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Infineon Technologies BAT 54 B5003
- Part No.:
- BAT 54 B5003
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT 54 B5003.pdf
- Description:
- DIODE SCHOTTKY 30V 200MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:7,668
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Product details
Overview
BAT54 B5003 from Nexperia is a silicon Schottky diode in SOT23 package, configured as a single anode-cathode pair with 30 V reverse voltage rating, 200 mA forward current, 5 ns reverse recovery time, and low 400 mV forward voltage at 10 mA - used for clamping, bias isolation, and low-loss signal routing in portable power management circuits.
For engineers reviewing the BAT54 B5003 datasheet, BAT54 B5003 pinout, BAT54 B5003 application, or BAT54 B5003 equivalent, key selection criteria include its 5 ns switching speed, 10 pF junction capacitance at 1 V, AEC-Q101 qualification (except BAT54-02LRH), RoHS-compliant SOT23 footprint, and thermal resistance of ≤245 K/W (junction-to-soldering point).
Technical Context
This Schottky diode leverages a guard ring–protected planar structure to achieve low leakage (<2 µA at 25 V) and fast recovery (trr ≤5 ns). Its low VF (400 mV @ 10 mA) stems from optimized metal–semiconductor contact and shallow junction depth.
The device operates up to 150 °C junction temperature and dissipates 230 mW at TA = 25 °C. Thermal resistance varies by variant: BAT54 has RthJS ≤245 K/W, while BAT54W achieves ≤110 K/W due to enhanced thermal pad design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 30 V - supports rail-to-rail clamping in 24 V automotive and 12 V industrial supply lines without breakdown. |
| IF (Forward Current) | 200 mA continuous - sufficient for biasing small-signal transistors and LED indicators in space-constrained PCBs. |
| trr (Reverse Recovery Time) | 5 ns - enables use in >10 MHz switching nodes, including high-frequency DC-DC converter snubbers and RF detector circuits. |
| VF @ 10 mA | 400 mV - reduces conduction loss by ~60% vs. standard silicon PN diodes, critical for battery-powered sensor nodes. |
| CT @ 1 V, 1 MHz | 10 pF - limits capacitive loading on high-impedance analog inputs (e.g., ADC reference dividers or op-amp feedback paths). |
| IR @ 25 V | 2 µA max - ensures minimal leakage-induced offset in precision voltage clamp or level-shift applications at elevated temperatures. |
| RthJS | ≤245 K/W - defines maximum allowable ambient temperature rise under 230 mW dissipation when mounted on standard epoxy PCB (40×40×1.5 mm). |
Pinout & Package
Package: SOT23 - surface-mount, 3-pin plastic case with standard JEDEC MO-215 outline; pin 1 = anode, pin 2 = cathode, pin 3 = unused (internal die attach tab, not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Main current entry point; connects to higher-potential node during forward conduction (e.g., supply rail or signal source). |
| Pin 2 | Cathode | Main current exit point; ties to lower-potential node (e.g., ground, reference, or load return path). |
| Pin 3 | Thermal Pad / NC | Non-functional mechanical tie-bar; improves solder joint reliability but carries no electrical signal or power path. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring protection | Prevents edge breakdown at high electric fields, enabling stable 30 V VR rating across manufacturing lot and temperature range. |
| Pb-free & RoHS compliant | Meets EU Directive 2011/65/EU; eliminates lead-based solder compatibility concerns and simplifies end-of-life compliance reporting. |
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements (HTOL, TCT, ESD-HBM ≥2 kV), supporting under-hood and infotainment applications. |
| Low VF temperature coefficient | VF drift <0.2 mV/°C above 25 °C - maintains predictable clamping threshold across -40 °C to +125 °C operating range. |
Applications
| USB Port ESD Protection | Automotive CAN Bus Biasing |
|---|---|
Use Scenario: Clamping transient voltages on USB D+/D− lines during hot-plug events or ESD strikes. IC Role / Device Role / Timing Role: Fast-switching Schottky clamp diode placed between data line and VBUS or GND to shunt surge current before IC damage occurs. Use Value: 5 ns trr and 2 µA IR ensure minimal signal distortion during normal operation while responding within nanoseconds to 8 kV HBM ESD pulses. | Use Scenario: Providing termination bias for CAN H/L differential pair in body control modules. IC Role / Device Role / Timing Role: Low-leakage, low-VF diode establishing common-mode voltage offset (typically 2.5 V) on CAN bus without loading transceiver outputs. Use Value: 400 mV VF at 1 mA ensures accurate bias point with <1% error over temperature; AEC-Q101 qualification guarantees reliability in vehicle vibration environments. |
| Portable Device Power Sequencing | RF Detector Input Protection |
Use Scenario: Isolating power domains during startup/shutdown in wearables and IoT sensors to prevent backfeed. IC Role / Device Role / Timing Role: Forward-biased isolation diode placed between LDO output and microcontroller VDD, blocking reverse current during brown-out conditions. Use Value: 200 mA IF rating supports peak MCU current draw; 230 mW Ptot allows sustained operation at 70 °C ambient without derating. | Use Scenario: Protecting sensitive RF detector diode inputs from antenna coupling surges in GNSS receivers. IC Role / Device Role / Timing Role: Low-capacitance (10 pF) clamp limiting input voltage swing to ±0.5 V while preserving RF bandwidth up to 1.6 GHz. Use Value: CT <10 pF minimizes detuning of matching networks; 30 V VR withstands induced transients from nearby cellular antennas without breakdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40201MR6T5G | SOT23, 40 V VR, 200 mA IF, VF = 420 mV @ 10 mA, trr = 6 ns | Higher VR margin suits 36 V industrial rails; slightly slower recovery limits use in >8 MHz switching. | Select when system requires >30 V standoff or tighter IR spec (<1 µA @ 25 V). |
| Diodes Inc. BAS40-04T | SOT23, 40 V VR, 200 mA IF, VF = 410 mV @ 10 mA, trr = 4 ns, CT = 8 pF | Lower capacitance improves RF performance; non-AEC-Q101 rated - unsuitable for automotive. | Prefer for high-frequency analog front-ends where sub-10 pF CT is critical and automotive qualification is not required. |
Compared with BAT54 B5003, NSS40201MR6T5G offers higher voltage margin but trades off speed, while BAS40-04T delivers superior RF linearity at the cost of automotive compliance - choice depends on whether system priority is robustness, frequency response, or qualification scope.
Availability
BAT54 B5003 is available at Aetrix Electronics and suitable for USB port protection, automotive CAN biasing, portable power sequencing, and RF detector input protection requiring stable component supply across production lifecycles.
Supply support for BAT54 B5003 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.
BAT54 belongs to Nexperia's Schottky Diode product line, engineered for low-loss signal integrity and fast transient response in power management, interface protection, and sensing subsystems.
FAQ
Is BAT54 B5003 pin-compatible with BAT54W?
No - BAT54 B5003 uses standard SOT23 with pin 3 as NC thermal tab, while BAT54W employs SOT323 with pin 3 as functional cathode in common-anode configuration. Layout redesign and schematic update are required for substitution.
What is the maximum allowable PCB copper area for full 230 mW power dissipation?
Full 230 mW rating assumes mounting on 40 × 40 × 1.5 mm epoxy PCB with 6 cm² of 1 oz Cu. Reducing copper area below this increases RthJA and requires current derating per the thermal curves in section 6 of the datasheet.
Does BAT54 B5003 support reflow soldering per J-STD-020?
Yes - it is qualified for standard Pb-free reflow profiles (peak 260 °C, 30 s max), with MSL level 1 rating. No pre-bake is required, and moisture sensitivity does not apply due to fully molded plastic package.
Can BAT54 B5003 be used in reverse-biased Zener mode?
No - it is a Schottky diode with no controlled reverse breakdown characteristic. Its 30 V VR rating indicates maximum safe reverse voltage, not a regulated Zener voltage; operation beyond VR risks irreversible avalanche damage.
BAT 54 B5003 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 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 @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT23
- Operating Temperature - Junction:
- 150°C (Max)
BAT 54 B5003 FAQ
1.How can I place an order for BAT 54 B5003 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT 54 B5003 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 BAT 54 B5003 reliable?
The price and inventory of BAT 54 B5003 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT 54 B5003 is usually 5 days.
3.What payment methods are accepted for BAT 54 B5003?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT 54 B5003 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT 54 B5003?
BAT 54 B5003 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT 54 B5003 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 BAT 54 B5003?
For technical support, including BAT 54 B5003 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT 54 B5003 requirements.
6.How does Aetrix verify that BAT 54 B5003 is sourced from the original manufacturer or authorized distributors?
All BAT 54 B5003 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 BAT 54 B5003 meets industry standards.
7.What is the process for return or replacement of BAT 54 B5003?
All BAT 54 B5003 units undergo pre-shipment inspection (PSI). If there is an issue with BAT 54 B5003, 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 BAT 54 B5003 part is unused and in its original packaging.
Return procedure for BAT 54 B5003:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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