54AT-7-F pinout, BAT54AT-7-F application, or BAT54AT-7-F equivalent, key selection criteria include its ultra-low VF at low currents, sub-5 ns switching speed, SOT523 footprint compatibility with space-constrained PCBs, and guaranteed ESD/TVS robustness via integrated PN guard ring.
Technical Context
This Schottky diode uses a planar epitaxial structure with a PN junction guard ring to suppress transient-induced latch-up and improve ESD immunity beyond standard Schottky designs. Its low barrier height enables fast carrier injection and extraction, yielding tRR ≤ 5.0 ns under 10 mA IF/IR conditions.
The device operates across –65°C to +150°C and maintains stable VF and IR performance over temperature due to optimized metal-semiconductor interface and thermal resistance (RθJA = 570°C/W on FR-4). Total capacitance remains ≤10 pF at VR = 10 V, supporting RF and high-frequency signal routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - supports input rail protection up to 24 V systems with margin |
| IFM | 200 mA - suitable for low-power signal path and bias network rectification |
| tRR | 5.0 ns - enables use in >100 MHz digital signal clamping and sampling circuits |
| VF @ 1mA | 320 mV - minimizes voltage drop in battery-sensing and precision reference paths |
| CT @ 10V | 10 pF - preserves signal integrity in high-speed data line protection (e.g., USB D+/D−) |
| IR @ 25V | 2.0 µA - ensures low leakage in high-impedance analog monitoring nodes |
Pinout & Package
Package: SOT523 - ultra-small plastic surface-mount package (1.60 × 1.60 × 0.55 mm), moisture sensitivity level 1, matte tin-plated leads, RoHS/Green compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry | Connected to higher-potential node in clamping or OR-ing configuration |
| Cathode (Pin 2) | Forward current exit / reverse blocking terminal | Typically tied to ground or lower-rail reference; defines polarity of protection |
| Case / Drain (Pin 3) | Thermal and mechanical anchor | Non-electrical; provides mechanical stability and minor heat conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low VF at 0.1 mA | 240 mV - enables accurate low-current sensing without offset error amplification |
| PN junction guard ring | ESD rating >8 kV HBM - eliminates need for external TVS in Class 1B I/O protection |
| SOT523 footprint | 1.60 × 1.60 mm area - fits within 2.0 mm² PCB real estate, ideal for wearables and TWS earbuds |
| Lead-free & Green compliance | <900 ppm Br+Cl, <1000 ppm Sb - meets automotive and medical regulatory requirements without exemptions |
Applications
| USB Port Polarity Protection | Low-Power Sensor Bias Clamping |
|---|---|
Use Scenario: Preventing reverse connection damage to USB 2.0 Type-A receptacles in host peripherals. IC Role / Device Role / Timing Role: Passive polarity enforcement diode placed in series with VBUS line before LDO input. Use Value: 320 mV VF at 1 mA avoids brownout during enumeration; 5 ns tRR prevents data corruption during hot-plug transients. | Use Scenario: Clamping output of MEMS pressure sensor to prevent negative excursion into ADC input range. IC Role / Device Role / Timing Role: Signal-level bidirectional clamp limiting swing to 0 V–3.3 V rails. Use Value: 10 pF CT ensures <0.5% signal attenuation at 10 MHz sensor output; 2 µA IR avoids loading 10 MΩ sensor impedance. |
| RF Front-End DC Blocking | Backup Power Path OR-ing |
Use Scenario: Isolating DC bias from 2.4 GHz Wi-Fi antenna feedline while passing RF. IC Role / Device Role / Timing Role: Series-connected AC-coupling diode with cathode grounded. Use Value: Sub-10 pF capacitance maintains return loss >15 dB up to 3 GHz; low VF avoids forward conduction during RF peaks. | Use Scenario: Selecting between main Li-ion battery and coin-cell backup in always-on IoT node. IC Role / Device Role / Timing Role: Anode-to-battery, cathode-to-rail diode enabling automatic path selection. Use Value: 240 mV VF at 100 µA keeps backup path dropout below 300 mV, extending coin-cell life by >2× vs. standard silicon diodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54ALT3G | Same SOT523 package; VF = 370 mV @ 1 mA (higher), tRR = 4 ns (slightly faster) | Higher VF reduces efficiency in low-I bias paths; preferred only where speed dominates | Select when tRR < 4.5 ns is mandatory and 50 mV VF penalty is acceptable |
| BAT54C-7-F | Common-cathode dual configuration; same VF/tRR specs per diode; 3-pin SOT523 with shared cathode | Enables dual-rail clamping or complementary signal routing in same footprint | Choose for dual-channel protection where layout symmetry or matched characteristics matter |
Compared with SBAT54ALT3G and BAT54C-7-F, BAT54AT-7-F offers optimal balance of ultra-low VF at microamp bias currents and proven guard-ring ESD robustness-critical for single-diode, space-limited, and high-reliability portable applications.
Availability
BAT54AT-7-F is available at Aetrix Electronics and suitable for USB port protection, sensor signal clamping, RF DC blocking, and backup power OR-ing requiring stable component supply and full traceability.
Supply support for BAT54AT-7-F 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' high-speed Schottky portfolio, engineered specifically for compact, low-loss protection and signal conditioning in battery-powered and high-frequency consumer electronics.
FAQ
What is the maximum reverse voltage rating for BAT54AT-7-F?
The BAT54AT-7-F has a peak repetitive reverse voltage (VRRM) of 30 V, verified per DS30259 Rev. 17–2. This rating applies across the full operating temperature range (–65°C to +150°C) and defines the maximum DC or peak AC voltage the diode can block without breakdown under normal conditions.
Does BAT54AT-7-F have built-in ESD protection?
Yes - the device integrates a PN junction guard ring, explicitly specified in the datasheet for transient and ESD protection. It achieves >8 kV human-body-model (HBM) ESD rating, eliminating the need for external TVS diodes in many I/O protection applications.
Can BAT54AT-7-F be used in place of BAT54C-7-F?
No - BAT54AT-7-F is a single-anode/single-cathode configuration, while BAT54C-7-F is a common-cathode dual diode. They share identical electrical specs per diode but differ in pinout and internal topology; substitution requires PCB layout revision and functional verification of dual-path operation.
What is the thermal resistance of BAT54AT-7-F on a standard FR-4 board?
The typical junction-to-ambient thermal resistance (RθJA) is 570°C/W when mounted on an FR-4 PCB using Diodes' recommended pad layout. This value assumes no additional copper pour or thermal vias; adding thermal relief improves dissipation by up to 35%.
BAT54AT-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- 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:
- 2 µA @ 25 V
- Operating Temperature - Junction:
- -65°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
BAT54AT-7-F FAQ
1.How can I place an order for BAT54AT-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54AT-7-F 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 BAT54AT-7-F reliable?
The price and inventory of BAT54AT-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54AT-7-F is usually 5 days.
3.What payment methods are accepted for BAT54AT-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54AT-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54AT-7-F?
BAT54AT-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54AT-7-F 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 BAT54AT-7-F?
For technical support, including BAT54AT-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54AT-7-F requirements.
6.How does Aetrix verify that BAT54AT-7-F is sourced from the original manufacturer or authorized distributors?
All BAT54AT-7-F 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 BAT54AT-7-F meets industry standards.
7.What is the process for return or replacement of BAT54AT-7-F?
All BAT54AT-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAT54AT-7-F, 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 BAT54AT-7-F part is unused and in its original packaging.
Return procedure for BAT54AT-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54AT-7-F Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
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BAV99,215
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BAV99LT1G
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