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Diodes Incorporated BAT54AQ-13
- Part No.:
- BAT54AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT54AQ-13.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT233
- Quantity:
- Payment:
- Shipping:
Inventory:9,025
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Product details
Overview
BAT54AQ-13 from Diodes Incorporated is a 30 V, 200 mA surface-mount Schottky barrier diode in SOT23 package, featuring 800 mV max forward voltage at 100 mA, 2 µA max reverse leakage at 25 V, and 5 ns reverse recovery time; it is AEC-Q101 qualified and used in automotive power rail clamping and USB port protection circuits.
For engineers reviewing the BAT54AQ-13 datasheet, BAT54AQ-13 pinout, BAT54AQ-13 application, or BAT54AQ-13 equivalent, key selection criteria include low VF for efficiency-critical 3.3 V/5 V rail steering, fast tRR for high-frequency switching nodes, PN junction guard ring for ESD robustness in exposed I/O paths, and SOT23 footprint compatibility with space-constrained PCB layouts.
Technical Context
This Schottky diode uses a platinum-silicide or similar low-barrier metal-semiconductor junction to achieve sub-0.8 V turn-on voltage and minimal minority-carrier storage, enabling nanosecond-scale switching without tail current. Its integrated PN junction guard ring provides defined breakdown characteristics and transient immunity per ISO 10605 ESD testing.
The device operates across –55°C to +150°C with 500°C/W junction-to-ambient thermal resistance on FR-4 board, and supports repetitive peak forward current up to 300 mA and non-repetitive surge current of 600 mA for short-duration load dump events in automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum DC blocking voltage before avalanche; sets upper limit for rail-clamp placement in 24 V automotive systems. |
| IO | 200 mA - Continuous DC forward current rating; defines steady-state power path capability in signal-level OR-ing and polarity protection. |
| VF Max | 800 mV @ 100 mA - Forward voltage drop limiting conduction loss in low-voltage power routing (e.g., 3.3 V USB VBUS). |
| IR Max | 2 µA @ 25 V - Reverse leakage current ensuring minimal standby power drain in always-on battery-backed circuits. |
| tRR | 5 ns - Reverse recovery time enabling use in >10 MHz switching applications such as RF detector biasing or high-speed data line clamping. |
| CT | 10 pF @ 1 V - Junction capacitance affecting high-frequency signal integrity; suitable for <1 GHz signal path protection without excessive loading. |
| AEC-Q101 | Qualified - Validated for automotive underhood and infotainment applications per stress test requirements including HTOL, TCT, and ESD HBM ≥2 kV. |
Pinout & Package
Package: SOT23 - 3-terminal surface-mount plastic package (2.9 mm × 1.3 mm × 1.0 mm), RoHS-compliant matte tin finish on alloy 42 leadframe, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to higher-potential rail in clamp or OR-ing configuration; requires trace width matching 200 mA continuous current. |
| Cathode (Pin 2) | Forward current exit / reverse voltage reference | Typically tied to system ground or lower-rail node; serves as ESD return path via guard ring structure. |
| No-Connect (Pin 3) | Internal die pad, electrically isolated | Thermally conductive but not bonded; may be grounded for improved thermal dissipation or left floating per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 800 mV max at 100 mA enables <10 mW conduction loss in 3.3 V supply paths, reducing thermal load in dense PCBs. |
| Fast switching | 5 ns tRR supports clean transient suppression in USB 2.0 data lines and CAN FD stub protection without signal distortion. |
| PN junction guard ring | Provides controlled 30 V breakdown and passes ±8 kV contact ESD per IEC 61000-4-2, eliminating need for external TVS in cost-sensitive designs. |
| AEC-Q101 qualification | Validated for automotive temperature cycling, high-temperature operating life, and mechanical shock-enabling direct use in ADAS camera modules and body control units. |
Applications
| Automotive Power Rail Clamping | USB Port Polarity Protection |
|---|---|
Use Scenario: Suppressing load dump transients on 12 V battery-fed microcontroller power rails in door module ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping diode placed between VBAT and MCU VDD, conducting only during overvoltage events above 30 V. Use Value: Limits peak rail voltage to ≤30 V using inherent Zener-like breakdown, avoiding need for discrete TVS and saving 1.2 mm² board area. | Use Scenario: Preventing damage from reversed USB cable insertion in infotainment head unit Type-A receptacles. IC Role / Device Role / Timing Role: Anode connected to upstream VBUS, cathode to downstream load; blocks reverse current while adding <0.8 V drop in normal operation. Use Value: Enables fail-safe hot-plug operation with no additional control logic, maintaining 5 V delivery within ±2% regulation tolerance. |
| High-Speed Signal Line Clamp | OR-ing Diode for Dual-Supply Systems |
Use Scenario: Protecting LVDS clock inputs in radar sensor modules from ESD strikes during assembly and field operation. IC Role / Device Role / Timing Role: Low-capacitance (10 pF) shunt clamp between differential pair and ground, activated only above 30 V common-mode swing. Use Value: Preserves signal edge rate >1 V/ns while meeting ISO 10605 Level 4 (15 kV air) without degrading 100 MHz clock jitter. | Use Scenario: Selecting between primary and backup 3.3 V supplies in telematics gateway power management. IC Role / Device Role / Timing Role: Anode tied to each supply rail, cathodes joined to common output; conducts only from higher-voltage source. Use Value: Achieves <10 µs switchover with <0.8 V dropout, eliminating cross-conduction risk and supporting seamless firmware updates during supply transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54ALT1G | Same SOT23 package, 30 V VRRM, but 300 mA IO rating and 700 mV VF max at 100 mA. | Higher current handling suits 5 V USB-C PD sink paths; slightly lower VF improves efficiency in thermally constrained layouts. | Select when average forward current exceeds 200 mA or when 100 mV VF reduction justifies alternate sourcing. |
| NSR0230P2T5G | 0.2 A rating, 30 V VRRM, but 0.45 V VF typ at 100 mA and 15 pF CT - optimized for ultra-low-loss 1.8 V–3.3 V logic rail clamping. | Lower VF benefits battery-powered IoT sensors; higher CT limits use to <50 MHz signal paths. | Prefer for sub-1 V logic interface protection where leakage and speed are secondary to conduction loss. |
Compared with SBAT54ALT1G and NSR0230P2T5G, BAT54AQ-13 balances AEC-Q101 compliance, 2 µA IR at 25 V, and 5 ns tRR-making it optimal for automotive signal integrity and USB 2.0 ESD protection where reliability, leakage, and timing precision are jointly critical.
Availability
BAT54AQ-13 is available at Aetrix Electronics and suitable for automotive body electronics, USB interface protection, and high-speed signal clamping requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BAT54AQ-13 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 IATF 16949-certified facilities.
The BAT54Q/AQ/CQ/SQ series belongs to Diodes' automotive-qualified Schottky diode product line, engineered specifically for ESD-hardened power routing and signal integrity preservation in safety-critical vehicle subsystems.
FAQ
What is the maximum junction temperature for BAT54AQ-13 during continuous operation?
The BAT54AQ-13 has an operating junction temperature range of –55°C to +150°C. Under continuous 200 mA forward current on a standard FR-4 board with recommended pad layout, junction temperature rise is limited by its 500°C/W RθJA, allowing safe operation up to +125°C ambient if power dissipation remains below 200 mW.
Does BAT54AQ-13 support bidirectional ESD protection?
No-BAT54AQ-13 is a unidirectional Schottky diode. Its PN junction guard ring enhances robustness against positive transients on the anode, but it does not provide symmetrical clamping for negative-going surges. For bidirectional protection, a paired BAT54CQ or dedicated TVS array is required.
Can BAT54AQ-13 replace BAT54 in non-automotive designs?
Yes-BAT54AQ-13 shares identical electrical specs and SOT23 footprint with the commercial-grade BAT54, but adds AEC-Q101 qualification, PPAP capability, and tighter process controls. It is fully backward-compatible and preferred for new designs targeting automotive or industrial longevity requirements.
What is the significance of the "Q" suffix in BAT54AQ-13?
The "Q" suffix denotes Diodes Incorporated's automotive-grade product family: Q-marked parts undergo additional stress screening, lot traceability, and IATF 16949-aligned manufacturing. The "AQ" variant specifically indicates the anode-cathode-no-connect pinout configuration (Pin 1 = anode, Pin 2 = cathode, Pin 3 = NC) within the BAT54Q series.
BAT54AQ-13 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
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BAT54AQ-13 FAQ
1.How can I place an order for BAT54AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54AQ-13 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 BAT54AQ-13 reliable?
The price and inventory of BAT54AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54AQ-13 is usually 5 days.
3.What payment methods are accepted for BAT54AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54AQ-13?
BAT54AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54AQ-13 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 BAT54AQ-13?
For technical support, including BAT54AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54AQ-13 requirements.
6.How does Aetrix verify that BAT54AQ-13 is sourced from the original manufacturer or authorized distributors?
All BAT54AQ-13 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 BAT54AQ-13 meets industry standards.
7.What is the process for return or replacement of BAT54AQ-13?
All BAT54AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54AQ-13, 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 BAT54AQ-13 part is unused and in its original packaging.
Return procedure for BAT54AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54AQ-13 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
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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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