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Diodes Incorporated BAT54-7
- Part No.:
- BAT54-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT54-7.pdf
- Description:
- DIODE SCHOTTKY 30V 200MA SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,639
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Product details
Overview
BAT54-7 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 for low-loss clamping, polarity protection, and high-frequency rectification in power management circuits.
For engineers reviewing the BAT54-7 datasheet, BAT54-7 pinout, BAT54-7 application, or BAT54-7 equivalent, key selection criteria include forward voltage drop at target current, reverse leakage under operating bias, thermal derating on FR-4 PCBs, and compatibility with automated SMT assembly for space-constrained consumer and industrial power rails.
Technical Context
This Schottky diode uses a planar silicon structure with PN junction guard ring to suppress transient-induced avalanche and improve ESD robustness (HBM >8kV). Its low barrier height enables sub-0.4V turn-on at microamp levels while maintaining 30V reverse blocking capability.
The device operates across –65°C to +150°C, with thermal resistance of 500°C/W (junction-to-ambient, FR-4 board) and 180°C/W (junction-to-case), requiring careful layout for sustained 200mA operation above 70°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - maximum DC or repetitive peak reverse voltage before breakdown; sets upper limit for clamp or blocking applications |
| IO | 200 mA - average rectified forward current under specified thermal conditions; defines continuous power handling on standard FR-4 |
| VF max | 0.8 V @ 100 mA - ensures minimal conduction loss in low-voltage rail steering or OR-ing circuits |
| IR max | 2 μA @ 25 V - guarantees negligible leakage in battery-backed or high-impedance sensing nodes |
| tRR | 5 ns - enables use in >10 MHz switching topologies without significant reverse recovery loss |
| CT | 10 pF @ 1 V - limits capacitive loading in RF detector or fast signal routing paths |
Pinout & Package
Package: SOT23 (Standard), 3-terminal plastic surface-mount package per JEDEC TO-236AB; dimensions 2.90 × 1.30 × 1.025 mm (L × W × H); matte tin-plated alloy 42 leadframe; RoHS-compliant "Green" molding compound (UL 94V-0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry | Connected to higher-potential node in rectifier/clamp configuration; marked by cathode band on package top view |
| Cathode (Pin 2) | Forward current exit / reverse blocking terminal | Connected to lower-potential node or ground; carries full reverse voltage during off-state |
| No-connect (Pin 3) | Internal die attach pad | Electrically isolated; serves mechanical anchoring and thermal path; must not be soldered to signal traces |
Key Features
| Feature | Design Value |
|---|---|
| PN junction guard ring | Enables 8kV HBM ESD rating and transient immunity without external TVS in low-energy interfaces |
| Lead-free & halogen-free construction | Meets RoHS 3 (2015/863/EU), <900 ppm Br/Cl, <1000 ppm Sb; eliminates hazardous substance compliance risk in global OEM BOMs |
| JEDEC-qualified reliability | Qualified to AEC-Q200 stress test standards for automotive-grade stability; suitable for industrial control modules |
| Low thermal resistance junction-to-case | 180°C/W enables localized heat sinking via Pin 3 pad when mounted on thermally enhanced PCB copper areas |
Applications
| USB Port Polarity Protection | DC-DC Converter Output Clamp |
|---|---|
Use Scenario: Preventing damage from reversed USB cable insertion in portable chargers and peripherals. IC Role / Device Role / Timing Role: Low-VF series blocking diode placed between VBUS and downstream load. Use Value: 0.4V typical VF at 10mA minimizes voltage drop and maintains 4.75–5.25V USB spec compliance. | Use Scenario: Snubbing flyback voltage spikes in synchronous buck converter output stages. IC Role / Device Role / Timing Role: Fast-recovery clamp diode across low-side MOSFET or inductor. Use Value: 5ns tRR prevents shoot-through during dead-time transitions and reduces EMI generation. |
| Signal-Level Clamping | Reverse Battery Protection |
Use Scenario: Limiting analog sensor input voltage to MCU ADC pins within safe range. IC Role / Device Role / Timing Role: Biased Schottky clamp to VDD and GND rails. Use Value: 10pF CT avoids signal distortion up to 10MHz; 2μA IR preserves high-impedance source integrity. | Use Scenario: Blocking reverse current flow in 12V automotive accessories during battery jump-start events. IC Role / Device Role / Timing Role: High-side series protection diode in main power feed. Use Value: 30V VRRM withstands load-dump transients; 200mA IO supports continuous accessory loads up to 2.4W. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54LT1G | Same VRRM, IO, and SOT23 package; 0.75V VF max @ 100mA (0.05V lower); 1.5μA IR max @ 25V | Slightly lower conduction loss and leakage; identical thermal profile and footprint | Select when optimizing for ultra-low-power battery monitoring or precision rail clamping |
| BAT54C-7-F | Complementary dual-diode version in same SOT23 package; shares identical single-diode specs per channel | Used where two independent Schottky functions (e.g., dual-rail clamp or OR-ing) are needed in same footprint | Choose for space-constrained dual-path designs-no performance trade-off, only functional expansion |
Compared with SBAT54LT1G and BAT54C-7-F, BAT54-7 offers baseline Schottky performance with verified automotive-grade qualification, broader distributor availability, and direct compatibility with legacy SOT23 reflow profiles-making it optimal for cost-sensitive, high-volume industrial power management.
Availability
BAT54-7 is available at Aetrix Electronics and suitable for USB power delivery, DC-DC converter snubbing, signal-level clamping, and reverse battery protection requiring stable component supply across production lifecycles.
Supply support for BAT54-7 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' general-purpose Schottky diode product line, engineered for high-reliability power management in consumer, industrial, and automotive systems where low forward voltage and fast switching are critical.
FAQ
What is the maximum junction temperature for continuous operation?
The BAT54-7 has an operating junction temperature range of –65°C to +150°C. For continuous 200mA operation, thermal design must ensure junction temperature stays below 150°C-derating begins at +70°C ambient per the 200mW power dissipation curve, requiring adequate copper area and airflow on FR-4 PCBs.
Is BAT54-7 suitable for automotive applications?
The BAT54-7 is qualified to AEC-Q200 standards for passive components and meets JEDEC reliability requirements, but it is not the automotive-grade variant. For production automotive use, Diodes specifies BAT54Q-7-F with extended temperature screening and PPAP documentation-BAT54-7 is appropriate for industrial and commercial automotive-adjacent systems.
How does the PN junction guard ring improve robustness?
The integrated PN junction guard ring surrounds the active Schottky region to distribute electric field gradients during voltage transients, preventing localized avalanche and suppressing ESD-induced latch-up. This structure enables >8kV HBM ESD rating without external protection components in low-energy signal paths.
Can BAT54-7 replace BAT54A or BAT54C in existing designs?
Yes-BAT54-7, BAT54A-7-F, BAT54C-7-F, and BAT54S-7-F share identical electrical specs and SOT23 package; they differ only in cathode marking and internal connection (single, common-anode dual, common-cathode dual, series dual). Pin-for-pin replacement is valid if circuit topology matches the internal configuration.
BAT54-7 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
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
- Operating Temperature - Junction:
- -65°C ~ 150°C
BAT54-7 FAQ
1.How can I place an order for BAT54-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54-7 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 BAT54-7 reliable?
The price and inventory of BAT54-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54-7 is usually 5 days.
3.What payment methods are accepted for BAT54-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54-7?
BAT54-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54-7 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 BAT54-7?
For technical support, including BAT54-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54-7 requirements.
6.How does Aetrix verify that BAT54-7 is sourced from the original manufacturer or authorized distributors?
All BAT54-7 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 BAT54-7 meets industry standards.
7.What is the process for return or replacement of BAT54-7?
All BAT54-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54-7, 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 BAT54-7 part is unused and in its original packaging.
Return procedure for BAT54-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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