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Diodes Incorporated BAT54Q-13
- Part No.:
- BAT54Q-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT54Q-13.pdf
- Description:
- DIODE SCHOTT 30V 200MA SOT23 10K
- Quantity:
- Payment:
- Shipping:
Inventory:7,797
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Product details
Overview
BAT54Q-13 from Diodes Incorporated is a surface-mount Schottky barrier diode in SOT23 package, rated for 30 V peak reverse voltage, 200 mA average forward current, and 0.8 V max forward voltage at 100 mA. It features PN junction guard ring for transient/ESD protection and is AEC-Q101 qualified for automotive use.
For engineers reviewing the BAT54Q-13 datasheet, BAT54Q-13 pinout, BAT54Q-13 application, or BAT54Q-13 equivalent, this part supports high-speed switching, low-loss clamping, and ESD-robust signal routing in space-constrained automotive and industrial PCBs.
Technical Context
This Schottky diode uses a metal-semiconductor junction to achieve fast reverse recovery (tRR ≤ 5.0 ns) and low forward voltage drop (VF = 0.24–0.8 V across 0.1–100 mA). Its guard ring structure enhances ruggedness against voltage transients and electrostatic discharge.
Thermal performance is defined by RθJA = 500 °C/W on FR-4 board and TJ range of –55 °C to +150 °C, supporting operation in under-hood automotive environments and industrial control modules where thermal margin is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse blocking voltage before breakdown; sets safe operating limit in clamp or flyback circuits. |
| IO | 200 mA - Continuous DC forward current rating; defines steady-state power handling in signal path or bias networks. |
| VF Max | 0.8 V @ 100 mA - Low conduction loss enables efficient voltage translation and logic-level clamping without significant IR drop. |
| IR Max | 2.0 µA @ 25 V - Minimal leakage preserves signal integrity in high-impedance sensing or battery-backed circuits. |
| tRR | 5.0 ns - Ultrafast recovery supports >100 MHz switching in RF detector, sample-and-hold, or high-frequency rectifier applications. |
| CT | 10 pF @ 1 V - Low junction capacitance minimizes signal distortion and loading in RF and high-speed digital interface protection. |
Pinout & Package
Package: SOT23 - 3-terminal surface-mount plastic package with 0.008 g mass, UL 94V-0 flammability rating, and moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to higher-potential node in clamping, OR-ing, or polarity protection circuits. |
| Cathode (Pin 2) | Forward current exit / reverse-blocking terminal | Typically tied to ground or reference rail; forms low-leakage reverse path in ESD protection networks. |
| No Connection (Pin 3) | Internal die pad, not electrically connected | Thermally conductive but isolated; used for mechanical anchoring and heat dissipation without circuit interaction. |
Key Features
| Feature | Design Value |
|---|---|
| Low turn-on voltage | VF ≤ 0.4 V at 1 mA - Enables reliable signal-level clamping below logic thresholds in 1.8 V/3.3 V systems. |
| Fast switching | tRR ≤ 5 ns - Supports clean edge detection and minimal timing skew in high-speed data line protection. |
| PN junction guard ring | Integrated transient suppression structure - Improves robustness against ISO 7637-2 pulse 1/2a/5a surges without external TVS. |
| AEC-Q101 qualification | Validated for automotive-grade reliability - Meets stress testing requirements for engine control, body electronics, and ADAS sensor interfaces. |
Applications
| Automotive Body Control Module | USB Data Line Protection |
|---|---|
Use Scenario: Clamping induced transients on LIN bus lines during load dump or relay switching. IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed between LIN transceiver and connector. Use Value: Prevents damage from ±35 V pulses while maintaining <10 pF loading to preserve 20 kbps signal integrity. | Use Scenario: ESD protection on USB 2.0 D+ and D− lines in infotainment head units. IC Role / Device Role / Timing Role: Low-capacitance shunt diode routed to chassis ground. Use Value: Passes IEC 61000-4-2 Level 4 (±15 kV air) without degrading 480 Mbps eye diagram. |
| Industrial Sensor Signal Conditioning | Power OR-ing in Dual-Rail Systems |
Use Scenario: Protecting analog outputs of 4–20 mA current-loop sensors from reverse polarity and ESD. IC Role / Device Role / Timing Role: Series-connected polarity guard at sensor output stage. Use Value: Blocks reverse connection up to 30 V while adding <0.8 V drop-within allowable loop compliance margin. | Use Scenario: Selecting between primary and backup 5 V supplies in programmable logic controllers. IC Role / Device Role / Timing Role: Low-VF forward path enabling automatic supply switchover. Use Value: Limits voltage loss to ≤0.4 V at 100 mA, reducing thermal rise and improving efficiency over MOSFET-based OR-ing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54DW-7-F | Dual-channel SOT-363 package; identical VRRM, VF, and tRR; shared cathode configuration. | Requires dual-diode topology (e.g., bidirectional data line protection); occupies larger footprint. | Select when protecting two complementary signals (e.g., RS-485 A/B) with matched characteristics. |
| NSR0230HT1G | Lower IO (200 mA same), but tighter VF spec (0.35 V typ @ 100 mA); no AEC-Q101 qualification. | Suitable for commercial-grade consumer devices; lacks automotive stress validation and PPAP support. | Choose for cost-sensitive non-automotive designs where thermal margin exceeds 500 °C/W requirement. |
Compared with SBAT54DW-7-F and NSR0230HT1G, BAT54Q-13 provides single-diode simplicity, AEC-Q101 assurance, and optimized SOT23 layout density-making it preferred for space-limited automotive ECUs requiring traceable, PPAP-capable components.
Availability
BAT54Q-13 is available at Aetrix Electronics and suitable for automotive body control modules, USB interface protection, industrial sensor conditioning, and dual-rail power OR-ing requiring stable component supply and long-term lifecycle continuity.
Supply support for BAT54Q-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 series belongs to Diodes' automotive-qualified Schottky diode product line, engineered specifically for ESD-hardened signal routing and low-loss power management in harsh-environment electronic control units.
FAQ
What is the maximum junction temperature for BAT54Q-13?
The absolute maximum junction temperature is +150 °C, with continuous operation supported from –55 °C to +150 °C. Derating begins above +25 °C ambient per the power derating curve (200 mW at 25 °C, linearly reduced to 0 mW at 125 °C ambient on FR-4).
Is BAT54Q-13 pin-compatible with BAT54CQ-13 or BAT54AQ-13?
Yes-all BAT54xQ variants share identical SOT23 pinout and mechanical footprint. The suffix denotes cathode/anode configuration: Q = single anode-cathode, AQ = anode-anode-cathode, CQ = cathode-cathode-anode, SQ = dual series. Electrical specs are identical except for internal connection topology.
Does BAT54Q-13 require special PCB layout considerations?
Yes-use the recommended SOT23 pad layout from Diodes' package outline document (P/N SOT23-3). Maintain minimum 0.25 mm solder mask dam between pins, avoid thermal relief on cathode pad, and ensure ≥1.35 mm × 0.9 mm copper area for Pin 2 to optimize thermal resistance and ESD current handling.
Can BAT54Q-13 be used in place of a standard silicon diode like 1N4148?
Yes, with trade-offs: BAT54Q-13 offers lower VF (0.8 V vs. 1.0 V) and faster tRR (5 ns vs. 4 ns), but higher IR (2 µA vs. 25 nA). It is ideal where low forward loss matters more than ultra-low leakage-e.g., power rail OR-ing-but unsuitable for precision high-impedance bias networks.
BAT54Q-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
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 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
- Capacitance @ Vr, F:
- 10pF @ 1V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
- Operating Temperature - Junction:
- -65°C ~ 150°C
BAT54Q-13 FAQ
1.How can I place an order for BAT54Q-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54Q-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 BAT54Q-13 reliable?
The price and inventory of BAT54Q-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54Q-13 is usually 5 days.
3.What payment methods are accepted for BAT54Q-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54Q-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54Q-13?
BAT54Q-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54Q-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 BAT54Q-13?
For technical support, including BAT54Q-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54Q-13 requirements.
6.How does Aetrix verify that BAT54Q-13 is sourced from the original manufacturer or authorized distributors?
All BAT54Q-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 BAT54Q-13 meets industry standards.
7.What is the process for return or replacement of BAT54Q-13?
All BAT54Q-13 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54Q-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 BAT54Q-13 part is unused and in its original packaging.
Return procedure for BAT54Q-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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