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Diodes Incorporated BAT54WT-7
- Part No.:
- BAT54WT-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BAT54WT-7.pdf
- Description:
- DIODE SCHOTTKY 30V 100MA SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:25,154
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Product details
Overview
BAT54WT-7 from Diodes Incorporated is a surface-mount Schottky barrier diode in SOD-523 package, rated for 30 V peak reverse voltage, 200 mA forward continuous current, and 5.0 ns reverse recovery time, used for high-speed switching and polarity protection in portable power management circuits.
For engineers reviewing the BAT54WT-7 datasheet, BAT54WT-7 pinout, BAT54WT-7 application, or BAT54WT-7 equivalent, key selection criteria include ultra-low forward voltage (max 400 mV @ 10 mA), ESD-protected junction guard ring, thermal resistance of 667 °C/W on FR-4, and compatibility with automated pick-and-place in space-constrained designs.
Technical Context
This Schottky diode employs a platinum-silicide (PtSi) or similar low-barrier metal-semiconductor junction to achieve fast switching and low forward voltage drop. Its PN junction guard ring structure provides transient suppression and ESD robustness up to ±2 kV HBM without external components.
The device operates across –65 °C to +150 °C and derates linearly above 25 °C ambient, delivering 150 mW maximum power dissipation at room temperature and maintaining stable leakage (<2.0 μA @ 25 V) under reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse blocking capability without breakdown |
| IF(AVG) | 100 mA - Continuous DC forward current rating for reliable long-term operation |
| VF @ 10 mA | 400 mV max - Low conduction loss enabling efficient voltage clamping in 3.3 V/5 V rail protection |
| trr | 5.0 ns - Enables use in >100 MHz switching applications such as RF detector or sample-hold circuits |
| IR @ 25 V | 2.0 μA max - Minimal leakage preserves battery life in always-on sensor nodes |
| RθJA | 667 °C/W - Thermal performance validated on standard FR-4 PCB with recommended pad layout |
| Package | SOD-523 - 1.7 mm × 0.9 mm footprint ideal for wearables and hearing aids |
Pinout & Package
Package: SOD-523 - ultra-compact surface-mount plastic case with cathode band marking; dimensions: 1.70 mm (L) × 0.90 mm (W) × 0.65 mm (H); moisture sensitivity level 1 per J-STD-020D.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to higher-potential node (e.g., input rail) during forward conduction |
| Cathode | Forward current exit / reverse-blocking terminal | Marked with visible band; ties to load or ground; blocks >30 V reverse transients |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast switching | 5.0 ns reverse recovery enables clean signal routing in high-frequency detector circuits |
| Guard ring protected junction | Integrated PN guard ring suppresses ESD-induced latch-up and improves system-level IEC 61000-4-2 immunity |
| Low VF at low current | 320 mV typ @ 1 mA supports accurate voltage reference clamping in precision analog front-ends |
| Green molding compound | Halogen-free, RoHS-compliant package meets IPC-1752A material declaration requirements for export compliance |
Applications
| USB Port Protection | RF Signal Detection |
|---|---|
Use Scenario: Preventing back-powering and ESD ingress on micro-USB or USB-C receptacles in handheld devices. IC Role / Device Role / Timing Role: Polarity-reversal blocking diode placed between VBUS and system PMIC input. Use Value: 400 mV VF minimizes voltage drop on 5 V bus; 30 V VRRM withstands hot-plug transients; SOD-523 fits within 2.0 mm connector keep-out zone. | Use Scenario: Demodulating AM signals or detecting RF envelope in 2.4 GHz ISM-band receivers. IC Role / Device Role / Timing Role: Passive detector diode in crystal radio-style front-end with no bias supply. Use Value: 5 ns trr preserves signal fidelity up to 200 MHz; low junction capacitance (~1.5 pF, inferred from SOD-523 geometry and Schottky physics) maintains high Q in tank circuits. |
| Li-ion Battery Backup Switchover | Low-Power Sensor Node Clamping |
Use Scenario: Automatic switchover between main supply and coin-cell backup in real-time clock modules. IC Role / Device Role / Timing Role: OR-ing diode isolating primary and secondary power domains. Use Value: 2.0 μA IR at 25 V prevents measurable drain on CR2032 over 10-year shelf life; 100 mA IF rating handles RTC+SRAM peak loads. | Use Scenario: Protecting ADC inputs and GPIOs from ESD and overvoltage in environmental sensor nodes. IC Role / Device Role / Timing Role: Input clamp diode tied between analog input and 3.3 V rail. Use Value: Guard ring ensures ≥2 kV HBM robustness without degrading linearity; 320 mV VF threshold enables clamping before silicon oxide breakdown. |
Availability
BAT54WT-7 is available at Aetrix Electronics and suitable for USB port protection, RF signal detection, and Li-ion battery backup switchover requiring stable component supply across high-mix, low-volume production runs.
Supply support for BAT54WT-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 centers across Asia and manufacturing in China, Taiwan, and the U.S.
The BAT54 series targets portable and space-constrained applications where low VF, fast switching, and ESD-hardened construction are essential - especially in consumer, computing, and IoT edge devices.
FAQ
What is the cathode marking convention for BAT54WT-7?
The cathode is marked by a visible dark band at one end of the SOD-523 package body. This band aligns with the cathode terminal in the top-view orientation shown in the datasheet outline drawing. The anode is unmarked and occupies the opposite end.
Can BAT54WT-7 replace BAT54C in existing designs?
No - BAT54WT-7 is a single-diode SOD-523 device, while BAT54C is a dual-common-cathode configuration in SOT-23. Pin count, package size, and internal topology differ fundamentally; substitution requires PCB layout revision and functional validation.
Is BAT54WT-7 suitable for automotive applications?
It is not AEC-Q200 qualified. While its operating temperature range (–65 °C to +150 °C) meets under-hood extremes, Diodes Incorporated does not certify this part for automotive use; qualified alternatives like DSB110M (AEC-Q200) should be selected for such applications.
What is the maximum allowable soldering temperature profile for BAT54WT-7?
The device complies with J-STD-020D Level 1 moisture sensitivity and supports standard lead-free reflow profiles: peak temperature ≤260 °C, time above 217 °C ≤60 seconds, ramp rate ≤3 °C/s. Pre-bake is not required due to Level 1 classification.
BAT54WT-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 100mA
- 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:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
- Operating Temperature - Junction:
- -65°C ~ 150°C
BAT54WT-7 FAQ
1.How can I place an order for BAT54WT-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54WT-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 BAT54WT-7 reliable?
The price and inventory of BAT54WT-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54WT-7 is usually 5 days.
3.What payment methods are accepted for BAT54WT-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54WT-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54WT-7?
BAT54WT-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54WT-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 BAT54WT-7?
For technical support, including BAT54WT-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54WT-7 requirements.
6.How does Aetrix verify that BAT54WT-7 is sourced from the original manufacturer or authorized distributors?
All BAT54WT-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 BAT54WT-7 meets industry standards.
7.What is the process for return or replacement of BAT54WT-7?
All BAT54WT-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54WT-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 BAT54WT-7 part is unused and in its original packaging.
Return procedure for BAT54WT-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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