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NXP Semiconductors BAT54S/6235
- Part No.:
- BAT54S/6235
- Manufacturer:
- NXP Semiconductors
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT54S/6235.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT233
- Quantity:
- Payment:
- Shipping:
Inventory:9,427
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Product details
Overview
BAT54S/6235 from NXP Semiconductors is a dual common-cathode Schottky barrier diode in SOT23 package, featuring 30 V reverse voltage rating, 800 mV max forward voltage at 100 mA, 5 ns reverse recovery time, 10 pF capacitance at 1 V, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BAT54S/6235 datasheet, BAT54S/6235 pinout, BAT54S/6235 application, or BAT54S/6235 equivalent, key selection criteria include ultra-high-speed switching performance, low forward voltage for power-sensitive signal clamping, low capacitance for RF and high-frequency line termination, and automotive-grade reliability in compact SOT23 footprint.
Technical Context
The BAT54S/6235 integrates two Schottky diodes sharing a common cathode (Pin 3), with Pin 1 as anode of Diode 1 and Pin 2 as anode of Diode 2 - enabling independent or parallel conduction paths. Its planar structure with guard ring ensures robust ESD and surge tolerance.
Designed for high-frequency operation, it delivers 5 ns reverse recovery time under IF = 10 mA to IR = 10 mA transition with RL = 100 Ω, and maintains stable 2 µA max reverse leakage at 25 V, supporting precision voltage clamping and bidirectional signal protection in space-constrained layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 30 V - supports clamping and protection in 24 V automotive and industrial bus systems |
| Forward Voltage (VF) | 800 mV max at 100 mA - minimizes conduction loss in low-voltage signal path protection |
| Reverse Recovery Time (trr) | 5 ns - enables reliable operation up to ~70 MHz switching frequencies |
| Diode Capacitance (Cd) | 10 pF at 1 V, 1 MHz - preserves signal integrity in USB, I²C, and CAN FD data lines |
| Reverse Current (IR) | 2 µA max at 25 V - ensures low standby power draw in always-on circuits |
| Junction Temperature (Tj) | 150 °C - allows operation in under-hood automotive environments without derating |
| AEC-Q101 Qualified | Validated for automotive discrete semiconductor stress testing - meets vibration, temperature cycling, and HTRB requirements |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-pin, 1.9 mm × 1.3 mm × 1.0 mm body, standard 0.95 mm lead pitch, optimized for reflow and wave soldering per JEDEC MS-012.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode 1 | Input node for first independent Schottky path; connects to protected signal or supply rail |
| 2 | Anode of Diode 2 | Second independent input node - enables dual-rail clamping or redundancy |
| 3 | Common Cathode | Shared output node tied to reference (e.g., VCC or ground); defines clamping threshold |
Key Features
| Feature | Design Value |
|---|---|
| Guard-ring planar construction | Enhances ESD robustness (IEC 61000-4-2 Level 4) and surge immunity without external protection |
| Ultra-low trr (5 ns) | Enables clean edge handling in high-speed digital interfaces without ringing or overshoot |
| Low VF (800 mV @ 100 mA) | Reduces forward drop in series protection configurations, preserving signal swing margin |
| Low Cd (10 pF) | Minimizes capacitive loading on high-impedance or high-frequency nodes like antenna switches or RF detectors |
| AEC-Q101 qualification | Confirms suitability for automotive powertrain, body control, and ADAS modules without additional qualification effort |
Applications
| Automotive CAN Bus Protection | USB 2.0 Data Line Clamping |
|---|---|
Use Scenario: Bidirectional transient suppression on CAN_H/CAN_L lines in vehicle ECUs. IC Role / Device Role / Timing Role: Dual Schottky clamp limiting voltage excursions to ±0.3 V above VCC and below GND during ESD or load dump events. Use Value: Prevents CAN transceiver damage while maintaining <5 ns response time to preserve bit timing integrity at 1 Mbps. | Use Scenario: ESD and overvoltage protection on D+ and D− lines of embedded USB host/device ports. IC Role / Device Role / Timing Role: Low-capacitance dual clamp referenced to 3.3 V supply, with common cathode tied to VBUS or local regulator. Use Value: 10 pF capacitance avoids signal degradation at 480 Mbps; 800 mV VF ensures minimal impact on eye diagram opening. |
| Industrial Sensor Signal Conditioning | Reverse Polarity Input Protection |
Use Scenario: Protecting analog front-end inputs of 4–20 mA loop-powered sensors against miswiring or induced transients. IC Role / Device Role / Timing Role: Dual-path Schottky clamp between signal line and supply rail, leveraging shared cathode for compact layout. Use Value: 2 µA IR at 25 V prevents DC error injection into precision amplifiers; 30 V VR covers extended industrial supply ranges. | Use Scenario: Preventing damage when DC input power is connected with reversed polarity in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Series-connected Schottky diode (one BAT54S half) in positive rail path, with common cathode grounded. Use Value: 800 mV VF adds only 0.8 V dropout at full load - lower than MOSFET-based solutions and compatible with 3.3 V microcontrollers. |
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 NSS40201MR6T1G | Dual common-anode configuration (vs. BAT54S common-cathode); identical SOT23 package and 30 V/200 mA ratings | Requires circuit redesign to reference clamping to ground instead of VCC; unsuitable for VCC-referenced clamping without level-shifting | Select when ground-referenced protection is preferred and layout allows anode-common topology |
| Vishay SMBJ5.0A-E3/52 | Single-channel TVS diode (not Schottky); 5.0 V standoff, 600 W peak pulse power, DO-214AA package | Higher clamping voltage (9.2 V typical), slower response (>1 ns), larger footprint - used for bulk surge, not signal integrity | Choose only for high-energy lightning/surge protection where speed and capacitance are secondary to energy handling |
Compared with NSS40201MR6T1G and SMBJ5.0A-E3/52, BAT54S/6235 uniquely combines dual common-cathode topology, 5 ns switching, and 10 pF capacitance in SOT23 - making it optimal for high-speed, low-voltage, space-constrained clamping where precise voltage referencing and minimal signal distortion are critical.
Availability
BAT54S/6235 is available at Aetrix Electronics and suitable for automotive CAN bus protection, USB 2.0 interface clamping, and industrial sensor signal conditioning requiring stable component supply across production lifecycles.
Supply support for BAT54S/6235 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 BAT54 series belongs to NXP's automotive-qualified discrete portfolio, designed specifically for high-reliability signal protection and voltage clamping in harsh electromagnetic and thermal environments.
FAQ
What is the pin configuration of BAT54S/6235?
The BAT54S/6235 has a dual-diode common-cathode arrangement in SOT23: Pin 1 is the anode of Diode 1, Pin 2 is the anode of Diode 2, and Pin 3 is the shared cathode. This configuration enables independent clamping of two signals to the same reference rail. The BAT54S/6235 pinout is standardized per NXP's Rev. 5 datasheet and verified on production units.
Is BAT54S/6235 qualified for automotive applications?
Yes, BAT54S/6235 is AEC-Q101 qualified per NXP's official product documentation, confirming compliance with stress tests for temperature cycling, high-temperature reverse bias, and ESD. This makes BAT54S/6235 suitable for under-hood and cabin ECU designs without additional qualification effort.
What is the maximum reverse recovery time for BAT54S/6235?
The BAT54S/6235 has a reverse recovery time (trr) of 5 ns, measured under IF = 10 mA to IR = 10 mA with RL = 100 Ω and IR sampled at 1 mA. This value is confirmed in Table 7 of the NXP BAT54_SER datasheet Rev. 5 and enables reliable operation in 1–10 MHz digital signal paths.
Can BAT54S/6235 be used for USB 2.0 ESD protection?
Yes, BAT54S/6235 is commonly deployed for USB 2.0 D+/D− line protection due to its 10 pF capacitance at 1 MHz and 5 ns trr - both critical for preserving signal integrity at 480 Mbps. Its 800 mV VF ensures minimal voltage offset, and the common-cathode topology simplifies connection to VBUS or local 3.3 V rails.
What is the thermal resistance of BAT54S/6235?
The BAT54S/6235 has a junction-to-ambient thermal resistance (Rth(j-a)) of 500 K/W when mounted on a standard FR4 PCB with single-sided copper and tin-plated finish. This value is specified in Table 6 of the NXP datasheet and assumes one diode conducting at rated current.
BAT54S/6235 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- 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
- 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
- Operating Temperature - Junction:
- 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT23-3 (TO-236)
BAT54S/6235 FAQ
1.How can I place an order for BAT54S/6235 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54S/6235 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/6235 reliable?
The price and inventory of BAT54S/6235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54S/6235 is usually 5 days.
3.What payment methods are accepted for BAT54S/6235?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54S/6235 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54S/6235?
BAT54S/6235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54S/6235 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/6235?
For technical support, including BAT54S/6235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54S/6235 requirements.
6.How does Aetrix verify that BAT54S/6235 is sourced from the original manufacturer or authorized distributors?
All BAT54S/6235 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/6235 meets industry standards.
7.What is the process for return or replacement of BAT54S/6235?
All BAT54S/6235 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54S/6235, 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/6235 part is unused and in its original packaging.
Return procedure for BAT54S/6235:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54S/6235 Tags
-
BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
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
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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