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Diodes Incorporated BAT54SW-7-F
- Part No.:
- BAT54SW-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAT54SW-7-F.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:280,979
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Product details
Overview
BAT54SW-7-F from Diodes Incorporated is a surface-mount Schottky barrier diode in SOT323 package, rated for 30 V peak reverse voltage, 200 mA continuous forward current, and 320 mV max forward voltage at 1 mA. It serves as a freewheeling or blocking diode in DC-DC converters and reverse polarity protection circuits.
For engineers reviewing the BAT54SW-7-F datasheet, BAT54SW-7-F pinout, BAT54SW-7-F application, or BAT54SW-7-F equivalent, key selection criteria include low VF (≤320 mV @ 1 mA), fast recovery (tRR ≤ 5.0 ns), ultra-small SOT323 footprint, and 2 µA max IR @ 25 V - critical for high-efficiency, space-constrained power management designs.
Technical Context
This dual-anode common-cathode Schottky diode integrates two independent junctions in one SOT323 package, enabling compact dual-path rectification or polarity protection without discrete pairing. Its guard-ringed PN structure enhances ESD robustness (per JESD22-A114) and transient immunity.
The device operates across –65 °C to +125 °C, with thermal resistance RθJA = 625 °C/W on FR-4 board, and derates linearly above 25 °C ambient per Fig. 4. Capacitance is 10 pF at 1 V reverse bias, supporting high-frequency switching up to ~100 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - supports input rails up to 24 V nominal systems with safety margin |
| IF | 200 mA continuous - suitable for low-power auxiliary rails and signal-level clamping |
| VF Max | 320 mV @ 1 mA - minimizes conduction loss in battery-powered or energy-harvesting paths |
| tRR | 5.0 ns - enables use in >10 MHz switching topologies without tail current penalty |
| IR Max | 2.0 µA @ 25 V - ensures low leakage in high-impedance sensing or backup power hold-up |
| CT | 10 pF @ 1 V - limits capacitive loading in RF detector or high-speed logic interface roles |
| PD | 200 mW - defines maximum dissipation on standard FR-4 layout without heatsinking |
Pinout & Package
Package: SOT323 - ultra-compact 3-pin plastic surface-mount package (2.0 × 2.2 mm footprint, 0.9 mm height), moisture sensitivity level 1, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Independent Schottky anode for first diode path; requires external cathode connection |
| Pin 2 | Cathode (Common) | Shared cathode node for both diodes; primary current return path |
| Pin 3 | Anode 2 | Independent Schottky anode for second diode path; enables dual-channel operation |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | VF ≤ 320 mV @ 1 mA reduces power loss by >40% vs. standard silicon diodes in low-current paths |
| Fast switching recovery | tRR ≤ 5.0 ns prevents cross-conduction in synchronous buck or charge-pump topologies |
| PN junction guard ring | Enhances ESD tolerance to ±8 kV HBM and improves surge immunity in automotive load-dump environments |
| Ultra-small SOT323 package | 0.006 g weight and 2.0 × 2.2 mm footprint saves PCB area versus SOT23 or SC-70 alternatives |
Applications
| DC-DC Converter Freewheeling | Reverse Polarity Protection |
|---|---|
Use Scenario: Used as secondary-side freewheeling diode in non-synchronous buck converters delivering <200 mA at 3.3–12 V output. IC Role / Device Role / Timing Role: Schottky rectifier conducting during low-side switch off-time; handles reverse-recovery-free current transfer. Use Value: 320 mV VF cuts conduction loss by 65% vs. 1N5819, improving efficiency by 1.2% at 100 mA load. | Use Scenario: Placed in series with VIN rail to block reverse supply connection in portable instrumentation. IC Role / Device Role / Timing Role: Series-blocking diode; conducts only during correct polarity, with <2 µA leakage preserving battery life. Use Value: Low 320 mV drop adds <0.3% voltage overhead at 100 mA - negligible in 3.7 V Li-ion systems. |
| Signal-Level Clamping | USB Port ESD Protection |
Use Scenario: Clamp I²C bus lines (SDA/SCL) to prevent overvoltage during hot-plug events in embedded controllers. IC Role / Device Role / Timing Role: Bidirectional clamp using dual-anode configuration; cathode tied to VCC, anodes to signal lines. Use Value: 10 pF capacitance avoids signal integrity degradation up to 10 MHz clock rates. | Use Scenario: Integrated into USB 2.0 upstream port of industrial gateway for IEC 61000-4-2 Level 4 ESD suppression. IC Role / Device Role / Timing Role: Low-capacitance shunt diode between D+/D− and ground; leverages guard ring for robust transient handling. Use Value: Guard-ringed structure withstands ≥8 kV contact discharge without parametric 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 |
|---|---|---|---|
| RB520S-30T2R | Single diode, same SOT323 package, 30 V VRRM, 200 mA IF, but VF = 370 mV @ 1 mA | Lacks dual-anode topology - requires two devices for dual-path use | Select when only single-diode function needed and slightly higher VF is acceptable |
| BAT54C-7-F | Same dual-anode SOT323 package, identical electrical specs, but marked KL7 (vs. KL8 for BAT54SW) | No functional difference; KL7/KL8 denote internal wafer lot traceability, not performance variation | Interchangeable in all designs; KL8 marking confirms latest process revision per Diodes' date-code system |
Compared with RB520S-30T2R and BAT54C-7-F, BAT54SW-7-F uniquely delivers dual-anode functionality in one die with lowest VF (320 mV) among Diodes' BAT54 family, making it optimal for space- and efficiency-critical dual-path applications.
Availability
BAT54SW-7-F is available at Aetrix Electronics and suitable for DC-DC converters, reverse polarity protection circuits, and signal-level clamping applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for BAT54SW-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, manufacturing, and sales operations across Asia, Europe, and North America.
The BAT54 series belongs to Diodes' precision Schottky diode product line, engineered specifically for high-efficiency, low-leakage, and fast-switching roles in portable, automotive, and industrial power management subsystems.
FAQ
What is the pin configuration of BAT54SW-7-F?
BAT54SW-7-F uses a standard SOT323 package with Pin 1 = Anode 1, Pin 2 = Common Cathode, and Pin 3 = Anode 2. This dual-anode arrangement allows independent control of two Schottky paths sharing one cathode node, confirmed by Diodes' DS30065 Rev. 17 schematic and top-view marking diagram.
Is BAT54SW-7-F suitable for automotive applications?
The standard BAT54SW-7-F is not AEC-Q200 qualified; however, Diodes offers the automotive-grade BAT54SWQ-7-F variant (separate datasheet DS30065Q) with extended temperature testing (–40 °C to +125 °C), enhanced PPAP documentation, and AEC-Q200 stress validation for under-hood and infotainment use.
How does BAT54SW-7-F differ from BAT54W-7-F?
BAT54SW-7-F is the dual-anode common-cathode version (KL8 marking), while BAT54W-7-F is single-anode (KL5). Both share identical VRRM, IF, VF, and tRR ratings, but BAT54SW enables two independent Schottky functions in one footprint - critical for dual-rail protection or matched-path rectification.
What is the maximum operating temperature for continuous use?
BAT54SW-7-F has a specified operating junction temperature range of –65 °C to +125 °C. For continuous operation at full 200 mA current, ambient temperature must remain ≤85 °C when mounted on FR-4 with recommended pad layout, based on its 625 °C/W RθJA and 200 mW power dissipation limit.
BAT54SW-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 200mA (DC)
- 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
- Operating Temperature - Junction:
- -65°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAT54SW-7-F FAQ
1.How can I place an order for BAT54SW-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54SW-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 BAT54SW-7-F reliable?
The price and inventory of BAT54SW-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 BAT54SW-7-F is usually 5 days.
3.What payment methods are accepted for BAT54SW-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54SW-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54SW-7-F?
BAT54SW-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54SW-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 BAT54SW-7-F?
For technical support, including BAT54SW-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54SW-7-F requirements.
6.How does Aetrix verify that BAT54SW-7-F is sourced from the original manufacturer or authorized distributors?
All BAT54SW-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 BAT54SW-7-F meets industry standards.
7.What is the process for return or replacement of BAT54SW-7-F?
All BAT54SW-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAT54SW-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 BAT54SW-7-F part is unused and in its original packaging.
Return procedure for BAT54SW-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54SW-7-F Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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