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Nexperia USA Inc. BAT54A,235
- Part No.:
- BAT54A,235
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT54A,235.pdf
- Description:
- DIODE ARR SCHOTTKY 30V TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:90,872
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Product details
Overview
BAT54A,235 from Nexperia is a dual common-anode Schottky barrier diode in SOT23 package, designed for ultra-high-speed switching and reverse polarity protection. It features 30 V reverse voltage rating, 800 mV typical forward voltage at 100 mA, 2 µA reverse leakage at 25 V, 10 pF capacitance at 1 V, and 5 ns reverse recovery time - enabling use in USB data line clamping and low-voltage DC power rail protection.
For engineers reviewing the BAT54A,235 datasheet, BAT54A,235 pinout, BAT54A,235 application, or BAT54A,235 equivalent, key selection criteria include its dual-diode common-anode configuration, low VF/low trr trade-off for high-frequency signal integrity, thermal resistance of 500 K/W on FR4 PCB, and non-automotive qualification status requiring explicit validation for industrial control or consumer power management designs.
Technical Context
The BAT54A,235 integrates two independent Schottky diodes sharing a common anode terminal (Pin 3), with separate cathodes (Pins 1 and 2), forming a compact dual-diode solution for bidirectional signal clamping or dual-rail protection. Its planar structure includes a guard ring for ESD and transient stress protection.
It operates within −55 °C to 150 °C ambient range, supports pulsed forward currents up to 600 mA (non-repetitive), and delivers stable performance under low-duty-cycle conditions (δ ≤ 0.02) due to minimal thermal runaway risk - critical for battery-powered interface circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 30 V - defines maximum allowable DC or peak AC reverse bias before breakdown; suitable for 24 V system rail clamping. |
| Forward Voltage (VF) | 800 mV @ 100 mA - enables low-loss rectification and clamping in 3.3 V/5 V logic interfaces without excessive voltage drop. |
| Reverse Current (IR) | 2 µA @ 25 V - ensures minimal leakage-induced power loss in always-on battery backup paths. |
| Diode Capacitance (Cd) | 10 pF @ 1 V - preserves signal integrity above 100 MHz in USB 2.0 or LVDS termination applications. |
| Reverse Recovery Time (trr) | 5 ns - supports clean switching in >50 MHz digital signal routing and ESD transient suppression. |
| Junction Temperature (Tj) | 150 °C - allows operation in sealed enclosures or thermally constrained PCB layouts without derating below 125 °C ambient. |
| Thermal Resistance (Rth(j-a)) | 500 K/W - requires minimum copper pour area on FR4 to sustain 200 mA continuous current without exceeding Tj limit. |
Pinout & Package
Encapsulated in SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body, optimized for reflow soldering per IPC-7095 guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (Cathode 1) | Output node for first diode; connects to protected signal line or low-side clamp path. |
| 2 | K2 (Cathode 2) | Output node for second diode; enables independent clamping of dual signals (e.g., D+ and D−). |
| 3 | A1/A2 (Common Anode) | Shared input node tied to reference rail (e.g., VCC or ground); determines clamping polarity direction. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 800 mV max at 100 mA - reduces conduction loss in portable device power rails and extends battery runtime. |
| Low junction capacitance | 10 pF at 1 V - minimizes signal distortion in high-speed data lines such as USB, HDMI, or MIPI interfaces. |
| Guard ring integration | Planar structure with embedded guard ring - improves robustness against ESD transients per IEC 61000-4-2 Level 4 (±15 kV air). |
| Pulsed current capability | 600 mA non-repetitive peak - handles surge events like hot-swap insertion or load dump without failure. |
Applications
| USB 2.0 Data Line Protection | Low-Voltage DC Power Rail Clamping |
|---|---|
Use Scenario: Protecting D+ and D− lines from ESD and overvoltage during cable hot-plug events in portable peripherals. IC Role / Device Role / Timing Role: Dual-cathode Schottky clamp limiting voltage excursions to ±0.3 V beyond VCC/GND rails. Use Value: Prevents damage to USB transceivers while maintaining <5 ns response time and <10 pF loading on 480 Mbps differential signals. |
Use Scenario: Clamping reverse-polarity transients on 3.3 V or 5 V supply inputs in IoT sensor nodes. IC Role / Device Role / Timing Role: Common-anode dual diode providing bidirectional rail-to-rail clamping during battery swap or adapter misconnection. Use Value: Limits reverse voltage to <0.8 V, avoiding latch-up in downstream LDOs and preserving system reset integrity. |
| High-Speed Logic Interface Termination | RS-485 Receiver Input Protection |
Use Scenario: Terminating unterminated CMOS outputs driving long PCB traces in industrial control modules. IC Role / Device Role / Timing Role: Low-capacitance Schottky pair absorbing overshoot/undershoot energy without distorting edge rates. Use Value: Maintains signal fidelity up to 100 MHz with <5 ns recovery, eliminating ringing without adding series resistance. |
Use Scenario: Protecting RS-485 receiver inputs from induced surges on field wiring in building automation systems. IC Role / Device Role / Timing Role: Cathode-to-line configuration shunting transients to local ground while blocking normal-mode common-mode noise. Use Value: Withstands 2 µA leakage at 25 V, ensuring no DC offset drift in precision differential receivers over temperature. |
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 NSR0230HT1G | Single diode, SOD-123 package, 30 V VR, 420 mV VF @ 100 mA - lower VF but no dual configuration. | Requires two devices for dual-line protection; lacks integrated common-anode topology. | Select when lowest forward drop is prioritized over board space and layout simplicity. |
| Diodes Inc. BAV99LT1G | Same SOT23 dual common-anode structure, 70 V VR, 1.25 V VF @ 100 mA - higher voltage rating but higher VF. | Acceptable for 24 V industrial buses but degrades efficiency in 3.3 V logic domains. | Select when reverse voltage margin >30 V is required and 1.25 V VF is tolerable in clamping path. |
Compared with NSR0230HT1G and BAV99LT1G, BAT54A,235 uniquely balances 30 V rating, 800 mV VF, and dual-cathode/common-anode integration in SOT23 - making it optimal for space-constrained, low-voltage, high-speed interface protection where leakage, capacitance, and layout density are co-optimized.
Availability
BAT54A,235 is available at Aetrix Electronics and suitable for USB interface protection, low-voltage DC power rail clamping, and high-speed logic termination requiring stable component supply across production volumes from prototype to mass manufacturing.
Supply support for BAT54A,235 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 components, with leadership in Schottky diodes, MOSFETs, and ESD protection devices.
The BAT54A,235 belongs to Nexperia's general-purpose Schottky diode product line, engineered for cost-sensitive, high-speed signal integrity and power rail protection in consumer, computing, and industrial applications - not qualified for automotive use.
FAQ
Is BAT54A,235 qualified for automotive applications?
No. BAT54A,235 is explicitly marked as non-automotive qualified in its revision history and legal disclaimers. It lacks AEC-Q101 qualification, automotive-grade screening, and extended temperature validation beyond 150 °C junction. For automotive use, Nexperia offers BAT54A-Q variants with full AEC-Q101 certification and enhanced reliability testing.
What is the maximum continuous forward current for BAT54A,235?
The maximum continuous forward current is 200 mA at Tamb ≤ 25 °C on standard FR4 PCB. This value decreases with rising ambient temperature and is limited by thermal resistance (500 K/W). At 85 °C ambient, derated current drops to approximately 110 mA to maintain Tj ≤ 150 °C.
Can BAT54A,235 be used for bidirectional TVS-like clamping?
No. BAT54A,235 is a unidirectional Schottky diode pair with common anode - it only clamps positive transients to VCC or negative transients to GND depending on anode bias. True bidirectional clamping requires back-to-back diodes or dedicated TVS arrays like PESD5V0S1BA.
How does the guard ring improve reliability in BAT54A,235?
The integrated guard ring mitigates edge leakage and prevents premature avalanche breakdown at the silicon periphery under high electric field stress. In practice, this increases ESD robustness - verified to withstand ≥8 kV HBM and ≥15 kV air-gap discharge - without degrading forward conduction characteristics over lifetime.
BAT54A,235 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Anode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 200mA (DC)
- 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 (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BAT54A,235 FAQ
1.How can I place an order for BAT54A,235 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54A,235 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 BAT54A,235 reliable?
The price and inventory of BAT54A,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54A,235 is usually 5 days.
3.What payment methods are accepted for BAT54A,235?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54A,235 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54A,235?
BAT54A,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54A,235 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 BAT54A,235?
For technical support, including BAT54A,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54A,235 requirements.
6.How does Aetrix verify that BAT54A,235 is sourced from the original manufacturer or authorized distributors?
All BAT54A,235 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 BAT54A,235 meets industry standards.
7.What is the process for return or replacement of BAT54A,235?
All BAT54A,235 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54A,235, 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 BAT54A,235 part is unused and in its original packaging.
Return procedure for BAT54A,235:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54A,235 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
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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