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Diodes Incorporated BAT54T-7
- Part No.:
- BAT54T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SOT-523
- Datasheet:
-
BAT54T-7.pdf
- Description:
- DIODE SCHOTTKY 30V 200MA SOT523
- Quantity:
- Payment:
- Shipping:
Inventory:8,931
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Product details
Overview
BAT54T-7 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), ultra-fast switching, and integrated PN junction guard ring for ESD/transient protection-commonly used in polarity protection and signal clamping circuits in portable power management.
For engineers reviewing the BAT54T-7 datasheet, BAT54T-7 pinout, BAT54T-7 application, or BAT54T-7 equivalent, key selection criteria include its 30 V VRRM rating, sub-1 V VF at 10 mA, 10 pF capacitance at 10 V, 570 °C/W thermal resistance, and SOT523 footprint compatibility with space-constrained DC-DC input stages and USB interface protection.
Technical Context
The BAT54T-7 implements a single anode–cathode Schottky junction optimized for low-loss rectification and fast transient response. Its guard-ringed structure enhances robustness against electrostatic discharge and voltage transients without external components.
Designed for operation from –65 °C to +150 °C, it maintains stable VF and IR across temperature, with typical CT = 10 pF at VR = 10 V and f = 1 MHz-making it suitable for high-frequency signal routing and RF detector biasing where parasitic capacitance must remain below 12 pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse voltage before breakdown; sets upper limit for DC blocking in 24 V rail protection. |
| IFM | 200 mA - Continuous forward current handling; supports low-power signal path rectification without thermal derating below 75 °C. |
| tRR | 5.0 ns - Reverse recovery time; enables use in >100 MHz switching applications such as RF envelope detection. |
| VF @ 10 mA | 320 mV typ - Low conduction loss; reduces voltage drop in battery-fed logic-level clamping networks. |
| CT @ 10 V | 10 pF - Junction capacitance; ensures minimal signal distortion in high-speed data line protection (e.g., USB 2.0 D+/D−). |
| RθJA | 570 °C/W - Thermal resistance to ambient on FR-4; requires ≤100 mW dissipation to stay within 125 °C junction limit at 25 °C ambient. |
| IR @ 25 V | 2.0 µA max - Reverse leakage; maintains high impedance in standby mode of always-on sensor interfaces. |
Pinout & Package
Package: SOT523 - ultra-small plastic surface-mount package (1.60 × 1.60 × 0.55 mm), lead-free matte tin-plated terminals, moisture sensitivity level 1, weight ≈ 0.002 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to higher-potential node in polarity protection; requires PCB trace width ≥0.25 mm for 200 mA continuous routing. |
| Cathode (Pin 2) | Forward current exit / reverse voltage reference | Typically tied to ground or system return; serves as clamp reference in ESD protection circuits. |
| Case / Drain (Pin 3) | Thermal and mechanical anchor | Non-electrical terminal; provides mechanical stability and minor heat conduction path via solder fillet to copper pour. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low VF at low IF | 240 mV @ 0.1 mA enables reliable turn-on in micro-power wake-up circuits with <1 µA quiescent current. |
| Guard-ringed junction | Integrated PN ring suppresses edge breakdown, allowing 2.5 kV HBM ESD rating without external TVS. |
| SOT523 footprint | 1.6 × 1.6 mm outline fits 0402-class board area-ideal for wearables and hearing aid PCBs with <3 mm² real estate. |
| Lead-free & Green compliant | Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb) meets automotive and medical regulatory requirements. |
Applications
| USB Port Protection | Low-Power Sensor Biasing |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D− lines from ESD events and reverse-voltage faults during hot-plug insertion. IC Role / Device Role / Timing Role: Signal-line clamping diode placed between data line and VBUS or ground to shunt transients. Use Value: 5.0 ns tRR prevents data corruption during 480 Mbps signaling; 10 pF CT avoids impedance mismatch in 90 Ω differential pair. | Use Scenario: Providing stable bias current to MEMS pressure sensors operating from coin-cell batteries. IC Role / Device Role / Timing Role: Low-leakage forward path enabling precision current sourcing while blocking reverse leakage from sensor output. Use Value: 2.0 µA IR max at 25 V ensures <1 nA error contribution in picoampere-level sensor front-ends. |
| Portable Power Rail Clamping | RF Detector DC Restoration |
Use Scenario: Preventing reverse current flow from backup supercapacitor into main PMIC during power failover in Bluetooth trackers. IC Role / Device Role / Timing Role: Unidirectional blocking element in series with energy storage path. Use Value: 320 mV VF @ 10 mA limits voltage loss to <3% of 3.3 V rail, preserving runtime efficiency. | Use Scenario: Restoring DC offset after RF envelope detection in 2.4 GHz ISM-band receiver front-ends. IC Role / Device Role / Timing Role: AC-coupled peak detector diode feeding hold capacitor in analog demodulator stage. Use Value: 5.0 ns tRR supports accurate envelope capture up to 200 MHz carrier frequencies without droop distortion. |
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 common-cathode configuration in SOT363; 30 V VRRM, 200 mA IFM per diode, VF = 370 mV @ 10 mA. | Requires shared cathode routing; occupies larger 2.1 × 2.0 mm footprint-less suitable for single-diode space-limited layouts. | Select when dual-channel clamping (e.g., RS-485 A/B lines) is needed on same board area. |
| NSR0230P2T5G | SOD-523 package, 30 V VRRM, 200 mA IFM, VF = 310 mV @ 10 mA, CT = 12 pF @ 10 V. | Higher capacitance increases signal rise-time degradation; not recommended for >100 MHz data paths. | Prefer for cost-sensitive consumer IoT where 12 pF CT is acceptable and SOD-523 assembly infrastructure exists. |
Compared with SBAT54DW-7-F and NSR0230P2T5G, the BAT54T-7 offers the smallest footprint (SOT523), lowest VF at sub-mA currents, and tightest CT control-making it optimal for miniaturized, high-frequency, and ultra-low-power designs where single-diode functionality suffices.
Availability
BAT54T-7 is available at Aetrix Electronics and suitable for USB interface protection, portable power rail clamping, and low-power sensor biasing requiring stable component supply and full RoHS/Green compliance.
Supply support for BAT54T-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' high-reliability Schottky diode product line, engineered specifically for space-constrained, low-voltage, high-speed applications in portable electronics and industrial sensing systems.
FAQ
What is the maximum junction temperature for BAT54T-7 under continuous operation?
The BAT54T-7 has an operating junction temperature range of –65 °C to +150 °C. At 25 °C ambient and 200 mA DC forward current on standard FR-4 with recommended pad layout, junction temperature reaches approximately 115 °C-well within safe margin. Derating begins above 75 °C ambient per Figure 4 in the datasheet.
Does BAT54T-7 meet automotive qualification standards?
No-the BAT54T-7 is not AEC-Q200 qualified. Diodes offers the automotive-grade BAT54TQ-7-F variant, which undergoes additional stress testing and lot traceability per AEC-Q200 Rev D. Use BAT54TQ-7-F for infotainment, body control, or ADAS modules requiring automotive reliability.
Can BAT54T-7 replace BAT54C-7-F in a design?
No-BAT54T-7 is single-anode/single-cathode, while BAT54C-7-F is common-cathode dual diode. Pinout, internal topology, and electrical behavior differ: BAT54C-7-F shares cathode pins (2 and 3), whereas BAT54T-7 uses pins 1 (anode) and 2 (cathode) only. Substitution requires schematic and layout revision.
Is the SOT523 package compatible with standard reflow profiles?
Yes-BAT54T-7's SOT523 package is rated for moisture sensitivity level 1 (MSL-1) and supports JEDEC J-STD-020-compliant reflow. Peak temperature must not exceed 260 °C for ≤10 seconds; ramp rates and soak times should follow IPC/JEDEC J-STD-020D guidelines for small-outline plastic packages.
BAT54T-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- 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:
- 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 FAQ
1.How can I place an order for BAT54T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54T-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 BAT54T-7 reliable?
The price and inventory of BAT54T-7 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 is usually 5 days.
3.What payment methods are accepted for BAT54T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54T-7?
BAT54T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54T-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 BAT54T-7?
For technical support, including BAT54T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54T-7 requirements.
6.How does Aetrix verify that BAT54T-7 is sourced from the original manufacturer or authorized distributors?
All BAT54T-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 BAT54T-7 meets industry standards.
7.What is the process for return or replacement of BAT54T-7?
All BAT54T-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54T-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 BAT54T-7 part is unused and in its original packaging.
Return procedure for BAT54T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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