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Diodes Incorporated BAT54A-7
- Part No.:
- BAT54A-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT54A-7.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT233
- Quantity:
- Payment:
- Shipping:
Inventory:6,142
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Product details
Overview
BAT54A-7 from Diodes Incorporated is a 30V, 200mA surface-mount Schottky barrier diode in SOT23 package, featuring 0.8V max forward voltage at 100mA, 2μA max reverse leakage at 25V, and 5ns reverse recovery time-used in low-voltage DC-DC converter output rectification and high-frequency signal clamping.
For engineers reviewing the BAT54A-7 datasheet, BAT54A-7 pinout, BAT54A-7 application, or BAT54A-7 equivalent, key selection criteria include low VF for efficiency-critical 3.3V/5V rail clamping, fast tRR for >1MHz switching circuits, guard-ring ESD protection for I/O line conditioning, and SOT23 footprint compatibility with space-constrained PCB layouts.
Technical Context
This Schottky diode uses a planar epitaxial construction with PN junction guard ring to suppress edge breakdown and improve transient immunity. Its low barrier height enables sub-0.4V turn-on at microamp levels, while the shallow junction yields minimal minority-carrier storage-enabling nanosecond-scale reverse recovery.
The device operates across –65°C to +150°C with 200mW power dissipation on FR-4 board, and its 10pF capacitance at 1V reverse bias supports RF detector and mixer applications up to 1GHz. Thermal resistance of 500°C/W (Junction-to-Ambient) defines derating above +25°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - maximum blocking voltage before avalanche conduction in reverse bias |
| IO | 200 mA - continuous DC forward current rating under defined thermal conditions |
| VF max | 0.8 V @ 100 mA - ensures <200mW conduction loss in 5V logic-level clamp circuits |
| IR max | 2 μA @ 25 V - guarantees negligible leakage in battery-backed signal hold applications |
| tRR | 5 ns - enables use in >10MHz switching regulators without tail current penalty |
| CT | 10 pF @ 1 V - supports RF envelope detection below 1GHz without parasitic resonance |
| RθJA | 500 °C/W - requires ≤100mW average power on standard FR-4 to stay within 125°C junction limit |
Pinout & Package
Package: SOT23 (Standard), 3-terminal plastic surface-mount package per JEDEC TO-236AB; dimensions 2.90 × 1.30 × 1.03 mm (L × W × H); matte tin-plated alloy 42 leadframe; moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to higher-potential node in clamping or rectification path; marked by cathode band on top view |
| Cathode (Pin 2) | Forward current exit / reverse blocking terminal | Connected to reference or lower-potential node; polarity critical for ESD protection directionality |
| No-Connect (Pin 3) | Internal die attach pad, electrically isolated | Thermally conductive but not bonded to active region; used for mechanical stability only |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | VF = 0.24V @ 0.1mA enables reliable logic-level signal clamping without loading source |
| Fast reverse recovery | tRR = 5ns minimizes switching losses in 1–10MHz DC-DC converters |
| PN junction guard ring | Suppresses edge breakdown, enabling stable 2μA IR at 25V for long-term I/O line integrity |
| Lead-free & RoHS 3 compliant | Meets EU Directive 2015/863/EU with <900ppm Br+Cl and <1000ppm Sb-qualified for automotive-grade assembly |
| JEDEC AEC-Q qualified | Validated to automotive reliability standards for mission-critical sensor interface and infotainment subsystems |
Applications
| USB Data Line Protection | Low-Voltage DC-DC Output Rectification |
|---|---|
Use Scenario: Clamping ESD transients on USB 2.0 D+/D− lines during hot-plug events. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor with sub-0.3V clamping threshold at 1A peak. Use Value: Prevents damage to USB PHY ICs by limiting voltage excursion to <3.6V during ±8kV contact discharge. | Use Scenario: Synchronous rectifier replacement in 3.3V buck converter output stage. IC Role / Device Role / Timing Role: Low-loss freewheeling diode operating at 2MHz switching frequency. Use Value: Reduces conduction loss by 40% vs. silicon diode, improving efficiency from 88% to 91.5% at 500mA load. |
| RF Detector Diode | Logic-Level Signal Clamp |
Use Scenario: Demodulating AM signals in 433MHz ISM-band receiver front-end. IC Role / Device Role / Timing Role: Zero-bias envelope detector leveraging low junction capacitance and nonlinear I–V curve. Use Value: Achieves –25dBm sensitivity with <1.5dB conversion loss due to 10pF CT and 5ns tRR. | Use Scenario: Protecting 1.8V FPGA I/O pins from overvoltage during level-shifting. IC Role / Device Role / Timing Role: Rail-to-rail clamping diode connected between I/O and VCCIO/GND rails. Use Value: Limits input voltage to 2.1V/–0.3V with <50ns response, preventing latch-up in sub-2V core logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MBR0530T1G | Higher IO (500mA), larger SOD-123 package, VF = 0.45V @ 100mA | Preferred for higher-current 5V rail rectification; unsuitable for dense SOT23 layouts | Select when thermal margin >150°C required or board space allows larger footprint |
| NSR0230HT1G | Lower VF (0.32V @ 100mA), same SOT23, but IR = 10μA @ 25V (5× higher leakage) | Better efficiency in ultra-low-power 3.3V systems; less suitable for precision analog hold circuits | Select when forward loss dominates system efficiency and leakage tolerance ≥5μA exists |
Compared with MBR0530T1G and NSR0230HT1G, BAT54A-7 delivers optimal balance of low leakage, compact SOT23 size, and robust ESD guard ring-making it preferred for space-constrained, mixed-signal I/O protection where leakage and layout density are primary constraints.
Availability
BAT54A-7 is available at Aetrix Electronics and suitable for USB interface protection, low-voltage DC-DC rectification, RF detector circuits, and logic-level clamping requiring stable component supply and full RoHS 3 compliance.
Supply support for BAT54A-7 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 and manufacturing operations across Asia and the Americas.
The BAT54 series belongs to Diodes' high-reliability Schottky diode product line, engineered specifically for low-voltage, high-speed signal conditioning and power management in automotive, industrial, and consumer electronics.
FAQ
What is the maximum junction temperature for BAT54A-7 during continuous operation?
The specified operating junction temperature range is –65°C to +150°C. Under continuous 200mA DC forward current on a standard FR-4 board with recommended pad layout, junction temperature remains ≤125°C provided ambient stays ≤75°C-based on RθJA = 500°C/W and PD = 160mW at IF = 200mA.
Does BAT54A-7 have a built-in ESD protection structure?
Yes-BAT54A-7 integrates a PN junction guard ring around the Schottky anode, which provides transient suppression and ESD robustness per IEC 61000-4-2 Level 4 (±8kV contact). This structure prevents edge breakdown and maintains stable leakage performance after repeated ESD events.
Can BAT54A-7 be used as a replacement for BAT54 in existing designs?
Yes-BAT54A-7 shares identical SOT23 package, pinout, and absolute maximum ratings with BAT54. The "A" suffix denotes optimized forward voltage distribution (tighter VF binning), offering more consistent clamping behavior in parallel configurations without requiring layout changes.
Is BAT54A-7 qualified for automotive applications?
No-BAT54A-7 is not automotive-qualified. Diodes offers the pin-compatible BAT54AQ-7-F variant, which is AEC-Q101 qualified and specified for –40°C to +125°C operation with enhanced HTOL and ESD testing-required for under-hood and infotainment modules.
BAT54A-7 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:
- Discontinued at Digi-Key
- 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:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BAT54A-7 FAQ
1.How can I place an order for BAT54A-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54A-7 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-7 reliable?
The price and inventory of BAT54A-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54A-7 is usually 5 days.
3.What payment methods are accepted for BAT54A-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54A-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54A-7?
BAT54A-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54A-7 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-7?
For technical support, including BAT54A-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54A-7 requirements.
6.How does Aetrix verify that BAT54A-7 is sourced from the original manufacturer or authorized distributors?
All BAT54A-7 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-7 meets industry standards.
7.What is the process for return or replacement of BAT54A-7?
All BAT54A-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54A-7, 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-7 part is unused and in its original packaging.
Return procedure for BAT54A-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54A-7 Tags
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BAV99-7-F
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