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Diodes Incorporated BAT54T-7-F
- Part No.:
- BAT54T-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SOT-523
- Datasheet:
-
BAT54T-7-F.pdf
- Description:
- DIODE SCHOTTKY 30V 200MA SOT523
- Quantity:
- Payment:
- Shipping:
Inventory:80,244
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Product details
Overview
BAT54T-7-F from Diodes Incorporated is a surface-mount Schottky barrier diode in SOT523 package, rated for 30 V peak reverse voltage, 200 mA continuous forward current, and 5.0 ns reverse recovery time. It delivers low forward voltage drop (240–1000 mV across 0.1–100 mA), fast switching, and integrated PN junction guard ring for ESD/transient protection-used in portable DC-DC converter output rectification and USB port polarity protection.
For engineers reviewing the BAT54T-7-F datasheet, BAT54T-7-F pinout, BAT54T-7-F application, or BAT54T-7-F equivalent, key selection criteria include its ultra-small SOT523 footprint, sub-1 V forward drop at 10 mA, 10 pF junction capacitance at 10 V, thermal resistance of 570 °C/W, and automotive-grade variant availability (BAT54TQ-7-F).
Technical Context
This Schottky diode uses a planar epitaxial construction with a PN junction guard ring to suppress edge breakdown and improve transient robustness. Its low barrier height enables fast carrier injection/extraction, resulting in 5.0 ns reverse recovery time under 10 mA switching conditions with 100 Ω load.
The device operates across –65 °C to +150 °C and dissipates up to 220 mW on FR-4 PCB with recommended pad layout. Its 10 pF capacitance at 10 V reverse bias supports high-frequency signal routing and RF detector applications without significant capacitive loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - maximum repetitive reverse blocking capability without avalanche conduction |
| IFM | 200 mA - max continuous forward current under thermal limits on standard FR-4 board |
| tRR | 5.0 ns - measured reverse recovery time enabling >100 MHz switching in clamp/snubber circuits |
| VF @ 10 mA | 320 mV - low forward drop reduces conduction loss in battery-powered 3.3 V rail clamping |
| CT @ 10 V | 10 pF - junction capacitance suitable for RF detector and high-speed logic interface isolation |
| RθJA | 570 °C/W - thermal resistance defines derating curve: usable up to 150 °C ambient at ≤120 mA |
Pinout & Package
Package: SOT523 - ultra-compact 3-pin surface-mount plastic package (1.60 × 1.60 × 0.65 mm), moisture sensitivity level 1, matte tin-plated leads, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry | Connected to higher-potential node in reverse polarity protection or rectifier path |
| Cathode (Pin 2) | Forward current exit / reverse blocking terminal | Internally tied to package tab; must be routed to lower-potential reference or ground plane |
| No Connect (Pin 3) | Unused internal die pad | Electrically isolated; no PCB connection required per datasheet mechanical drawing |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low VF at low current | 240 mV @ 0.1 mA enables precision voltage clamping in sensor bias networks |
| Guard ring protected junction | PN guard ring suppresses edge leakage and improves ESD robustness to >8 kV HBM |
| SOT523 footprint | 1.6 mm × 1.6 mm area saves >60% board space vs. SOT23 in wearables and TWS charging circuits |
| Lead-free & green compliant | Meets RoHS 3, halogen-free (<900 ppm Br/Cl, <1000 ppm Sb), UL 94V-0 molding compound |
Applications
| USB Port Polarity Protection | Low-Voltage DC-DC Output Rectification |
|---|---|
Use Scenario: Preventing damage from reversed USB cable insertion in portable chargers and OTG accessories. IC Role / Device Role / Timing Role: Unidirectional current steering diode placed in series with VBUS line. Use Value: 320 mV VF at 10 mA minimizes voltage drop and maintains 4.75 V minimum at host port under full 500 mA load. | Use Scenario: Synchronous rectifier replacement in 3.3 V buck converter outputs for IoT sensors. IC Role / Device Role / Timing Role: Freewheeling diode during high-side FET off-time. Use Value: 5.0 ns tRR allows clean turn-off before next cycle, reducing cross-conduction loss in 2 MHz switching designs. |
| RF Signal Detector | ESD-Sensitive I/O Clamping |
Use Scenario: Demodulating 2.4 GHz ISM band signals in BLE antenna interface circuits. IC Role / Device Role / Timing Role: Envelope detector diode converting RF amplitude to baseband DC. Use Value: 10 pF CT at 10 V ensures minimal detuning of matching network while maintaining >40 dB dynamic range. | Use Scenario: Protecting GPIO pins of microcontrollers in industrial HMI panels exposed to field ESD events. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp between I/O and ground. Use Value: Guard ring structure sustains >8 kV contact discharge per IEC 61000-4-2 without parameter shift or failure. |
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 SOT523 package; VF = 370 mV @ 10 mA (higher by 50 mV); RθJA = 620 °C/W | Marginally higher conduction loss in battery-fed 1.8 V logic rails | Prefer BAT54T-7-F where <350 mV VF at 10 mA is critical for low-power wake-up circuits |
| BAT54C-7-F | Identical specs but dual-common-cathode configuration; same VF/tRR/RθJA | Requires redesign for single-diode placement; not drop-in for BAT54T's anode-cathode layout | Select only when dual-channel clamping or matched pair tracking is needed in compact space |
Compared with SBAT54LT1G and BAT54C-7-F, BAT54T-7-F offers the lowest VF at low currents and a dedicated single-diode SOT523 layout-making it optimal for space-constrained, ultra-low-power polarity protection and RF detection where voltage headroom and layout simplicity are decisive.
Availability
BAT54T-7-F is available at Aetrix Electronics and suitable for USB power management, wearable sensor front-ends, and BLE RF detector circuits requiring stable component supply and long-term production continuity.
Supply support for BAT54T-7-F 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 US.
The BAT54 series belongs to Diodes' high-reliability Schottky diode product line, engineered specifically for space-constrained, low-voltage, high-speed applications in portable electronics and industrial interfaces.
FAQ
What is the maximum junction temperature for BAT54T-7-F?
The absolute maximum junction temperature is +150 °C, and the device is rated for continuous operation across –65 °C to +150 °C ambient. Derating begins above 25 °C ambient per Figure 4: at 100 °C ambient, maximum IF drops to ~120 mA on standard FR-4 layout.
Is BAT54T-7-F suitable for automotive applications?
The BAT54T-7-F is not AEC-Q200 qualified. For automotive use, Diodes specifies the BAT54TQ-7-F variant, which undergoes extended temperature cycling, HTOL, and ESD testing per AEC-Q200 Rev D and is documented in a separate datasheet (DS30259Q).
Does BAT54T-7-F have a built-in ESD protection structure?
Yes-it integrates a PN junction guard ring that provides inherent transient suppression and meets >8 kV HBM ESD rating per JEDEC JESD22-A114. This eliminates need for external TVS in many low-energy I/O protection schemes.
What is the polarity marking for BAT54T-7-F in SOT523 package?
The cathode is marked by a band adjacent to Pin 2 (center pin) on the top surface. Pin 1 (anode) is at the left end when the marking band is oriented left-to-right; Pin 3 (NC) is at the right end. Mechanical drawing confirms Pin 2 is cathode and Pin 3 is unconnected.
BAT54T-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- 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:
- 1 V @ 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 @ 10V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
- Operating Temperature - Junction:
- -65°C ~ 125°C
BAT54T-7-F FAQ
1.How can I place an order for BAT54T-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54T-7-F 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 BAT54T-7-F reliable?
The price and inventory of BAT54T-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54T-7-F is usually 5 days.
3.What payment methods are accepted for BAT54T-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54T-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54T-7-F?
BAT54T-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54T-7-F 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 BAT54T-7-F?
For technical support, including BAT54T-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54T-7-F requirements.
6.How does Aetrix verify that BAT54T-7-F is sourced from the original manufacturer or authorized distributors?
All BAT54T-7-F 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 BAT54T-7-F meets industry standards.
7.What is the process for return or replacement of BAT54T-7-F?
All BAT54T-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAT54T-7-F, 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 BAT54T-7-F part is unused and in its original packaging.
Return procedure for BAT54T-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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