NXP Semiconductors BAT54S/6215
- Part No.:
- BAT54S/6215
- Manufacturer:
- NXP Semiconductors
- Category:
- Diode Arrays
- Package:
- -
- Datasheet:
-
BAT54S/6215.pdf
- Description:
- DIODE SCHOTTKY
- Quantity:
- Payment:

- Shipping:

Inventory:8,238
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Product details
Overview
BAT54S/6215 from NXP Semiconductors is a dual Schottky barrier diode in SOT23 package with common-cathode/anode configuration (Pin 1 = anode D1, Pin 2 = cathode D2, Pin 3 = shared cathode D1 / anode D2), rated for 30 V reverse voltage, 200 mA forward current, and 5 ns reverse recovery time. It delivers low forward voltage (800 mV at 100 mA) and low capacitance (10 pF at 1 V) for high-speed signal clamping in automotive power management circuits.
For engineers reviewing the BAT54S/6215 datasheet, BAT54S/6215 pinout, BAT54S/6215 application, or BAT54S/6215 equivalent, this device is selected for ultra-fast switching, reverse polarity protection, and line termination where AEC-Q101 qualification, thermal robustness to 150 °C junction temperature, and compact SOT23 footprint are required.
Technical Context
The BAT54S/6215 integrates two independent Schottky diodes in a single SOT23-3 package with cross-connected terminals enabling bidirectional clamping or dual-path rectification. Its planar structure with guard ring ensures stress protection under transient conditions.
Designed for operation up to 150 °C junction temperature, it exhibits stable reverse leakage (≤2 µA at 25 V) and fast switching (trr ≤5 ns) due to majority-carrier conduction, eliminating minority-carrier storage delay. Thermal resistance from junction to ambient is 500 K/W in free air.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 30 V - Maximum blocking capability without breakdown; suitable for 24 V automotive supply rail clamping. |
| Forward Voltage (VF) | 800 mV at IF = 100 mA - Low conduction loss enables efficient voltage clamping and minimal power dissipation. |
| Reverse Recovery Time (trr) | 5 ns - Enables operation in >100 MHz signal paths; critical for ESD protection and high-speed data line termination. |
| Diode Capacitance (Cd) | 10 pF at VR = 1 V, f = 1 MHz - Minimizes signal distortion in RF and USB/CAN bus interface lines. |
| Forward Current (IF) | 200 mA continuous - Supports sustained current in reverse polarity protection and DC bias networks. |
| Junction Temperature (Tj) | 150 °C - Rated for under-hood automotive environments without derating at ambient ≤125 °C. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: SOT23 (TO-236AB), 3-lead surface-mount plastic package with 1.9 mm × 1.1 mm body, 0.95 mm height, and standard 0.95 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode 1 | Input node for first Schottky path; connects to protected signal or supply line requiring forward conduction. |
| 2 | Cathode of Diode 2 | Output node for second Schottky path; used in cross-connected clamp configurations or dual-rail protection. |
| 3 | Common terminal: Cathode of Diode 1 & Anode of Diode 2 | Shared node enabling bidirectional clamping or series-connected dual-diode operation without external wiring. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Enhances ESD and surge immunity by preventing edge breakdown; validated per AEC-Q101 stress tests. |
| Ultra-low trr (5 ns) | Enables use in >100 MHz digital interfaces without signal integrity degradation from slow turn-off. |
| Low VF (240 mV at 0.1 mA) | Permits reliable turn-on at microamp-level bias currents-critical for low-power sensor interface protection. |
| 10 pF capacitance | Preserves signal rise/fall times in USB 2.0, CAN FD, and LIN bus termination applications. |
| AEC-Q101 qualification | Confirms suitability for automotive powertrain, body control, and ADAS modules without additional qualification effort. |
Applications
| Automotive Reverse Polarity Protection | High-Speed Data Line Clamping |
|---|---|
|
Use Scenario: Protecting 12 V/24 V infotainment head unit inputs against battery misconnection during service. IC Role / Device Role / Timing Role: Dual Schottky configured as back-to-back clamps on power rails to shunt reverse current before fuse activation. Use Value: Prevents catastrophic failure of downstream DC-DC converters using only 30 V VR rating and 200 mA IF handling. |
Use Scenario: ESD and overvoltage suppression on CAN_H/CAN_L differential pair in vehicle networking nodes. IC Role / Device Role / Timing Role: Fast-switching Schottky diode pair providing sub-5 ns clamping response to IEC 61000-4-2 transients. Use Value: Maintains CAN FD bit timing integrity with 10 pF Cd and 5 ns trr-no added jitter or pulse distortion. |
| USB Port Overvoltage Protection | Signal Level Translation Clamp |
|
Use Scenario: Safeguarding USB 2.0 D+/D− lines in telematics gateway against hot-plug induced surges. IC Role / Device Role / Timing Role: Low-capacitance dual diode clamping to 3.3 V rail while preserving 480 Mbps signaling eye diagram. Use Value: 10 pF Cd limits impedance mismatch; 800 mV VF ensures clamping threshold stays below USB receiver damage threshold. |
Use Scenario: Level-shifting 5 V logic signals to 3.3 V microcontroller GPIOs in body electronics modules. IC Role / Device Role / Timing Role: Forward-biased Schottky limiting peak input to VCC + 0.8 V, protecting I/O pins from overvoltage. Use Value: 240 mV VF at 0.1 mA enables precise clamping at low drive strength-no external resistors needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40201MR6T1G | SOT-23 package, same pinout (1=A1, 2=K2, 3=K1/A2), but VF = 750 mV @ 100 mA and trr = 6 ns. | Marginally faster VF but slightly slower trr; identical AEC-Q101 qualification status. | Select when lower forward drop is prioritized over absolute minimum recovery time. |
| Vishay SMBJ5.0A-E3/52 | DO-214AA package, single diode, 5.0 V standoff, 600 W peak pulse power-no pin compatibility or dual-diode function. | Used for bulk transient suppression, not signal-level clamping or bidirectional protection. | Choose only for high-energy surge scenarios where SOT23 size and dual functionality are not required. |
Compared with BAT54S/6215, the NSS40201MR6T1G offers a 50 mV VF advantage but trades 1 ns in trr; the SMBJ5.0A-E3/52 provides higher surge capacity but lacks the integrated dual-diode topology and SOT23 footprint essential for space-constrained signal-line protection.
Availability
BAT54S/6215 is available at Aetrix Electronics and suitable for automotive electronics, industrial communication interfaces, and portable device power management requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BAT54S/6215 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The BAT54S/6215 belongs to NXP's automotive-qualified discrete portfolio, engineered specifically for robust signal integrity and power rail protection in harsh-temperature vehicle subsystems.
FAQ
What is the pin configuration of BAT54S/6215?
The BAT54S/6215 has three terminals in SOT23: Pin 1 is the anode of Diode 1, Pin 2 is the cathode of Diode 2, and Pin 3 serves as the common cathode of Diode 1 and anode of Diode 2. This arrangement supports bidirectional clamping and dual-path protection without external interconnects, as confirmed in NXP's Rev. 5 datasheet Figure 5 and Table 2.
Is BAT54S/6215 qualified for automotive use?
Yes, BAT54S/6215 is AEC-Q101 qualified per Section 8.1 of the NXP datasheet, having passed stress tests including high-temperature reverse bias, temperature cycling, and ESD. It is approved for use in automotive powertrain, body control, and infotainment systems where reliability under thermal and electrical stress is mandatory.
What is the maximum reverse recovery time for BAT54S/6215?
The maximum reverse recovery time (trr) for BAT54S/6215 is 5 ns, measured under specified test conditions (IF = 10 mA to IR = 10 mA, RL = 100 Ω, IR = 1 mA), as documented in Table 7 of the NXP datasheet. This value enables reliable operation in high-frequency signal paths such as CAN FD and USB 2.0 interfaces.
Can BAT54S/6215 replace BAT54C or BAT54A in existing designs?
No-BAT54S/6215 has a unique pinout (anode–cathode–common) distinct from BAT54C (common cathode) and BAT54A (common anode). Substituting without PCB revision risks incorrect biasing or open circuits. The BAT54S/6215 must be used only in designs explicitly laid out for its cross-connected dual-diode topology.
What thermal performance can be expected from BAT54S/6215 in free air?
In free air, BAT54S/6215 exhibits a thermal resistance from junction to ambient (Rth(j-a)) of up to 500 K/W, as specified in Table 6. At 200 mA forward current and 800 mV VF, power dissipation reaches 160 mW-well within its 250 mW total power limit at Tamb ≤25 °C, allowing safe operation without heatsinking in most SMT layouts.
BAT54S/6215 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Diode Configuration:
- -
- Technology:
- -
- Voltage - DC Reverse (Vr) (Max):
- -
- Current - Average Rectified (Io) (per Diode):
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- -
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- -
- Operating Temperature - Junction:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
BAT54S/6215 FAQ
1.How can I place an order for BAT54S/6215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54S/6215 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 BAT54S/6215 reliable?
The price and inventory of BAT54S/6215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54S/6215 is usually 5 days.
3.What payment methods are accepted for BAT54S/6215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54S/6215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54S/6215?
BAT54S/6215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54S/6215 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 BAT54S/6215?
For technical support, including BAT54S/6215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54S/6215 requirements.
6.How does Aetrix verify that BAT54S/6215 is sourced from the original manufacturer or authorized distributors?
All BAT54S/6215 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 BAT54S/6215 meets industry standards.
7.What is the process for return or replacement of BAT54S/6215?
All BAT54S/6215 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54S/6215, 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 BAT54S/6215 part is unused and in its original packaging.
Return procedure for BAT54S/6215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54S/6215 Tags

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