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Diodes Incorporated BAT54CQ-13
- Part No.:
- BAT54CQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT54CQ-13.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT233
- Quantity:
- Payment:
- Shipping:
Inventory:3,394
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Product details
Overview
BAT54CQ-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-designed for low-loss clamping and high-speed switching in automotive power rail protection circuits.
For engineers reviewing the BAT54CQ-13 datasheet, BAT54CQ-13 pinout, BAT54CQ-13 application, or BAT54CQ-13 equivalent, key selection criteria include its AEC-Q101 qualification, PN junction guard ring for ESD/transient robustness, RoHS-compliant "Green" construction, and thermal resistance of 500 °C/W on FR-4 board.
Technical Context
This dual-anode common-cathode Schottky diode integrates two independent 30 V/200 mA diodes in one SOT23-3 package, sharing cathode terminal (Pin 3) with anodes on Pins 1 and 2. Its low VF and fast tRR enable efficient flyback energy recirculation and signal-level clamping without minority-carrier storage delay.
The device employs a PN junction guard ring to suppress edge breakdown and enhance transient immunity-critical for automotive load-dump and ISO 7637-2 pulse suppression. It operates across –55 °C to +150 °C and is manufactured in IATF 16949-certified facilities with PPAP capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - supports 24 V automotive systems with 25 % margin against load-dump transients |
| IO | 200 mA - continuous DC current rating for signal-level or auxiliary power path rectification |
| VF Max | 800 mV @ 100 mA - minimizes conduction loss in low-voltage bias networks and level-shifters |
| IR Max | 2 µA @ 25 V - ensures low standby leakage in always-on sensor interface circuits |
| tRR | 5 ns - enables clean switching in >10 MHz clock line clamping and RF detector applications |
| RθJA | 500 °C/W - defines thermal derating on standard FR-4 PCB; limits usable power to ~120 mW at +85 °C ambient |
| CT | 10 pF @ 1 V - maintains signal integrity in high-frequency data line protection up to ~1.6 GHz |
Pinout & Package
Package: SOT23-3, surface-mount plastic package with matte tin finish on Alloy 42 leadframe; moisture sensitivity level 1 per J-STD-020; weight 0.008 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Independent Schottky anode for first diode element; connects to input node requiring clamping or OR-ing |
| Pin 2 | Anode 2 | Independent Schottky anode for second diode element; enables dual-path protection or dual-rail sensing |
| Pin 3 | Cathode (Common) | Shared cathode terminal tied to reference rail (e.g., VCC or ground); defines common return path |
Key Features
| Feature | Design Value |
|---|---|
| PN junction guard ring | Suppresses edge breakdown under ESD stress (IEC 61000-4-2 Level 4) and improves long-term reliability in harsh environments |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and UHAST-enables deployment in engine control and body electronics |
| Lead-free & halogen-free | Meets RoHS 3 (2015/863/EU) and "Green" definition (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb); supports eco-compliant manufacturing |
| SOT23 footprint compatibility | Enables drop-in replacement for BAT54 series and compatible dual-Schottky diodes without PCB redesign |
Applications
| Automotive Power Rail Protection | USB Data Line Clamping |
|---|---|
Use Scenario: Suppressing load-dump transients on 12 V/24 V battery-fed ECUs. IC Role / Device Role / Timing Role: Dual-anode Schottky clamp limiting reverse voltage to ≤30 V while sinking surge current. Use Value: Prevents downstream regulator damage during ISO 7637-2 Pulse 5a events without adding TVS cost or capacitance. | Use Scenario: Protecting USB 2.0 D+/D− lines from ESD and overvoltage. IC Role / Device Role / Timing Role: Low-capacitance (10 pF), fast-response clamping diode referenced to VBUS or GND. Use Value: Maintains signal integrity up to 480 Mbps while meeting IEC 61000-4-2 ±15 kV contact discharge requirements. |
| Low-Voltage Bias Network OR-ing | High-Speed Signal Level Shifting |
Use Scenario: Combining redundant 3.3 V supplies in industrial controllers. IC Role / Device Role / Timing Role: Dual-anode diode enabling automatic source selection with minimal forward drop. Use Value: Achieves <100 mV dropout at 10 mA bias current-reducing power loss vs. MOSFET-based ideal diodes. | Use Scenario: Translating 1.8 V logic signals to 3.3 V domains in FPGA I/O banks. IC Role / Device Role / Timing Role: Fast-switching Schottky clamp defining upper/lower voltage rails for level translation. Use Value: Enables sub-ns propagation delay with no storage time penalty-critical for DDR timing margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54CWT1G | Same VRRM, IO, and SOT23-3 pinout; VF = 750 mV @ 100 mA (50 mV lower); tRR = 4 ns | Marginally faster switching and lower conduction loss; identical AEC-Q101 qualification | Select when optimizing for lowest possible forward drop in high-duty-cycle bias networks |
| BAT54C-7-F | Same electrical specs and package; differs only in packaging (3,000 pcs/reel vs. 10,000 pcs/reel) and RoHS status (non-"Green") | Not qualified to AEC-Q101; lacks PN guard ring; intended for commercial-grade applications | Select only for non-automotive, cost-sensitive volume production where qualification and ESD robustness are not required |
Compared with SBAT54CWT1G and BAT54C-7-F, BAT54CQ-13 delivers guaranteed automotive qualification, enhanced ESD resilience via guard ring, and full halogen/antimony compliance-making it the sole choice for safety-critical or environmentally regulated designs.
Availability
BAT54CQ-13 is available at Aetrix Electronics and suitable for automotive power management, USB interface protection, industrial controller OR-ing, and high-speed logic level shifting requiring stable component supply and full AEC-Q101 traceability.
Supply support for BAT54CQ-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, manufacturing, and sales operations across Asia, Europe, and North America.
The BAT54Q/AQ/CQ/SQ series belongs to Diodes' AEC-Q101-qualified Schottky diode product line, engineered specifically for automotive subsystems demanding high reliability, low VF, and robust transient immunity in compact SOT23 packages.
FAQ
What is the maximum operating temperature for BAT54CQ-13?
The BAT54CQ-13 is rated for junction and storage temperatures from –55 °C to +150 °C. Its thermal resistance (RθJA = 500 °C/W) means that at +85 °C ambient, the maximum allowable power dissipation is approximately 120 mW to keep TJ ≤ 150 °C. Derating follows the curve in Figure 4 of DS39323 Rev. 3–2.
Is BAT54CQ-13 pin-compatible with BAT54C-7-F?
Yes-both devices use the SOT23-3 package with identical pinout: Pin 1 = Anode 1, Pin 2 = Anode 2, Pin 3 = Common Cathode. Mechanical dimensions, pad layout, and soldering profiles match per Diodes' package outline documentation. Electrical performance and qualification differ, but PCB footprint is fully interchangeable.
Does BAT54CQ-13 support bidirectional ESD protection?
No-it is a unidirectional dual-Schottky diode with common cathode configuration, optimized for clamping positive transients to VCC or ground. For bidirectional protection, external series resistors and complementary diodes (e.g., BAT54SQ variant) or dedicated TVS arrays are required per IEC 61000-4-2 test setup.
How does the PN junction guard ring improve reliability?
The integrated PN junction guard ring reduces electric field crowding at the silicon edge, suppressing premature avalanche breakdown during ESD events and repetitive transients. This extends device lifetime under ISO 7637-2 Pulse 1/2/5 stress and improves parametric stability after 1000+ temperature cycles per AEC-Q101 stress testing protocols.
BAT54CQ-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 Cathode
- 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
BAT54CQ-13 FAQ
1.How can I place an order for BAT54CQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54CQ-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 BAT54CQ-13 reliable?
The price and inventory of BAT54CQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54CQ-13 is usually 5 days.
3.What payment methods are accepted for BAT54CQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54CQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54CQ-13?
BAT54CQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54CQ-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 BAT54CQ-13?
For technical support, including BAT54CQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54CQ-13 requirements.
6.How does Aetrix verify that BAT54CQ-13 is sourced from the original manufacturer or authorized distributors?
All BAT54CQ-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 BAT54CQ-13 meets industry standards.
7.What is the process for return or replacement of BAT54CQ-13?
All BAT54CQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54CQ-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 BAT54CQ-13 part is unused and in its original packaging.
Return procedure for BAT54CQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54CQ-13 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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