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Infineon Technologies BAT54B5003
- Part No.:
- BAT54B5003
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT54B5003.pdf
- Description:
- DIODE SCHOTTKY SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:30,000
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Product details
Overview
BAT54B5003 from Infineon Technologies is a silicon Schottky diode in SOT23 package configured as a common-cathode dual diode, rated for 30 V reverse voltage, 200 mA forward current, and 5 ns reverse recovery time, used for low-loss clamping and bias isolation in portable power management circuits.
For engineers reviewing the BAT54B5003 datasheet, BAT54B5003 pinout, BAT54B5003 application, or BAT54B5003 equivalent, key selection criteria include its 30 V VR rating, 200 mA IF capability, 5 ns trr, 10 pF CT at 1 V, and SOT23-3 common-cathode terminal arrangement.
Technical Context
This dual Schottky diode integrates two anodes sharing one cathode in a single SOT23-3 package, enabling compact dual-path clamping or polarity-selective rectification without cross-conduction risk. Its guard ring protection ensures stable breakdown behavior under transient stress.
Thermal resistance RthJS ≤ 130 K/W (for BAT54-04/-06 variant) supports operation up to 120 °C junction temperature, while VF ranges from 240 mV at 0.1 mA to 800 mV at 100 mA, confirming low forward loss across operating current range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 30 V - maximum blocking voltage before breakdown in reverse bias |
| IF (Forward Current) | 200 mA - continuous DC current handling per diode element |
| trr (Reverse Recovery Time) | 5 ns - fast switching enables use in high-frequency clamping and signal routing |
| CT (Capacitance) | 10 pF at VR = 1 V, f = 1 MHz - low junction capacitance minimizes signal distortion |
| VF (Forward Voltage) | 400 mV at IF = 10 mA - low conduction loss improves efficiency in battery-powered systems |
| RthJS | ≤130 K/W - thermal resistance from junction to soldering point supports 120 °C max case temperature |
| IR (Reverse Current) | 2 µA at VR = 25 V - low leakage preserves signal integrity in high-impedance bias networks |
Pinout & Package
SOT23-3 plastic surface-mount package with gull-wing leads; standardized footprint per JEDEC TO-236AB; marking "TC" identifies common-cathode configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode 1 | Input path for first diode element; connects to signal or supply node requiring clamping |
| 2 | Cathode (common) | Shared return node for both diodes; ties to reference or ground plane |
| 3 | Anode 2 | Input path for second diode element; enables dual independent clamping paths |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring protection | Prevents premature edge breakdown and improves voltage ruggedness under ESD or surge stress |
| Low thermal resistance | RthJS ≤ 130 K/W enables higher sustained current in thermally constrained PCB layouts |
| Common-cathode dual configuration | Reduces component count vs. discrete diodes in dual-rail clamp or OR-ing applications |
| Low VF at low IF | 240 mV @ 0.1 mA supports precision biasing and low-power sensing circuits |
Applications
| USB Port Protection | RF Signal Clamping |
|---|---|
Use Scenario: Clamp transient voltages on USB D+ and D− lines during hot-plug or ESD events. IC Role / Device Role: Dual Schottky clamp limiting signal swing to within ±0.3 V of VBUS/GND rails. Use Value: 5 ns trr and 10 pF CT preserve USB 2.0 signal integrity up to 480 Mbps without added jitter. | Use Scenario: Limit RF input amplitude to LNA or mixer inputs in 2.4 GHz ISM-band receivers. IC Role / Device Role: Low-capacitance AC-coupled clamp protecting sensitive front-end nodes from overdrive. Use Value: 10 pF CT and 240–400 mV VF ensure minimal insertion loss and harmonic generation below –40 dBc. |
| Portable Battery Monitoring | Logic-Level Translation |
Use Scenario: Isolate voltage sense lines from battery pack cells while preventing reverse current flow. IC Role / Device Role: Bias isolation diode pair separating cell voltage dividers from shared ADC reference rail. Use Value: 2 µA IR at 25 V ensures <10 nA leakage error in 16-bit battery voltage measurements. | Use Scenario: Level-shift I²C signals between 1.8 V microcontroller and 3.3 V sensor interface. IC Role / Device Role: Bidirectional clamping diode pair referenced to intermediate bias voltage (e.g., 2.5 V). Use Value: Common-cathode topology allows symmetric clamping thresholds with matched VF characteristics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54CW-GS08 | Same SOT23-3 common-cathode structure; VF = 450 mV @ 10 mA (vs. 400 mV typ. for BAT54B5003) | Higher VF increases conduction loss in low-voltage bias networks | Select when tighter IR spec (<1 µA @ 25 V) is required |
| BAT54C,115 | Identical electrical specs but marked "C"; packaged in 3 k/reel (same as B5003), not 10 k/reel | No functional difference; differs only in reel size and date-code format | Choose for compatibility with existing SMT line reel-handling settings |
Compared with SBAT54CW-GS08 and BAT54C,115, BAT54B5003 offers the lowest typical VF at 10 mA (400 mV), optimal for ultra-low-power biasing, while maintaining identical pinout and thermal performance in SOT23-3.
Availability
BAT54B5003 is available at Aetrix Electronics and suitable for USB port protection, RF front-end clamping, portable battery monitoring, and logic-level translation requiring stable component supply and consistent SOT23-3 packaging.
Supply support for BAT54B5003 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
Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs and discrete devices.
The BAT54 series belongs to Infineon's general-purpose Schottky diode product line, designed specifically for low-loss, high-speed clamping and isolation in space-constrained consumer and industrial electronics.
FAQ
What is the pin configuration of BAT54B5003?
BAT54B5003 uses a SOT23-3 package with Pin 1 = Anode 1, Pin 2 = Common Cathode, Pin 3 = Anode 2. This common-cathode dual-diode layout is confirmed by Infineon's marking code "TC" and package outline documentation dated 2006-08-10.
Is BAT54B5003 qualified for automotive use?
No-BAT54B5003 is explicitly marked "Not for automotive applications" in the 2006 datasheet. While automotive qualification was stated as "ongoing" at that time, no AEC-Q101 qualification report or automotive-grade part number has been published for this specific B5003 reel variant.
How does BAT54B5003 differ from BAT54C?
BAT54B5003 and BAT54C share identical electrical specifications and SOT23-3 common-cathode configuration. The "B5003" suffix denotes Infineon's internal reel packaging standard (10 × 3k reels), whereas "BAT54C" refers to the base type designation used across multiple packaging formats including tape-and-reel and bulk.
What is the maximum junction temperature for continuous operation?
The maximum junction temperature Tj is 150 °C. For BAT54-04 and BAT54-06 variants (including B5003), the maximum case/soldering-point temperature TS is limited to 120 °C, corresponding to RthJS ≤ 130 K/W under specified PCB mounting conditions.
BAT54B5003 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- -
- Voltage - DC Reverse (Vr) (Max):
- -
- Current - Average Rectified (Io):
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- -
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- -
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT23
- Operating Temperature - Junction:
- -
BAT54B5003 FAQ
1.How can I place an order for BAT54B5003 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54B5003 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 BAT54B5003 reliable?
The price and inventory of BAT54B5003 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54B5003 is usually 5 days.
3.What payment methods are accepted for BAT54B5003?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54B5003 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54B5003?
BAT54B5003 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54B5003 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 BAT54B5003?
For technical support, including BAT54B5003 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54B5003 requirements.
6.How does Aetrix verify that BAT54B5003 is sourced from the original manufacturer or authorized distributors?
All BAT54B5003 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 BAT54B5003 meets industry standards.
7.What is the process for return or replacement of BAT54B5003?
All BAT54B5003 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54B5003, 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 BAT54B5003 part is unused and in its original packaging.
Return procedure for BAT54B5003:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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